2024-03-28T09:05:06Z
https://orgprints.org/cgi/oai2
oai:orgprints.org:190
2010-04-12T07:27:18Z
7374617475733D707562
7375626A656374733D316F7267616E696373
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D656E7669726F6E6D656E74:35656D697373696F6E73
74797065733D6A6F75726E616C70
https://orgprints.org/id/eprint/190/
Urban nutrient balance for Bankok
Færge, Jens
Magid, Jakob
de Vries, Fritz Pennig
"Organics" in general
Recycling, balancing and resource management
Air and water emissions
To enhance agricultural sustainability, former linkages between agriculture and urban waste production should be reintroduced. Therefore, to explore the options for recycling of nutrients from mega-cities, a nutrient balance model was developed. The parameterization were established for the Bangkok Province and considers nitrogen (N) and phosphorous (P). To model the food supply, an online database (FAOSTAT) estimating supply at country levels, was employed. It is argued that desaggregation to urban level is reasonable after adjustments for different economy in Bangkok than the average in Thailand. The balance shows that only a small fraction of nutrients are recovered, currently about 7 and 12% respectively, of the amount of N and P in the total food supply. On the other hand most (about 95%), of the total loss of N can be accounted for by elevated N levels in the Chao Phraya River from where also much (about 38%) of the loss of P can be explained. That is, in- and out-flows of N is almost found in balance but a huge amount of P must be accumulated somewhere. However the balance also shows that the Bangkok Province throws out into the river (and the sea) very huge quantities of plant nutrients that could be recovered and reused. For future research is it of particular interest to explore the maximum nutrient recovery fraction in different waste management systems.
Elsevier
2001
Journal paper
NonPeerReviewed
application/pdf
en
/id/eprint/190/1/190.pdf
Færge, Jens; Magid, Jakob and de Vries, Fritz Pennig (2001) Urban nutrient balance for Bankok. Ecological Modelling (139), pp. 63-74.
oai:orgprints.org:191
2012-07-18T10:18:20Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/191/
Hard and soft science issues to be negotiated to improve urban metabolism
Magid, Jakob
Recycling, balancing and resource management
In the industrialised world, waste management systems have developed to maturity without primary concern for recycling. These systems have originally been designed to ensure human health and a high local hygienic standard. More recently environmental concerns have been the driving force behind a technological development of sewage treatment with biological removal of N, P and organic matter. This technology addresses some immediate problems in the aquatic environment, but the sewage sludge from the treatment plants contains considerable quantities of xenobiotic compounds and heavy metals, and only a fraction of the nutrients that entered the urban areas, thus making the sludge a non-attractive fertiliser source. In recent years there has been concern about the sustainability of this state of affairs as regards wastewater handling, as well as concern about the fate of the final waste deposits in the environment. In the mid 1990s Danish organic farmers made a point of refusing to accept sewage sludge as a source of nutrients. This sparked a heated debate, and for a time all farmer organisations refused to accept sewage sludge on their fields, leading to severe problems in urban areas. One of the consequences of this conflict is that municipalities are increasingly seeking alternatives to returning sewage sludge to the land (e.g. burning or dumping), in order to rid their dependence of farmers acceptance.
Another consequence has been that the issue of ‘closing the urban-rural nutrient circle’ as part of a sustainable development has received increasing attention among Danish organic farmers. This issue had been identified already in the early days of the organic movement in Denmark, but has never been a top priority. It was accentuated by a strong Swedish emphasis of agricultural use of human urine from source separating toilets that provided inspiration to look at implementing such techniques in Danish urban areas.
One additional factor that has increased the priorities of the issue was the growing realisation that current day organic farmers have a strong bias towards milk production, due to the natural integration of the clover-grass in the production system, that is essential for ensuring an ample supply of fixed atmospheric nitrogen. If more stockless organic farms (e.g. vegetable and grain production for human consumption) are to become economically sustainable, it is important to find ways of using the land with less emphasis on clover grass. One of the ways of doing this is to increase the amounts of nutrients that can be re-cycled from urban areas in a form that is acceptable to organic farms.
DARCOF
Magid, Jakob
Granstedt, Arthur
Dýrmundson, Ólafur
Kahilouto, Helena
Ruissen, Theo
2002
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
en
/id/eprint/191/1/Hard_and_soft_JM.pdf
Magid, Jakob (2002) Hard and soft science issues to be negotiated to improve urban metabolism. In: Magid, Jakob; Granstedt, Arthur; Dýrmundson, Ólafur; Kahilouto, Helena and Ruissen, Theo (Eds.) DARCOF report nr. 3, DARCOF.
oai:orgprints.org:198
2012-07-18T10:32:41Z
oai:orgprints.org:251
2010-04-12T07:27:21Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D35736F696C
74797065733D7265706F7274
https://orgprints.org/id/eprint/251/
Natur, miljø og ressourcer i økologisk jordbrug
Recycling, balancing and resource management
Soil
I de seneste årtier har der været fokus på at reducere jordbrugets forurening med næringsstoffer og syntetiske pesticider. Tabet af specielt kvælstof til vandmiljøet har ført til omfattende iltsvind i de indre farvande samt en forringelse af kvaliteten af grundvand. Tilsvarende har anvendelsen af pesticider ført til forurening af grundvand, mistanke om skadevirkninger på mennesker og husdyr samt en generel forarming af naturindholdet i agerlandet, herunder bekymring for en række plante- og dyrearter som påvirkes direkte eller indirekte.
Bl.a. som et svar på disse problemer er økologisk jordbrug udviklet som et system, der tilstræber at minimere ressourceforbruget og miljøbelastningen gennem udnyttelse af lokale ressourcer og naturlige reguleringsmekanismer samt ved at udvise forsigtighed i omgangen med naturens mangfoldighed. I økologisk jordbrug anvendes hverken syntetisk fremstillede gødninger, pesticider eller andre vækststoffer. I stedet betragtes en god næringsstofhusholdning samt bevarelse og forbedring af jordens frugtbarhed som grundpiller i økologisk drift. Økologisk jordbrug kan derfor betragtes som et middel til miljøbeskyttelse, hvor reguleringen i høj grad bygger på konsensus om værdier og mål frem for detaljerede regler om pesticid- og gødningsanvendelse. De betragtninger og principper, som ligger til grund for økologisk jordbrug, beskrives i kapitel 1.
Der er imidlertid et stort behov for at få øget viden om, hvorledes økologisk jordbrug påvirker miljø- og naturværdier. Dette behov skal bl.a. ses i lyset af samfundets ønsker om i højere grad at kunne anvende økologisk jordbrug i forbindelse med bevarelse af miljø- og naturværdier. Endvidere er der et behov for at undersøge, hvorledes det økologiske jordbrug kan udvikles i en miljø- og naturvenlig retning, således at økologisk jordbrug i større grad får mulighed for at opfylde sin målsætning om "størst mulig hensyntagen til miljø og natur".
Eksempelvis er det en af de grundliggende målsætninger i økologisk jordbrug at holde hus med næringsstofferne og i størst muligt omfang undgå tab, men de økologiske regler giver ikke i sig selv sikkerhed mod et for stort tab af kvælstof og andre næringsstoffer. Den dyrkningspraksis, som gennemføres på den enkelte økologiske bedrift, har en meget stor indflydelse på tabet af næringsstoffer og jordens frugtbarhed.
Det er derfor vigtigt at kunne give bedre retningslinier for, hvorledes driften kan gennemføres, således at næringsstofhusholdningen optimeres. I kapitel 2 beskrives derfor en række problemstillinger på området, ligesom der foreslås en række ændringer og tiltag, som kan medvirke til en forbedret næringsstofhusholdning.
For at sikre en acceptabel næringsstofforsyning er det nødvendigt for mange økologiske bedrifts-typer at importere næringsstoffer. En del af det økologiske jordbrugs behov for næringsstoffer vil kunne opfyldes gennem en øget recirkulering af næringsstoffer i organiske affaldsprodukter fra by til land, hvilket også ville være i overensstemmelse med de økologiske idealer om brug af lokale ressourcer.
Dette fordrer dog udvikling af effektive opsamlings-, behandlings- og distributionssystemer, som sikrer, at det organiske affald kan recirkuleres uden risiko for spredning af patogene organismer og forurening med uønskede stoffer. I kapitel 3 diskuteres mulighederne for, at det økologiske jordbrug i større omfang kan bidrage til løsning af det konventionelle landbrugs og det øvrige samfunds problemer med recirkulation af næringsstoffer.
"Bevarelse af jordens naturlige frugtbarhed" er en anden grundpille i det tankesæt, som ligger bag økologisk jordbrug. Tanken er bl.a., at en sund jord giver sunde planter, der har en høj ernærings- og sundhedsmæssig værdi for mennesker og husdyr. Det viser sig her, at den økologiske landmand har en række dyrkningsmæssige muligheder for at fremme jordens kvalitet.
Jorden er også hjemsted for en række skadelige mikroorganismer, herunder svampe, som kan nedsætte landbrugsprodukternes kvalitet ved at danne mykotoksiner. Når disse svampe ikke kan reguleres med kemiske hjælpemidler bliver kendskabet til arternes livscyklus af afgørende betydning, for det er gennem dyrkningspraksis, at de gavnlige svampe skal fremmes og de skadelige begrænses. I kapitel 4 beskrives jordens biologi, og der gives forslag, der kan medvirke til at styrke jordens frugtbarhed.
Selv om begrebet "frugtbarhed" ofte forbindes med jordens evne til at ernære afgrøderne, så er det givet, at kvaliteten af jorden har en betydning, som rækker langt ud over det dyrkningsmæssige. Jordens mikrobielle aktivitet har en tæt sammenhæng med jordbundens småinsekter, mider og regnorme – og dermed også med de overjordiske insekter, dyr og fugle.
Livet i jorden er med andre ord med til at fremme dyre- og plantelivet både på marken og i den omgivende natur. Målsætningen om bevarelse af jordens frugtbarhed stemmer derfor overens med en anden grundtanke i økologisk jordbrug, nemlig at "fremme en dyrkningsmæssig praksis, som tager størst mulig hensyn til miljø og natur". I dyrkningen må den økologiske landmand således søge at tage en række hensyn, der fremmer samspillet mellem jord og natur.
Der er en stigende samfundsmæssig interesse i at beskytte og udvikle naturværdier og naturressourcer – både i særlige områder, men også i kulturlandskabet som helhed. I den forbindelse er økologisk jordbrug et alternativ, der i højere grad end konventionelt jordbrug tilgodeser de miljø- og naturværdier, som offentligheden ønsker.
Det forsigtighedsprincip og den helhedstænkning, som dyrkningsreglerne er udtryk for, medfører i mange tilfælde et mindre ressourceforbrug og en mindre negativ effekt på omgivelserne og tillader en større variation af vild flora og fauna i landskabet sammenlignet med produktionen af tilsvarende konventionelle produkter.
I kapitel 5 beskrives den økologiske dyrknings indflydelse på naturkvaliteten i og omkring de dyrkede arealer. I kapitel 6 beskrives mulighederne for at bruge økologisk jordbrug som middel til at fremme lokale miljømål i særligt følsomme landbrugsområder.
Alrøe, Hugo Fjelsted
Andreasen, Claus Bo
1999
Report
NonPeerReviewed
application/pdf
en
/id/eprint/251/1/Rap_03.pdf
Alrøe, Hugo Fjelsted and Andreasen, Claus Bo (Eds.) (1999) Natur, miljø og ressourcer i økologisk jordbrug. FØJO-rapport, no. 3. Forskningscenter for Økologisk Jordbrug .
oai:orgprints.org:1299
2010-04-12T07:28:08Z
7374617475733D756E707562
7375626A656374733D326661726D696E67:376275696C64696E6773
7375626A656374733D34706C616E74:36677265656E686F757365
7375626A656374733D326661726D696E67:326661726D65636F6E
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/1299/
Biogas on-farm: energy and material flow
Schäfer, Winfried
Buildings and machinery
Greenhouses and coverings
Farm economics
Recycling, balancing and resource management
Objectives:
European countries are committed to reduce CO2 emission originating from fossil fuels. On-farm produced biogas may replace energy produced from fossil fuels and so contribute to achieve the target. Up to now only in Germany a greater number of on-farm biogas plants has been established. The data of these plants can be used to evaluate cost and benefit of on-farm biogas production in other European countries. This paper concerns the following questions: Which parameters of biogas plant construction and operation have an influence on profit and sustainability of biogas production on-farm?
Hypothesis:
A biogas plant integrated within a self-contained farm organism is economically more competitive and more sustainable than an industrial biogas production unit of a mainstream farm.
Method:
First, a model is established that describes energy and material flow of two farm types. Farm type one produces biogas from slurry of 100 adult bovine units (ABU) and 10% co-ferment. Biogas powers a diesel engine of 26 kW electric power capacity using 10% ignition diesel fuel. Electric power production covers farm consumption and the surplus is supplied to the main grid. Heat is used for the farm estate surplus remains unused. Farm type two produces the same amount of biogas, but uses a gas motor. Additionally the farm includes a glasshouse of 1000 m2 to make use of electric power surplus and heat surplus. Further, the exhaust of the gas motor substitutes CO2 fertiliser procurement to the glasshouse.
Second, cost and benefit analysis of biogas production and application is done using empirical data of the most recent biogas plant survey in Germany. These data are adjusted to Finnish conditions where necessary.
Third, parameter variation is employed to find out the sensibility of the most important variables in terms of marginal profit and interest yield of investment for the biogas plant.
Results:
Farm type one delivers a positive interest yield of 2,6 % under German conditions. Under Finnish conditions there is no profit possible. Concerning methane production the marginal profit sensibility decreases in the following order: dry matter of slurry > quantity of co-substrate > reactor efficiency in terms of CH4 kg-1 organic dry matter (oDM) > fermentation period > number of ABU. Concerning electric power and heat production the marginal profit sensibility decreases in the following order: Level of electric power compensation > efficiency of energy conversion methane to electric power > price level of fuel oil and electric power.
Farm type two delivers a positive interest yield of 8 % under Finnish conditions. Concerning methane production the marginal profit sensibility does not differ from farm type one except with regard to CO2 fertiliser costs. Concerning electric power and heat production the marginal profit sensibility decreases in the following order: price level of light and heavy fuel oil and electric power > efficiency of energy conversion of methane to electric power > process energy > heating energy and heating period of the farm estate > operating time in h d-1 of the gas motor.
Discussion:
The better economic performance of farm type two under Finnish conditions mainly bases on substitution of CO2 fertiliser by the gas motor exhaust gas. The interest yield is very sensitive on energy input prices; however less sensitive than the interest yield of farm type one in respect of electric power compensation level. Further use of reactor digestion residues as organic fertiliser may improve sustainability of farm type two.
2003
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
en
/id/eprint/1299/1/Schaefer_2003_Biogas_on-farm.pdf
Schäfer, Winfried (2003) Biogas on-farm: energy and material flow. Paper at: Nordic Association of Agricultural Scientists 22nd Congress, "Nordic Agriculture in Global Perspective", Turku, Finland, July 1-4 2003. [Unpublished]
oai:orgprints.org:1575
2010-04-12T07:28:21Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D7265706F727463686170746572
https://orgprints.org/id/eprint/1575/
Rural-urban co-development - challenges to post-industrial society
Ingemann, Jan Holm
Recycling, balancing and resource management
The World Commission (1987) pointed out that sustainable development in general is a
prerequisite to alleviate fatal threats to human future. In this note1 it is stated that it is necessary to return to basic concepts and reflections to ensure that the aim, means, and context are remembered when radical changes to gain sustainability are designed. In particular this is the case when humanity’s social interplay (i.e., technology) with natural life support systems is in focus. Thus, the note is founded on a restatement of basics linked to the essential challenge facing post-industrial societies. In that light it is revealed that the current reactions to the challenge are insufficient because sustainability implies radical rather than marginal changes and that the radical changes inter alia imply a new design of rural - urban co-development.
Magid, Jacob
2002
Report chapter
NonPeerReviewed
application/pdf
en
/id/eprint/1575/1/Rural_urban.pdf
Ingemann, Jan Holm (2002) Rural-urban co-development - challenges to post-industrial society. In: Magid, Jacob (Ed.) Urban Area – Rural Areas and Recycling – The organic way forward?. Danish Research Centre for Organic Farming .
oai:orgprints.org:1920
2014-07-14T09:26:03Z
7374617475733D696E7072657373
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D7265706F7274
https://orgprints.org/id/eprint/1920/
OVERLEVELSE AF INDIKATORORGANISMER OG SMITSTOFFER I KOMPOSTTOILETTER OG VED SIMULERET CENTRALISERET EFTERKOMPOSTERING AF AFFØRING FRA MENNESKER
Møller, J.
Backlund, A.
Jørgensen, L.T.
Forslund, A.
Dalsgaard, A.
Recycling, balancing and resource management
Som resultat af projekterne kan drages følgende hovedkonklusioner om kompostering af fæces fra mennesker: Fæces fra de undersøgte typer af kompostbeholdere bør ikke anvendes til jordbrugsformål uden viderebehandling, da dette skønnes at være behæftet med hygiejne- og sundhedsrisici. Det skyldes, at der ikke blev dokumenteret egentlige termofile temperaturstigninger i fæcesmaterialet i komposttoiletenhederne i Hjortshøj, Dyssekilde og Sverige, og at fækale indikatorbakteriers antal varierede voldsomt, og der ingen entydig tendens var til forekomst af lavere kimtal ved lange opbevaringstider af de opsamlede fækalier.
2003
Report
NonPeerReviewed
application/pdf
en
/id/eprint/1920/1/1920a.pdf
application/pdf
en
/id/eprint/1920/2/1920b.pdf
Møller, J.; Backlund, A.; Jørgensen, L.T.; Forslund, A. and Dalsgaard, A. (2003) OVERLEVELSE AF INDIKATORORGANISMER OG SMITSTOFFER I KOMPOSTTOILETTER OG VED SIMULERET CENTRALISERET EFTERKOMPOSTERING AF AFFØRING FRA MENNESKER. [SURVIVAL OF INDICATOR ORGANISMS AND PATHOGENS IN COMPOST TOILETS AND DURING SIMULATED CENTRALISED COMPOSTING OF FAECES FROM HUMANS.] Økologisk byfornyelse og spildevandsrensning. KVL , Dept. of Agricultural Sciences.
oai:orgprints.org:1922
2012-07-18T09:10:25Z
oai:orgprints.org:1924
2012-07-18T10:34:47Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D7265706F727463686170746572
https://orgprints.org/id/eprint/1924/
EVALUATION OF DIFFERENT BIOLOGICAL WASTE TREATMENT STRATEGIES
Reeh, U.
Møller, J.
Recycling, balancing and resource management
Biological treatment of organic waste by aerobic composting and anaerobic digestion (biogas production) was compared with respect to a number of environmental effects and sustainability criterias including energy balance, nutrient recycling, global warming mitigation potential, emission of xenobiotic compounds and economy. The parameters were assessed based on case studies in the literature as well as our own research. Assessment of energy balance, nutrient recycling and global warming came out in favour of biogas production, but especially the results regarding estimation of global warming mitigation differ according to the assumptions made. Our calculations showed that a fugitive loss of approx. 14% of the biogas produced by anaerobic digestion will turn the scale in favour of composting regarding global warming mitigation. In Europe actual biogas losses from 3.5 to 8.4% are reported but this may be exceeded in developing countries. Regarding emission of xenobiotic compounds composting is much in favour, as recent experiments show that a number of organic micro-pollutants are rapidly degraded during composting as opposed to anaerobic treatment. In most cases, composting is more cost-effective compared to biogas production but estimations of actual costs differ considerably. Published results of Life Cycle Assessment of organic waste management using the ORWARE model generally showed biogas production to have less environmental impact than composting, but it was demonstrated that changes in, e.g. system boundaries or functional units can result in substantial differences on the conclusions as well. In conclusion, the optimum waste planning strategy may be the implementation of an integrated waste treatment system operating with different scales of composting and anaerobic treatment, depending on local conditions.
Danish Research Centre for Organic Agriculture
Magid, J.
Lieblein, G.
Granstedt, A.
Kahiluoto, H.
Dyrmundsson, O.
2002
Report chapter
NonPeerReviewed
application/pdf
en
/id/eprint/1924/1/1924.pdf
Reeh, U. and Møller, J. (2002) EVALUATION OF DIFFERENT BIOLOGICAL WASTE TREATMENT STRATEGIES. In: Magid, J.; Lieblein, G.; Granstedt, A.; Kahiluoto, H. and Dyrmundsson, O. (Eds.) Urban Areas - Rural Areas and Recycling - The organic way forward?. DARCOF Report, no. 3. Danish Research Centre for Organic Agriculture.
oai:orgprints.org:2086
2010-04-12T07:28:48Z
7374617475733D696E7072657373
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D7265706F7274
https://orgprints.org/id/eprint/2086/
OVERLEVELSE AF INDIKATORORGANISMER OG SMITSTOFFER I KOMPOSTTOILETTER OG VED SIMULERET CENTRALISERET EFTERKOMPOSTERING AF AFFØRING FRA MENNESKER
Møller, J.
Backlund, A.
Jørgensen, L.T.
Forslund, A.
Dalsgaard, A.
Recycling, balancing and resource management
Som resultat af projekterne kan drages følgende hovedkonklusioner om kompostering af fæces fra mennesker: Fæces fra de undersøgte typer af kompostbeholdere bør ikke anvendes til jordbrugsformål uden viderebehandling, da dette skønnes at være behæftet med hygiejne- og sundhedsrisici. Det skyldes, at der ikke blev dokumenteret egentlige termofile temperaturstigninger i fæcesmaterialet i komposttoiletenhederne i Hjortshøj, Dyssekilde og Sverige, samt at fækale indikatorbakteriers antal varierede voldsomt, og der ingen entydig tendens var til forekomst af lavere kimtal ved lange opbevaringstider af de opsamlede fækalier.
