Items in the subject area " Crop husbandry > Production systems"

Hospers-Brands, M.Sc. A.J.T.M.; Bremer, B.Sc. E.G.H. and Lammerts van Bueren, Ph.D. E.T. (2006) The prevention of potato volunteers in organic farming systems by using pigs. [ Unpublished, ]

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Anon, (2005) Organic Centre Wales Technical Note 3: Biology and Management of Soil pests.

Anon, (2005) Organic Centre Wales Technical Note 4: Biology and management of slugs.

Anon, (2005) Organic Centre Wales Technical Note 5: Biology and management of wireworms.

Anon, (2005) Organic Centre Wales Technical Note 6: Biology and management of leatherjackets.

Askegaard, Margrethe (2004) Kaliumtal og kaliumbalancer som redskaber i planteproduktionen. [Potassium status and balances as tools in the crop production.] In: Kaliumtal og kaliumbalancer som redskaber i planteproduktionen, January 2004, p. 63. ^*

Axelsen, Jørgen Aagaard and Holmstrup, Martin (2005) Modelling of earthworm population dynamics in agricultural soils (First draft). [ Submitted , March 2005]

Axelsen, Scenior scientist Jørgen Aagaard (2003) Efterafgrøder og grøngødning giver masser af liv i jorden. [Nitrogen catch crops and green manuere causes a lot of life in the soil.] In: Tidsskriftet Praktisk Økologi, 2003. [ In Press , 2003]

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Baab, Gerhardt; Blum, Hanna and Mohns, Sonja (2003) Behandlungsstrategien bei Befall mit Echtem und Falschem Mehltau an Arznei- und Gewürzpflanzen im ökologischen Anbau am Beispiel von Blütendrogen (Calendula officinalis), Blattdrogen (Mentha rotundifolia), Krautdrogen (Epilobium parviflorum) und Körnerdrogen (Pimpinella anisum). [Strategies for the treatment of medicinal plants and culinary herbs infested with powdery and downy mildew, tested on flower drugs (Calendula officinalis), leaf drugs (Mentha rotundifolia), herb drugs (Epilobium parviflorum) and seed drugs (Pimpinella anisum).] [ Unpublished, ]

Becker, Konstantin and Leithold, Günter (2003) Praxiseinführung des Anbaukonzeptes Weite Reihe unter besonderer Berücksichtigung des Qualitätsaspektes bei Backweizen im ökologischen Anbau.

Beckmann, Uta; Kolbe, Hartmut; Model, Annett and Russow, Rolf (2002) Ackerbausysteme im ökologischen Landbau: Untersuchungen zur Nmin-, N2O-N- und NH2-N-Dynamik sowie Rückschlüsse zur Anbau-Optimierung. [Arable organic farming systems: study on the dynamics of nitrogen mineralisation and demineralisation and conclusions for improving methods of cultivation.] Initiativen zum Umweltschutz, 35. Erich Schmidt Verlag, Berlin.

Beckmann, Uta; Kolbe, Hartmut; Model, Annett and Russow, Rolf (2000) Ackerbausysteme im ökologischen Landbau. [Organic arable farming systems.] [ Unpublished, ]

Berntsen, J.; Petersen, B.M.; Kristensen, I.S. and Olesen, J.E. (2004) Nitratudvaskning fra økologiske og konventionalle planteavlsbedrifter - simuleringer med FASSET bedriftsmodellen. Markbrug, 107.

Berntsen, Jørgen (2004) Ingen forskel på nitratudvaskning. In: Økologisk Jordbrug, 2004, p. 6.

Berntsen, Jørgen; Hauggard-Nielsen, Henrik; Olesen, Jørgen; Molt Petersen, Bjørn; Jensen, Erik Steen and Thomsen, Anton (2004) Modelling dry matter production and resource use in intercrops of pea and barley. Field Crops Research, 88, pp. 69-83. ^*

Berntsen, Jørgen; Olesen, Jørgen; Petersen, Bjørn Molt and Eriksen, Jørgen (2003) Simulation of nitrate leaching from an organic dairy crop rotation with different manure types and loads. 12th N Workshop, Exeter, England, 21/9-24/9. In: Abstracts for the 12th N workshop, IGER. [ Unpublished, ]

Bertelsen, Inger and Rasmussen, Ilse A. (2004) Ukrudtets udvikling i de økologiske sædskifteforsøg. [Development in weed infestation in organic trials with crop rotations.] Online at <http://www.lr.dk/planteavl/diverse/oekovaerk_ukrudtets_udvikl.htm>, May 2004. Landscentret, Planteavl, under Dansk Landbrugsrådgivning, er med til at formidle resultater fra forskning og forsøg på de økologiske værkstedsarealer under FØJO. På hjemmesiden samler vi artikler om udvalgte temaer fra forsøgene, og forsøger at give et overblik over hvilke problemer og emner forskerne arbejder med.

{Project} Ökologische Produktion von Arznei- und Gewürzpflanzen [Organic production of medicinal plants and spices]. Runs 2002 - 2004. Project Leader(s): Blum, Hanna, Staatliche Lehr- und Versuchsanstalt für Landwirtschaft, Weinbau und Gartenbau. More information online at <http://fnr.zadi.de/SEARCH/AGFORFNRFORM/DDW?W%3D%28ID_INSTITUTE%3D%27FNR_VB_1630%27%29+order+by+BEGINN/descend%26M%3D1%26K%3DRESSORT_FNR_149%26R%3DY%26U%3D1>.

{Project} Behandlungsstrategien bei Befall mit Echtem und Falschem Mehltau an Arznei- und Gewürzpflanzen im ökologischen Anbau am Beispiel von Blütendrogen, Blattdrogen, Krautdrogen und Körnerdrogen. [Treatment of Mildew at medicinal plants and spices.] Runs 2002 - 2003. Project Leader(s): UNSPECIFIED, Staatliche Lehr- und Versuchsanstalt für Landwirtschaft, Weinbau und Gartenbau. More information online at <http://www.bundesprogramm-oekolandbau.de/fkz=02OE144>.

Blum, Hanna and Palitzsch, Katja (2003) Organische Stickstoffdüngung bei mehrjährigen und mehrschnittigen Kulturen am Beispiel der Pfefferminze. [Organic nitrogen-manuring in perennial and more-cutting crops considering as example peppermint.] 7. Wissenschaftstagung zum Ökologischen Landbau - Ökologischer Landbau der Zukunft, Universität für Bodenkultur, Wien - Institut für ökologischen Landbau, 24.-26.2.2003. In: Freyer, Bernhard (Ed.) Ökologischer Landbau der Zukunft - Beiträge zur 7. Wissenschaftstagung zum Ökologischen Landbau, pp. 589-590.

Boelt, B. (2006) The Danish case study on coexistence and seed production of forage and vegetable crops. NJF seminar no 379 Aspects of Growing Transgenic Crops, Danish Institute of Agricultural Sciences, Research Centre Flakkebjerg, 4200 Slagelse, Denmark, 7-8 March 2006.

