Subject Area: Farm nutrient management

• Subject Areas (7224)
  • Farming Systems (813)
    • Farm nutrient management (160)

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Number of eprints: 160.

Rahmann, Gerold, Eds. (2007) Ressortforschung für den Ökologischen Landbau 2007 [Organic Farming Research of the Federal Ministry of Nutrition, Agriculture and Consumer Protection 2007]. Proceedings of Statusseminar 2007, Detmold, 5. Oktober 2007. Landbauforschung Völkenrode - Sonderheft no. 314. Bundesforschungsanstalt für Landwirtschaft.

Kuratorium für Technik und Bauwesen in der Landwirtschaft, KTBL, Eds. (2006) Energiepflanzen. KTBL Darmstadt.

{FACILITY} ADAS: Field-scale study of sustainability of stockless organic arable production.

{PROJECT} Anbau von Mischkulturen mit Ölpflanzen zur Verbesserung der Flächenproduktivität im ökologischen Landbau - Nährstoffaufnahme, Unkrautunterdrückung, Schaderregerbefall und Produktqualitäten. Runs 01 March 2004 - 31 October 2006. Project leader(s): Paulsen, Dr. Hans Marten, Bundesforschungsanstalt für Landwirtschaft. More information online at <http://www.bundesprogramm-oekolandbau.de/projekt_03oe113.html>.

{PROJECT} Användning av blåmussla som foder- och näringstillskott med relevans till förekomst av miljögifter [The use of blue mussels as nutritious animal-feed with respect to its content of environmental contaminants]. Runs 01 January 2006 - 31 December 2006. Project leader(s): Lindhal, Odd, The Royal Swedish Academy of Sciences.

{PROJECT} Assessment of relative nitrate losses from Organic and Convetional farming systems, based on recent measurements. Runs 01 March 1997 - 31 March 1997. Project leader(s): Unspecified, , ADAS.

{PROJECT} Ökobilanz und Wirtschaftlichkeit ökologisch wirtschaftender Milchviehbetriebe mit unterschiedlicher Fütterungsintensität und Produktionsstruktur [Life cycle assessment and profitability of organic dairy farms with different feeding intensity and production structure]. Runs 01 January 2007 - 29 February 2008. Project leader(s): Köpke, Prof.Dr. U., Universität Bonn.

{PROJECT} Dikväveoxidemissioner från ekologisk odling styrda av kväveeffektiviteten i systemet [Nitrous oxide emissions from organic farming driven by nitrogen use efficiency]. Runs 01 July 2004 - 30 June 2007. Project leader(s): Klemedtsson, Leif, Göteborg University.

{FACILITY} DS-FELT APELSVOLL: Farming systems comparison study, Bioforsk Arable Crops Division, Apelsvoll. More information online at <http://www.bioforsk.no/ViewPPP.aspx?view=project&id=16&viewLanguage=NorwegianBokmaal>.

{PROJECT} Förfruktens betydelse för växtpatogeners dynamik, styrning av växtnäring och kvalitet, i maltkorn [The effects of the preceding crop on plant disease dynamics, control of nutrients and quality, in malting barley]. Runs 01 January 2003 - 01 January 2006. Project leader(s): Bergkvist, Göran, Swedish University of Agricultural Sciences, SLU.

{PROJECT} Fjäderfägödsel: innehåll av växtnäring och spårelement samt utveckling av provtagningsmetodik [Poultry manure: content of plant nutrients and trace elements and development of the sampling procedure]. Runs 01 January 2003 - 31 December 2005. Project leader(s): Salomon, Eva, Swedish Institute of Agricultural and Environmental Engineering, JTI.

{PROJECT} Kaliumdynamiken i ekologisk växtodling med tonvikt på vall [The dynamics of potassium in organic crop production, with emphasis on leys]. Runs 01 January 2002 - 31 December 2004. Project leader(s): Öborn, Ingrid, Swedish University of Agricultural Sciences, SLU.

{PROJECT} Kvalitetsbrödsäd, hög proteinhalt genom kombination av förfrukt och tilläggsgiva av gödselmedel [Organic production of quality wheat ]. Runs 01 January 2002 - 31 December 2004. Project leader(s): Wallenhammar, Ann-Charlotte, The Rural Economy and Agricultural Societies. More information online at <http://ekoforsk.slu.se/en>.

{PROJECT} Kvävefixering i rödklöverrika vallar, kvantifiering av kväve i hela växten samt kväve utsöndrat från rötter [Nitrogen fixation in green leys, quantification of total below- and above ground N ]. Runs 01 January 2005 - 31 December 2007. Project leader(s): Dahlin, Sigrun, Swedish University of Agricultural Sciences, SLU. More information online at <http://ekoforsk.slu.se/en>.