2002
Report
NonPeerReviewed
application/pdf
en
/id/eprint/2086/1/Faeceskompostrapport.pdf
Møller, J.; Backlund, A.; Jørgensen, L.T.; Forslund, A. and Dalsgaard, A. (2002) OVERLEVELSE AF INDIKATORORGANISMER OG SMITSTOFFER I KOMPOSTTOILETTER OG VED SIMULERET CENTRALISERET EFTERKOMPOSTERING AF AFFØRING FRA MENNESKER. Økologisk byfornyelse og spildevandsrensning. The Royal Veterinary and Agricultural University , Dept. of Agricultural Sciences.
oai:orgprints.org:2087
2010-04-12T07:28:48Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/2087/
LATRINE COMPOSTING – A HYGIENIC EVALUATION
Holmqvist, A.
Møller, J.
Dalsgaard, A.
Recycling, balancing and resource management
Thermophilic composting of faecal matter from urine diverting toilets can effectively reduce the numbers of faecal bacterial indicators and pathogen. Already at 50C, the numbers of pathogens, including the Salmonella phage, and indicator organisms analysed were effectively reduced within a few days of exposure. Although the numbers of enterococci were reduced, they were continuous isolated as purple colonies on Slanetz and Bartleys agar after prolonged exposure at all temperature levels studied. This indicates that certain micro-organisms present in the composted faecal material, Enterococcus spp. or micro-organisms resembling enterococci on the agar medium, can survive and multiply even at 60C. These findings question the use of enterococci as faecal indicators and test organisms to control the efficiency of composting of human faeces. Further work is in progress to identify the taxonomy of these organisms.
2003
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
en
/id/eprint/2087/1/HMDPoster1.pdf
Holmqvist, A.; Møller, J. and Dalsgaard, A. (2003) LATRINE COMPOSTING – A HYGIENIC EVALUATION. Poster at: ECOSAN 2end International Symposium on Ecological Sanitation, Lübeck, Germany, 7-11 April, 2003.
oai:orgprints.org:2088
2010-04-12T07:28:48Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/2088/
REDUCTION OF FAECAL MICROBIOLOGICAL INDICATORS IN DIFFERENT COMPOST TOILETS
Møller, J.
Forslund, A.
Dalsgaard, A.
Recycling, balancing and resource management
Large variations in numbers of faecal indicator bacteria were found irrespective of the storage time of collected human faeces. Little heat seemed generated from composting processes when bin units were stored locally in households. The low reduction in microbiological parameters and very limited temperature increase were generally corroborated by the results obtained in experiment 2 when pathogen indicators were added to thoroughly mixed faecal matter. Even though Salmonella died of rapidly the other faecal bacterial indicators survived in large numbers. We conclude, that the collection and storage of human faeces in the closed plastic bins studied here is associated with only little temperature increase and subsequent reduction in faecal bacterial indicators and pathogens. Thus, the bin units do not seem especially suitable for composting and hygienisation of human faeces
2003
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
en
/id/eprint/2088/1/MFDposter2.pdf
Møller, J.; Forslund, A. and Dalsgaard, A. (2003) REDUCTION OF FAECAL MICROBIOLOGICAL INDICATORS IN DIFFERENT COMPOST TOILETS. Poster at: ECOSAN 2end International Symposium on Ecological Sanitation, Lübeck, Germany, 7-11 April, 2003.
oai:orgprints.org:3352
2012-07-18T09:16:02Z
oai:orgprints.org:3406
2012-07-18T09:44:56Z
oai:orgprints.org:3407
2010-04-12T07:29:48Z
7374617475733D756E707562
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D7265706F7274
https://orgprints.org/id/eprint/3407/
Attitudes towards utilization of composted domestic waste, sludge, urine and faeces as manure in agriculture
Quitzau, Maj-Britt
Moeller, Jacob
Magid, Jakob
Recycling, balancing and resource management
Workshoppens formål var at få en idé om, hvad der spiller ind på offentlighedens villighed til at acceptere genbrug af komposteret husholdningsaffald, slam og fæces som gødning i landbruget. Tanken var at få en indledende brainstorming og diskussion af holdningerne i samfundet.
2004-09
Report
NonPeerReviewed
source
en
/id/eprint/3407/1/3407.doc
Quitzau, Maj-Britt; Moeller, Jacob and Magid, Jakob (2004) Attitudes towards utilization of composted domestic waste, sludge, urine and faeces as manure in agriculture. National Environmental Research Institute of Denmark, Dept. of Policy Analysis .
oai:orgprints.org:3459
2010-04-12T07:29:50Z
7374617475733D707562
7375626A656374733D316F7267616E696373
7375626A656374733D33616E696D616C:31616E696D616C70726F64:316461697279
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D34706C616E74:33636F6D706F7374
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/3459/
Biogas aus Festmist – eine neue Technologie zu Schließung des Nährstoff- und Energiekreislaufes auf dem landwirtschaftlichen Betrieb
Schäfer, Winfried
Evers, Lars
Lehto, Marja
Sorvala, Sanna
Teye, Frederick
Granstedt, Artur
"Organics" in general
Dairy cattle
Recycling, balancing and resource management
Composting and manuring
The Biodynamic Research Institute in Järna developed at the farm Yttereneby a two phase biogas plant. The plant digests manure of dairy cattle and organic residues originating from the farm and the surrounding food processing units containing 17,7 - 19,6 % dry matter. A new technology for continuously filling and discharging the biogas reactor was developed and implemented. Digestion residues are separated into a solid fraction for composting and into a liquid fraction. The solid fraction is suitable for aerobic composting. Initial results show that anaerobic digestion and following aerobic composting of the solid fraction improves the nitrogen balance of the farm compared to mere aerobic composting. Composted biogas plant residues and effluent together contain 70,8 % of input Ntot and 93,3 % of input NH4, merely aerobic digested manure 51,3 % Ntot and 3,9 % NH4 only. Additionally anaerobic digestion improves the energy balance of the farm producing up to 269 l biogas kg-1 VS or 1,7 kWh heat kg-1 VS.
Kassel University Press GmbH, Kassel
Heß, J.C.
Rahmann, G.
2005
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
de
/id/eprint/3459/1/3459.pdf
Schäfer, Winfried; Evers, Lars; Lehto, Marja; Sorvala, Sanna; Teye, Frederick and Granstedt, Artur (2005) Biogas aus Festmist – eine neue Technologie zu Schließung des Nährstoff- und Energiekreislaufes auf dem landwirtschaftlichen Betrieb. [Biogas from manure – a new technology to close the nutrient and energy circuit on-farm.] In: Heß, J.C. and Rahmann, G. (Eds.) Ende der Nische, Beiträge zur 8. Wissenschaftstagung Ökologischer Landbau, Kassel University Press GmbH, Kassel.
oai:orgprints.org:3517
2010-04-12T07:29:53Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D34706C616E74:33636F6D706F7374
74797065733D7265706F7274
https://orgprints.org/id/eprint/3517/
Miljøeffekter af bioforgasning og separering af gylle - indflydelse på lugt, ammoniakfordampning og kvælstofudnyttelse
Hansen, Martin N.
Birkmose, Torkild
Mortensen, Børge
Skaaning, Kent
Recycling, balancing and resource management
Composting and manuring
Risikoen for ammoniaktab under lagring er højere for bioforgasset og separeret gylle, men effektiv overdækning af gyllelagre begrænser effektivt tabet. Med et effektivt flydelag er tabet ens for behandlet og ubehandlet gylle. Bioforgasning og separering af gylle begrænser ammoniaktabet i forbindelse med gyllens udbringning, effekten er højst af separering. Bioforgasning og separering af gylle fører ikke til mærkbar begrænsning af lugtgener fra gyllelagre, lugtgenerne kan dog effektivt begrænses ved effektiv overdækning af lagre. Lugtgenerne i forbindelse med udbringning af gylle er lavere ved udbringning af bioforgasset og separeret gylle end ved udbringning af ubehandlet gylle.
Bioforgasset gylle og separeret gylle giver en højere kvælstofudnyttelse end ubehandlet gylle. Forårsudbragt fiberfraktion giver en kvælstofudnyttelse på 45-50 pct. Efterårsudbragt fiber giver en lavere kvælstofudnyttelse. Tørret og pelleteret fiberfraktion giver en relativ svag kvælstofudnyttelse.
Correll, Anders
2004-06
Report
NonPeerReviewed
application/pdf
en
/id/eprint/3517/1/3517.pdf
Hansen, Martin N.; Birkmose, Torkild; Mortensen, Børge and Skaaning, Kent (editor): Correll, Anders (Ed.) (2004) Miljøeffekter af bioforgasning og separering af gylle - indflydelse på lugt, ammoniakfordampning og kvælstofudnyttelse. [Environmental effects of anaerobic digestion and separation of slurry - odour, ammonia emission and nitrogen utilisation.] Grøn Viden, Markbrug, no. 296. Danish Institute of Agricultural Sciences , Dep. of Agricultural Engineering.
oai:orgprints.org:3549
2010-04-12T07:29:54Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D33616E696D616C:3366656564696E67
74797065733D6A6F75726E616C70
https://orgprints.org/id/eprint/3549/
Sustainable pig nutrition in organic farming: By-products from food processing as a feed resource
Wlcek, Sonja
Zollitsch, Werner
Recycling, balancing and resource management
Feeding and growth
Since keeping nutrient cycles intact is one of the most important goals in organic farming, the option of recycling by-products from organic food processing by feeding them to organically raised pigs was analyzed in this study. A more specific objective was to estimate the potential of this nutrient source in reducing the protein deficiency in organic pig nutrition. Sector-specific questionnaires were sent to 321 processors of organic foods in Austria. The information provided was used to estimate the total quantity available of the respective by-products. Proximate analysis, amino acid and mineral analysis were performed for different by-products. These data were combined with the available quantities of the respective by-products, resulting in the amounts of nutrients potentially recyclable for pig nutrition. Each year 2,400 t of wheat bran, 990 t of rye bran, and 1,300 t of residues from the separation of seed grains are already fed to different kinds of livestock. Some 510 t of stale bread are currently disposed of, but could be used as a highly nutritive feedstuff for pigs, once the problem of collection is solved. Relevant amounts of other energy-rich by-products were found: Currently, about 11,000 t (2,000 t on a dry matter basis) of feed-grade potatoes are composted, resulting in a waste of 27,000 GJ of metabolizable energy (ME). These potatoes could be better utilized as a dietary energy source for approximately 12,300 pigs. Additionally, about 12,900 t of whey from organically produced milk are discarded, which could be used to feed roughly 14,000 pigs. High-protein by-products are scarce. Annually, 80 t and 63 t of expellers from pumpkin seed and sunflower seed, respectively, are produced from organically grown oilseeds. Only small quantities of okara (byproduct of the production of tofu from soybeans) and buttermilk are available. Only 4 % and 5 % of the protein and lysine requirements, respectively, of the pigs currently kept on organic farms in Austria could be covered by by-products rich in protein. Excluding feed-grade potatoes means to lose 18 %, 18 % and 26 % of crude protein (CP), lysine and ME , respectively, of the entire nutrient supply available from organic by-products.
CAB International
2004
Journal paper
NonPeerReviewed
application/pdf
de
/id/eprint/3549/1/raf190159_article.pdf
Wlcek, Sonja and Zollitsch, Werner (2004) Sustainable pig nutrition in organic farming: By-products from food processing as a feed resource. Renewable Agriculture and Food Systems, 19 (3), pp. 159-167.
oai:orgprints.org:3622
2010-04-12T07:29:58Z
7374617475733D756E707562
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/3622/
Measuring degradation of transgenic DNA and screening for horizontal gene transfer from GMO-plant material during composting
Magid, Jakob
Rasmussen, Lasse Dam
Moeller, Jacob
Recycling, balancing and resource management
The experiments show that composting of GM plant residues greatly increases the rate of degradation of transgenic DNA compared to the rate for plant residues left in the soil. If the persistence of transgenic DNA in the environments is considered as the only risk factor, composting is a 'DNA-safe' method to treat GM plant residues. However, even though transgenic plant DNA was not detected in bacterial isolates in our experiments, we cannot conclude that horizontal gene transfer can not take place. The 300 isolates tested proved to be too low a number to be conclusive. The numbers of isolates tested were based on the screenings indicating high transfer, but the screenings were biased apparently because some Bacillus species gave PCR products matching the transgenic DNA. Thus, it is still an open question if composting constitutes a safe way of disposing of GM plant residues. Furthermore, these experiments give rise to other interesting questions, e.g., the behavior of GM plant materials decomposing in waste piles or manure yards under composting-like conditions and the possibility of horizontal gene transfer to indigenous bacteria at the comparably lower temperatures presentat these environments.These questions need to be assessed if the risk associated with the use of GM plants is to be thoroughly investigated.
2004
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
en
/id/eprint/3622/1/3622.pdf
Magid, Jakob; Rasmussen, Lasse Dam and Moeller, Jacob (2004) Measuring degradation of transgenic DNA and screening for horizontal gene transfer from GMO-plant material during composting. Poster at: 1st international Conference on SOIL AND COMPOST ECOBIOLOGY, Leon – Spain, September 15th-17th, 2004. [Unpublished]
oai:orgprints.org:3706
2010-04-12T07:30:01Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D34706C616E74:33636F6D706F7374
7375626A656374733D656E7669726F6E6D656E74:35656D697373696F6E73
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/3706/
Biogaserzeugungspotential aus Gülle und Koppelprodukten in viehhaltenden und viehlosen Betriebssystemen des ökologischen Landbaus
Möller, Dr. Kurt
Stinner, Walter
Deuker, Arno
Leithold, Prof. Dr. Günter
Recycling, balancing and resource management
Composting and manuring
Air and water emissions
In two agricultural systems with and without animal husbandry the potential to produce renewable energy by digesting slurry and organic residues to biogas were assessed. In comparison to some other methods of energy production by biomass biogas production has the advantage of keeping the nutrients of the substrates within the agricultural system. They can be used as fertilisers.
In the investigated system with milk production (0,8 cows ha-1, 8 crops, among them 4 cereals, peas, potatoes and 2 clover grasses with catch crops after winter cereals and peas (see DEUKER et al. 2005), it is possible not only to ferment slurry, but also catch crops and straw of peas and cereals. The methan production potential by digesting only slurry is the equivalent of around 327 l diesel fuel ha-1. By digesting a well developed catch crop it is possible to harvest the equivalent of around 750 l diesel fuel per ha.-1 sown with such crops. Related to the whole system with 4 catch crops within 8 fields it is possible just by including catch crops in the fermentation process with slurry to duplicate the methan harvest of the digesting plant to around 700 l diesel fuel ha-1 a-1. By utilisation of biomass like the straw of peas and other residues it is possible to generate the equivalent of approx. 450 l diesel fuel ha-1. Total biogas production potential by including all fermentable biomass is the equivalent of approx. 1150 l diesel fuel per each ha and year. Usually one third of this energy is necessary to temperate the digester, one third can be converted to electricity and one third can be used to heat buildings in the neighbourhood of the fermentation plant.
In a typical stockless organic agricultural system composed of six crops (clover gras, potatoes, winter wheat, peas, winter wheat and summer wheat with undersown clover grass, with catch crops after winter wheat and peas, see STINNER et al. 2005) biomass of clover grass and catch crops will normally be left on the field and incorporated in the soil. By fermentation of clover grass there is a biogas production potential of around the equivalent of 3300 to 4700 l diesel fuel ha-1 a-1. Digesting catch crops allows a methan yield of ca. 650 to 700 l diesel fuel ha-1, digestion of other residues like straw other 1250 to 1350 l diesel ha-1. The total energy production potential of the whole crop rotation system is the equivalent of around 1700 to 1800 l diesel per ha and year. Removal of crop residues is coupled with removal of substantial quantities of nitrogen, reducing the residual mineralisable nitrogen amounts on fields at the end of the vegetation period and the risk of nitrate leaching.
kassel university press GmbH, Kassel
Heß, J
Rahmann, G
2005
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
de
/id/eprint/3706/1/3706.pdf
Möller, Dr. Kurt; Stinner, Walter; Deuker, Arno and Leithold, Prof. Dr. Günter (2005) Biogaserzeugungspotential aus Gülle und Koppelprodukten in viehhaltenden und viehlosen Betriebssystemen des ökologischen Landbaus. [Potential of biogas production by using slurry and coupled products in organic farming systems with and without animal husbandry.] In: Heß, J and Rahmann, G (Eds.) Ende der Nische, Beiträge zur 8. Wissenschaftstagung Ökologischer Landbau, kassel university press GmbH, Kassel.
oai:orgprints.org:3906
2010-04-12T07:30:11Z
7374617475733D707562
7375626A656374733D35736F696C:346E75747269656E74
7375626A656374733D34706C616E74:31706C616E7470726F64:3363657265616C73
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D34706C616E74:33636F6D706F7374
7375626A656374733D316F7267616E696373:6F7267616E6963732D636F756E7472696573:636F756E74726965732D646B
74797065733D776562
https://orgprints.org/id/eprint/3906/
Kalium til økologiske afgrøder
Tersbøl, Michael
Nutrient turnover
Cereals, pulses and oilseeds
Recycling, balancing and resource management
Composting and manuring
Denmark
Korn kan selv ved lave kaliumtal dyrkes uden udbyttetab, mens bælgplanterne markært og hestebønne, er mere følsomme overfor kaliummangel. På grovsandet jord er der ingen grund til at opretholde et højt kaliumtal, da det giver større tab ved udvaskning. Men visse afgrøder som ært, hestebønne og kartofler kræver tilførsel af kalium om foråret, hvis kaliumtallet er lavt. Disse resultater kommer fra forskning på FØJO's værkstedsarealer.
2004-06
Web product
NonPeerReviewed
application/pdf
en
/id/eprint/3906/1/3906.PDF
Tersbøl, Michael (2004) Kalium til økologiske afgrøder. [Potasium in organic crops.] . Online at http://www.lr.dk/planteavl/diverse/oekovaerk_kaliumforsoeg.htm <http://www.lr.dk/planteavl/diverse/oekovaerk_kaliumforsoeg.htm>.
oai:orgprints.org:3959
2013-04-28T15:54:59Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D6A6F75726E616C70
https://orgprints.org/id/eprint/3959/
Biomass energy in organic farming - the potential role of short rotattion coppice
Jørgensen, Uffe
Dalgaard, Tommy
Kristensen, Erik Steen
Recycling, balancing and resource management
One of the aims of organic farming is to “reduce the use of non-renewable resources (e.g. fossil fuels) to a minimum”. So far, however, only very little progress has been made to introduce renewable energy in organic farming. This paper presents energy balances of Danish organic farming compared with energy balances of conventional farming. In general, the conversion to organic farming leads to a lower energy use (approximately 10% per unit of product). But the production of energy in organic farming is very low compared with the extensive utilisation of straw from conventional farming in Denmark (energy content of straw used for energy production was equivalent to 18% of total energy input in Danish agriculture in 1996).
Biomass is a key energy carrier with a good potential for on-farm development. Apart from utilising farm manure and crop residues for biogas production, the production of nutrient efficient short rotation coppice (SRC) is an option in organic farming. Alder (Alnus spp.) is an interesting crop due to its symbiosis with the actinomycete Frankia, which has the ability to fix up to 185 kg/ha nitrogen (N2) from the air. Yields obtained at different European sites are presented and the R&D needed to implement energy cropping in organic farming is discussed.
Possible win–win solutions for SRC production in organic farming that may facilitate its implementation are; the protection of ground water quality in intensively farmed areas, utilisation of wastewater for irrigation, or combination with outdoor animal husbandry such as pigs or poultry.
Elsevier
2005
Journal paper
NonPeerReviewed
application/pdf
en
/id/eprint/3959/1/3959_Biomass.pdf
Jørgensen, Uffe; Dalgaard, Tommy and Kristensen, Erik Steen (2005) Biomass energy in organic farming - the potential role of short rotattion coppice. Biomass & Bioenergy, 28 (2), pp. 237-248.
oai:orgprints.org:4138
2010-04-12T07:30:21Z
7374617475733D707562
7375626A656374733D37666F6F64:38706F6C696379
7375626A656374733D37666F6F64:3470726F63657373696E67
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D7265706F7274
https://orgprints.org/id/eprint/4138/
Eating Oil
Woodward, Lawrence
Jones, Andy
Policy environments and social economy
Processing, packaging and transportation
Recycling, balancing and resource management
The food system is now even more based on cheap crude oil. Every time we eat, we are all essentially ‘eating oil’. Virtually all of the processes in the modern food system are now dependent upon this finite resource which is nearing its depletion phase.
Moreover, at a time when we should be making massive cuts in the emissions of greenhouse gases into the atmosphere in order to reduce the threat posed by climate change, the food system is lengthening its supply chains and increasing emissions to the point where it is a significant contributor to global warming.
The organic sector should be leading the development of a sustainable food system. Direct environmental and ecological impacts of agriculture ‘on the farm’ are certainly reduced in organic systems. However, global trade and distribution of organic products fritter away those benefits and undermine its leadership role. Not only is the contemporary food system inherently unsustainable, increasingly it is damaging the environment. A different approach - focussed on localization not globalisation - needs to be developed in order to ensure “food supply in a changing climate”.