Boelt, B. (2005) Det sværeste ved hvidkløver er afpudsningen. Agrologisk, pp. 24-25. ^**

Boelt, B. (2005) 1.000 kg hvidkløver pr. ha! Plantekongres 2005, Herning. In: Plantekongres 2005, pp. 260-261. ^*

Boelt, B. (2005) Co-existence with GMOs and organic seed production. BioThailand, Bangkok, Thailand, November 2005. In: Book of Abstracts, p. 297. ^*

Boelt, B. (2005) Co-existence with GMOs and organic seed production. Paper handed out at the conference BioThailand 2005, 2-5 November 2005, Bangkok, Thailand. [ Unpublished, ]

Boelt, B. (2005) The concept of the Danish working group on coexistence. Conference on coexistence of GM and non-GM crops, Zürich, June 9 and 10, 2005. In: Summary Coexistence Zürich June 2005, pp. 34-36. ^**

Boelt, B. (2005) Sameksistens. In: Nye GM-planter - ny debat, pp. 54-57. ^**

Boelt, B. (2004) Biosafety data improving the regulation of Co-existence. 8th International Symposium on the Biosafety of Genetically Modified Organisms, Montpellier, France, September 26-30, 2004. In: 8th International Symposium on the Biosafety of Genetically Modified Organisms, pp. 195-199. ^*

Boelt, B. (2004) Co-existence with GMOs and organic seed production. Towards a European Action Plan for Organic Farming. European Hearing on Organic Food and Farming, Brussels, 22 January 2004. In: European Hearing on Organic Food and Farming. Towards a European Action Plan, p. 297. ^*

Boelt, B. (2002) Intercropping as solution for organic grass seed production? 1st International symposium on organic seed production and plant breeding, Berlin, 21st and 22nd November 2002. In: Organic Seed Production and Plant Breeding - strategies, problems and perspectives. [ In Press , 2002]

Boelt, B. (2002) Legume seed production and research in Europe. Canadian Alfalfa and Forage Seed Conference 2002, Winnipeg, Manitoba, Canada, 20-22 January 2002. In: Forage Seed, 9 (1), pp. 33-34.

Boelt, B. (2001) Afgræsning af frøafgrøder med får. Dansk Frøavl, 8, p. 140.

Boelt, B. (2000) Samdyrkning af græs og kløver. Dansk Frøavl, 9, pp. 150-151.

Boelt, B. and Deleuran, L.C. (2005) Coexistence between genetically modified, conventional and organic crops. Availability of organically produced seed of varieties adapted to organic production systems. 15th IFOAM Organic World Congress, Adelaide, South Australia, 20-23 September 2005. In: Congress Handbook of 15th IFOAM Organic World Congress, IFOAM Abstracts, p. 23.

Boelt, B. and Deleuran, L.C. (2005) Økologiske grønsagsfrø - Økologisk produktion af grønsagsfrø i tunnel. Frøavleren (2), p. 30.

Boelt, B. and Deleuran, L.C. (2002) Frøgræs på rækker kan høstes i flere år. Agrologisk Tidsskrift, 3, pp. 16-17. ^**

Boelt, B. and Deleuran, L.C. (2000) Organic forage seed production. IFOAM 2000 - The World Grows Organic, Basel, Switzerland, 28-31 August 2000. In: Proceedings 13th International IFOAM Scientific Conference, p. 228.

Boelt, B.; Deleuran, L.C. and Jensen, A.M.D. (2005) Havefrø i tunneler. Plantekongres 2005, Herning. In: Plantekongres 2005, pp. 270-271. ^*

Boelt, B.; Deleuran, L.C. and Phelps, B. (2005) GM organisms threaten organic systems: towards sustainability, coexistence and organic seed. 15th IFOAM Organic World Congress, Adelaide, South Australia, 20-23 September 2005. In: Congress Handbook of 15th IFOAM Organic World Congress, Workshop Abstracts, p. 21.

Boelt, B. and Hansen, L.M. (2006) Dyrkning af hvidkløver til frø. [White clover seed production.] NJF seminar 395 Herbage Seed Production, Danish Institute of Agricultural Sciences, Research Centre Flakkebjerg, 4200 Slagelse, Denmark, 12-14 June 2006. ^*

Boelt, Birte (2004) Co-existence of Organic and GM Agriculture. First World Conference on Organic Seed: Challenges and Opportunities for Organic Agriculture and the Seed Industry, FAO Headquarters, Rome, Italy, July 5-7, 2004.

Boelt, Birte (2003) Økologisk produktion af grønsagsfrø i tunneller. Økologisk Jordbrug. ^*

Boelt, Birte (2003) Produktion af økologisk hvidkløverfrø. Økologisk Jordbrug.

Boelt, Birte (2003) Co-existence of genetically modified crops with conventional and organic crops. NJF's 22nd Congress, Nordic Agriculture in Global Perspective, Turku, Finland, 1-4 July 2003. ^**

Boelt, Birte (2003) Fåreafgræsning af græsfrøafgrøder. Frøavleren. [ In Press , 2003]

Boelt, Birte (2003) Frøproduktion af efter- og grøngødningsafgrøder. Tidsskrift for Frøavl, 1, pp. 7-9.

Boelt, Birte (2003) Organic forage seed production. Fifth International Herbage Seed Conference: Herbage Seed in the New Millennium - New Markets, New Products, New Opportunities, The University of Queensland Gatton Campus, Queensland, Australia, 23-26 November 2003. In: Loch, Donald S. (Ed.) Proceedings Fifth International Herbage Seed Conference, Gatton, Australia, 23-26 November 2003. Herbage Seeds in the New Millenium - New Markets, New Products, New Opportunities, pp. 43-47.

Boelt, Birte and Gislum, René (2004) What are the limiting factors to seed quality in organic production of grass and clover seed and how to improve yield. First World Conference on Organic Seed: Challenges and Opportunities for Organic Agriculture and the Seed Industry, FAO Headquarters, Rome, Italy, July 5-7, 2004. In: Lammerts van Bueren, Edith; Ranganathan, Radha and Sorensen, Neil (Eds.) Proceedings of the First World Conference on Organic Seed: Challenges and Opportunities for Organic Agriculture and the Seed Industry, pp. 149-153.

Böhm, Herwart (2002) Effect of Soil Separation Technique with Integrated Catch Crops and Manure on Yield and Quality of Potatoes in Organic Farming. 15th Triennial Conference of the European Association for Potato Research, Hamburg, Germany, 14-19 July 2002. In: Wenzel, Gerhard and Wulfert, Ingrid (Eds.) Potatoas Today and Tomorrow: Abstracts of Papers and Posters, European Association for Potato Research (EAPR), p. 209.

Borgen, Anders (2002) Control of seed borne diseases in organic cereals and legumes. The 4th ISTA - PDC seed health symposium: Healthy seeds, the asis for sustainable farming, Wageningen, The Netherlands, 29th April-1th May 2002. In: Proceedings of The 4th ISTA - PDC seed health symposium: Healthy seeds, the basis for sustainable farming, ISTA, p. 18.