{PROJECT} Kvävemineraliseringsförlopp efter gödsling med organiska gödselmedel vid olika tidpunkter [The nitrogen mineralization process after application of organic fertilizers at different times of the year ]. Runs 01 January 2005 - 31 December 2007. Project leader(s): Delin, Sofia and Lindén, Börje, Swedish University of Agricultural Sciences, SLU. More information online at <http://ekoforsk.slu.se/en>.

{PROJECT} Odlingssystem på ekologiska växtodlingsgårdar: förbättring av växtnäringshushållningen [Cultivation systems on organic arable farms: improvement of plant nutrient management ]. Runs 01 January 2005 - 31 December 2007. Project leader(s): Wivstad, Maria, Swedish University of Agricultural Sciences, SLU. More information online at <http://ekoforsk.slu.se/en>.

{PROJECT} Olika baljväxtsymbioser och deras kvävefixering i fält [Different legume-Rhizobia symbioses and their N2 fixation in field]. Runs 01 July 2004 - 31 December 2007. Project leader(s): Huss-Danell, Kerstin, Swedish University of Agricultural Sciences, SLU.

{PROJECT} ØKOKORNSIP: Organic cropping systems for higher and more stable cereal yields [Økologiske dyrkingssystem for høgare og meir stabile kornavlingar]. Runs 01 January 2003 - 31 December 2007. Project leader(s): Eltun, Ragnar, Bioforsk Norwegian Institute of Agronomical and Environmental Research. More information online at <http://www.bioforsk.no/ViewPPP.aspx?view=project&id=256&viewLanguage=NorwegianBokmaal>.

{PROJECT} Produktion av rötrest vid hög ammoniumhalt [Production of a high ammonium digesate]. Runs 01 January 2002 - 31 December 2005. Project leader(s): Schnürer, Anna, Swedish University of Agricultural Sciences, SLU.

{PROJECT} Reläodling för ökad uthållighet i ekologisk odling [Relay cropping for increased sustainability in organic farming ]. Runs 01 January 2005 - 31 December 2007. Project leader(s): Roslon, Ewa, Swedish University of Agricultural Sciences, SLU.

{PROJECT} System för utegående slaktsvin i ekologiskt lantbruk, djurmiljö, hushållning av växtnäring och arbetsmiljö [Outdoor pig systems in organic agriculture: animal environment, plant nutrient management and working environment]. Runs 01 January 2002 - 31 December 2004. Project leader(s): Salomon, Eva, Swedish Institute of Agricultural and Environmental Engineering, JTI.

{PROJECT} Three organic systems on medium silt soil; stockless system with benefit of pig manure; with associated outdoor pigs. Runs 01 April 1991 - 31 March 1995. Project leader(s): Cormack, Bill, ADAS Consulting Ltd.

{FACILITY} IGER: Ty Gwyn Organic Farm: Institute of Grassland and Environmental Research (IGER). More information online at <http://www.iger.bbsrc.ac.uk/igerweb>.

{PROJECT} Utveckling av hållbara och produktiva odlingssystem: karakterisering av lerjord [Developing sustainable and productive cropping systems: characterisation of clay soil]. Runs 01 July 2002 - 31 December 2004. Project leader(s): Stenberg, Maria, The Rural Economy and Agricultural Societies.

{PROJECT} Utveckling av integrerad, ekologisk och konventionell växtodling [Development of integrated, organic and conventional crop production]. Runs 01 July 2004 - 31 June 2008. Project leader(s): Stenberg, Maria, The Rural Economy and Agricultural Societies.

{PROJECT} Växtföljd med trädgårds- och jordbruksgrödor där växtresterna återförs som rötrest [Crop rotation with plant residues returned as biodigestate ]. Runs 01 January 2002 - 31 December 2004. Project leader(s): Svensson, Gunnar, Swedish University of Agricultural Sciences, SLU. More information online at <http://ekoforsk.slu.se/en>.

{PROJECT} Viehloser Ackerbau im ökologischen Landbau - Evaluierung des derzeitigen Erkenntnisstandes anhand von Betriebsbeispielen und Expertenbefragungen [Arable Organic Farming - Evaluation of the present state of knowledge on the basis of case studies and expert surveys]. Runs 01 September 2002 - 31 December 2003. Project leader(s): Schmidt, Dr. Harald Schmidt, Justus-Liebig-Universität Giessen. More information online at <http://www.bundesprogramm-oekolandbau.de/projekt_02oe458.html>.

Acikgoz, Prof. Dr. Nazimi and Ilker, Dr. Emre (2006) Cereal breeding strategies for organic and low-external-input crop production systems. Paper presented at Joint Organic Congress, Odense, Denmark, May 30-31, 2006..^**

Anon, (2002) Modelling manure NPK flows in organic farming systems to minimise nitrate leaching, ammonia volatilization and nitrous oxide emissions (OF0197). Report, Gleadthorpe, ADAS.