2002-01
Report
NonPeerReviewed
application/pdf
en
/id/eprint/4138/1/4138.pdf
Woodward, Lawrence and Jones, Andy (2002) Eating Oil. EFRC Pamphlet Series. Elm Farm Research Centre , Policy Research Department.
oai:orgprints.org:4212
2010-04-12T07:30:25Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D7265706F7274
https://orgprints.org/id/eprint/4212/
Effective recycling agriculture around the Baltic Sea: background report
Granstedt, Artur
Seuri, Pentti
Thomsson, Olof
Recycling, balancing and resource management
In this report the historical background and present situation of the plant nutrient balances and surplus of plant nutrients within the agricultural sector in the eight countries of the Baltic Sea catchments area (Sweden, Finland, Estonia, Latvia, Lithuania, Poland, Denmark, Germany and Russia) are presented and analysed.
The Baltic Ecological Recycling Agriculture and Society (BERAS) project is evaluating the consequences of converting the whole agricultural sector according to recycling principles. This analysis is being based on data from selected ecological recycling farms within the Baltic drainage area and will be presented in a series of project reports of which this is the first for Work Package 2, Effects on environment, natural resources and health.
2004-12
Report
NonPeerReviewed
application/pdf
en
/id/eprint/4212/1/4212.pdf
Granstedt, Artur; Seuri, Pentti and Thomsson, Olof (2004) Effective recycling agriculture around the Baltic Sea: background report. Ekologiskt lantbruk, no. 41. Sveriges lantbruksuniversitet , Centrum för uthålligt lantbruk.
oai:orgprints.org:4339
2010-04-12T07:30:32Z
7374617475733D756E707562
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/4339/
Methodology for Sustainability Evaluation in Organic Farming under Colombian Conditions: a Proposal
Escobar, C.A.
Espinosa, A.
Malagon, R.
Zuluaga, A.
Recycling, balancing and resource management
The lack of specific methodologies to evaluate and monitor the impact of agricultural activities on the-biotic, abiotic and socio-economic environment constitutes a technical - scientific barrier for the development and improvement of Organic Agriculture in Colombia.
The proposed methodology consists of:
Step 1: Gathering of information on the organic production system by means of surveys and interviews with farmers.
Step 2: Characterisation and description of the production system.
Step 3: Qualification and quantification of the production system.
Step 4: Identification and evaluation of environmental quality indicators and creation of diagrams
Step 5: Interpretation of results.
This proposal is a first approach for a complete evaluation of any organic production system by means of using indicators that define environmental quality. The proposal is flexible to modification according to the specific conditions of each system, region or country.
2005
Conference paper, poster, etc.
NonPeerReviewed
source
de
/id/eprint/4339/4/Escobar_etal_4p_revised-ed.doc
Escobar, C.A.; Espinosa, A.; Malagon, R. and Zuluaga, A. (2005) Methodology for Sustainability Evaluation in Organic Farming under Colombian Conditions: a Proposal. Poster at: Researching Sustainable Systems - International Scientific Conference on Organic Agriculture, Adelaide, Australia, September 21-23, 2005. [Unpublished]
oai:orgprints.org:4364
2010-04-12T07:30:33Z
7374617475733D756E707562
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/4364/
Organic cash crop farms as net energy producers: Energy balances and environmental effects
Halberg, Niels
Dalgaard, R.
Berntsen, J.
Olesen, J.E.
Dalgaard, T.
Recycling, balancing and resource management
Organic farming (OF) principles include the idea of reducing dependence on fossil fuels, but little has been achieved on this objective so far in Danish OF. Energy use and greenhouse gas emissions from an average 39 ha cash crop farm were calculated and alternative crop rotations for bio-energy production were modelled. Growing rapeseed on 10% of the land could produce bio-diesel to replace 50-60% of the tractor diesel used on the farm. Increasing Grass-clover area to 20% of the land and using half of this yield for biogas production could change the cash crop farm to a net energy producer, reduce green house gas emissions and improve the nutrient management on the farm while reducing overall output of products only marginally.
2005
Conference paper, poster, etc.
NonPeerReviewed
source
de
/id/eprint/4364/4/halberg_etal_4p_revised-ed.doc
Halberg, Niels; Dalgaard, R.; Berntsen, J.; Olesen, J.E. and Dalgaard, T. (2005) Organic cash crop farms as net energy producers: Energy balances and environmental effects. Paper at: Researching Sustainable Systems - International Scientific Conference on Organic Agriculture, Adelaide, Australia, September 21-23, 2005. [Unpublished]
oai:orgprints.org:4389
2010-04-12T07:30:35Z
7374617475733D756E707562
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/4389/
Enhancing Sustainability by Landscape-Design and Conversion to Organic Agriculture
Kainz, Maximilian
Recycling, balancing and resource management
A hilly site with variable soils and facing all the problems of modern agriculture was re-designed and converted to organic agriculture in 1992. After 10 years of measurements and observations it was determined that soil compaction, runoff, and erosion were reduced, quality of groundwater and ponds was gradually enhanced, diversity of wildlife was enriched, and the economic situation of the farmer was improved. Besides landscape design, conversion to organic agriculture is regarded as a key instrument towards sustainable land use in this region.
2005
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
de
/id/eprint/4389/4/4389-Kainz_etal_4p_revised-ed.pdf
Kainz, Maximilian (2005) Enhancing Sustainability by Landscape-Design and Conversion to Organic Agriculture. Paper at: Researching Sustainable Systems - International Scientific Conference on Organic Agriculture, Adelaide, Australia, September 21-23, 2005. [Unpublished]
oai:orgprints.org:4411
2010-04-12T07:30:37Z
7374617475733D756E707562
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/4411/
Economic, Social, and Environmental Benefits Associated With U.S. Organic Agriculture
Lohr, Luanne
Recycling, balancing and resource management
This case study reviews the economic, social, and environmental benefits associated with organic agriculture in the United States. Measurable impacts are quantified by comparing indicators of benefits in counties with organic farms and counties without. Statistical differences across counties with and without organic farms provide preliminary evidence that organic farms may generate a variety of direct and indirect benefits. Of 36 indicators tested across a range of economic, social, and environmental benefits, 26 favor organic systems, three favor conventional systems, and seven are neutral. Even though organic farmers are not a large percentage of the total number of U.S. farmers, they may be influencing mainstream agriculture to shift toward greater sustainability.
2005
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
de
/id/eprint/4411/4/4411-Lohr_4p_revised-ed.pdf
Lohr, Luanne (2005) Economic, Social, and Environmental Benefits Associated With U.S. Organic Agriculture. Paper at: Researching Sustainable Systems - International Scientific Conference on Organic Agriculture, Adelaide, Australia, September 21-23, 2005. [Unpublished]
oai:orgprints.org:4528
2010-04-12T07:30:43Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D34706C616E74:33636F6D706F7374
7375626A656374733D656E7669726F6E6D656E74:35656D697373696F6E73
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/4528/
Auswirkungen der Fermentation biogener Rückstände in Biogasanlagen auf Flächenproduktivität und Umweltverträglichkeit im ökologischen Landbau bei viehloser Wirtschaftsweise
Stinner, Walter
Möller, Kurt
Leithold, Günter
Recycling, balancing and resource management
Composting and manuring
Air and water emissions
Problemstellung/Ziele:Analog zur Entwicklung im konventionellen Landbau ist auch
im Ökologischen Landbau eine zunehmende Tendenz zu viehloser Wirtschaftsweise
festzustellen. Viehlose Betriebe können auf die Vorteile des Kleegrasanbaues (N-Versorgung,
Unkrautbekämpfung) kaum verzichten. Üblicherweise wird der Aufwuchs
gemulcht und auf der Fläche belassen, ebenso die übrigen Rest- und Koppelprodukte
(Stroh von Getreide und Körnerleguminosen, Zwischenfruchtaufwüchse, u.ä.). Damit
können erhebliche N-Verluste verbunden sein, zum Einen als Ammoniakfreisetzungen
beim Abbau des Kleegrasmulches (u.a. ANDREN, 1987), zum Anderen durch Minderleistungen
der Stickstofffixierung gemulchter Bestände, die mineralisierten Stickstoff
aufnehmen und dabei die eigene Fixierung vermindern. Weitere Verlustquellen
sind Auswaschung und Denitrifikation beim Verbleib N-reicher Restprodukte auf dem
Feld während des Winterhalbjahres (u.a. MÖLLER, 1999; RUSER, 1999). Ein weiteres
Problem bei viehloser Bewirtschaftung ist neben der fehlenden Verwertungsmöglichkeit
für die Kleegrasaufwüchse, die fehlende Möglichkeit, innerhalb der Fruchtfolge
Nährstoffe auf die bedürftigen Kulturen „umzuverteilen“, wie dies bei viehhaltenden
Systemen in Form von Gülle, Jauche und Stallmist möglich ist. Die Vergärung der
ansonsten nicht genutzten Aufwüchse und Reststoffe einer viehlosen Fruchtfolge in
einer Biogasanlage kann nicht nur der Energieerzeugung dienen, sondern gegebenenfalls
auch der besseren N-Versorgung über die gezielte Rückführung der Gärreste.
Sie könnte auch zu einer Verminderung umweltrelevanter N-Emissionen führen, da
der Stickstoff zeitweise – insbesondere über Winter - aus den Ackerflächen entfernt
und „zwischengelagert“ wird. Außerdem können durch die Vergärung in einer Biogasanlage
betriebsfremde Nährstoffe (z.B. Grünschnitte) erschlossen werden, die bei
Einhaltung entsprechender Richtlinien bis zur Grenze von 40 kg N/ha in Ökobetrieben
eingesetzt werden dürfen.
Institut für ökologischen Landbau (iföl), Universität für Bodenkultur (Boku), Wien
Freyer, Bernhard
2003
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
de
/id/eprint/4528/1/4528-stinner-2003-biogas.pdf
Stinner, Walter; Möller, Kurt and Leithold, Günter (2003) Auswirkungen der Fermentation biogener Rückstände in Biogasanlagen auf Flächenproduktivität und Umweltverträglichkeit im ökologischen Landbau bei viehloser Wirtschaftsweise. In: Freyer, Bernhard (Ed.) Beiträge zur 7. Wissenschaftstagung zum Ökologischen Landbau "Ökologischer Landbau der Zukunft" 24.-26. Februar 2003 in Wien, Institut für ökologischen Landbau (iföl), Universität für Bodenkultur (Boku), Wien, pp. 523-524.
oai:orgprints.org:4621
2012-08-10T12:26:22Z
oai:orgprints.org:4622
2013-04-23T09:02:37Z
7374617475733D707562
7375626A656374733D35736F696C:346E75747269656E74
7375626A656374733D34706C616E74:3263726F70636F6D62
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D656E7669726F6E6D656E74:35656D697373696F6E73
74797065733D6A6F75726E616C70
https://orgprints.org/id/eprint/4622/
A model simulation analyses of nitrate leaching – does soil organic matter pool structure or catch crop growth parameters matter most?
Pedersen, Anders
Petersen, Bjørn Molt
Eriksen, Jørgen
Hansen, Søren
Jensen, Lars Stoumann
Nutrient turnover
Crop combinations and interactions
Recycling, balancing and resource management
Air and water emissions
Modelling of soil organic matter (SOM) turnover has often been developed in order to or to predict crop fertilser demand or to analyse environmental impact of different agriculture management practices. Mechanistic simulation models can be used to predict the mineralization of nitrogen (N) in added organic matter, e.g. from animal manure or incorporated crop residues, and the timing of N availability to the succeeding crops. In this way, mechanistic models may be used to avoid excessive fertilisation and hence to minimise nitrate leaching. The objective of this work was therefore to analyse the consequences of applying different SOM and crop modules (differing in pool structure or parameterisation) in the soil-plant-atmosphere model Daisy on the simulated crop production, soil nitrogen dynamics and nitrate leaching. We addressed the following questions: i) How much are Daisy simulations of crop production as well as nitrate leaching affected by applying different SOM module structures or parameterisation? ii) Are simulations of nitrogen dynamics and nitrate leaching more affected by different choice of crop modules than choice of SOM modules? We used an extensive 6-year field experiment for comparing simulated and measured data. The experiment comprised 3-y perennial ryegrass and grass-clover pastures under different management and subsequently cropped to spring cereals (including catch crop) with different manuring strategies for 3 years.
2007
Journal paper
NonPeerReviewed
application/pdf
en
/id/eprint/4622/2/4622.pdf
Pedersen, Anders; Petersen, Bjørn Molt; Eriksen, Jørgen; Hansen, Søren and Jensen, Lars Stoumann (2007) A model simulation analyses of nitrate leaching – does soil organic matter pool structure or catch crop growth parameters matter most? Ecological Modelling, 205, pp. 209-220.
oai:orgprints.org:5152
2010-04-12T07:31:16Z
7374617475733D707562
7375626A656374733D35736F696C:346E75747269656E74
7375626A656374733D34706C616E74:31706C616E7470726F64:3363657265616C73
7375626A656374733D33616E696D616C
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D34706C616E74:33636F6D706F7374
7375626A656374733D656E7669726F6E6D656E74:35656D697373696F6E73
74797065733D626F6F6B
https://orgprints.org/id/eprint/5152/
Nährstoffmanagement im ökologischen Landbau - Ein Handbuch für Beratung und Praxis mit Anwendungs-CD
Nutrient turnover
Cereals, pulses and oilseeds
Animal husbandry
Recycling, balancing and resource management
Composting and manuring
Air and water emissions
Mit Experten aus Wissenschaft und Beratung wurden Datengrundlagen sowie Rahmenempfehlungen zur Nährstoffbilanzierung im Ökologischen Landbau erarbeitet. Auch sind Handlungsempfehlungen zur Abschätzung und Optimierung der gesamtbetrieblichen Stoffflüsse zusammengestellt. Damit sollen Beratern, Landwirten und Fachleuten sowohl Orientierungshilfen für die Durchführung von Nährstoffbilanzierungen als auch für spezielle Fragen der Optimierung des Nährstoffmanagements in ökologisch bewirtschafteten Betrieben gegeben werden.
Die Schrift wird ergänzt durch eine Software für die visuelle Beurteilung von Futterleguminosen-Grasgemengen inklusive Kalkulation der N2-Fixierung sowie eine N-Saldo-Berechnung unter Berücksichtigung standortspezifischer Parameter.
KTBL
Stein-Bachinger, Dr. Karin
Bachinger, Dr. Johann
Schmitt, Dr. Liliane
2004
Book
NonPeerReviewed
application/pdf
de
/id/eprint/5152/1/S_423_006-010.pdf
Stein-Bachinger, Dr. Karin; Bachinger, Dr. Johann and Schmitt, Dr. Liliane (Eds.) (2004) Nährstoffmanagement im ökologischen Landbau - Ein Handbuch für Beratung und Praxis mit Anwendungs-CD. [Nutritionmanagement for organic farming.] KTBL-Schrift 423. KTBL.
oai:orgprints.org:5220
2010-04-12T07:31:19Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/5220/
Baltic Ecological Recycling Agriculture and Society (BERAS project) - a case of Juva milk system
Kahiluoto, H.
Bäckman, S.
Hannula, A.
Kakriainen, S.
Krumalowa, V.
Kuisma, M.
Lehto, T.
Mikkola, M.
Sumelius, J.
Seuri, P.
Vihma, A.
Granstedt, A.
Recycling, balancing and resource management
The aim of the study was to determine the potential, impact and prerequisites of localization and enhanced recycling in a rural food system, illustrated by the case of Juva milk. An interdisciplinary scenario based on the increase of local, organic milk to 50 % of milk comsumption was created and the sustainability was compared, on the basis of the statistics and data collected from the actors, with the present milk system.
Nordic Association of Agricultural Scientists
2005
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
en
/id/eprint/5220/1/5220.pdf
Kahiluoto, H.; Bäckman, S.; Hannula, A.; Kakriainen, S.; Krumalowa, V.; Kuisma, M.; Lehto, T.; Mikkola, M.; Sumelius, J.; Seuri, P.; Vihma, A. and Granstedt, A. (2005) Baltic Ecological Recycling Agriculture and Society (BERAS project) - a case of Juva milk system. In: NJF Report, Nordic Association of Agricultural Scientists, 1 (1), pp. 239-242.
oai:orgprints.org:5244
2010-04-12T07:31:20Z
7374617475733D707562
7375626A656374733D35736F696C:346E75747269656E74
7375626A656374733D326661726D696E67:6661726D2D6E75747269656E742D6D616E6167656D656E74
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D6A6F75726E616C70
https://orgprints.org/id/eprint/5244/
Concentrations of soil potassium after long-term organic dairy production
Løes, Anne-Kristin
Øgaard, Anne Falk
Nutrient turnover
Farm nutrient management
Recycling, balancing and resource management
On five long-term organic dairy farms aiming at self-sufficiency with nutrients, soil concentrations of ammonium-acetate lactate extractable potassium (K-AL) and acid-soluble K was measured twice in topsoil (0-20 cm) and subsoil (20-40 cm) over periods of 6-14 years. Organic management had occurred for >9 years at the second sampling. On average there were most probably field level K-deficits. Even so, topsoil K-AL concentrations were medium high (65-155 mg K kg–1 soil), and did not decrease during the study period. However, for three farms, topsoil K-AL was approaching a minimum level determined by soil texture, where further decrease is slow. Subsoil K-AL concentrations were generally low (<65). The soils were mostly light-textured, and reserves of K-releasing soil minerals (illite) were low, never exceeding 6% of the mineral particles <2 mm diameter. Topsoil acid-soluble K concentrations were low (<300 mg K kg–1 soil) on two farms, medium (300–800) on three farms and decreased significantly on one farm. Cation-exchange capacity increased on two farms. This may indicate increased amount of expanded clay minerals caused by K-depletion. On self-sufficient organic dairy farms, purchased nutrients will be required by low soil nutrient reserves to avoid seriously decreased yields and quality of crops.
Channel View Publications
Jules, Pretty
2003
Journal paper
NonPeerReviewed
application/pdf
en
/id/eprint/5244/1/jas_010_%28loesogaard%29.pdf
Løes, Anne-Kristin and Øgaard, Anne Falk (2003) Concentrations of soil potassium after long-term organic dairy production. International Journal of Agricultural Sustainability, 1 (1), pp. 14-29.
oai:orgprints.org:5596
2010-04-12T07:31:29Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D656E7669726F6E6D656E74:35656D697373696F6E73
74797065733D6F74686572
https://orgprints.org/id/eprint/5596/
Monitoring and management of energy and emissions in agriculture
Little, Tony
Recycling, balancing and resource management
Air and water emissions
This review collates the results of research into energy use and emissions in organic farming, and provides advisers with an analysis of the results, access to the data used and a review of the benchmarking methodologies available. The review will inform those working in the development of benchmarking tools and advising farmers on practices to improve their performance.
2007-09
Other
NonPeerReviewed
application/pdf
en
/id/eprint/5596/1/Res_review_6_little.doc
Little, Tony (2007) Monitoring and management of energy and emissions in agriculture. Institute of Organic Training and Advice, Craven Arms, Shropshire, UK .
oai:orgprints.org:5677
2009-08-20T14:27:38Z
7375626A656374733D35736F696C:31736F696C7175616C
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D70726F6A656374
https://orgprints.org/id/eprint/5677/
Waste composts in organic crop rotation - risks and possibilities for the future
Soil quality
Recycling, balancing and resource management
Organic agriculture aims at closed nutrient cycles, but currently the use of composts made of municipal waste is forbidden in Finnish organic production. The use of municipal waste composts in organic crop rotation and the risks connected with it in a long-term compost use will be studied.
The experimental plots received the previous compost applications in 2000 and the plots will be treated with the same types of waste compost in 2004 and 2005. The crop rotation from 2000 onwards is: cereal cover crop+clover-grass/clover-grass/clover-grass/cereal/potato/... and so on. Waste compost effects are compared to manure compost effects and control treatments with no fertilization applied. The waste composts are to be carefully selected with only the highest quality approved.
The indicator microbes of hygienity are determined from the composts applied on field experiment, and the viability of indicator microbes will be determined from soil samples two weeks after compost application. The nutrient and heavy metal content of composts will be analysed. Soil respiration, particulate organic matter and microbial C and N determinations will determine soil-improving effects. Nutrient cycling effects will be studied on nitrogen and phosphorus, with some enzyme activities, net N mineralization potential and soil nutrient contents determined. Plant yield and nutrient contents are also determined.
Project description
NonPeerReviewed
{Project} Waste composts in organic crop rotation - risks and possibilities for the future. [Jätekompostit luonnonmukaisessa viljelykierrossa - tulevaisuuden riskit ja mahdollisuudet.] Runs 2003 - 2004. Project Leader(s): Tontti, Tiina, MTT Agrifood Research Finland .
oai:orgprints.org:5942
2010-04-12T07:31:41Z
7374617475733D707562
7375626A656374733D37666F6F64:38706F6C696379
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/5942/
Localisation and recycling in rural food systems - impact and solutions
Kahiluoto, Helena
Granstedt, Artur
Bäckman, Stefan
Fischer, Holger
Hannula, Annamari
Kakriainen, Salla
Krumalova, Veronica
Larsson, Markus
Lehto, Tiina
Nousiainen, Marko
Pylkkänen, Päivi
Schneider, Thomas
Seppänen, Laura
Seuri, Pentti
Sumelius, John
Thomsson, Olof
Vesala, Kari
Vihma, Antto
Policy environments and social economy
Recycling, balancing and resource management
The aim of the study was to assess the impact of an increased share of local organic food based on local resources, especially on increased recycling (i.e. the impact of increased locality or localization), on sustainability of rural food systems around the Baltic Sea. Obstacles and solutions for sustainable localization and recycling were also identified. In addition to these main objectives, a methodological interest in developing interdisciplinary research processes was also incorporated. Case food systems in eight Baltic countries were studied on the basis of interviews and stakeholder workshops, as well as by analysis of environmental indicators and economic parameters at farm and food system level by a European multidisciplinary research group. According to the results, marked benefits on environment, local economy and social sustainability can be obtained through enhanced recycling and an increased share of local organic food in the rural food systems. These benefits require, however, well-informed choices for performing
localization and recycling in a sustainable manner. Recycling, especially in agriculture, but also at the food system level, ensures environmental benefits while locality relieves that and is crucial for the benefits in local economy and social sustainability. The scale of sustainable localization varies, however, according to the product and process concerned. In some cases, recycling between the farms seems to require smaller
economic compensation than recycling within the farms. To realize the potential of localization and recycling, marked obstacles have to be overcome by providing economic incentives for recycling to farmers, a local certificate and information to consumers and intensified cooperation between the local stakeholders.