Brunner, Thomas; Nowack, Karin; Tamm, Lucius; Tappeser, Beatrix; Eckelkamp, Claudia; Weber, Barbara; Köchlin, Florianne and Vogel, Benno (1999) Zukunftsmodell Schweiz - eine Landwirtschaft ohne Gentechnik? [A Future Model for Switzerland - Agriculture without GM Crops.] Blauen Institut.

Bruun, Sander and Jensen, Lars Stoumann (2004) Simulations of the effects of application of composted and anaerobically digested municipal waste on leaching of nitrogen, denitrification and soil C storage with the agroecosystem model Dasiy. [ Unpublished, ] ^*

Bugge Henriksen, Christian (2003) Alternativ til pløjning - Erfaringer med kamme som alternativ til pløjning. [Alternative to ploughing - Experiences with ridges as an alternative to ploughing.] In: Økologisk Jordbrug, April 2003, p. 6.

Bugge Henriksen, Christian (2000) Er kamme et alternativ til pløjning? Det Kgl. Danske Landhusholdningsselskabs Akademiråds efterårsseminar, Foulum, Denmark, November 8. 2000.

Bugge Henriksen, Christian; Rasmussen, Jesper and Søgaard, Carsten (2005) Kemink subsoiling before and after planting. Soil & Tillage Research, 80, pp. 59-68. ^*

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Cederberg, C; Wivstad, M; Bergkvist, P; Mattsson, B and Ivarsson, K (2005) Hållbart växtskydd. Analys av olika strategier för att minska riskerna med kemiska växtskyddsmedel. [Sustainable crop protection. Analyses of different strategies to reduce risks of pesticide use.] Rapport MAT21, 6.

Cormack, Dr W F (1998) Organic Arable Systems at ADAS Terrington OF0112. [ Unpublished, ]

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Daniel, Götz (2000) Die ökologische Baumschulwirtschaft: Praxis der ökologischen Gehölzproduktion und Zierpflanzengärtnerei - eine Bestandsaufnahme [Organic tree nursery: practice of organic production of small wood and organic ornamental horticulture]. SÖL-Sonderausgabe, 79. Stiftung Ökologie & Landbau, Bad Dürkheim.

David, C. (2006) Adapting precision farming principles to organic crop production. Joint Organic Congress, Odense, Denmark, 30-31 May.

Deleuran, L.C. and Boelt, B. (2006) Establishment Techniques in Grass Seed Production of Perennial Ryegrass. [ Submitted , 2006] ^*

Deleuran, L.C. and Boelt, B. (2006) Organic carrot seed production in tunnels. [ Submitted , 2006]

Deleuran, L.C. and Boelt, B. (2005) Seed to seed - strenghtening the agricultural production in rural communities. 15th IFOAM Organic World Congress, Adelaide, South Australia, 20-23 September 2005. In: Congress Handbook of 15th IFOAM Organic World Congress, IFOAM Abstracts, p. 39.

Deleuran, L.C. and Boelt, B. (2000) Utilization of forage cuts in organic grass seed production. EGF 2000 Grassland Farming. Balancing environmental and economic demands, Aalborg, Denmark, 22-25 May 2000. In: Proceedings of the 18th General Meeting of the European Grassland Federation, pp. 552-554.

Deleuran, L.C.; Gislum, R. and Boelt, B. (2006) Producing seeds of festulolium – a new component in forage mixtures. [ Submitted , 2006]

Deleuran, Lise C. and Boelt, Birte (2002) Tunnelproduktion af gulerodsfrø. [Carrot seed production in tunnels.] Grøn Viden.

Driouech, Noureddin (2008) Annual self-reseeding legumes and their application into mediterranean cropping systems. [Légumineuses annuelles d'autoressemis et leur application dans les systèmes culturels méditerranéens.] Thesis, University of Tuscia, Viterbo, Vegetable Production.

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Elmholt, S. and Holmstrup, M. (2003) Livet i jorden. In: Holmstrup, M. (Ed.) Økologisk landbrug og naturen - gør økologisk landbrug en forskel for natur og miljø?, Gads Forlag, chapter 2, pp. 21-31.

Elmholt, Susanne (2003) Ecology of the ochratoxin A producing Penicillium verrucosum: Occurrence in field soil and grain with special attention to farming system and on-farm drying practices. Biological Agriculture and Horticulture, 20, pp. 311-337. ^*

Elmholt, Susanne and Haase, Maiken (2003) Giftige svampe i tørringsanlæg. In: Økologisk Jordbrug, April 2003, p. 13. Økologisk Landsforening.

Elmholt, Susanne; Haase, Maiken S. and Kristensen, Erik F. (2003) Uhensigtsmæssig kornhåndtering kan give store ochratoksin forekomster - risikoen kan bl.a. forebygges ved tromletørring af kornet. Online at <http://www.foejo.dk/enyt2/enyt/aug03/myco.html>, August 2003. Accessed 21. August 2003.

Elmholt, Susanne; Munkholm, Lars J.; Debosz, Kasia and Schjønning, Per (2000) Biotic and abiotic binding and bonding mechanisms in soils with long-term differences in management. Soil Stresses, Quality and Care, Aas, Norway, 10-12 April 2000. In: Elmholt, Susanne; Stenberg, Bo; Grønlund, Arne and Nuutinen, V. (Eds.) DIAS report, Danish Institute of Agricultural Sciences, 38, pp. 53-62. ^*

Elmholt, Susanne; Stenberg, Bo; Grønlund, Arne and nuutinen, Visa (2000) Soil Stresses, Quality and Care. Proceedings of Soil Stresses, Quality and Care. NJF Seminar 310, Ås, Norway, 10-12 April 2000. Danish Institute of Agricultural Research. ^*

Entz, Martin; Welsh, Cathy; Tenuta, Mario; Chen, Yu Ying; Nelson, Alison and Froese, Jane (2007) Assessment of selected soil parameters in a long-term Western Canadian organic field experiment. 3rd QLIF Congress: Improving Sustainability in Organic and Low Input Food Production Systems, University of Hohenheim, Germany, March 20-23, 2007.

Eriksen, J. and Vinther, F.P. (2003) Nitrate leaching and N2-fixation in grasslands of different composition, age and management. 12th N workshop "Controlling N Flows and Losses", University of Exeter, Devon, UK, 21st - 24th September, 2003. In: Abstracts for the 12th N workshop "Controlling N Flows and Losses", IGER - Institute of Grassland and Environmental Research, North Wyke, Okehampton, Devon, EX20 2SB, UK.

Eyhorn, Frank; Ratter, Saro G. and Ramakrishnan, Mahesh (2005) Organic Cotton Crop Guide - A manual for practitioners in the tropics. Research Institute of Organic Agriculture (FibL), Frick, Switzerland.

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Fliessbach, Andreas; Mäder, Paul and Niggli, Urs (2000) Mineralization and microbial assimilation of 14C-labeled straw in soils of organic and conventional agricultural systems. Soil Biology & Biochemistry, 32, pp. 1131-1139.