International Society of Organic Agriculture Research (ISOFAR), Bonn; Research Institute of Organic Agriculture (FiBL), Frick
Köpke, Ulrich
Niggli, Urs
Neuhoff, Daniel
Cornish, Peter
Lockeretz, William
Willer, Helga
2005
Conference paper, poster, etc.
NonPeerReviewed
rtf
en
/id/eprint/5942/1/Kahiluoto.rtf
Kahiluoto, Helena; Granstedt, Artur; Bäckman, Stefan; Fischer, Holger; Hannula, Annamari; Kakriainen, Salla; Krumalova, Veronica; Larsson, Markus; Lehto, Tiina; Nousiainen, Marko; Pylkkänen, Päivi; Schneider, Thomas; Seppänen, Laura; Seuri, Pentti; Sumelius, John; Thomsson, Olof; Vesala, Kari and Vihma, Antto (2005) Localisation and recycling in rural food systems - impact and solutions. Paper at: Researching sustainable systems : first scientific conference of the International Society of Organic Agriculture Research (ISOFAR), held in cooperation with IFOAM and NASAA, Adelaide, South Australia, 21-23 September 2005.
oai:orgprints.org:6165
2010-04-12T07:31:51Z
7374617475733D707562
7375626A656374733D35736F696C:346E75747269656E74
7375626A656374733D326661726D696E67:6661726D2D6E75747269656E742D6D616E6167656D656E74
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D656E7669726F6E6D656E74:35656D697373696F6E73
74797065733D6A6F75726E616C70
https://orgprints.org/id/eprint/6165/
Catch crops have little effect on P and K availability of depleted soils
Jensen, Lars Stoumann
Pedersen, Anders
Magid, Jakob
Nielsen, Niels Erik
Nutrient turnover
Farm nutrient management
Recycling, balancing and resource management
Air and water emissions
It is a well-known fact that catch crops have a significant effect on availability and loss of soil inorganic nitrogen (Thorup-Kristensen et al., 2003) and recently marked effects on soil inorganic sulphur dynamics have also been shown (Eriksen and Thorup-Kristensen 2002; Eriksen et al., 2004).
However, we know much less about the effect of catch crops on phosphorous (P) and potassium (K) mobilisation and availability for the next crop. After several years of organic cash crop production, e.g. vegetables and cereals, yield levels may gradually be limited by soil P and K availability, depending on the initial status at conversion to organic production principles. This is particularly the case during the establishment phase of certain vegetable cultures with a limited rooting system (e.g. lettuce, leeks, onions).
Therefore, it has often been hypothesized that certain catch crops are capable of increasing the availability of P and K when the soil status becomes low.
In the VegCatch subproject 'Catch crops as a tool for increasing P bioavailability in soils' we have therefore studied the ability of different catch crop species to mobilise and take up P and K from soils of low availability, as well as the ability of the catch crops deliver P and K to the subsequent main crop.
2005-06
Journal paper
NonPeerReviewed
application/pdf
en
/id/eprint/6165/1/6165.pdf
Jensen, Lars Stoumann; Pedersen, Anders; Magid, Jakob and Nielsen, Niels Erik (2005) Catch crops have little effect on P and K availability of depleted soils. [Efterafgrøder har ringe effekt på P og K forsyningen på udpint lerjord.] DARCOFenews.
oai:orgprints.org:6166
2010-04-12T07:31:51Z
7374617475733D707562
7375626A656374733D35736F696C:346E75747269656E74
7375626A656374733D326661726D696E67:6661726D2D6E75747269656E742D6D616E6167656D656E74
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D656E7669726F6E6D656E74:35656D697373696F6E73
74797065733D6A6F75726E616C70
https://orgprints.org/id/eprint/6166/
Efterafgrøder har ringe effekt på P og K forsyningen på udpint lerjord
Jensen, Lars Stoumann
Pedersen, Anders
Magid, Jakob
Nielsen, Niels Erik
Nutrient turnover
Farm nutrient management
Recycling, balancing and resource management
Air and water emissions
Efterafgrøder påvirker jordens tilgængelighed og tab af kvælstof (N). Dette er velkendt i økologiske sædskifter. Derimod ved vi mindre om, hvordan efterafgrøderne virker på tilgængeligheden af fosfor (P) og kalium (K) og på forsyning til den næste afgrøde i sædskiftet. Afhængig af jordens næringsstof status ved omlægning, vil økologisk produktion af salgsafgrøder med tiden kunne begrænses af næringsstofmangel, hvis der ikke tilføres P eller K. Denne mangel på næringsstoffer gælder ikke mindst i afgrødernes etableringsfase og for en række grøntsagskulturer med et lille rodsystem.
Når efterafgrøder kan bruges til at 'flytte rundt' på tilgængeligt N i sædskiftet, har man ofte i det økologiske jordbrug spekuleret over om det også kunne lade sig gøre for P og K. Ikke mindst har det været overvejet om efterafgrøder kunne bruges til at imødegå P og/eller K mangel, når jordens status bliver lav.
I en del af FØJO-II projektet 'Økologiske grønsager og efterafgrøder' (VegCatch) har vi derfor studeret forskellige efterafgrøde-arters evne til at mobilisere og optage P og K fra jord med en lav tilgængelighed, samt efterafgrødernes evne til at forsyne en efterfølgende afgrøde med P og K.
2005-06
Journal paper
NonPeerReviewed
application/pdf
en
/id/eprint/6166/1/6166.pdf
Jensen, Lars Stoumann; Pedersen, Anders; Magid, Jakob and Nielsen, Niels Erik (2005) Efterafgrøder har ringe effekt på P og K forsyningen på udpint lerjord. [Catch crops have little effect on P and K availability of depleted soils.] FØJOenyt.
oai:orgprints.org:6182
2010-04-12T07:31:52Z
7374617475733D707562
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7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D7265706F727463686170746572
https://orgprints.org/id/eprint/6182/
Introduction
Seppänen, Laura
Markets and trade
Recycling, balancing and resource management
The purpose of this publication is to describe the cases around the Baltic Sea that are involved or linked to the BERAS project. In them, active people, projects and organizations have taken initiatives towards local and organic food chains and cooperation.
Seppänen, Laura
2004
Report chapter
NonPeerReviewed
application/pdf
en
/id/eprint/6182/1/ekolantbruk40.pdf
Seppänen, Laura (2004) Introduction. In: Seppänen, Laura (Ed.) Local and organic food and farming around the Baltic Sea. Ekologiskt lantbruk, no. 40. Sveriges lantbruksuniversitet , Centrum för uthålligt lantbruk, chapter I, pp. 5-9.
oai:orgprints.org:6189
2010-04-12T07:31:52Z
7374617475733D707562
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7375626A656374733D326661726D696E67
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D6A6F75726E616C70
https://orgprints.org/id/eprint/6189/
Energy Utilization in Crop and Dairy Production in Organic and Conventional Livestock Production Systems
Refsgaard, Karen
Halberg, Niels
Kristensen, Erik Steen
Environmental aspects
Farming Systems
Recycling, balancing and resource management
Searching for livestock production systems with a high energy utilization is of interest because of resource use and pollution aspects and because energy use is an indicator of the intensification of production processes. Due to interactions between crop and livestock enterprises and between levels of different input factors and their effects on yields, it is proposed to analyze agricultural energy utilization through system modelling of data from farm studies. Energy use in small grains, grass-clover and fodder beets registered in organic and conventional mixed dairy farms was analyzed and used together with crop yields in order to model energy prices on three Danish soil types. Conventional crop yields were higher but they also used more indirect energy with input factors, especially fertilizers. The conventional yields were not sufficiently higher to compensate for the extra use of energy compared with the organic crops. The organic crops had lower energy prices on all soil types, with the smallest difference on irrigated sandy soils. Sensitivity analyses were made for the effects of changes in irrigation and fertilizer levels. One conclusion was that better energy utilization in grain crops might be found at intermediate levels of fertilizer use, especially on irrigated soils. Actual farm diesel use was on average 47% higher than expected from standard values, suggesting that care should be taken when basing energetic analysis of farming methods on experimental data alone. On the same farms, the energy use in dairy production registered in organic and conventional mixed dairy farms was analyzed and used together with milk and meat yields in order to model energy prices for three different feeding strategies and two soil types. Conventional dairy production is more intensive with a greater feeding ration and a higher proportion of high-protein Seed, but has also higher yields. The conventional yields were not sufficiently higher to compensate for rite extra use of energy compared with the organic feeding ration. However, the loll er energy price in organic dairy production is dependent on the composition of the feeding strategy. Substitution of 500 SFU of grain with grass pellets makes an ordinary organic feeding ration based on conventional crop production competable. In general, the crop energy price models car? be used together with the dairy production to model the effects of different feeding and crop rotation strategies on the overall energy utilization in mixed dairy production systems.
ELSEVIER SCI LTD
1998
Journal paper
NonPeerReviewed
application/pdf
en
/id/eprint/6189/1/6189.pdf
Refsgaard, Karen; Halberg, Niels and Kristensen, Erik Steen (1998) Energy Utilization in Crop and Dairy Production in Organic and Conventional Livestock Production Systems. Agricultural Systems, 57 (4), pp. 599-630.
oai:orgprints.org:6554
2010-04-12T07:32:06Z
7374617475733D707562
7375626A656374733D33616E696D616C:31616E696D616C70726F64
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/6554/
Energiforbrug i forskellige dyrkningssystemer
Halberg, Niels
Refsgaard, Karen
Dalgaard, Tommy
Production systems
Recycling, balancing and resource management
Energiforbruget i jordbrugsproduktionen er interessant både fra et ressource synspunkt og fordi udledningen af CO2 fra forbrænding af fossil energi bidrager til drivhuseffekten. Både i målsætningerne for den danske Landsforening for økologisk jordbrug (LØJ) og i landboorganisationernes oplæg til Godt landmandsskab år 2000 indgår desuden mål om at reducere forbruget af fossil energi og få den bedst mulige energiudnyttelse. Ved en kombination af studier i økologiske og konventionelle kvægbrug og brug af standardværdier for dieselforbrug til de enkelte markoperationer er der opstillet modeller for energiforbruget i mark og stald. I energiregnskaberne indgår både det direkte (diesel + el) og det indirekte energiforbrug (f.eks. energi medgået til produktion af den anvendte gødning). Modellerne viste at dieselforbruget per ha er næsten ens i økologisk og konventionel produktion. Det ekstra dieselforbrug til ukrudtsharvning i de økologiske afgrøder opvejes stort set af dieselforbrug til udkørsel af handelsgødning og pesticider i de konventionelle afgrøder. I konventionel produktion udgjorde gødningsforbruget en stor del af energiforbruget, hvorfor energiforbruget per kg korn var henholdsvis 6, 15 og 18% lavere i økologisk produktion på vandet sandjord, lerjord og uvandet sandjord. Energiforbruget per FE græs var tilsvarende 41, 66 og 68 % lavere i økologisk produktion på de tre jordtyper. Udbytterne i økologisk produktion var 15-30% lavere, hvorfor denne produktionsform beslaglægger et større areal til produktion af en given mængde korn og mælk. Dette forhold bør tages i betragtning ved vurdering af energieffektiviteten i de to produktionssystemer, f.eks. ved at modregne den potentielle nettoenergiproduktion på det overskydende areal i konventionel produktion. Jordbrugets samlede udledning af drivhusgasser ville formentlig kunne reduceres med op til 13% regnet i CO2 ækvivalenter ved omlægning til økologisk produktion med fastholdelse af den nuværende animalske produktion.
1999
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
en
/id/eprint/6554/1/6554.pdf
Halberg, Niels; Refsgaard, Karen and Dalgaard, Tommy (1999) Energiforbrug i forskellige dyrkningssystemer. In: Nordisk Jordbrugsforskning, 81 (2), pp. 30-38.
oai:orgprints.org:7056
2010-04-12T07:32:24Z
7375626A656374733D34706C616E74:31706C616E7470726F64:3170617374757265
7375626A656374733D34706C616E74:31706C616E7470726F64:3363657265616C73
7375626A656374733D326661726D696E67
7375626A656374733D33616E696D616C:31616E696D616C70726F64:316461697279
7375626A656374733D326661726D696E67:6661726D2D6E75747269656E742D6D616E6167656D656E74
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D656E7669726F6E6D656E74:35656D697373696F6E73
74797065733D666163696C697479
https://orgprints.org/id/eprint/7056/
Farming systems comparison study, Bioforsk Arable Crops Division, Apelsvoll
Pasture and forage crops
Cereals, pulses and oilseeds
Farming Systems
Dairy cattle
Farm nutrient management
Recycling, balancing and resource management
Air and water emissions
A long-term farming systems comparison study was initiated at Bioforsk Arable Crops Division, Apelsvoll, in 1989. The aim was to compare on a model farm level differences in yields, nutrient runoff, nutrient balances and economical results for conventional, integrated and organic dairy and cash crop farming systems. The vision of the project was to develop farming systems that minimized the runoff of nutrients and pesticide residues, produced healthy crops with optimal nutritional value, and gave satisfying yields and economic results. In 2000, the system was changed so that the term “integrated” was replaced by “optimal”, defined as the treatment that achieves the maximum yield per kilo leached nitrogen. The study comprises a field lysimeter with 12 plots, each 0.18 ha. Each plot is treated as a model farm, and six different farming systems (2 replicates per system) are compared as follows:
1. A reference cash crop farm with cereals and potatoes, managed as in the reference year of 1985
2. Optimal cash crop
3. Organic cash crop with 25% land as green manure
4. Optimal cash crop with animal manure and 50% ley
5. Organic mixed crop with 50% ley
6. Organic mixed crop with 75% ley
All model farms are managed with a 4-year crop rotation, where all crops are grown in each year (all plots are divided in four sub-plots). Please contact audun.korsaeth@bioforsk.no for further information and publications from the study.
Research facility description
NonPeerReviewed
application/pdf
en
/id/eprint/7056/1/Korsaeth.pdf
{Facility} DS-FELT APELSVOLL: Farming systems comparison study, Bioforsk Arable Crops Division, Apelsvoll. Start 1989. Facility Leader(s): Korsæth, Audun and Eltun, Ragnar, Bioforsk Norwegian Institute of Agricultural and Environmental Research .
oai:orgprints.org:7132
2010-04-12T07:32:27Z
7374617475733D756E707562
7375626A656374733D37666F6F64:327365637572697479
7375626A656374733D37666F6F64
7375626A656374733D37666F6F64:356D61726B657473
7375626A656374733D37666F6F64:636861696E6D616E6167656D656E74
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D776F726B7061706572
https://orgprints.org/id/eprint/7132/
Sales higher thanks to efficient organic chains
Monteny, Ir. Arjan
Noorduyn, Ir. Leonore
Food security, food quality and human health
Food systems
Markets and trade
Produce chain management
Recycling, balancing and resource management
The challenge that the organic sector faces is clear; it needs to grow. But it needs to do so in a balanced fashion, whereby what the producer supplies exactly matches consumer demand. We have to know what the consumer wants and when, and producers have to be willing to adjust their production accordingly. Additionally, new chain structures are required that can supply products efficiently at a low cost price, and with sufficient attention to quality and food safety. These are precisely the aspects that were focused on in the 28 projects of the Dutch co-innovation programme ‘Professionalizing organic sales chains’, which ran from 2001 through 2005.
2005-09
Working paper
NonPeerReviewed
application/pdf
en
/id/eprint/7132/1/English_article_co-innovation.pdf
Monteny, Ir. Arjan and Noorduyn, Ir. Leonore (2005) Sales higher thanks to efficient organic chains. Working paper, Stichting Agro Keten Kennis . [Unpublished]
oai:orgprints.org:7279
2009-08-20T14:30:26Z
7375626A656374733D35736F696C:31736F696C7175616C:32736F696C62696F6C
7375626A656374733D656E7669726F6E6D656E74:3762696F646976657273697479
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D70726F6A656374
https://orgprints.org/id/eprint/7279/
Organiska restprodukters effekt på genetisk och metabolisk diversitet hos kväveomsättande markmikroorganismer
Soil biology
Biodiversity and ecosystem services
Recycling, balancing and resource management
I ekologiskt lantbruk accentueras betydelsen av markens mikroorganismer för åkermarkens långsiktiga produktionsförmåga. Projektets mål är att karaktärisera det mikrobiologiska tillståndet i åkermark, behandlad med kompost och rötrester från organiskt hushållsavfall, genom att relatera den genotypiska diversiteten hos några utvalda bakteriesamhällen i marken med deras aktivitet och metaboliska diversitet. Bakteriernas gener ska användas för att ge ett ”fingeravtryck” för olika jordprover samtidigt som bakteriernas aktivitet mäts. Efter gödsling med bl.a. kompost och rötrester ska vi leta efter förändringar. Två bakteriegrupper – nitrifierare och denitrifierare – har valts ut att representera bakterierna, eftersom de har två olika ekologiska nischer. En allt större areal åkermark odlas idag ekologiskt. Samtidigt ökar källsorteringen av sopor, och därmed ökar också tillgången på kompost och rötrester. Dessa produkter kan vara intressanta som gödselmedel för att komplettera t.ex. stallgödsel. På så sätt sluts också kretsloppen mellan stad och land och växtnäring och mullämnen återförs till åkermarken. Effekterna av dessa restprodukter på mikroorganismerna känner vi inte till. Negativa effekter av vissa organiska restprodukter på mikrobiell aktivitet har påvisats, men vi vet inte om diversiteten minskar, om populationerna förändras och om detta har någon betydelse för bibehållandet av bördig mark.
Project description
NonPeerReviewed
{Project} Organiska restprodukters effekt på genetisk och metabolisk diversitet hos kväveomsättande markmikroorganismer. [The effect of organic residues on the genetic and metabolic diversity of soil microorganisms in the nitrogen cycle.] Runs 2002 - 2006. Project Leader(s): Hallin, Sara, Swedish University of Agricultural Sciences, SLU .
oai:orgprints.org:7424
2010-04-12T07:32:39Z
7374617475733D707562
7375626A656374733D35736F696C:346E75747269656E74
7375626A656374733D34706C616E74:31706C616E7470726F64:3363657265616C73
7375626A656374733D33616E696D616C:31616E696D616C70726F64:316461697279
7375626A656374733D34706C616E74:37706C616E746272656564
7375626A656374733D34706C616E74:31706C616E7470726F64:35766567657461626C6573
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D746865736973
https://orgprints.org/id/eprint/7424/
Studies of the availability of soil phosphorus (P) and potassium (K) in organic farming systems, and of plant adaptations to low P- and K-availability
Løes, Anne-Kristin
Nutrient turnover
Cereals, pulses and oilseeds
Dairy cattle
Breeding, genetics and propagation
Vegetables
Recycling, balancing and resource management
In organic farming systems, the purchase of nutrients is firmly restricted as compared to conventional farming systems. This will often cause a negative nutrient budget on the field level, especially in cases with low animal density, where more nutrients are removed in yields than are applied in fertilisers. Studies on five organic dairy farms in Southern Norway, that were aiming at self-sufficiency,revealed that the concentrations of ammonium-acetate lactate (AL) soluble phosphorus (P) had decreased with time. The farms had been organically managed since 1986 or earlier. It was found that the higher the initial P-AL concentration,the greater was the decrease that occurred, calculated per year. Out of 156 topsoil samples,only 6 had low P-AL values (< 25 mg P kg-1 soil) at the second soil sampling. Nevertheless, in the long run, a supply of P will be required in organic farming systems. For potassium (K), no corresponding decrease in K-AL was found, but for this nutrient a considerable proportion of the cultivated land had low concentrations (< 65 mg K kg-1 soil) on all farms. The concentrations of acidsoluble K were also low to medium. With soil that does not have a high ability to replace K taken up by plants, a supply of K will be required in organic farming systems. Hence, the development of nutrient supplies that may fulfil the standards of organic farming is very important. Furthermore, organic farmers must strive even harder than their conventional colleagues to reduce nutrient losses caused by for example erosion or during animal manure storage and spreading.
A basic principle in organic farming is the cycling of nutrients within the farming system. With low animal density, plant material may be used as
manure (green manure or mulching). The fate of P, K and nitrogen (N) was studied when chopped plant material was used as a mulch in vegetable growing. Application of 9-10 tonnes plant dry matter (DM) ha-1 increased vegetable yields by 26% in the year of application, and grain yields were increased by 0.6 tonne ha-1 in the subsequent year. However, when the nutrient uptake in non-mulched plants was subtracted, only 15-20% of the N, P and K applied in mulch was recovered by the vegetable crops.
Much of the N was probably lost by leaching or gaseous losses, whereas most of the surplus P and K were recovered in soil. The mulch-method is suited for relatively small farms with low animal density where there is no capacity to use all the farmland for vegetables. About 2/3 of the land should be used for mulch production, and 1/3 devoted to vegetables. A systematic crop rotation must be used to avoid an uneven distribution of
nutrients within the farm.