Fruekilde, Anne Mette and Bjørn, Gitte (2003) Mindre sygdom i økologisk dyrkede kepaløg. [Less diseases in oganically grown onions.] In: Forskningsnytt om økologisk landbruk i Norden, 2003, pp. 16-17.

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Gislum, R. and Boelt, B. (2005) Intercropped green manure legumes in perennial ryegrass (Lolium perenne L.) for organic grass seed production. 15th IFOAM Organic World Congress, Adelaide, South Australia, 20-23 September 2005. In: Congress Handbook of 15th IFOAM Organic World Congress, IFOAM Abstracts, p. 51.

Gislum, R.; Boelt, B. and Jensen, E.S. (2001) Grøngødningsafgrøder kan medvirke til et højt frøudbytte i økologisk dyrket almindelig rajgræs. Forskningsnytt om økologisk landbrug i Norden, 5, pp. 4-5.

Gruber, H.; Ziesemer, A. and Annen, T. (2001) Wirtschaftlichkeit im ökologischen Marktfruchtbau in Mecklenburg-Vorpommern. [Economics of organic cash cropping in Mecklenburg-Vorpommern.] Online at <http://www.landwirtschaft-mv.de/oekowirt.mv>, January 2001. Accessed 2. September 2003; Website "Informationsdienst Landwirtschaft MV ".

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Haas, Guido and Friedt, Wolfgang (1990) Ziele und Möglichkeiten der Züchtung nährstoffeffizienter Nutzpflanzen. Arbeitstagung der "Arbeitsgemeinschaft der Saatzuchtleiter" innerhalb der Vereinigung österr. Pflanzenzüchter, Bundesanstalt für alpenländ. Landwirtschaft Gumpenstein, Irdning, Österreich, 20. - 22.11.1990. In: Arbeitstagung der "Arbeitsgemeinschaft der Saatzuchtleiter" innerhalb der Vereinigung österr. Pflanzenzüchter, 20. - 22.11.1990, Bundesanstalt für alpenländ. Landwirtschaft Gumpenstein, Irdning, Österreich, Bundesanstalt für alpenländ. Landwirtschaft Gumpenstein, Irdning, Österreich, pp. 21-37.

Hampl, Dr. Ulrich (2005) 10 Jahre differenzierte Grundbodenbearbeitung im Ökologischen Landbau - Methoden und Ergebnisse. [10 years specified soil management in organic agriculture - methods and results.] 8. Wissenschaftstagung Ökologischer Landbau - Ende der Nische, Kassel, 01.03.2005 - 04.03.2005. In: Heß, J and Rahmann, G (Eds.) Ende der Nische, Beiträge zur 8. Wissenschaftstagung Ökologischer Landbau, kassel university press GmbH, Kassel.

Hansen, L.M. (2002) Økologisk hvidkløverdyrkning, kløversnudebillens betydning og bekæmpelsesmuligheder. NJF seminar nr. 341, Grass and clover seed production, Sweden, 24-26 June 2002. In: NJF-rapport nr. 341, pp. 87-93.

Hansen, L.M. (2002) Snudebillerne er kommet. Dansk Frøavl, 85, p. 6.

Hansen, L.M. and Boelt, B. (2006) Så er kløversnudebillerne her igen. Frøavleren, Juni 2006, p. 4.

Hansen, L.M. and Boelt, B. (2002) Hvordan dyrker jeg økologisk hvidkløver - uden snudebillerne stjæler udbyttet? In: Økologisk Rådgivning, 2002, pp. 32-33. ^*

Hansen, Lars Monrad and Boelt, Birte (2004) Sen afpudsning begrænser angreb af kløversnudebiller. FØJOenyt (3).

Hansen, Lars Monrad and Boelt, Birte (2004) Organic clover seed production: Does intercropping with plant species with at strong scent distract the clover seed weevil and increase seed yield? First World Conference on Organic Seed: Challenges and Opportunities for Organic Agriculture and the Seed Industry, FAO Headquarters, Rome, Italy, July 5-7, 2004. In: Lammerts van Bueren, Edith; Ranganathan, Radha and Sorensen, Neil (Eds.) Proceedings of the First World Conference on Organic Seed: Challenges and Opportunities for Organic Agriculture and the Seed Industry, p. 180.

Hansen, Preben Klarskov; Rasmussen, Ilse A.; Kristensen, Kristian and Willas, Jakob (2004) Forslag til forsøgsdesign for WP1 2004 og 2005 på Forskningscenter Flakkebjerg. [Proporsal of experimental desing for WP1 in 2004 and 2005 at Research Centre Flakkebjerg.] [ Unpublished, ]

Hauggaard-Nielsen, Henrik; Thomsen, Mette Hedegaard and Jensen, Erik Steen (2009) Why diversify annual biomass production for energy – exemplified by green house gas emissions from the Danish IBUS bioethanol production concept. Proceedings of NJF Seminar 405: Production and utilization of crops for energy, Vilnius, Lithuania, 25-26 September, 2007. NJF General Secretariat, Stockholm, Sweden. ISBN 1653-2015

Henriksen, C.B. and Rasmussen, J. (2002) Kamdyrkning (drill) – et økologisk alternativ. Den nasjonale kongres for økologisk jordbrug, Hamar, Norway, 21/2-22/2 2002. In: Cottis, T. (Ed.) Den nasjonale kongres for økologisk jordbrug, Rapport nr. 3 - 2002, Høgskolen i Hedmark, pp. 61-68.

Henriksen, Christian Bugge (2005) Positiv effekt af kamdyrkning. [Positive effect of ridge planting.] Økologisk Jordbrug, 25 (238), p. 4.

Henriksen, Christian Bugge (2003) Erfaringer med kamme som alternativ til pløjning. [Experiences with ridging as an alternative to ploughing.] FØJOenyt.

Henriksen, Christian Bugge; Rasmussen, Jesper and Mølgaard, Jens Peter (2005) The effect of timing of ridging on soil inorganic nitrogen and potato tuber yield and quality. Soil & Tillage Research. [ Submitted , 2005]

Høgh-Jensen, Henning; Loges, Ralf; Jensen, Erik Steen; Jørgensen, Finn V. and Vinther, Finn P. (2003) Empirical model for quantification of symbiotic nitrogen fixation in leguminous crops. Agricultural Systems. [ Unpublished, ] ^*

Høgh-Jensen, Dr Henning and Pedersen, Morten B. (2003) Morphological plasticity by crop plants and their potassium use efficiency. Journal of Plant Nutrition, 26 (5), pp. 969-984.

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Jensen, A.M.D. (2003) Seed quality - health status. Frøsymposium, Tune, 18-19. marts 2003.

Jonsson, Simon (2002) Crop yields in organic and conventional production – studies from the Öjebyn project. UK Organic Research 2002 Conference, Aberystwyth, 26-28 March 2002. In: Powell, Jane and et al., (Eds.) Proceedings of the UK Organic Research 2002 Conference, Organic Centre Wales, Institute of Rural Studies, University of Wales Aberystwyth, pp. 43-46.