Studies in low-P growing media have shown that plants may react to low P supply by adaptations such as increased root-shoot ratio, relatively longer and thinner roots or longer root hairs. Plants have a remarkable ability to adapt tochanges in environmental conditions, such as a variable nutrient supply. In order to assess whether such daptations might be useful for organic farming systems, this topic was studied by growing accessions of spring wheat and barley released during the period 1900-2000, in the field at both optimum and limited nutrient supply, as well as in the laboratory in low-P utrient solution, where root traits were recorded. Nutrient uptake and grain yields varied significantly, but the relations between nutrient uptake and root traits were weak. Modern accessions produced higher yields than older ones, mostly because they had a higher harvest index and were more resistant to fungal disease.In cereal breeding, root traits should be recorded and the root length is important. As no significant differences in SRL were found among barley or wheat accessions in our study, I suggest that root characterisation may be simplified by estimating root length from the root weight and an appropriate value for the specific root length (SRL, m root g-1 root DM). Measuring SRL is very tedious.
Most studies that have shown large effects in root or root hair growth, as a consequence of low P supply, have either not confirmed the obtained results under a controlled nvironment in the field, or the plants were not grown to maturity. Commonly, the P oncentration in such studies has been below a level that is relevant for practical farming. Such low levels would most probably have led to crop failure in the field. My studies indicate that root morphological adaptations to low P concentrations in soil are of theoretical interest, as they demonstrate the ability of plants to survive in contrasting environments. However, for the conditions found in agricultural soil within the Nordic countries, such adaptations probably have little significance.
Department of Soil and Water Sciences, Agricultural University of Norway, P.O.Box 5028, N-1432 Ås
2003
Thesis
NonPeerReviewed
application/pdf
en
/id/eprint/7424/1/PhD_thesis_AnneKristin_Loes_2003.pdf
application/pdf
en
/id/eprint/7424/2/Paper_1.pdf
application/pdf
en
/id/eprint/7424/3/Paper_2.pdf
application/pdf
en
/id/eprint/7424/4/Paper_3.pdf
application/pdf
en
/id/eprint/7424/5/Paper_4.pdf
application/pdf
en
/id/eprint/7424/6/Paper_5.pdf
Løes, Anne-Kristin (2003) Studies of the availability of soil phosphorus (P) and potassium (K) in organic farming systems, and of plant adaptations to low P- and K-availability. [Undersøkelser av tilgjengeligheten av P og K i jorda i økologiske dyrkingssystemer, og av planters tilpasning til lav tilgjengelighet av disse næringsstoffene.] Thesis, Agricultural University of Norway , Department of Soil and Water Sciences. Doctor Scientiarum Thesis, no. 2003: 29. Department of Soil and Water Sciences, Agricultural University of Norway, P.O.Box 5028, N-1432 Ås.
oai:orgprints.org:7871
2010-04-12T07:32:57Z
7374617475733D756E707562
7375626A656374733D35736F696C:346E75747269656E74
7375626A656374733D326661726D696E67:6661726D2D6E75747269656E742D6D616E6167656D656E74
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D656E7669726F6E6D656E74:35656D697373696F6E73
74797065733D6A6F75726E616C70
https://orgprints.org/id/eprint/7871/
Influence of catch crops on phosphorous and potassium availability in a depleted loamy soil
Jensen, Lars Stoumann
Pedersen, Anders
Magid, Jakob
Nielsen, Niels Erik
Nutrient turnover
Farm nutrient management
Recycling, balancing and resource management
Air and water emissions
Although catch crops and green manures are known to greatly influence nitrogen loss and availability for the succeeding crop, an experiment with catch crops and green manures on a long-term nutrient depletion trial showed no ability to mobilize phosphorous and potassium resources on this low fertility site. The study reported here indicated that this may be due to the limited biomass productivity of catch crops on such low fertility soils.
2006-03
Journal paper
NonPeerReviewed
application/pdf
en
/id/eprint/7871/1/7871.pdf
Jensen, Lars Stoumann; Pedersen, Anders; Magid, Jakob and Nielsen, Niels Erik (2006) Influence of catch crops on phosphorous and potassium availability in a depleted loamy soil. Soil Use and Management, (draft manuscript). [Unpublished]
oai:orgprints.org:7927
2010-04-12T07:33:00Z
7374617475733D707562
7375626A656374733D6B6E6F776C65646765
7375626A656374733D326661726D696E67:6661726D2D6E75747269656E742D6D616E6167656D656E74
7375626A656374733D34706C616E74:69727269676174696F6E
7375626A656374733D35736F696C:31736F696C7175616C
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D6A6F75726E616C70
https://orgprints.org/id/eprint/7927/
Il ruolo della fertirrigazione in agricoltura biologica.
Canali, Stefano
Knowledge management
Farm nutrient management
Irrigation and drainage
Soil quality
Recycling, balancing and resource management
La fertirrigazione può essere utilizzata nei sistemi agricoli biologici dove,in sinergia con altre strategie di gestione della fertilità del terreno, può contribuire al raggiungimento di soddisfacenti risultati tecnici ed economici.
Tuttavia, per garantire i vantaggi agronomici ed ambientali propri delle produzioni organiche, la fertirrigazione non dovrebbe essere utilizzata come unica tecnica di fertilizzazione, semplicemente sostituendo ai concimi di sintesi i fertilizzanti organici consentiti in agricoltura biologica.
2005
Journal paper
NonPeerReviewed
application/pdf
en
/id/eprint/7927/1/Fertirrigazione_AB_SC.pdf
Canali, Stefano (2005) Il ruolo della fertirrigazione in agricoltura biologica. [The ferti-irrigation role in organic farming.] www.phytomagazine.com, Speciale fertirrigazione ( 10), pp. 79-84.
oai:orgprints.org:8103
2009-08-20T14:31:50Z
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D70726F6A656374
https://orgprints.org/id/eprint/8103/
Ekologiskt kretsloppsjordbruk: metod att minimera växtnäringsförluster till Östersjön
Recycling, balancing and resource management
Syftet är att undersöka hur mycket överskottet och förlusterna av kväve och fosfor kan minska i jordbruket genom lokal och regional anpassning av växtodling och djurhållning i enlighet med principerna för kretsloppsbaserad ekologisk odling. Studien genomförs på utvalda ekologiska typgårdar med till den egna foderproduktionen anpassad djurhållning i för landet representativa avvattningsområden. Resultaten från balansräkningar och mätning av växtnäringsförluster ligger till grund för jämförelser med dagens jordbruk och förslag till sådana förändringar av jordbrukets struktur som kan leda till minst en halvering av förlusterna. Projektet ingår som en del i det av EU delfinansierade BSR INTERREG III B-projektet ”Baltic Ecological Recycling Agriculture” (BERAS) koordinerat av sökanden. I BERAS-projektet ingår totalt 20 partner från de åtta EU-länder runt Östersjön och som bidrar till den alltför stora kväve- och fosforbelastningen på havet.
Project description
NonPeerReviewed
{Project} BERAS: Ekologiskt kretsloppsjordbruk: metod att minimera växtnäringsförluster till Östersjön. [Baltic Ecological Recycling Agriculture and Society (BERAS).] Runs 2003 - 2006. Project Leader(s): Granstedt, Artur, Biodynamic Research Institute .
oai:orgprints.org:8178
2015-02-17T09:40:57Z
7374617475733D707562
7375626A656374733D37666F6F64:38706F6C696379
7375626A656374733D656E7669726F6E6D656E74:396C616E647363617065
7375626A656374733D656E7669726F6E6D656E74:3762696F646976657273697479
7375626A656374733D326661726D696E67:34736F6369616C
7375626A656374733D37666F6F64:636861696E6D616E6167656D656E74
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/8178/
Strengthening the positive links between organic farming and a sustainable development of rural areas
Knickel, Karlheinz
Münchhausen, von, Susanne
Peter, Sarah
Policy environments and social economy
Landscape and recreation
Biodiversity and ecosystem services
Social aspects
Produce chain management
Recycling, balancing and resource management
Organic farming can play a major role in the sustainable development of rural areas. Our assumption is that it supports the finding of a new balance between societal demands for high environmental quality, the pressures resulting from competition in a world market economy and a wide array of rural development goals and initiatives. The German 'Regional Action - Rural Areas Shaping the Future' pilot programme has been implemented in order to gain best-practice models for securing the economic, ecological and social viability of rural areas and for trial-testing a new integrated, bottom-up approach. In this contribution we present the results of an analysis of the project databank of the Regional Action pilot programme. It is concluded that the projects that are being implemented aim at a reconstitution of nature-society relations, indicating that agriculture and the potential of rural areas are no longer being evaluated in mono-functional terms.
2006
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
de
/id/eprint/8178/1/Knickel_2p.pdf
Knickel, Karlheinz; Münchhausen, von, Susanne and Peter, Sarah (2006) Strengthening the positive links between organic farming and a sustainable development of rural areas. Paper at: Joint Organic Congress, Odense, Denmark, May 30-31, 2006.
oai:orgprints.org:8184
2010-04-12T07:33:13Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D34706C616E74:33636F6D706F7374
74797065733D626F6F6B63686170746572
https://orgprints.org/id/eprint/8184/
Evaluation of organic matter stability during the composting process of agroindustrial wastes.
Tittarelli, Fabio
Trinchera, Alessandra
Intrigliolo, Francesco
Benedetti, Anna
Recycling, balancing and resource management
Composting and manuring
Composting of wastes from citrus industrial processing (pastazzo and sludge) was studied in order to evaluate the evolution of organic matter during the process and to individuate chemical and/or biochemical techniques able to set the stability of the final product. Composts from two open-air piles of different composition were sampled every month during the whole period of composting (5 months) and the organic matter of each sample was characterised by chemical and biochemical techniques. Humification rate (HR%) and humification index (HI) were determined. Extracted organic matter of six samples collected for each compost was investigated by isoelectric-focusing technique (IEF). The biochemical analysis was based on the study of C-mineralisation after the addition of each collected sample to soil. Results obtained clearly demonstrated organic matter evolution during composting processes. Humification rates increased and humification indexes decreased over time, while extracted organic matter showed electrophoretic behaviour typical of stabilised organic compounds. Moreover, mineralisation patterns confirmed the increased level of organic matter stability during the composting process.
Springer-Verlag Berlin Heidelberg
Insam, H.
Riddech, N.
Klammer, S.
2002
Book chapter
NonPeerReviewed
application/pdf
en
/id/eprint/8184/1/Tittarelli_final_version.pdf
Tittarelli, Fabio; Trinchera, Alessandra; Intrigliolo, Francesco and Benedetti, Anna (2002) Evaluation of organic matter stability during the composting process of agroindustrial wastes. In: Insam, H.; Riddech, N. and Klammer, S. (Eds.) Microbiology of composting. Springer-Verlag Berlin Heidelberg, pp. 397-406.
oai:orgprints.org:8198
2010-04-12T07:33:13Z
7374617475733D707562
7375626A656374733D37666F6F64:636861696E6D616E6167656D656E74
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/8198/
How to fear farming system sustainability ?
Application to organic cattle meat production
Stassart, Dr. Pierre
Stilmant, Dr. Didier
Jamar, Ir. Daniel
Produce chain management
Recycling, balancing and resource management
Following different crises, involving agricultural systems, either in terms of environmental pressure or of food quality and safety, an increasing need for farming system sustainability evaluation has been highlighted. How, from the research point of view, to evaluate such sustainability ? What is the methodology to mobilise ?
First approaches have developed sustainability indicators to quantify the fluxes existing between the farming systems and their economical, environmental or social surroundings. However, these indicators are difficult to aggregate: each farming system is unique, so it is difficult to define reference values to reach, whatever the farm type. Such indicators are of value when they allow farmers to become aware of the impact of their practices and of the improvement that could be expected following their modification
An alternative, to articulate system externalities with farmer practices and schemes, is to shift from eco-centred research posture, wanting to model systems diversity and complexity, to holistic approach with the mobilisation of ‘research-intervention’ methodology. In such posture, the researcher implies himself in the collective action. However the key issue is the reflexivity between these research approaches : research intervention allows to identify possible solutions to be validated in eco- or techno-centred approaches. Once validated these solutions, shared with the actors, are easily accepted
2006
Conference paper, poster, etc.
NonPeerReviewed
rtf
en
/id/eprint/8198/1/Stilmant_ed-ms_-_format-150406.rtf
Stassart, Dr. Pierre; Stilmant, Dr. Didier and Jamar, Ir. Daniel (2006) How to fear farming system sustainability ? Application to organic cattle meat production. Paper at: Joint Organic Congress, Odense, Denmark, May 30-31, 2006.
oai:orgprints.org:8351
2010-04-12T07:33:20Z
7374617475733D707562
7375626A656374733D326661726D696E67:376275696C64696E6773
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D776562
https://orgprints.org/id/eprint/8351/
Biogaserzeugung im ökologischen Landbau
Kuratorium für Technik und Bauwesen in der Landwirtschaft, (KTBL)
Buildings and machinery
Recycling, balancing and resource management
Die Vorträge zum Fachgespräch "Biogaserzeugung im ökologischen Landbau", 5.-6. April 2006 in Braunschweig, sind einsehbar:
* Regeln zur Biogaserzeugung im ökologischen Landbau
* Erfahrungen und offene Fragen aus der Praxis
* Gasausbeute von Substraten, die im ökologischen Landbau üblich sind
* Fruchtfolge von Energiepflanzen im ökologischen Landbau
* Stand der Technik bei der Festmistvergärung und der Trockenfermentation
* Wirtschaftlichkeit der Biogaserzeugung im ökologischen Landbau
2006-04
Web product
NonPeerReviewed
text/html
de
/id/eprint/8351/1/%C3%96kolandbau-Biogas.htm
Kuratorium für Technik und Bauwesen in der Landwirtschaft, (KTBL) (2006) Biogaserzeugung im ökologischen Landbau. . Online at http://www.ktbl.de/oekolandbau/index.htm <http://www.ktbl.de/oekolandbau/index.htm>.
oai:orgprints.org:8773
2010-04-12T07:33:45Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D7265706F727463686170746572
https://orgprints.org/id/eprint/8773/
Abstract
Kahiluoto, Helena
Recycling, balancing and resource management
This report presents the interdisciplinary synthesis of the multidisciplinary BERAS study: The research questions for the interdisciplinary work were as follows: Do localisation and recycling in rural food systems enhance sustainability, and what are the prerequisites for this?
Kahiluoto, Helena
Berg, Per G.
Granstedt, Artur
Fischer, Holger
Thomsson, Olof
2006
Report chapter
NonPeerReviewed
application/pdf
en
/id/eprint/8773/1/BERAS_slutrapport.pdf
Kahiluoto, Helena (2006) Abstract. In: Kahiluoto, Helena; Berg, Per G.; Granstedt, Artur; Fischer, Holger and Thomsson, Olof (Eds.) The power of local - sustainable food systems around the Baltic sea : interdisciplinary synthesis of the BERAS project. Baltic Ecological Recycling Agriculture and Society (BERAS), no. 7. Swedish University of Agricultural Sciences , Centre for Sustainable Agriculture, p. 9.
oai:orgprints.org:8774
2010-04-12T07:33:45Z
7374617475733D707562
7375626A656374733D37666F6F64:356D61726B657473
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D7265706F727463686170746572
https://orgprints.org/id/eprint/8774/
Introduction
Kahiluoto, Helena
Markets and trade
Recycling, balancing and resource management
The introductory chapter describes the challenge and notes the complex of rural problem, associated with food systems, with focus on those in countries bordering the Baltic Sea. It concludes with the general hypothesis that food systems that are more local and recycling would be more sustainable than current ones.
Kahiluoto, Helena
Berg, Per G.
Granstedt, Artur
Fischer, Holger
Thomsson, Olof
2006
Report chapter
NonPeerReviewed
application/pdf
en
/id/eprint/8774/1/BERAS2.pdf
Kahiluoto, Helena (2006) Introduction. In: Kahiluoto, Helena; Berg, Per G.; Granstedt, Artur; Fischer, Holger and Thomsson, Olof (Eds.) The power of local - sustainable food systems around the Baltic sea : interdisciplinary synthesis of the BERAS project. Baltic Ecological Recycling Agriculture and Society (BERAS), no. 7. Swedish University of Agricultural Sciences , Centre for Sustainable Agriculture, pp. 10-13.
oai:orgprints.org:8775
2010-04-12T07:33:45Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D7265706F727463686170746572
https://orgprints.org/id/eprint/8775/
Conceptual framework
Kahiluoto, Helena
Recycling, balancing and resource management
This chapter introduces the concepts of the interdisciplinary work of the BERAS study - food system, sustainability, localisation, recycling, interdisciplinarity and case study approach - and shows how they relate to one another.
Kahiluoto, Helena
Berg, Per G.
Granstedt, Artur
Fischer, Holger
Thomsson, Olof
2006
Report chapter
NonPeerReviewed
application/pdf
en
/id/eprint/8775/1/BERAS3.pdf
Kahiluoto, Helena (2006) Conceptual framework. In: Kahiluoto, Helena; Berg, Per G.; Granstedt, Artur; Fischer, Holger and Thomsson, Olof (Eds.) The power of local - sustainable food systems around the Baltic sea : interdisciplinary synthesis of the BERAS project. Baltic Ecological Recycling Agriculture and Society (BERAS), no. 7. Swedish University of Agricultural Sciences , Centre for Sustainable Agriculture, pp. 14-22.
oai:orgprints.org:8776
2010-04-12T07:33:45Z
7374617475733D707562
7375626A656374733D37666F6F64:356D61726B657473
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D7265706F727463686170746572
https://orgprints.org/id/eprint/8776/
Material and methods
Kahiluoto, Helena
Kakriainen, Salla
Granstedt, Artur
Sumelius, John
Markets and trade
Recycling, balancing and resource management
This chapter introduces the cases and the disciplinary approaches and methods. The BERAS study had a case study approach, and this report presents the interdisciplinary synthesis of the multidisciplinary study. Ultimately, the BERAS study attempted to clarify the potential impacts of enhanced localisation and recycling rather than to compare the average status of the present local, organic food systems and organic farms with the dominant food systems and agriculture.
Kahiluoto, Helena
Berg, Per G.
Granstedt, Artur
Fischer, Holger
Thomsson, Olof
2006
Report chapter
NonPeerReviewed
application/pdf
en
/id/eprint/8776/1/BERAS4.pdf
Kahiluoto, Helena; Kakriainen, Salla; Granstedt, Artur and Sumelius, John (2006) Material and methods. In: Kahiluoto, Helena; Berg, Per G.; Granstedt, Artur; Fischer, Holger and Thomsson, Olof (Eds.) The power of local - sustainable food systems around the Baltic sea : interdisciplinary synthesis of the BERAS project. Baltic Ecological Recycling Agriculture and Society (BERAS), no. 7. Swedish University of Agricultural Sciences , Centre for Sustainable Agriculture, pp. 23-31.
oai:orgprints.org:8777
2010-04-12T07:33:45Z
7374617475733D707562
7375626A656374733D37666F6F64:356D61726B657473
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D7265706F727463686170746572
https://orgprints.org/id/eprint/8777/
Results and discussion
Kahiluoto, Helena
Vesala, Kari
Markets and trade
Recycling, balancing and resource management
In this chapter, the interdisciplinary synthesis of the results of the BERAS project is presented and discussed. First, the effects of localisation and enhanced recycling on the ecological, economic and social dimensions of sustainability based on the case studies are reported, the cases where food systems and farms studied in their present state. Thereafter, the positive additional effects on sustainability obtainable by further promotion of localisation and recycling in the cases are suggested. The impact of total conversion to recycling organic agriculture is then considered. Obstacles to and solutions for localisation and recycling are identified. An finally, on the basis of these, conclusions about the sustainable way to localise and recycle are presented.
Kahiluoto, Helena
Berg, Per G.
Granstedt, Artur
Fischer, Holger
Thomsson, Olof
2006
Report chapter
NonPeerReviewed
application/pdf
en
/id/eprint/8777/1/BERAS5.pdf
Kahiluoto, Helena and Vesala, Kari (2006) Results and discussion. In: Kahiluoto, Helena; Berg, Per G.; Granstedt, Artur; Fischer, Holger and Thomsson, Olof (Eds.) The power of local - sustainable food systems around the Baltic sea : interdisciplinary synthesis of the BERAS project. Baltic Ecological Recycling Agriculture and Society (BERAS), no. 7. Swedish University of Agricultural Sciences , Centre for Sustainable Agriculture, pp. 32-51.
oai:orgprints.org:8778
2010-04-12T07:33:45Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D7265706F727463686170746572
https://orgprints.org/id/eprint/8778/
Conclusions
Kahiluoto, Helena
Vesala, Kari
Recycling, balancing and resource management
There is good potential for sustainable localisation and recycling in rural food systems around the Baltic Sea. Localisation and recycling enhance sustainability in its ecological, economic and social dimensions. A sustainable way of localisation and recycling would be local recycling between farms and from the demand chain.
Kahiluoto, Helena
Berg, Per G.
Granstedt, Artur
Fischer, Holger
Thomsson, Olof
2006
Report chapter
NonPeerReviewed
application/pdf
en
/id/eprint/8778/1/BERAS6.pdf
Kahiluoto, Helena and Vesala, Kari (2006) Conclusions. In: Kahiluoto, Helena; Berg, Per G.; Granstedt, Artur; Fischer, Holger and Thomsson, Olof (Eds.) The power of local - sustainable food systems around the Baltic sea : interdisciplinary synthesis of the BERAS project. Baltic Ecological Recycling Agriculture and Society (BERAS), no. 7. Swedish University of Agricultural Sciences , Centre for Sustainable Agriculture, pp. 52-53.
oai:orgprints.org:8994
2010-04-12T07:33:55Z
7375626A656374733D37666F6F64:327365637572697479
7375626A656374733D37666F6F64:356D61726B657473
7375626A656374733D37666F6F64:3470726F63657373696E67
7375626A656374733D34706C616E74
7375626A656374733D33616E696D616C
7375626A656374733D37666F6F64:636861696E6D616E6167656D656E74
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D726573656172636870726F6772616D6D65
https://orgprints.org/id/eprint/8994/
Matprogrammet: Norsk mat fra sjø og land
Food security, food quality and human health
Markets and trade
Processing, packaging and transportation
Crop husbandry
Animal husbandry
Produce chain management
Recycling, balancing and resource management
Konkurransedyktige og innovative næringer som leverer norsk mat for framtida er visjonen
for Matprogrammet - Norsk mat fra sjø og land. Norges forskningsråd (NFR) er ansvarlig for programmet. Kontaktperson: Johs. Kjosbakken, Telefon: +47 22 03 71 14, E-post: jkj@forskningsradet.no.
Programmet har ansvar for nærings- og forvaltningsrettet forskning i hele verdikjeden fra forbruker til primærproduksjon for landbruksbasert matproduksjon og sjømat.
Viktige tema:
• Markedsforskning
• Innovative og markedstilpassede produkter og entreprenørskap
• Produksjons-/prosessteknologi og logistikk
• Konkurransedyktig råvareproduksjon
• Helse- og livskvalitet knyttet til mat
• Innovasjon i offentlig sektor/matforvaltningen
Mål:
• Styrke innovasjon for økt konkurransedyktighet, verdiskaping og markedsorientering for
norsk matproduksjon
• Utvikle norsk matproduksjon slik at helse, kvalitet, etiske verdier, bærekraft og miljø blir godt
ivaretatt
• Bidra til at matforvaltningen har forskningsbasert og oppdatert kunnskap som grunnlag for sin
forvaltning og for utforming av nasjonalt og internasjonalt regelverk
• Bidra til styrking, arbeidsdeling og spissing slik at FoU-miljøene i sum har kompetanse på
internasjonalt nivå innenfor områder av stor betydning for utvikling av næringsliv og
forvaltning i Norge
• Utnytte mulighet for god synergi mellom de marine og de landbruksbaserte næringene
Viktige virkemidler:
Kompetanseprosjekter med brukermedvirkning, forskerprosjekter, brukerstyrte innovasjonsprosjekter.
Årlig budsjett ca 130 millioner kroner. Programmet samarbeider med andre program som administreres av NFR, og med Fondet for forskningsavgift på landbruksprodukter og Forskningsmidler over jordbruksavtalen.
Matprogrammet vil finansiere en betydelig del av forskningsaktiviteten innen økologisk mat og landbruk i Norge i perioden 2006-2011.
Research Programme description
NonPeerReviewed
application/pdf
en
/id/eprint/8994/1/the_food_programme%2C_RCN.pdf
{Programme} MATNORGE: Matprogrammet: Norsk mat fra sjø og land. [The Food Programme: Norwegian Food from Sea and Land.] Runs 2006 - 2011. Programme Leader(s): Kjosbakken, Johs.
oai:orgprints.org:9233
2012-07-18T09:44:00Z
oai:orgprints.org:9235
2010-04-12T07:34:07Z
7374617475733D707562
7375626A656374733D656E7669726F6E6D656E74
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D6A6F75726E616C70
https://orgprints.org/id/eprint/9235/
Life cycle modelling of environmental impacts of application of processed organic municipal solid waste on agricultural land (EASEWASTE)
Hansen, Trine L.
Bhander, Gurbakhash S.
Christensen, Thomas H.
Bruun, Sander
Jensen, Lars S.
Environmental aspects
Recycling, balancing and resource management
A model capable of quantifying the potential environmental impacts of agricultural application of composted or anaerobically digested source-separated organic municipal solid waste (MSW) is presented. In addition to the direct impacts, the model accounts for savings by avoiding the production and use of commercial fertilizers. The model is part of a larger model, Environmental Assessment of Solid Waste Systems and Technology (EASEWASTE), developed as a decisionsupport model, focusing on assessment of alternative waste management options. The environmental impacts of the land application of processed organic waste are quantified by emission coefficients referring to the composition of the processed waste and related to specific crop rotation as well as soil type. The model contains several default parameters based on literature data, field experiments and modelling by the agro-ecosystem model, Daisy. All data can be modified by the user allowing application of the model to other situations. A case study including four scenarios was performed to illustrate the use of the model. One tonne of nitrogen in composted and anaerobically digested MSW was applied as fertilizer to loamy and sandy soil at a plant farm in western Denmark. Application of the processed organic waste mainly affected the environmental impact categories global warming (0.4–0.7 PE), acidification (–0.06 (saving)–1.6 PE), nutrient enrichment (–1.0 (saving)–3.1 PE), and toxicity. The main contributors to these categories were nitrous oxide formation (global warming), ammonia volatilization (acidification and nutrient enrichment), nitrate losses (nutrient enrichment and groundwater contamination), and heavy metal input to soil (toxicity potentials). The local agricultural conditions as well as the composition of the processed MSW showed large influence on the environmental impacts. A range of benefits, mainly related to improved soil quality from long-term application of the processed organic waste, could not be generally quantified with respect to the chosen life cycle assessment impact categories and were therefore not included in the model. These effects should be considered in conjunction with the results of the life cycle assessment.
2006
Journal paper
NonPeerReviewed
application/pdf
en
/id/eprint/9235/1/9235.pdf
Hansen, Trine L.; Bhander, Gurbakhash S.; Christensen, Thomas H.; Bruun, Sander and Jensen, Lars S. (2006) Life cycle modelling of environmental impacts of application of processed organic municipal solid waste on agricultural land (EASEWASTE). Waste Management and Research, 24, pp. 153-166.
oai:orgprints.org:9306
2010-04-12T07:34:10Z
7374617475733D707562
7375626A656374733D37666F6F64:327365637572697479
7375626A656374733D326661726D696E67:6661726D2D6E75747269656E742D6D616E6167656D656E74
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D6A6F75726E616C70
https://orgprints.org/id/eprint/9306/
Yields and accumulations of N and P in farmer-managed intercrops of maize-pigeonpea in semi-arid Africa
Myaka, F. M.
Sakala, W. D.
Adu-Gyamfi, J. J.
Kamalongo, D.
Ngwira, A.
Odgaard, R.
Nielsen, N. E.
Høgh-Jensen, H.
Food security, food quality and human health
Farm nutrient management
Recycling, balancing and resource management
Maize (Zea mays L.) is a major staple food in Sub-Saharan Africa but low soil fertility, limited resources and droughts keep yields low. Cultivation of maize intercropped with pigeonpea (Cajanus cajan L. Millsp.) is common in some areas of eastern and southern Africa. The objectives of this study were (1) to investigate dry matter, nitrogen (N) and phosphorus (P) accumulation in different plant components of maize-pigeonpea intercropping systems and (2) to report the effects of the intercrops on soil fertility. Maize-pigeonpea intercrops were compared to sole maize grown using farmers’ practices. Intercropping maize and pigeonpea increased (P<0.05) total system yield compared to sole maize in terms of biomass, N and P accumulation. Pigeonpea planted in maize did not reduce (P<0.05) the accumulation of dry matter, N nor P in the maize grain. The harvest indices of maize, calculated on basis dry matter, N or P did not differ either (P<0.05). Total soil C and N contents and inorganic N content, nitrate and ammonium, were not affected by two seasons of maize-pigeonpea intercropping compared to sole maize (P>0.11). Nitrate and ammonium levels in soil were still not affected by the treatments after the soils were incubated in anaerobic conditions for 8 days at 37ºC (P>0.11). However, pigeonpea added up to 60 kg of N ha-1 to the system and accumulated up to 6 kg of P ha-1 and only 25% of this N and P were exported in the grain. In conclusion, beside the added grain yield of pigeonpea in the intercropped systems, pigeonpea increased the recirculation of dry matter, N and P which may have a long-term effect on soil fertility. Furthermore, the stems from pigeonpea contributed to household fuel wood consumption. The intercropped system thus had multiple benefits that gave significant increase in combined yield per unit area without additional labour requirements. The main requirement in order to up-scale the maize-pigeonpea intercropping approach is sufficient supply of high-quality pigeonpea seeds.
Springer
2006
Journal paper
NonPeerReviewed
application/pdf
en
/id/eprint/9306/1/9306.pdf
Myaka, F. M.; Sakala, W. D.; Adu-Gyamfi, J. J.; Kamalongo, D.; Ngwira, A.; Odgaard, R.; Nielsen, N. E. and Høgh-Jensen, H. (2006) Yields and accumulations of N and P in farmer-managed intercrops of maize-pigeonpea in semi-arid Africa. Plant and Soil, 285, pp. 207-220.
oai:orgprints.org:9429
2010-04-12T07:34:15Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D34706C616E74:33636F6D706F7374
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/9429/
Ökologische Sanitärlösungen in Afrika: Beitrag zu nachhaltiger Abfallentsor-gung und erhöhter Bodenfruchtbarkeit
Germer, Jörn
Grenz, Jan
Sauerborn, Joachim
Recycling, balancing and resource management
Composting and manuring
While plant nutrient deficiencies are a major constraint to increasing crop yields in many rural parts of Sub-Saharan Africa, excess nutrients in organic wastes and wastewater cause environmental and hygienic problems in urban areas. We report on an ongoing research aimed at implementing principles of ecological sanitation on a university campus near Accra, Ghana. Alternative sanitation including dry urinals and separating toilets was installed in buildings. Pure urine, urine-water mix, greywater from baths and kitchens and faeces are treated and stored separately. Except for faeces, all materials are used to fertilise annual (urine) and perennial (urine-water, greywater) crops. Urine application significantly boosted maize and sorghum growth. Pathogens present in all fresh sanitary products, e.g. Escherichia coli, could be largely deactivated by six weeks of storage. A survey revealed no fundamental objections of farmers against the use of sanitary products. Scenario calculations suggest that recycling organic wastes and urine may contribute to alleviating nutrient deficiencies, particularly with regard to P and in densely settled areas. Future research should aim at developing hygienically safe, resource-efficient ways of urine application.
2007
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
de
/id/eprint/9429/1/9429_Germer_Vortrag.pdf
Germer, Jörn; Grenz, Jan and Sauerborn, Joachim (2007) Ökologische Sanitärlösungen in Afrika: Beitrag zu nachhaltiger Abfallentsor-gung und erhöhter Bodenfruchtbarkeit. [Ecological sanitation in Africa: Contribution to sustainable waste disposal and improved nutrient management.] Paper at: Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, u, 20.-23.03.2007.
oai:orgprints.org:9462
2010-04-12T07:34:17Z
7374617475733D707562
7375626A656374733D656E7669726F6E6D656E74
7375626A656374733D6B6E6F776C65646765:397265736561726368:346D6574686F6473
7375626A656374733D34706C616E74
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D3676616C756573:336173736573736D656E74
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/9462/
The role of engineering in organic farming – case energy crops
Schäfer, Winfried
Environmental aspects
Specific methods
Crop husbandry
Recycling, balancing and resource management
Assessment of impacts and risks
Energy self-reliance and a closed nutrient cycle are basic principles of organic farming ever since. Engineering sciences methods in energy accounting may support efforts to introduce these principles into praxis. A method to calculate efficiency of energy crop production including sun energy, direct and indirect energy for cultivation, processing, and conversion into fuel is demonstrated using rape and derived fuels as an example. Every production and conversion step is a process and calculated separately. The overall efficiency includes energy input and output of all processes. The process effi-ciency of rape cultivation reaches in Finland up to 1100%. However, the overall en-ergy efficiency of rape methyl ester (RME) is 1 to 2 ‰ only. The production of biogas from manure of dairy fed by rape meal results in a process energy efficiency of 33 to 41%, but the overall energy efficiency of RME and biogas together is only 1.2 to 2.5 ‰. In contrast, thermal or photovoltaic solar collectors improve overall efficiency 1 to 3 orders of magnitude compared to fuel production from rape, because the process efficiency of photosynthesis attains about 0.6% whereas solar collector’s efficiency reaches about 90%. However, for the time being solar energy based techniques are more expensive than the use of fossil energy sources since environmental benefits in terms of GHG mitigation, reduction of nutrient run off and use of renewable energy do not create cash income in both organic and main stream production. This and the low photosynthesis efficiency in Finland encourage bio-refinery enterprises to purchase energy crop produce for fuel production from the tropics. Mineral fertilisers as well as genetic modification increase the technical efficiency of photosynthesis. Thus, envi-ronmental pollution of mainstream agriculture is exported to developing countries in the tropics.
2007
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
en
/id/eprint/9462/1/9462_Sch%C3%A4fer_Vortrag.pdf
Schäfer, Winfried (2007) The role of engineering in organic farming – case energy crops. [The role of engineering in organic farming – case energy crops.] Paper at: Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Stuttgart, Deutschland, 20.-23.03.2007.
oai:orgprints.org:10130
2010-04-12T07:34:45Z
7374617475733D707562
7375626A656374733D35736F696C
7375626A656374733D326661726D696E67:6661726D2D6E75747269656E742D6D616E6167656D656E74
7375626A656374733D656E7669726F6E6D656E74:3762696F646976657273697479
7375626A656374733D33616E696D616C
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D34706C616E74:3474696C6C616765
7375626A656374733D34706C616E74:33636F6D706F7374
74797065733D6A6F75726E616C70
https://orgprints.org/id/eprint/10130/
Humussphäre - Projekt zu energiesparenden und humusaufbauenden Methoden in der Landwirtschaft
Strüber, Klaus
Soil
Farm nutrient management
Biodiversity and ecosystem services
Animal husbandry
Recycling, balancing and resource management
Soil tillage
Composting and manuring
In einem 10-jährigen Versuch soll ein 24 ha großer landwirtschaftlicher Betrieb in Norddeutschland wieder auf Pferdekraft umgestellt werden. Dazu werden bewusst Maßnahmen zur Steigerung der Bodenfruchtbarkeit durchgeführt, um den Zugkraftbedarf für Bodenbearbeitung zu senken und damit Pferdearbeit wieder möglich zu machen.
Den Beginn machen 4 Projektsäulen: Ein Rechts/Links-Versuch in Zusammenarbeit mit Prof. Dr. R. Horn von der Universität Kiel zu Veränderungen im Boden unter Benutzung von Pferd/Schlepper; Ausbringung der bio.-dyn. Spritzpräparate mit dem Pferd; ein Kalkversuch mit homöopathischen Substanzen und die Entwicklung eines Vollernteverfahrens für Pferde.
Unter klaus.strueber@web.de kann der Gesamtbericht angefordert werden.
Starke-Pferde-Verlag, Lemgo
Schroll, Erhard
2006-04
Journal paper
NonPeerReviewed
application/pdf
de
/id/eprint/10130/1/SP_38.pdf
Strüber, Klaus (2006) Humussphäre - Projekt zu energiesparenden und humusaufbauenden Methoden in der Landwirtschaft. [Humussphäre- a projekt about energy-saving and build-on humus methods in agriculture.] Starke Pferde, 38 (02/2006), pp. 34-35.
oai:orgprints.org:10157
2010-04-12T07:34:47Z
7374617475733D707562
7375626A656374733D3676616C756573:696E707574732D6576616C756174696F6E
7375626A656374733D326661726D696E67:6661726D2D6E75747269656E742D6D616E6167656D656E74
7375626A656374733D656E7669726F6E6D656E74:3762696F646976657273697479
7375626A656374733D34706C616E74
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D656E7669726F6E6D656E74:35656D697373696F6E73
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/10157/
Life cycle assessment of Swiss organic farming systems
Nemecek, T
Dubois, D
Huguenin-Elie, O
Gaillard, G
Evaluation of inputs
Farm nutrient management
Biodiversity and ecosystem services
Crop husbandry
Recycling, balancing and resource management
Air and water emissions
The impacts of organic and integrated farming systems in Switzerland on the environment have been assessed in a comprehensive study by the life cycle assessment method. This paper reports a comparison of the treatments of the DOC experiment. Organic farming showed clear ecological advantages particularly for eco- and human toxicity, resource use and biodiversity. These ecological advantages only partly apply to nutrient losses and are not always found for single products. Per kg of organic product, higher impacts were often found for global warming potential, ozone formation, eutrophication and acidification compared to integrated production. In the same crop rotation with the same amount of organic fertilisers there were no systematic differences in soil quality of organic compared with integrated production. Further improvement of the environmental performance of organic farming should focus on achieving higher yields of good quality – especially in potatoes and cereals - by using inputs more efficiently and minimising nitrogen losses.
Association of Applied Biologists
Atkinson, C
Ball, B
Davies, D H K
Rees, R
Russell, G
Stockdale, E A
Watson, C A
Walker, R
Younie, D
2006
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
en
/id/eprint/10157/1/Life_cycle_assessment_of_Swiss_organic_farming_systems.pdf
Nemecek, T; Dubois, D; Huguenin-Elie, O and Gaillard, G (2006) Life cycle assessment of Swiss organic farming systems. In: Atkinson, C; Ball, B; Davies, D H K; Rees, R; Russell, G; Stockdale, E A; Watson, C A; Walker, R and Younie, D (Eds.) Aspects of Applied Biology 79, What will organic farming deliver? COR 2006, Association of Applied Biologists, pp. 15-18.
oai:orgprints.org:10160
2010-04-12T07:34:47Z
7374617475733D707562
7375626A656374733D326661726D696E67:6661726D2D6E75747269656E742D6D616E6167656D656E74
7375626A656374733D656E7669726F6E6D656E74:3762696F646976657273697479
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D656E7669726F6E6D656E74:35656D697373696F6E73
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/10160/
Energy and environmental burdens of organic and non-organic agriculture and horticulture
Williams, A G
Audsley, E
Sandars, D L
Farm nutrient management
Biodiversity and ecosystem services
Recycling, balancing and resource management
Air and water emissions
Production of 10 major commodities in England and Wales was studied using Life Cycle Analysis (LCA). Organic and non-organic (contemporary conventional) systems were compared. Organic production was generally less energy consuming, except for poultry meat, eggs and tomatoes. Environmental burdens, such as global warming potential or eutrophication were often greater per unit of production from organic than non-organic systems.
Association of Applied Biologists
Atkinson, C
Ball, B
Davies, D H K
Rees, R
Russell, G
Stockdale, E A
Watson, C A
Walker, R
Younie, D
2006
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
en
/id/eprint/10160/1/Energy_and_environmental_burdens_of_organic_and_non-organic_agriculture_and_horticulture.pdf
Williams, A G; Audsley, E and Sandars, D L (2006) Energy and environmental burdens of organic and non-organic agriculture and horticulture. In: Atkinson, C; Ball, B; Davies, D H K; Rees, R; Russell, G; Stockdale, E A; Watson, C A; Walker, R and Younie, D (Eds.) Aspects of Applied Biology 79, What will organic farming deliver? COR 2006, Association of Applied Biologists, pp. 19-23.
oai:orgprints.org:10162
2010-04-12T07:34:47Z
7374617475733D707562
7375626A656374733D656E7669726F6E6D656E74
7375626A656374733D34706C616E74:31706C616E7470726F64
7375626A656374733D33616E696D616C:31616E696D616C70726F64
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D656E7669726F6E6D656E74:35656D697373696F6E73
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/10162/
Indicator systems - resource use in organic systems
Topp, C F E
Watson, C A
Rees, R M
Stockdale, E A
Environmental aspects
Production systems
Production systems
Recycling, balancing and resource management
Air and water emissions
A balanced use of resources within organic farming systems is required to maintain sustainable systems. Hence, it is essential to have tools that can assess the use of resources within the farming system and their impact on the environment. The range of tools that have been developed include those assessing local farm-scale issues together with those that assess impacts at the global scale. At the global scale assessments are usually made on the basis of a unit of product whereas at the local scale assessments can also be made on an area basis. In addition, the tools also assess a variety of issues, e.g. biodiversity, pollution potential, energy and water use. The level of detail required for the different assessment tools differs substantially; nevertheless it is essential that the indicator systems developed are based on sound knowledge, are acceptable to the farmers and can guide their future actions.
Association of Applied Biologists
Atkinson, C
Ball, B
Davies, D H K
Rees, R
Russell, G
Stockdale, E A
Watson, C A
Walker, R
Younie, D
2006
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
en
/id/eprint/10162/1/Energy_and_environmental_burdens_of_organic_and_non-organic_agriculture_and_horticulture.pdf
Topp, C F E; Watson, C A; Rees, R M and Stockdale, E A (2006) Indicator systems - resource use in organic systems. In: Atkinson, C; Ball, B; Davies, D H K; Rees, R; Russell, G; Stockdale, E A; Watson, C A; Walker, R and Younie, D (Eds.) Aspects of Applied Biology 79, What will organic farming deliver? COR 2006, Association of Applied Biologists, pp. 25-28.
oai:orgprints.org:10315
2010-04-12T07:34:55Z
7374617475733D707562
7375626A656374733D6B6E6F776C65646765:39656475636174696F6E
7375626A656374733D316F7267616E696373:6F7267616E6963732D636F756E7472696573:636F756E74726965732D63756261
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D6A6F75726E616C70
https://orgprints.org/id/eprint/10315/
Kubas Biolandbau-Revolution: Auskommen mit den eigenen Ressourcen
Kilcher, Lukas
Education, extension and communication
Cuba
Recycling, balancing and resource management
Kreislaufwirtschaft, Einsatz betriebseigener Produktionsmittel und regionale Vermarktung sind zentrale Elemente des Biolandbaus. Auf den ersten Blick stehen diese im Widerspruch zu den riesigen Monokulturen Kubas und zu einer exportorientierten Landwirtschaft. Doch die Rückbesinnung auf eigene Ressourcen ist für Kuba eine Notwendigkeit. Der Biolandbau eröffnet den kubanischen Landwirtschaftsbetrieben zusätzliche Marktchancen und neue Wege, eine eigenständige Landwirtschaft umzusetzen.