Jung, V.; Loges, R.; Henriksen, J.; Grevsen, K.; Christensen, L. P.; Kristiansen, K.; Rimbach, G.; Schwarz, K.; Kawiani, R.; Taube, F. and Wolfram, S. (2007) Pflanzen für die Gesundheit-Vorstellung eines neuen interdisziplinären Forschungsprojektes zum ökologischen Anbau von Arzneipflanzen. [Plants for health- Presentation of a new interdisciplinary project concerning the organic cultivation of medicinal plants.] Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Stuttgart, Deutschland, 20.-23.03.2007.

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Kahiluoto, Helena (2000) A systems approach to the management of arbuscular mycorrhiza: Bioassay and study of the impact of phosphorus supply. Thesis, University of Helsinki, Department of Applied Biology.

Kay, B.D. and Munkholm, L.J. (2004) Management-induced Soil Structure Degradation: Organic Matter Depletion and Tillage. In: Schjønning, P.; Elmholt, S. and Christensen, B.T. (Eds.) Managing Soil Quality: Challenges in Modern Agriculture, CABI Publishing, Wallingford, UK, chapter 11, pp. 185-197. [ In Press , 2004] ^**

Kildested, Lars (2005) Vilde merudbytter til forbavsede forskere. In: Agrologisk, January 2005, pp. 6-8. Dansk Agrar Forlag.

Kimmins, F.; Vaarst, M.; Ebong, C.; Halberg, N.; Hindhede, J.; Albright, K. and Ward, A. (2004) Technological options that respond to demands and market opportunities with focus on crops and livestock. Uganda J. Agric. Sci., 9 (1), pp. 855-870.

Knudsen, Marie Trydeman; Hauggaard-Nielsen, Henrik and Jensen, Erik Steen (2004) Cereal-grain legume intercropping in organic farming - a Danish survey. VIII ESA Congress: European agriculture in a global context, Copenhagen, 11.-15. July 2004. In: Jacobsen, Sven-Erik; Jensen, C. R. and Porter, J. R. (Eds.) VIII ESA Congress: Book of proceedings, The Royal Veterinary and Agricultural University, Dept. of Agricultural Sciences.

Kochbati, Hela (2003) Effects of compost tea and organic fertilizers on organic potato. [Effets de compost et des engrais organique sur la pomme de terre.] Thesis, IAMB Mediterranean Agronomic Institute of Bari, Organic Agriculture. [ Unpublished, ]

Köhler, Brigitte and Kolbe, Hartmut (2007) Programm BEFU, Teil Ökologischer Landbau: Verfahrensbeschreibung und PC-Anleitung zu Methoden der Bilanzierung und Düngungsbemessung.

Kolbe, Hartmut (2008) Fruchtfolgegrundsätze im Ökologischen Landbau. Working paper, Abteilung Pflanzliche Erzeugung, Saechsisches Landesamt fuer Umwelt, Landwirtschaft und Geologie.

Köppen, Detloff (2001) Stand und Perspektiven des ökologischen Landbaus in den mittel- und osteuropäischen Ländern. 113. VDLUFA-Kongress, Berlin, 17. bis 21. September 2001. In: Brod, Hans-Georg (Ed.) Landwirtschaft in mittel- und osteuropäischen Ländern - Potenziale und deren Nutzung,, 57.

Köppen, Detloff (2000) Agrarökologische Folgerungen für einen umweltgerechten Pflanzenbau: Leistungen des ökologischen Landbaus – ein Betriebsvergleich. unpublished. [ Unpublished, ]

L

Langer, Vibeke (2002) Changes in farm structure following conversion to organic farming in Denmark. American Journal of Alternative Agriculture, 17 (2), pp. 75-81.

Langer, Vibeke; Dalgaard, Tommy; Heidmann, Tove; Elmegaard, Niels; Mogensen, Lisbeth; Odderskær, Peter and Hasler, Berit (2002) Omlægning til økologisk jordbrug i et lokalområde. Scenarier for natur miljø og produktion. [Conversion to organic farming in a local area. Scenarios for nature, encviroment and production.] DARCOF Reports, 12.

Lennartsson, Dr Margi (2000) Conversion to organic field vegetable production OF0126T. [ Unpublished, ]

Little, Tony (2002) Some reasons for non-conversion of horticultural producers in Wales. [ Unpublished, ]

M

Mejnertsen, Peter (2004) Benyt efterafgrøder i økologisk jordbrug. [Use catch crops in organic farming.] Online at <http://www.lr.dk/planteavl/diverse/oe_vaerk_efterafgr.htm>, September 2004. Landscentret, Planteavl, under Dansk Landbrugsrådgivning er med til at formidle resultater fra forskning og forsøg på de økologiske værkstedsarealer under FØJO. På hjemmesiden samler vi artikler om udvalgte temaer fra forsøgene, og forsøger at give et overblik over hvilke problemer og emner forskerne arbejder med.

Melander, Senior scientist Bo (2003) Visit to Australia and New Zealand. ^*

Migliorini, Paola; Tavoletti, Stefano; Moschini, Valentina and Iommarini, Linda (2008) Performance of grain legume crops in organic farms of central Italy. Cultivating the Future Based on Science: 2nd Conference of the International Society of Organic Agriculture Research ISOFAR, Modena, Italy, June 18-20, 2008.

Müller, Torsten; Thorup-Kristensen, Kristian; Magid, Jakob; Jensen, Lars Stoumann and Hansen, Søren (2006) Catch Crops in Organic Farming Systems without Livestock Husbandry - Simulations with the DAISY model. Ecological Modelling, 191, pp. 538-544. ^**

Müller, Dr. Torsten; Magid, Dr. Jakob; Jensen, Dr. Lars Stoumann; Nielsen, Dr. Niels Erik and Thorup-Kristensen, Dr. Kristian (2002) Catch Crops in Organic Farming Systems without Livestock Husbandry - Model Simulations. 17th World Congress of Soil Science, Bangkok, Thailand, 13-20 August 2002. In: Kheoruenromme, Dr. Irb (Ed.) Conference Transactions, International Union of Soil Science, 830.1-830.9. ^**

Munkholm, L.J. and Schjønning, P. (2004) Structural vulnerability of a sandy loam exposed to intensive tillage and traffic in wet conditions. Soil & Tillage Research (79), pp. 79-85. [ Unpublished, ] ^*

Munkholm, L.J. and Schjønning, P. (2003) Compacted subsoils in organic farming: Mechanical loosening and the risk of recompaction. Online at <http://www.darcof.dk/enews/sep03/soil.html>, September 2003. Accessed 23. September 2004.

Munkholm, L.J. and Schjønning, P. (2003) Mechanical subsoiling: Mitigation of recompaction by light traffic and on-land ploughing. 16th International Conference of the International Soil Tillage Research Organization, Brisbane, Australia, July 2003. In: Proceedings, 16th International Conference of the International Soil Tillage Research Organization (CD-ROM).

Munkholm, L.J.; Schjønning, P.; Jørgensen, M.H. and Thorup-Kristensen, K. (2005) Mitigation of subsoil recompaction by light traffic and on-land ploughing. II: Root and yield response. Soil & Tillage Research (80), pp. 159-170.

Munkholm, L.J.; Schjønning, P. and Rasmussen, K.J. (1998) Non-inverting soil tillage as a means of optimising soil tilth. [Ikke-vendende jordbearbejdning til sikring af en bekvem jord.] Soil tillage and biology, Agricultural University of Norway, Ås, Norway, 8-10 June 1998. In: Børresen, T. (Ed.) NJF-UTREDNING/RAPPORT, 124, pp. 26-33.

Munkholm, L.J.; Schjønning, P.; Rasmussen, K.J. and Tanderup, K. (2003) Spatial and temporal effects of direct drilling on soil structure in the seedling environment. Soil and Tillage Research, 71 (2), pp. 163-173.

Munkholm, L.J.; Schjønning, P. and Rüegg, K. (2005) Mitigation of subsoil recompaction by light traffic and on-land ploughing. I. Soil response. Soil & Tillage Research (80), pp. 149-158.

Munkholm, Lars J. (2002) Soil Fragmentation and Friability. Effects of Soil Water and Soil Management. Thesis, Danish Institute of Agricultural Sciences, Department of Crop Physiology and Soil Science. ^**

Munkholm, Lars J.; Schjønning, Per and Elmholt, Susanne (2002) Soil structure dynamics: Effects of management and water content. Advances in Soil Structure Research workshop, Prince Edward Island, Canada, July 7-9 2002. [ Unpublished, ]

Munkholm, Lars J.; Schjønning, Per and Petersen, Carsten T. (2001) Soil mechanical behaviour of sandy loams in a temperate climate: case studies on long-term effects of fertilization and crop rotation. Soil Use and Management, 17, pp. 269-277. ^**

Mølgaard, Jens Peter (2004) Kamdyrkning af hestebønner. FØJOenyt.

N

Nielsen, G.C.; Hansen, L.M. and Boelt, B. (2005) Snudebiller i hvidkløver til frø.

Nielsen, Dr. Kai Lønne and Thorup-Kristensen, Dr. Kristian (2001) Root Growth and Nitrogen Utilization of a Leek Crop and an Undersown Catch Crop. Plant Nutrition - Food security and sustainability of agro-ecosystems through basic and applied research. In: Horst, Dr. W.J. (Ed.) Plant Nutrition - Food security and sustainability of agro-ecosystems through basic and applied research, Kluwer Academic Publishers, pp. 1010-1011.

O

Olesen, J.E. and Berntsen, J. (2004) Simulating crop production and nitrate leaching losses from organic arable crop production. Online at <http://www.darcof.dk/enews/dec04/simulating.html>, December 2004. Accessed 31 March 2005.

{Project} Zielvorstellungen und Entwicklungsperspektiven für den Ökolandbau aus Naturschutzsicht. [Aims and Perspectives for the Development of Organic Agriculture from the Viewpoint of Nature Conservation.] Project Leader(s): UNSPECIFIED, NABU, Institut Bergenhusen, Institut für Landschaftsökologie und Naturschutz Singen. More information online at <http://www.bundesprogramm-oekolandbau.de/fkz=02OE577>.

P

Paulsen, H. M.; Dahlmann, C. and Pscheidl, M. (2003) Anbau von Ölpflanzen im Mischanbau mit anderen Kulturen im ökologischen Landbau. [Growing oilseeds in mixed culture with other crops in organic farming.] 7. Wissenschaftstagung zum Ökologischen Landbau - Ökologischer Landbau der Zukunft, Universität für Bodenkultur, Wien - Institut für ökologischen Landbau, 24-26 Februar 2003. In: Freyer, Bernhard (Ed.) Ökologischer Landbau der Zukunft - Beiträge zur 7. Wissenschaftstagung zum Ökologischen Landbau, pp. 49-52.

Pedersen, Anders and Thorup-Kristensen, Kristian (2004) Modelling root distribution and nitrogen uptake. International Congress Rhizophere, Perspective and Challenges - A tribute to Lorenz Hiltner, Munich, Germany, 12-17 september 2004. [ Unpublished, ]

Petersen, Anders; Bruun, Sander; Jensen, Dr. Lars Stoumann and Hansen, Dr. Søren (2001) Simulating Soil Organic Matter Transformations with the New Implementation of the Daisy Model. 11th Nitrogen Workshop, Reims, France, 9-12 September 2001. In: Recous, Dr. S. (Ed.) Conference Transactions, INRA.

Petersen, Jens (2002) Konkurrence mellem afgrøde og ukrudt om tilført husdyrgødningskvælstof. 19. Danske Planteværnskonference 2002, Hotel Nyborg Strand, 5. marts 2002. In: DJF-rapport nr. 64 Markbrug, Danmarks JordbrugsForskning, pp. 119-127. ^**

Pommer, G (2000) Anbauverfahren mit Körnerleguminosen im Ökologischen Landbau [Production methods for legume grains in organic agriculture]. SÖL-Berater-Rundbrief (3), pp. 29-36.

R

Rahtola, M. (2009) System learning comparison of organic apple growing in four Nordic-Baltic region countries. Fostering healthy food systems through organic agriculture - focus on Nordic-Baltic region : NJF seminar 422, Tartu, Estonia, 25-27 August 2009. In: Programme, abstracts, list of participants, Nordic Association of Agricultural Scientists, 5 (2).

Rasche, Frank; Widmer, Franco; Mäder, Paul; Gattinger, Andreas and Fließbach, Andreas (2003) Vergleich von Methoden zur Ermittlung der mikrobiellen Diversität in Böden des DOK-Versuches. [Comparison of methods to study microbial diversity in the soils of the DOK trial.] In: Freyer, Bernhard (Ed.) Beiträge zur 7. Wissenschaftstagung zum ökologischen Landbau: Ökologischer Landbau der Zukunft. Wien, 24.-26. Februar 2003., Universität für Bodenkultur, Wien - Institut für Ökologischen Landbau, pp. 447-448.

Rasmussen, I.A.; Holst, N.; Pedersen, L. and Rasmussen, K. (2002) Computer model for simulating the long-term dynamics of annual weeds under different cultivation practices. 5th EWRS Workshop on Physical and Cultural Weed Control, Pisa, Italy, 11.-13. March 2002. In: Barberi, P. and Cloutier, D. (Eds.) Proceedings of the 5th EWRS Workshop on Physical and Cultural Weed Control, pp. 6-13.

Rasmussen, Ilse A. (2005) Økologi med alle midler. In: Økologisk Jordbrug, November 2005, p. 12. Økologisk Landsforening.

Rasmussen, Ilse A. (2003) Sameksistens mellem genetisk modificerede, konventionelle og økologiske afgrøder. FØJO enyt - Nyhedsbrev fra Forskningscenter for Økologisk Jordbrug (3).