Westermann-Verlag
2006
Journal paper
NonPeerReviewed
application/pdf
de
/id/eprint/10315/1/Kilcher_2006_CubaArtikelWestermann.pdf
Kilcher, Lukas (2006) Kubas Biolandbau-Revolution: Auskommen mit den eigenen Ressourcen. Geographische Rundschau, 58 (12), pp. 54-60.
oai:orgprints.org:10389
2010-04-12T07:34:58Z
7374617475733D756E707562
7375626A656374733D656E7669726F6E6D656E74:3762696F646976657273697479
7375626A656374733D33616E696D616C:31616E696D616C70726F64:356D616C6C
7375626A656374733D34706C616E74
7375626A656374733D33616E696D616C:31616E696D616C70726F64
7375626A656374733D33616E696D616C:37616E696D616C6865616C7468
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D33616E696D616C:3366656564696E67
7375626A656374733D37666F6F64:38706F6C696379
7375626A656374733D33616E696D616C:31616E696D616C70726F64:316461697279
7375626A656374733D37666F6F64:356D61726B657473
7375626A656374733D33616E696D616C:31616E696D616C70726F64:3770696773
74797065733D7265706F7274
https://orgprints.org/id/eprint/10389/
Jahresbericht 2006 des Instituts für ökologischen Landbau der Bundesforschungsanstalt für Landwirtschaft (FAL)
Rahmann, Gerold
Biodiversity and ecosystem services
Sheep and goats
Crop husbandry
Production systems
Health and welfare
Recycling, balancing and resource management
Feeding and growth
Policy environments and social economy
Dairy cattle
Markets and trade
Pigs
Comprehensive annual report 2006 of the Institute of Organic Farming of the German Agricultural Research Centre.
2006
Report
NonPeerReviewed
application/pdf
de
/id/eprint/10389/1/Jahresbericht_OEL_2006_Langfassung.pdf
Rahmann, Gerold (2006) Jahresbericht 2006 des Instituts für ökologischen Landbau der Bundesforschungsanstalt für Landwirtschaft (FAL). [Annual report 2006 of the Federal Institute of Organic Farming of the German Agriculture Research Centre (FAL).] Bundesforschungsanstalt für Landwirtschaft (FAL) , Institut für ökologischen Landbau.
oai:orgprints.org:10470
2010-04-12T07:35:02Z
7375626A656374733D656E7669726F6E6D656E74
7375626A656374733D37666F6F64:327365637572697479
7375626A656374733D316F7267616E696373
7375626A656374733D35736F696C
7375626A656374733D6B6E6F776C65646765
7375626A656374733D34706C616E74
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D666163696C697479
https://orgprints.org/id/eprint/10470/
Feldversuchsstationen zum Ökologischen Landbau der Sächsischen Landesanstalt für Landwirtschaft
Environmental aspects
Food security, food quality and human health
"Organics" in general
Soil
Knowledge management
Crop husbandry
Recycling, balancing and resource management
Es werden Einrichtungen der Sächsischen Landesanstalt für Landwirtschaft beschrieben, auf denen Feldversuche zum Ökologischen Landbau durchgeführt werden.
Research facility description
NonPeerReviewed
application/pdf
de
/id/eprint/10470/1/Oeko_Versuchskonzept_Sn.pdf
{Facility} Feldversuchsstationen zum Ökologischen Landbau der Sächsischen Landesanstalt für Landwirtschaft. [Experimental stations for Organic Agriculture by the Saxon State Institute for Agriculture.] Facility Leader(s): Sächsische Landesanstalt für Landwirtschaft, Dresden, Sächsische Landesanstalt für Landwirtschaft .
oai:orgprints.org:10882
2010-04-12T07:35:22Z
7374617475733D707562
7375626A656374733D35736F696C:346E75747269656E74
7375626A656374733D316F7267616E696373
7375626A656374733D35736F696C:31736F696C7175616C
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D34706C616E74:33636F6D706F7374
74797065733D6A6F75726E616C70
https://orgprints.org/id/eprint/10882/
Klimaschutz auf Kosten des Bodenschutzes?
Beste, Andrea
Nutrient turnover
"Organics" in general
Soil quality
Recycling, balancing and resource management
Composting and manuring
Die Nutzung von Bioenergie hat in den letzten Jahren aufgrund der weltweit wachsenden Energienachfrage und der Probleme des Klimawandels erheblich an Bedeutung zugenommen. Sowohl eine CO2-neutrale Energienutzung, als auch die Möglichkeit zur Einkommensdiversifizierung in der Landwirtschaft ist grundsätzlich zu begrüssen. Einseitige Fruchtfolgen und die Düngung mit C-reduzierten Gärresten führen jedoch zu weiterem Humusabbau. Gerade für den ökologischen Landbau ist die Verwendung von Biogasgülle in Bodenfruchtbarkeitshinsicht fraglich. Humusabbau verstärkt die Folgen des Klimawandels – Extremregenfälle, Hochwassergefahr und Dürre – wesentlich und ist angesichts der Auswirkungen auf die Erntesicherheit geradezu fahrlässig. Statt dessen müssten unsere landwirtschaftlich genutzten Böden durch ein angepasstes Humusmanagement fit gemacht werden, um die Ernte- und Energiesicherheit zu erhöhen. Ansätze hierzu bietet der ökologische Landbau, doch Forschung und Beratung hierzu wird bisher vernachlässigt.
European Land and Soil Alliance
2007-07
Journal paper
NonPeerReviewed
application/pdf
de
/id/eprint/10882/1/KlimaschutzBodenschutz_llsn22.pdf
Beste, Andrea (2007) Klimaschutz auf Kosten des Bodenschutzes? [Climate protection at the expense of soil conservation?] Local Land and Soil News (22/23), pp. 28-29.
oai:orgprints.org:11183
2010-04-12T07:35:35Z
7374617475733D707562
7375626A656374733D34706C616E74:31706C616E7470726F64
7375626A656374733D326661726D696E67:6661726D2D6E75747269656E742D6D616E6167656D656E74
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D326661726D696E67:326661726D65636F6E
74797065733D776562
https://orgprints.org/id/eprint/11183/
Biogas fra energiafgrøder giver bedre sædskifter og højere udbytter
Tersbøl, Michael
Bertelsen, Inger
Production systems
Farm nutrient management
Recycling, balancing and resource management
Farm economics
Produktion af biogas og biogasgylle ud fra økologiske energiafgrøder giver økonomisk grundlag for bedre sædskifter, større næringsstoftilførsel og dermed højere dyrkningssikkerhed. Desuden giver det en række miljømæssige fordele.
2007-02
Web product
NonPeerReviewed
application/pdf
en
/id/eprint/11183/1/11183.pdf
Tersbøl, Michael and Bertelsen, Inger (2007) Biogas fra energiafgrøder giver bedre sædskifter og højere udbytter. [Biogas from energi crops gives better crop rotations and higher yields.] . Online at http://www.lr.dk/planteavl/informationsserier/planteavlsorientering/pl02-173.htm <http://www.lr.dk/planteavl/informationsserier/planteavlsorientering/pl02-173.htm>.
oai:orgprints.org:11302
2010-04-12T07:35:40Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/11302/
Bioethanol from Germinated Grains.
Thomsen, MH
Tajoacha, N
Wu, C
Hovgaard, S
Houmøller, LP
Holm-Nielsen, JB
Thomsen, AB
Recycling, balancing and resource management
The most well-known way to produce bioethanol is by the enzymatic hydrolysis and fermentation of starch. In a new project “BioConcens” (2007) sponsored by DARCOF (DAnish Research Center for Organic Food and farming) one aim is to develop a combined ethanol and biogas production for use in organic farming using starch containing biomass. Natural enzymes from cereals will be used for hydrolysis of starch to glucose in accordance with technology in brewing technology. Commercial enzymes are often produced from gene-modified organisms and will therefore not be used in the suggested organic context or process.
A preliminary study was performed in which grains of wheat, rye, and barley were germinated using traditional methods applied in malting for beer production. During malting the amylase enzymes present in the grain are activated (autoamylolytic effect). Three steps were applied in the malting process; steeping, germination, and drying of the grains. After malting the grains were milled and mixed with water to 13% DM, cooked at 57.5C for 2 hours (to activate the enzymes), and cooled to 30C before adding Bakers Yeast.
The results of this study indicate that efficient hydrolysis of starch can be achieved by activation of autoamylolytic enzymes in cereal grains after a malting process. The ethanol yields obtained in the autoamylolytic hydrolysis was comparable (or slightly higher) to that of reference experiments using commercial enzymes (amylases). The highest ethanol yield was obtained with wheat (0.34 g/g DM grain), followed by barley (0.31 g/g DM grain), and rye (0.29 g/g DM grain).
2007
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
en
/id/eprint/11302/1/Germinated_grain_29th_symp_Denver_2007.pdf
Thomsen, MH; Tajoacha, N; Wu, C; Hovgaard, S; Houmøller, LP; Holm-Nielsen, JB and Thomsen, AB (2007) Bioethanol from Germinated Grains. Poster at: 29th Symposium on Biotechnology for Fuels and Chemicals., Denver, USA, 29/4 – 2/5 2007.
oai:orgprints.org:11412
2010-04-12T07:35:44Z
7374617475733D756E707562
7375626A656374733D656E7669726F6E6D656E74
7375626A656374733D6B6E6F776C65646765:397265736561726368:346D6574686F6473:32696E64696361746F7273
7375626A656374733D34706C616E74:31706C616E7470726F64:35766567657461626C6573
7375626A656374733D34706C616E74
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D656E7669726F6E6D656E74:35656D697373696F6E73
7375626A656374733D326661726D696E67:326661726D65636F6E
74797065733D776F726B7061706572
https://orgprints.org/id/eprint/11412/
The ecological footprint method on a farm level – a case study on a UK organic farm with parallel cropping
Schmutz, Dr Ulrich
Firth, Mr Chris
Lewis, Mr Kevin
Lillywhite, Mr Robert
Environmental aspects
Indicators and other value-laden measures
Vegetables
Crop husbandry
Recycling, balancing and resource management
Air and water emissions
Farm economics
There is increasing interest in the farming community to understand and improve their ecological footprint and reduce CO2-carbon emissions. This case study compares the ecological footprint of organic and conventional cabbage, celeriac, sugar beet and winter wheat crops on a UK commercial, parallel cropping, farm. Results show lower ecological footprints and energy ratios in all organic crops. However, CO2-emissions per unit yield are only lower if the fertility building is not considered. Including energy use for fertility building and reducing yields in proportion to the fertility area brings CO2-emissions per unit yield level with conventional. It is concluded that in order to improve their ecological footprint organic farming needs to improve yield levels and make better use of the fertility area by using it as biogas for energy production, growing main crop legumes or using only short-term fertility building.
2008
Working paper
NonPeerReviewed
other
en
/id/eprint/11412/1/Schmutz_et_al_COR_Cirencester_%282008%29.doc
Schmutz, Dr Ulrich; Firth, Mr Chris; Lewis, Mr Kevin and Lillywhite, Mr Robert (2008) The ecological footprint method on a farm level – a case study on a UK organic farm with parallel cropping. Working paper, HRDA Garden Organic . [Unpublished]
oai:orgprints.org:11446
2010-04-12T07:35:46Z
oai:orgprints.org:11548
2010-04-12T07:35:49Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/11548/
The Circular Economy of a Local Organic Food Chain: Xiedao in Beijing
Liu, Yuexian
Høgh-Jensen, Henning
Egelyng, Henrik
Recycling, balancing and resource management
The local organic food market in China is growing and socalled leisure agriculture has been widely accepted and advocated in urban areas as a positive means of relaxation. This paper presents an analysis of a local organic food chain based on leisure agriculture and seeks to explain development of organic food in Urban China using the theoretical frame of the Circular Economy. The study uses a local organic food chain involving Xiedao as a case. In conclusion, the paper provides an estimate of the energy use efficiency of the chain.
2008
Conference paper, poster, etc.
NonPeerReviewed
rtf
en
/id/eprint/11548/1/Liu_11548_ed.doc
Liu, Yuexian; Høgh-Jensen, Henning and Egelyng, Henrik (2008) The Circular Economy of a Local Organic Food Chain: Xiedao in Beijing. Paper at: Cultivating the Future Based on Science: 2nd Conference of the International Society of Organic Agriculture Research ISOFAR, Modena, Italy, June 18-20, 2008.
oai:orgprints.org:11677
2010-04-12T07:35:55Z
oai:orgprints.org:11849
2010-04-12T07:36:01Z
oai:orgprints.org:12304
2010-04-12T07:36:20Z
7374617475733D707562
7375626A656374733D326661726D696E67:6661726D2D6E75747269656E742D6D616E6167656D656E74
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D656E7669726F6E6D656E74:35656D697373696F6E73
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/12304/
Nitrogen Utilization in Integrated Crop and Animal Production
Seuri, Pentti
Farm nutrient management
Recycling, balancing and resource management
Air and water emissions
The principles of organic production are based on integration between crop and animal production and self-regulated nutrient intensity. A comparison between specialized dairy and crop farm models and an integrated dairy and crop farm model showed 24 % higher total production per area and higher nitrogen utilization in the integrated system. The main factors were more efficient nutrient circulation, better utilization of legume crops and low intensity of nitrogen on non-legume crops.
2008
Conference paper, poster, etc.
NonPeerReviewed
rtf
en
/id/eprint/12304/1/Seuri_12304_rev.doc
Seuri, Pentti (2008) Nitrogen Utilization in Integrated Crop and Animal Production. Poster at: Cultivating the Future Based on Science: 2nd Conference of the International Society of Organic Agriculture Research ISOFAR, Modena, Italy, June 18-20, 2008.
oai:orgprints.org:12398
2010-04-12T07:36:25Z
oai:orgprints.org:12746
2010-04-12T07:36:39Z
oai:orgprints.org:12940
2010-04-12T07:36:46Z
7374617475733D707562
7375626A656374733D326661726D696E67:376275696C64696E6773
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D626F6F6B
https://orgprints.org/id/eprint/12940/
Biogaserzeugung im ökologischen Landbau
Buildings and machinery
Recycling, balancing and resource management
Biobetriebe denken verstärkt über einen Einstieg in die Biogastechnologie nach. In diesem Heft werden sowohl Fragen der gesetzlichen und privaten Regelungen des ökologischen Landbaus zur Biogaserzeugung als auch pflanzenbauliche, technische und wirtschaftliche Aspekte behandelt.
KTBL Darmstadt
Kuratorium für Technik und Bauwesen in der Landwirtschaft, KTBL
2007
Book
NonPeerReviewed
application/pdf
de
/id/eprint/12940/2/Heft_40065.pdf
coverimage
de
/id/eprint/12940/3/40065.jpg
source
de
/id/eprint/12940/4/40065Biogaserz%C3%96koM.doc
Kuratorium für Technik und Bauwesen in der Landwirtschaft, KTBL (Ed.) (2007) Biogaserzeugung im ökologischen Landbau. KTBL Darmstadt.
oai:orgprints.org:12950
2010-04-12T07:36:47Z
7374617475733D707562
7375626A656374733D326661726D696E67:6661726D2D6E75747269656E742D6D616E6167656D656E74
7375626A656374733D34706C616E74
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D326661726D696E67:326661726D65636F6E
74797065733D626F6F6B
https://orgprints.org/id/eprint/12950/
Energiepflanzen
Farm nutrient management
Crop husbandry
Recycling, balancing and resource management
Farm economics
Die Datensammlung „Energiepflanzen“ bietet umfassende Informationen zum Energiepflanzenanbau und leistet wertvolle Hilfestellungen bei der Produktionsplanung. Berücksichtigt sind dabei sowohl bekannte, als auch bisher in der Praxis kaum verbreitete Kulturen, für die noch wenige Anbauerfahrungen vorliegen, die aber ein großes Potenzial für die Verbreitung in der landwirtschaftlichen Praxis haben.
KTBL Darmstadt
Kuratorium für Technik und Bauwesen in der Landwirtschaft, KTBL
2006
Book
NonPeerReviewed
application/pdf
de
/id/eprint/12950/1/DS_19485.pdf
source
de
/id/eprint/12950/2/dEnergiepflanzen19485-WZM.doc
coverimage
de
/id/eprint/12950/3/19485.jpg
Kuratorium für Technik und Bauwesen in der Landwirtschaft, KTBL (Ed.) (2006) Energiepflanzen. KTBL Darmstadt.
oai:orgprints.org:13073
2010-03-24T11:05:31Z
7375626A656374733D35736F696C:346E75747269656E74
7375626A656374733D34706C616E74:3263726F70636F6D62
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D656E7669726F6E6D656E74:35656D697373696F6E73
74797065733D70726F6A656374
https://orgprints.org/id/eprint/13073/
Wasserschutz im Ökologischen Landbau: Leitfaden für Land- und Wasserwirtschaft
Nutrient turnover
Crop combinations and interactions
Recycling, balancing and resource management
Air and water emissions
Mit dem Projekt wird der wissenschaftliche Sachstand eines gewässerschonenden Ökologischen Landbaus in Wissenschaft, Beratung und Praxis aufgearbeitet. Die grundlegenden Zusammenhänge zwischen Landnutzung und Gewässerqualität werden dargestellt. Klar verständlich und anschaulich ausgearbeitet werden die im Ökologischen Landbau praxisgerechten und gewässerverträglichen Strategien, Konzepte und Maßnahmen einer weitestgehenden Reduzierung oder Vermeidung von Nitratausträgen und weiteren Stoffbelastungen. Der zu erarbeitende Leitfaden und die zugehörige Foliensammlung werden eine aktuelle und belastbare Grundlage für die Wissensvermittlung bilden und die Verbreitung praxisorientierter Lösungen ermöglichen. Mit der standortangepaßten Ausrichtung der Bewirtschaftung auf den Gewässerschutz, insbesondere in Wasserschutzgebieten, wird der Ökologische Landbau entsprechend seinem Ziel höchstmöglicher Umweltverträglichkeit konsistent und nachhaltig weiterentwickelt.
Angaben zur Finanzierung des Projekts finden Sie im Förderkatalog des Bundes unter http://foerderportal.bund.de/foekat/jsp/StartAction.do. Bitte geben Sie in das Suchfeld eine 28 plus das Förderkennzeichen (FKZ) des BÖL-Projektes ein, z.B. 2808OE212 für das BÖL-Projekt mit der FKZ 08OE212.
Project description
NonPeerReviewed
{Project} Wasserschutz im Ökologischen Landbau: Leitfaden für Land- und Wasserwirtschaft. [Water protection in organic farming - manual for the farming and water supply sector.] Runs 2007 - 2009. Project Leader(s): Haas, Dr. habil. Guido, AgrarIngenieurbüro Haas, D-Bad Honnef .
oai:orgprints.org:13152
2010-04-12T07:36:56Z
7374617475733D756E707562
7375626A656374733D35736F696C:346E75747269656E74
7375626A656374733D34706C616E74:3263726F70636F6D62
7375626A656374733D35736F696C:31736F696C7175616C
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D656E7669726F6E6D656E74:35656D697373696F6E73
7375626A656374733D34706C616E74:33636F6D706F7374
74797065733D746865736973
https://orgprints.org/id/eprint/13152/
Anwendung einer neuen standortabhängigen Methode zur Humusbilanzierung an sächsischen Dauertestflächen und Vergleich mit anderen üblichen Methoden zur Feststellung des Versorgungsgrades mit organischer Substanz im Hinblick auf Sicherung der Nachhaltigkeit der Betriebe im konventionellen und ökologischen Landbau
Seibt, Perry
Nutrient turnover
Crop combinations and interactions
Soil quality
Recycling, balancing and resource management
Air and water emissions
Composting and manuring
In der vorliegenden Arbeit wurden nachfolgend genannte Methoden zur Humusbilanzierung an Ergebnissen von 760 Dauertestflächen der landwirtschaftlichen Praxis des Freistaates Sachsen getestet:
- VDLUFA-Methode
- REPRO
- Standortangepasste Methode.
Ziel dieser Bilanzierung war es herauszufinden, welche Methoden in einem relativ großen, standörtlich stark differenzierten Gebiet realistische und differenzierte Werte liefern. Bei dem Vergleich wurden weiterhin die Unterschiede zwischen konventioneller und ökologischer Landbewirtschaftung berücksichtigt und die mögliche Abfuhrmenge organischer Reststoffe (Stroh) der Landwirtschaft von den Ackerflächen kalkuliert und auf die Fläche Sachsens extrapoliert.