Rasmussen, Ilse A. (2002) Nyt fra de økologiske sædskifteforsøg - effekten af økologisk sædskifte begynder at vise sig. In: Økologisk Jordbrug, September 2002, p. 6. Økologisk Landsforening.

Rasmussen, Ilse A. (2001) Sådan kan spildraps måske begrænses. In: Produktion - DLGs Landbrugsmagasin, June 2001. Dansk Landbrugs Grovvareselskab.

Rasmussen, Ilse A.; Askegaard, Margrethe and Olesen, Jørgen E. (1999) Ukrudt i økologiske kornsædskifteforsøg. In: 16. Danske Planteværnskonference, Plantebeskyttelse i økologisk jordbrug, Sygdomme og skadedyr, Danmarks JordbrugsForskning, pp. 17-28.

Rasmussen, Ilse A.; Melander, Bo; Hansen, Preben Klarskov and Holst, Niels (2004) Langsigtet balance i ukrudtsbestanden. [Long-Term balance in the weed population.] Seminar om planteværn, Landbrugsafgrøder, Januar 2004. In: Seminar om Planteværn 2004, Landbrugsafgrøder, Dansk Landbrugsrådgivning, Landcentret, Planteavl, pp. 12-15. ^**

Rasmussen, Ilse A. and Rasmussen, Jesper (2000) Beskidte rækkeafgrøder giver ukrudt i kornet. In: Økologisk Jordbrug, May 2000, p. 14. Økologisk Landsforening.

Raupp, Dr Joachim (2002) Wie die Humusentwicklung langfristig sichern? Ökologie & Landbau (4), pp. 9-11.

RE, GIULIO; VERONA, MARZIA; POSSETTO, DARIO; NICOLA, SILVANA; HOEBERECHTS, JEANET; FONTANA, EMANUELA; ZEPPA, GIUSEPPE; ROLLE, LUCA and SPEGIS, IDA (2005) PROVE DI COLTIVAZIONE BIOLOGICA DELLA PATATA IN AREALI MONTANI. [Experimental trials of organic potato cultivation in mountain areas.] BOLLETTINO DI AGRICOLTURA BIOLOGICA A CURA DEL CRAB (Reference Centre for organic farming) (2), pp. 79-92.

Refsgaard, Karen; Ebbesvik, Martha; Rogneby, Tor Johannes; Rogstad, Berit and Staven, Kjell (2004) ØkologiPlan - Økonomisk planleggingsverktøy for økologisk korn- og kjernebelgvekstdyrking. [EcologyPlan - Economic planning tool for organic grain and legume growing.] Plantemøte Østlandet - 2004. Planteforsk, Hafjell, February 2004. In: Jord- og plantekultur 2004. Grønn kunnskap, Planteforsk (Norwegian Crop Research Institute), 8 (2), pp. 72-85.

Refsgaard, Karen; Rogneby, Thor Johannes; Staven, Kjell; Ebbesvik, Martha; Rogstad, Berit and Knutsen, Heidi (2004) ØkologiPlan – Utvikling av planleggingsverktøy for økologisk korn- og kjernebelgvekstproduksjon. NILF-report, 4.

Rohde, B. (2001) Tjek bestøvningen. Dansk Frøavl (5).

Rohde, B.; Langer, V. and Hansen, L.M. (2000) Økologisk hvidkløver - hvordan kan det lade sig gøre? Dansk Frøavl, 9, pp. 148-149.

Röhricht, Christian; Karte, Tobias and Schubert, Mario (2003) Analyse der ökologischen Produktionsverfahren von Heil- und Gewürzpflanzen in Deutschland. [Analysis of organic production processes of spice and medical plants in Germany.] [ Unpublished, ]

S

Schjønning, P. (2004) The soil quality concept as a tool for exposing values in science and promoting sustainability considerations. 4. International Congress of the European Society for Soil Conservation, Budapest, Hungary, 25-28 May 2004. In: Kertész, A.; Kovács, A.; Csuták, M.; Jakab, G. and Madarász, B. (Eds.) Proceedings of the 4th International Congress of the ESSC, Hungarian Academy of Sciences, Geographical Research Institute, 1112 Budapest, Budaörsi út 45, Hungary, pp. 108-112. ^**

Schjønning, P. (2003) Jordbearbejdning. [Soil tillage (in organic farming).] In: Økologisk Jordbrug, 2003, p. 4. ^*

Schjønning, P.; Jørgensen, M.H.; Olesen, J.E.; Rasmussen, G.; Munkholm, L.J. and Melander, B. (2001) Forsknings- og udviklingsaktiviteter på området reduceret jordbearbejdning. [ Unpublished, ]

Schjønning, P. and Munkholm, L.J. (2004) Organisk stof i jord - hvor meget er nok og hvor lidt er kritisk? Online at <http://www.foejo.dk/enyt2/enyt/april04/ostof.html>, April 2004. Accessed 22. September 2004; FOEJO Website.

Schjønning, P.; Munkholm, L.J. and Elmholt, S. (2004) Soil quality in organic farming - effects of crop rotation, animal manure and soil compaction. EUROSOIL 2004, Freiburg, Germany, 6-10. September 2004.

Schjønning, P.; Munkholm, L.J. and Elmholt, S. (2003) Jordkvalitet og dyrkningsmetoder. [Soil quality and management.] In: Holmstrup, M. (Ed.) Økologisk landbrug og naturen - gør økologisk landbrug en forskel for natur og miljø?, Gads Forlag, chapter 1, pp. 9-19.

Schjønning, P.; Munkholm, L.J.; Elmholt, S.; Debosz, K.; Mikkelsen, G.H. and Trautner, A. (2000) Den danske dyrkningsjords tilstand og kvalitet - konsekvenser af trafik og jordbearbejdning. [The quality of Danish agricultural soils - impact of traffic and tillage.] Landhusholdningsselskabets Efterårsseminar 2000, Forskningscenter Foulum, November 2000. In: Tidsskrift for Landøkonomi, Landhusholdningsselskabet, 4, pp. 293-300. [ Unpublished, ]

Schjønning, P. and Rasmussen, K.J. (2000) Soil strength and soil pore characteristics for direct-drilled and ploughed soils. Soil and Tillage Research, 57 (1-2), pp. 69-82.

{Project} Harmonised and Standardised procedures for evaluation of plant protection products, fertilizers and soil conditioners for use in organic agriculture (Organic Inputs). Project Leader(s): UNSPECIFIED, Reseacrh Institute of Organic Agriculture (FiBL). More information online at <http://www.organicinputs.org/>.

Svanäng, K.; Roempke, G.; Eriksson, G.; Johansson, L-B.; Lund, T.; Karlsson, L.; Öhman, T.; Ihrsén, J.; Pettersson, O.; Eriksson, K. and Jacobsson, C. (2002) Deltagardriven forskning – Växtodlingsgruppen, resultat och utvärdering av arbetet under 1998 till 2001. [Participatory research - the crop production group, results and evaluation of the work during 1998 till 2001.] Ekologiskt lantbruk, 35.

T

Teasdale, John R. and Cavigelli, Michel A. (2008) Performance of Organic Grain Cropping Systems in Long-Term Experiments. Cultivating the Future Based on Science: 2nd Conference of the International Society of Organic Agriculture Research ISOFAR, Modena, Italy, June 18-20, 2008.

Tersbøl, Michael (2004) Udbytte og økonomi i sædskifter – erfaringer fra sædskifteforsøgene. Online at <http://www.lr.dk/planteavl/diverse/oekovaerk_udbyt_okonomi.htm>, June 2004. Landscentret, Planteavl, under Dansk Landbrugsrådgivning er med til at formidle resultater fra forskning og forsøg på de økologiske værkstedsarealer under FØJO. På hjemmesiden samler vi artikler om udvalgte temaer fra forsøgene, og forsøger at give et overblik over hvilke problemer og emner forskerne arbejder med.

Tersbøl, Michael and Andreasen, Claus Bo (2002) Økologisk planteproduktion. Resultater af forskning i FØJO I. FØJO-rapport, 18.

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>, February 2007. 27. februar 2007.

Thorup-Kristensen, Kristian (2005) Kapitel 1: Grøngødning og efterafgrøder, Kapitel 2: Grøngødningens biologi, og Kapitel 3: Grøngødningens virkninger. In: Bjerg, Anna-Christa (Ed.) Grøngødning, efterafgrøder og dækafgrøder, Landbrugsforlaget, chapter 1-2-3, pp. 1-37.

Thorup-Kristensen, Kristian (2004) Crop cover improves the nitrogen status in vegetable crop rotations. DARCOFenews (1).

Thorup-Kristensen, Kristian (2004) Forslag til øget kvælstofeffekt af efterafgrøder ved optimeret artsvalg, management og placering. In: Jørgensen, Uffe (Ed.) Forberedelse af Vandmiljøplan III. Rapport fra Kvælstofgruppen (F10). Forbedret kvælstofudnyttelse i mark og effekt på kvælstoftab, chapter 4.5, pp. 100-110. ^*

Thorup-Kristensen, Kristian (2004) Ny lovende efterafgrøde. [New promising catch crop.] In: Økologisk Jordbrug, 2004, p. 10.

Thorup-Kristensen, Kristian (2004) Plantedække øger udnyttelsen af N i økologiske grønsager. [Crop cover improves the nitrogen status in vegetable crop rotations.] FØJOenyt.

Thorup-Kristensen, Kristian (2003) Efterafgrøder med mange formål. In: Økologisk Jordbrug, 2003, p. 6.

Thorup-Kristensen, Kristian (2002) Grønsagssædskifte uden tilførsel af gødning. In: Økologisk Jordbrug, 2002, p. 6. Økologisk Jordbrug.

Thorup-Kristensen, Kristian (2002) Six years results from an organic vegetable crop rotation aimed at self-sufficiency in nitrogen. XXVIth International Horticultural Congress & Exhibition (IHC2002), Toronto, Canada, Agust 2002.

Thorup-Kristensen, Kristian (2002) Viden om rodvækst er nyttig. In: Økologisk Jordbrug, 2002, p. 14.

Thorup-Kristensen, Kristian (1999) An organic vegetable crop rotation aimed at self-sufficiency in nitrogen. Designing and testing crop rotations for organic farming, Borris, Denmark, June 1999. In: Olesen, J.E.; Eltun, R.; Goulding, M.J.; Jensen, E.S. and Köpke, U. (Eds.) Designing and testing crop rotations for organic farming, DARCOF (1), pp. 133-140.

Thorup-Kristensen, Kristian; Magid, Jacob and Jensen, Lars Stoumann (2003) Catch crops and green manures as biological tools in nitrogen management in temperate zones. In: Advances in Agronomy, Elsevier, pp. 227-302. [ In Press , 2003] ^*

Thorup-Kristensen, Kristian and Tersbøl, Michael (2005) Grøngødning og efterafgrøder. Landbrugsforlaget.

Thorup-Kristensen, Dr. Kristian (1999) Økologisk grønsagsproduktion uden kvælstofimport. [Organic vegetable production without import of nitrogen.] In: Forskningsnytt om økologisk landbruk i Norden, 1999, pp. 8-9.

Topp, C F E; Watson, C A; Rees, R M and Stockdale, E A (2006) Indicator systems - resource use in organic systems. What can organic farming deliver? COR 2006, Heriot-Watt University, Edinburgh, 18-20 September 2006. 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.

U

Urbatzka, MSC Peer; Graß, Dr. Rüdiger and Schüler, Dr. Christian (2005) Nutzung pflanzengenetischer Ressourcen für den ökologischen Landbau am Beispiel von Wintererbsen. [Use of plant genetic resources in organic agriculture - the example of winter pea.] 8. Wissenschaftstagung zum ökologischen Landbau, Kassel, 01.03.2005 - 04.03. 2005. In: Heß, J and Rahmann, G (Eds.) Ende der Nische, Beiträge zur 8. Wissenschaftstagung Ökologischer Landbau, kassel university press GmbH, Kassel.

V

Vinther, F.P. (2003) Symbiotisk N2 fiksering i kløvergræs. [Symbiotic N2 fixation in grass-clover.] Online at <http://www.foejo.dk/enyt2/enyt/juni03/nstof.html>, June 2003. June 2003, "DARCOF e-news".

Vinther, F.P. (2003) Kvælstof fra luften. [Nitrogen from the air.] In: Økologisk Jordbrug, 2003, p. 6.

Vinther, F.P.; Hansen, E.M. and Olesen, J.E. (2003) Grass-clover and catch crops - How does grass-clover and catch crops affect crop performance and soil microbiology in unfertilised organic crop rotations? Online at <http://www.darcof.dk/enews/sep03/biomod.html>, September 2003. September 2003, "DARCOF e-news".

Vinther, F.P.; Hansen, E.M. and Olesen, J.E. (2002) Relationship between crop rotation and microbial biomass and activity including field CO2 and N2O fluxes and N mineralization. NJF seminar no: 342 "Agricultural soils and greenhouse gasses in cool-temperate climate", Reykholt, Iceland, 31. july - 3. august 2002. In: Abstracts of NJF seminar no: 342 "Agricultural soils and greenhouse gasses in cool-temperate climate", p. 12.

Vinther, F.P. and Laier, A.Aa. (2001) Ærter som kvælstofsamler i vintersæd. [Peas collecting nitrogen in winter cereals.] In: Landsbladet, December 2001. ^**

W

Watson, C.A.; Atkinson, D.; Gosling, P.; Jackson, L.R. and Rayns, F.W. (2002) Managing soil fertility in organic farming systems. Soil Use and Management, 18, pp. 239-247.

Wivstad, Maria and Naetterlund, Henrik (2008) Learning in context – improved nutrient management in arable cropping systems through participatory research. Cultivating the Future Based on Science: 2nd Conference of the International Society of Organic Agriculture Research ISOFAR, Modena, Italy, June 18-20, 2008.

Woodward, Lawrence (2004) Elm Farm Research Centre Bulletin No. 75.

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