2007
Thesis
NonPeerReviewed
application/pdf
de
/id/eprint/13152/1/Seibt-DiplArbeit-Endfass.pdf
Seibt, Perry (2007) Anwendung einer neuen standortabhängigen Methode zur Humusbilanzierung an sächsischen Dauertestflächen und Vergleich mit anderen üblichen Methoden zur Feststellung des Versorgungsgrades mit organischer Substanz im Hinblick auf Sicherung der Nachhaltigkeit der Betriebe im konventionellen und ökologischen Landbau. Thesis, TU Dresden, Fakultät Forst-, Geo- und Hydrowissenschaften , Institut für Bodenkunde und Standortlehre. . [Unpublished]
oai:orgprints.org:13218
2010-04-12T07:36:59Z
oai:orgprints.org:13694
2012-09-06T11:28:28Z
7374617475733D756E707562
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D326661726D696E67:326661726D65636F6E
74797065733D7265706F7274
https://orgprints.org/id/eprint/13694/
Themennetzwerk Energie im ökologischen Landbau
Dobelmann, Jan Kai
Böttger, Gunnar
Recycling, balancing and resource management
Farm economics
Hintergrund der Veranstaltung
Gerade in der ökologischen Landwirtschaft ist Energie ein sehr wichtiger Faktor. Wegen der langfristigen Bedeutung dieses Themas wurde daher von sesolutions in Zusammenarbeit mit der Deutschen Gesellschaft für Sonnenenergie e.V. ein Themennetzwerk Energie im ökologischen Landbau initiiert, das die aktuellen Möglichkeiten einer umweltbewussten Energieversorgung für den ökologischen Landbau aufarbeiten soll.
Vom Bundesprogramm Ökologischer Landbau gefördert, wurden über das Netzwerk drei Workshops organisiert:
Bei dem ersten Workshop auf der Internationalen Garten Ausstellung in Rostock wurde das Thema Energieberatung in der ökologischen Landwirtschaft behandelt. Inhalte waren die Gestaltung der Energieversorgung, Eigenstromerzeugung durch Biomasse, regionale Energiestrukturen mit Holz, Solarenergie, Stromlieferverträge sowie gemeinschaftliche Energieerzeugungsanlagen, Kooperations- und Einkaufsgemeinschaften und Fördermöglichkeiten bei der Gebäudesanierung.
In dem zweiten Workshop stand das Solare Bauen in der Landwirtschaft im Vordergrund. Inhalte dieses Workshops waren der Neubau von Betriebsgebäuden, Energiesparende Bauweisen, aktive und passive Nutzung der Solarenergie, naturnahe energiesparende Baustoffe, Wärmeversorgung von Gebäuden und Altbauten sowie energiegerechte Sanierung in der Landwirtschaft.
Bei dem dritten Workshop im Rahmen der Clean Energy Power auf der Grünen Woche in Berlin wurde ein Gesamtüberblick über Möglichkeiten gegeben, regenerative Energien in der Landwirtschaft einzusetzen. Die Kurzreferate zu Beginn jedes Themas dienten als Grundlage für die anschließende Diskussion.
Das Netzwerk legt bei seiner Arbeit großen Wert auf einen Dialog zwischen Experten des Energiebereiches und den Anwendern des ökologischen Landbaus.
Durch intensiven Austausch von Betriebserfahrungen mit erneuerbaren Energien über die Workshops hinaus hoffen wir einen kleinen Beitrag leisten zu können, die vielen Fragen rund um eine nachhaltige Energieversorgung lösen zu können.
Ergebnisse der Workshops:
- Sehr reges Interesse bei Industrie und Landwirten
- Erneuerbare Energien ermöglichen neue Einkommensquellen
- Vom Landwirt zum Energiewirt
- Industrie entdeckt Landwirtschaf als weiteren Markt
Hintergrund des Netzwerks
Aufgabe des Netzwerkes war die Ermittlung und Diskussion des wissenschaftlichen und technischen Standes für den Themenbereiche Energie in der ökologischen Landwirtschaft und nachgelagerten Verarbeitungsbetrieben.
Ziel der Arbeit des Netzwerkes war es für Anwendungen der Landwirtschaft, wie Biogasanlagen, Solarkollektoren und Photovoltaikanlagen, Holzheizungen und dezentrale Biomassekraftwerke mit festen oder flüssigen biogenen Brennstoffen den Wissensstand zu ermitteln und allgemeinverständlich aufzubereiten.
2004
Report
NonPeerReviewed
application/pdf
de
/id/eprint/13694/1/13694-02OE643-sesolutions-dobelmann-2004-themennetzwerk_energie.pdf
Dobelmann, Jan Kai and Böttger, Gunnar (2004) Themennetzwerk Energie im ökologischen Landbau. [Energy in ecological farming.] sesolutions - Research & Development Division, D-Karlsruhe .
oai:orgprints.org:13815
2009-08-20T14:39:52Z
7374617475733D756E707562
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D326661726D696E67:326661726D65636F6E
74797065733D70726F6A656374
https://orgprints.org/id/eprint/13815/
Themennetzwerk Energie im ökologischen Landbau
Dobelmann, Jan Kai
Böttger, Gunnar
Recycling, balancing and resource management
Farm economics
Hintergrund der Veranstaltung
Gerade in der ökologischen Landwirtschaft ist Energie ein sehr wichtiger Faktor. Wegen der langfristigen Bedeutung dieses Themas wurde daher von sesolutions in Zusammenarbeit mit der Deutschen Gesellschaft für Sonnenenergie e.V. ein Themennetzwerk Energie im ökologischen Landbau initiiert, das die aktuellen Möglichkeiten einer umweltbewussten Energieversorgung für den ökologischen Landbau aufarbeiten soll.
Vom Bundesprogramm Ökologischer Landbau gefördert, wurden über das Netzwerk drei Workshops organisiert:
Bei dem ersten Workshop auf der Internationalen Garten Ausstellung in Rostock wurde das Thema Energieberatung in der ökologischen Landwirtschaft behandelt. Inhalte waren die Gestaltung der Energieversorgung, Eigenstromerzeugung durch Biomasse, regionale Energiestrukturen mit Holz, Solarenergie, Stromlieferverträge sowie gemeinschaftliche Energieerzeugungsanlagen, Kooperations- und Einkaufsgemeinschaften und Fördermöglichkeiten bei der Gebäudesanierung.
In dem zweiten Workshop stand das Solare Bauen in der Landwirtschaft im Vordergrund. Inhalte dieses Workshops waren der Neubau von Betriebsgebäuden, Energiesparende Bauweisen, aktive und passive Nutzung der Solarenergie, naturnahe energiesparende Baustoffe, Wärmeversorgung von Gebäuden und Altbauten sowie energiegerechte Sanierung in der Landwirtschaft.
Bei dem dritten Workshop im Rahmen der Clean Energy Power auf der Grünen Woche in Berlin wurde ein Gesamtüberblick über Möglichkeiten gegeben, regenerative Energien in der Landwirtschaft einzusetzen. Die Kurzreferate zu Beginn jedes Themas dienten als Grundlage für die anschließende Diskussion.
Das Netzwerk legt bei seiner Arbeit großen Wert auf einen Dialog zwischen Experten des Energiebereiches und den Anwendern des ökologischen Landbaus.
Durch intensiven Austausch von Betriebserfahrungen mit erneuerbaren Energien über die Workshops hinaus hoffen wir einen kleinen Beitrag leisten zu können, die vielen Fragen rund um eine nachhaltige Energieversorgung lösen zu können.
Ergebnisse der Workshops:
- Sehr reges Interesse bei Industrie und Landwirten
- Erneuerbare Energien ermöglichen neue Einkommensquellen
- Vom Landwirt zum Energiewirt
- Industrie entdeckt Landwirtschaf als weiteren Markt
Hintergrund des Netzwerks
Aufgabe des Netzwerkes war die Ermittlung und Diskussion des wissenschaftlichen und technischen Standes für den Themenbereiche Energie in der ökologischen Landwirtschaft und nachgelagerten Verarbeitungsbetrieben.
Ziel der Arbeit des Netzwerkes war es für Anwendungen der Landwirtschaft, wie Biogasanlagen, Solarkollektoren und Photovoltaikanlagen, Holzheizungen und dezentrale Biomassekraftwerke mit festen oder flüssigen biogenen Brennstoffen den Wissensstand zu ermitteln und allgemeinverständlich aufzubereiten.
2004
Project description
NonPeerReviewed
{Project} Themennetzwerk Energie im ökologischen Landbau. [Energy in ecological farming.] Runs 2002 - 2004. Project Leader(s): Dobelmann, Dipl. Ing. Jan Kai, sesolutions - Research & Development Division, D-Karlsruhe .
oai:orgprints.org:14115
2016-02-25T06:52:20Z
7374617475733D7375626D6974746564
7375626A656374733D6B6E6F776C65646765:397265736561726368
7375626A656374733D6B6E6F776C65646765:397265736561726368:346D6574686F6473:32696E64696361746F7273
7375626A656374733D6B6E6F776C65646765
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/14115/
Zur Bewertung der Nachhaltigkeit von Biokraftstoffen
Schäfer, Winfried
Research methodology and philosophy
Indicators and other value-laden measures
Knowledge management
Recycling, balancing and resource management
Crop production is a conversion process of sun energy into biomass. Both the cultiva-tion area and the insolation stroking this area limit the energy output of the globe. Thus, food and energy crop production compete for insolation and area. LCA (ISO 14040) was developed for industrial products. Use of LCA in the field of organic farm-ing neglects usually input of sun energy, cultivation area and other basic inputs like precipitation, wind, the geochemical cycle, genetic information and propagation. In well to wheel analysis of biofuels the well corresponds to sun energy and the wheel to draught. A suitable tool for environmental accounting of organic bio fuel production is the emergy analysis. As a measure for sustainability of renewable fuel production, the energy surplus of energy conversion from insolation into fuel per resident and square meter is proposed.
2009-11-14
Conference paper, poster, etc.
NonPeerReviewed
application/msword
en
/id/eprint/14115/2/0801_Sch%C3%A4fer_14115_e.doc
application/msword
de
/id/eprint/14115/1/Sch%C3%A4fer_z%C3%BCrich_2009_29.8..doc
Schäfer, Winfried (2009) Zur Bewertung der Nachhaltigkeit von Biokraftstoffen. Paper at: [Submitted]
oai:orgprints.org:14205
2010-04-12T07:37:48Z
7374617475733D707562
7375626A656374733D656E7669726F6E6D656E74:3762696F646976657273697479
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/14205/
Erhalt ökologisch wertvoller Grünlandstandorte durch eine
Integrierte Festbrennstoff- und Biogasproduktion aus Biomasse
(IFBB-Verfahren)
Richter, M.sc. Felix
Kuschnereit, M.sc. Sara
Graß, Dr. Rüdiger
Fricke, Dipl.-Ing. agr. Thomas
Wachendorf, Prof. Dr. Michael
Biodiversity and ecosystem services
Recycling, balancing and resource management
As a new utilisation concept for the conservation of ecologically valuable habitats the
integrated generation of solid fuel and biogas from biomass (IFBB) was tested on five
semi-natural grasslands from typical German mountain areas. Through hydrothermal
conditioning and mechanical dehydration grassland silage was separated into a press
cake and a press fluid. In anaerobic digestion experiments with press fluids methane
yields of 304 to 522 normal litre per kg organic dry matter were obtained within 13
days. The specific methane production was higher and went faster compared to the
fermentation of the untreated grassland silage. Elemental analyses of the press cakes
showed a significant reduction in compounds detrimental for combustion. The ash
softening temperature and the lower heating value of the press cakes increased
compared to the parent material. The conditioning at high temperatures (60°C and
80°C) showed the best effects for a qualitative improvement of the press fluid as
fermentation substrate and the press cake as solid fuel compared to the untreated
grassland silage. The energy conversion efficiency of the IFBB procedure (52-62%)
was higher compared to a conventional digestion of the whole crop silage (26%). In
view of the results, the IFBB procedure is a promising utilisation alternative for areas
managed under nature conservation standards, whose biomass is difficult to exploit.
2009
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
de
/id/eprint/14205/1/Richter_14205.pdf
Richter, M.sc. Felix; Kuschnereit, M.sc. Sara; Graß, Dr. Rüdiger; Fricke, Dipl.-Ing. agr. Thomas and Wachendorf, Prof. Dr. Michael (2009) Erhalt ökologisch wertvoller Grünlandstandorte durch eine Integrierte Festbrennstoff- und Biogasproduktion aus Biomasse (IFBB-Verfahren). Paper at: 10. Wissenschaftstagung Ökologischer Landbau, Zürich, 11.-13. Februar 2009.
oai:orgprints.org:14402
2010-04-12T07:38:00Z
7374617475733D707562
7375626A656374733D656E7669726F6E6D656E74:3762696F646976657273697479
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/14402/
Characterisation of most relevant feedstock for biogas and
bioethanol production in organic farming
Oleskowicz-Popiel, Piotr
Thomsen, Mette Hedegaard
Nielsen, Henrik Bangsø
Schmidt, Jens Ejbye
Thomsen, Anne Belinda
Biodiversity and ecosystem services
Recycling, balancing and resource management
Bioenergy production from local bioresources has a great potential. It is important to reduce dependency on fossil fuels and decrease green house gas emission in organic agriculture (OA). Both biogas and bioethanol can be produced in OA and significantly contribute to the sustainability of organic farms. Soil fertility is the basis for OA: it has been of concern that the fertility might decline if most of the organic residues were converted into energy and only effluent from anaerobic digestion process was recycled. However, by intelligent management of organic residues and crop rotation it is possible to avoid decrease of soil fertility and at the same time produce renewable energy.
The presented study is part of the BioConcens project (http://www.bioconcens.elr.dk/uk/). This study is focused on characterisation of relevant feedstock for co-production of biogas and bioethanol within organic farming. Clover grass silage, dry clover grass and dried grass from meadows were selected. Theoretical biogas and bioethanol yields were calculated. Biogas potential batch tests were performed for each substrate individually and the obtained yield in the lab was compared to the theoretical one. It is expected that the onfarm production of the bioenergy would improve not only sustainability of such a farm but as well economics. Further investigations will be carried out.
2008
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
en
/id/eprint/14402/1/Full_paper_Piotr_Oleskowicz-Popiel-ORAL_Ec29%5B1%5D.pdf
Oleskowicz-Popiel, Piotr; Thomsen, Mette Hedegaard; Nielsen, Henrik Bangsø; Schmidt, Jens Ejbye and Thomsen, Anne Belinda (2008) Characterisation of most relevant feedstock for biogas and bioethanol production in organic farming. In: Proceeding CD.
oai:orgprints.org:14404
2011-08-16T15:42:44Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D3676616C756573:336173736573736D656E74
74797065733D6A6F75726E616C70
https://orgprints.org/id/eprint/14404/
Codigestion of manure and organic waste at centralized biogas plants: process imbalances and limitations
Nielsen, H.B.
Angelidaki, I.
Recycling, balancing and resource management
Assessment of impacts and risks
The present study focuses on process inhibitions in Danish centralized biogas plants. Collection of data from the plants and a number of interviews showed that inhibitions occur frequently. High concentrations of ammonia, long chain fatty acids or other inhibitory compounds, and foaming in prestorage tanks are well known causes of inhibition. These problems mainly occurs due to: 1) inadequate knowledge about the waste composition and 2) its degradation characteristics, 3) inadequate process surveillance especially with regard to volatile fatty acids and 4) insufficient pre-storage capacity causing inexpedient mixing of the different waste products in the pre-storage tanks.
2008
Journal paper
NonPeerReviewed
application/pdf
en
/id/eprint/14404/1/HENRIK_Nielsen_and_Angelidaki-full__paper%5B1%5D.pdf
Nielsen, H.B. and Angelidaki, I. (2008) Codigestion of manure and organic waste at centralized biogas plants: process imbalances and limitations. Water Science and Technology, 58 (7), pp. 1521-1528.
10.2166/wst.2008.507
10.2166/wst.2008.507
oai:orgprints.org:14406
2010-04-12T07:38:00Z
7374617475733D707562
7375626A656374733D656E7669726F6E6D656E74:3762696F646976657273697479
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D3676616C756573:336173736573736D656E74
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/14406/
BioConcens: Biomass and bioenergy production agriculture – consequences for soil fertility, environment, spread of animal parasites and socio-economy
Oleskowicz-Popiel, P
Ambus, P
Carter, M.S.
Dalgaard, T.
Hauggaard-Nielsen, H
Johansen, A
Jørgensen, U
Nielsen, A.M
Nielsen, H.B.
Nielsen, L.H
Olesen, J.E.
Roepstorff, A
Skytte, K
Schmidt, J.E.
Thomsen, A.B.
Thomsen, M.H.
Jensen, E.S.
Biodiversity and ecosystem services
Recycling, balancing and resource management
Assessment of impacts and risks
The research programme called “international research cooperation and organic integrity” was commenced for a period 2006-2010. It is coordinated by DARCOF (The Danish Research Centre for Organic Farming). The whole programme, with acronym DARCOF III, consists of 15 projects (http://www.darcof.dk/research/darcofiii/index.html). One of them is BIOCONCENS - Biomass and bioenergy production in organic farming – consequences for soil fertility, environment, spread of animal parasites and socio-economy (http://www.bioconcens.elr.dk/uk/). The production of bioenergy in organic agriculture (OA) can reduce its dependency of fossil fuels and decrease green house gasses emission; consequently it will increase sustainability of organic farms. Biorefinery concept based on co-production of biogas, bioethanol and protein fodder in organic farming will be developed within the BIOCONCENS project and the background for the project and the different work packages will be presented in this paper.
2008
Conference paper, poster, etc.
NonPeerReviewed
application/pdf
en
/id/eprint/14406/1/poster_Oleskowicz-popiel.pdf
Oleskowicz-Popiel, P; Ambus, P; Carter, M.S.; Dalgaard, T.; Hauggaard-Nielsen, H; Johansen, A; Jørgensen, U; Nielsen, A.M; Nielsen, H.B.; Nielsen, L.H; Olesen, J.E.; Roepstorff, A; Skytte, K; Schmidt, J.E.; Thomsen, A.B.; Thomsen, M.H. and Jensen, E.S. (2008) BioConcens: Biomass and bioenergy production agriculture – consequences for soil fertility, environment, spread of animal parasites and socio-economy. Paper at: vth International Symposium on anaerobic digestion of solid wastes and energy crops.
oai:orgprints.org:14407
2012-06-27T09:43:40Z
oai:orgprints.org:14411
2012-06-27T09:44:15Z
oai:orgprints.org:14415
2014-07-09T11:00:38Z
7374617475733D707562
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D3676616C756573:336173736573736D656E74
74797065733D6E65777361727469636C65
https://orgprints.org/id/eprint/14415/
Græs er ægte grøn energi
Møller, Henrik Bjarne
Nielsen, Lisbeth
Recycling, balancing and resource management
Assessment of impacts and risks
Græs fra engarealer kan mere end fordoble produktionen af biogas, og energibalancen er markant bedre end ved traditionelle landbrugsafgrøder som majs og korn. Samtidig får man fjernet næringsstofferne fra de følsomme områder, og man undgår, at arealerne ender med at blive til skov.
2008-03
Newspaper or magazine article
NonPeerReviewed
application/pdf
da
/id/eprint/14415/3/14415.pdf
Møller, Henrik Bjarne and Nielsen, Lisbeth (2008) Græs er ægte grøn energi. [Grass is real green energy.] Forskning i Bioenergi, March 2008, 23, pp. 4-6.
oai:orgprints.org:14518
2010-04-12T07:38:07Z
7375626A656374733D37666F6F64:3372656379636C696E67
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/14518/
Characterisation of most relevant feedstock for biogas and bioethanol production in organic farming
Oleskowicz-Popiel, Piotr
Nielsen, Henrik Bangsø
Schmidt, Jens Ejbye
Thomsen, Anne Belinda
Thomsen, Mette Hedegaard
Recycling, balancing and resource management
see proceeding
2008
Conference paper, poster, etc.
NonPeerReviewed
other
en
/id/eprint/14518/1/Piotr_Oleskowicz-Popiel_ORAL_Ec-29.ppt
Oleskowicz-Popiel, Piotr; Nielsen, Henrik Bangsø; Schmidt, Jens Ejbye; Thomsen, Anne Belinda and Thomsen, Mette Hedegaard (2008) Characterisation of most relevant feedstock for biogas and bioethanol production in organic farming. Speech at: 5th international symposium of anaerobic digestion of solid waste & energy crops, Hammamet, Tunisia, May 25-28, 2008.
oai:orgprints.org:14519
2011-09-20T13:13:21Z
7375626A656374733D37666F6F64:3372656379636C696E67
7375626A656374733D3676616C756573:336173736573736D656E74
74797065733D636F6E666572656E63655F6974656D
https://orgprints.org/id/eprint/14519/
Codigestion of manure and organic waste at centralized biogas plants: Process imbalances and limitations
Nielsen, Henrik Bangsø
Angelidaki, Irini
Recycling, balancing and resource management
Assessment of impacts and risks
The present study focuses on process inhibitions in Danish centralized biogas plants. Collection of data from the plants and a number of interviews showed that inhibitions occur frequently. High concentrations of ammonia, long chain fatty acids or other inhibitory compounds, and foaming in prestorage tanks are well known causes of inhibition. These problems mainly occurs due to: 1) inadequate knowledge about the waste composition and 2) its degradation characteristics, 3) inadequate process surveillance especially with regard to volatile fatty acids and 4) insufficient pre-storage capacity causing inexpedient mixing of the different waste products in the pre-storage tanks.
2008
Conference paper, poster, etc.
NonPeerReviewed
other
en
/id/eprint/14519/1/Tunesien_maj_2008.ppt
application/pdf
en
/id/eprint/14519/2/Nielsen_2008_Codigestion_of_manure_and_organic_waste_at_centralized_biogas_plants_process_imbalances_and_limitations_.pdf
Nielsen, Henrik Bangsø and Angelidaki, Irini (2008) Codigestion of manure and organic waste at centralized biogas plants: Process imbalances and limitations. Speech at: 5th international symposium of anaerobic digestion of solid waste & energy crops, Hammamet, Tunisia, May 25-28, 2008.
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