Bakken, Anne Kjersti; Breland, Tor Arvid; Haraldsen, Trond K.; Aamlid, Trygve S. and Sveistrup, Tore E. (2005) Soil fertility in three cropping systems after conversion from conventional to organic farming. Acta Agriculturae Scandinavica Section B-Soil and Plant Science.

Bakken, Anne Kjersti; Hansen, Sissel; Strøm, Turid and Steinshamn, Håvard (2006) Sulphur supply: a limiting factor in organic roughage-based livestock production?. Paper presented at Joint Organic Congress, Odense, Denmark, May 30-31, 2006..

Bleken, Marina Azzaroli; Steinshamn, Håvard and Hansen, Sissel (2005) High Nitrogen Costs of Dairy Production in Europe: Worsened by Intensification. Ambio 34(8):pp. 598-606.

Boldrini, Arianna; Benincasa, Paolo; Tosti, Giacomo; Tei, Francesco and Guiducci, Marcello (2007) Apparent N Balance in Organic and Conventional Low Input Cropping Systems. Poster presented at 3rd QLIF Congress: Improving Sustainability in Organic and Low Input Food Production Systems, University of Hohenheim, Germany, March 20-23, 2007.

Brandt, Kirsten (2005) Agronomy as a manipulative tool. [oral] Presentation at COST 926 Conference; EUROPEAN WORKSHOP on Improving the health value of plant foods - phytochemical optimisation, Egmond aan Zee, The Netherland, 12 - 13 October 2005.^**

Canali, Stefano (2005) Il ruolo della fertirrigazione in agricoltura biologica. [The ferti-irrigation role in organic farming.]. www.phytomagazine.com Speciale fertirrigazione( 10). Online at <http://www.phytomagazine.com>

Canali, Stefano (2003) Soil quality of organically managed citrus orchards in the Mediterranean area., in Organic Agriculture: Sustainability, Markets and Policies. OECD, chapter 2, page pp. 115-125. ISNB 92-64-10150-0 53057 2003. CABI Publishing, Wallingford, UK.

Canali, Dr. Stefano; Riva, Dr. Francesco and Dell'Orco, Dr. Silvia (2005) Criteri di ammissibilità e di utilizzo degli effluenti di allevamento e dei concimi ed ammendanti derivati in agricoltura biologica. [Utilisation and admissibility criteria of animal effluents and derived fertilisers and soil conditioners in organic farming.]. MINISTERO DELLE POLITICHE AGRICOLE E FORESTALI Progetto di ricerca La zootecnia biologica in Italia: situazioni attuali e prospettive. Tipologie d'imprese, trasformazioni necessarie e possibili, incentivi pubblici e di mercato, domanda di ricerca. no. 8, CRA - Istituto Sperimentale per la Nutrizione delle Piante.

Christiansen, Julie S.; Kristensen, Hanne L. and Thorup-Kristensen, Kristian (2003) Rodsystemer hos rødbede, sukkermajs og knoldselleri efter grøngødning [Root systems of beetroot, sweet corn and celleriac after green manure]. In Forskningsnytt, Volume 4, page pp. 20-21.

Colomb, B.; Desclaux, D.; Debaeke, P.; Justes, E. and Burger, P. (2004) Ability of new durum wheat pure lines to meet yield stability and quality requirements in low input and organic systems. Paper presented at Pc. 8th ESA Congress, Copenhague, page 495 -496.

Cormack, Bill (2002) Testing the sustainability of stockless arable organic farming on a fertile soil (Extension to OF0 145). Report, Terrington, ADAS Consulting Ltd.

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

Cormack, W. F. (2001) Testing the sustainability of stockless arable organic farming on a fertile soil (OF0145). Report, Terrington, ADAS.

Cornish, P. S. (2007) Phosphorus Management on ‘Extensive' Organic Farms with Infertile Soils . Paper presented at 3rd QLIF Congress: Improving Sustainability in Organic and Low Input Food Production Systems, University of Hohenheim, Germany, March 20-23, 2007.

Cuttle, Stephen P (2002) Nutrient budgets as a tool for researchers and farmers . Paper presented at UK Organic Research 2002 Conference, Aberystwyth, 26-28 March 2002; Published in Powell, Jane and et al., , Eds. Proceedings of the UK Organic Research 2002 Conference, page pp. 153-156. Organic Centre Wales, Institute of Rural Studies, University of Wales Aberystwyth.

Cuttle, Dr Steve (2002) Influence of level of self-sufficiency on the nutrient budgets of an organic dairy farm (OF0180). Report, Ty Gwyn, Institute of Grassland and Environmental Research.

Dalgaard, Randi; Scmidt, Jannick; Halberg, Niels; Christensen, Per; Thrane, Mikkel and Pengue, Walter A. (2007) LCA of Soybean Meal. International Journal of LCA 15:pp. 1-15.

David, Christophe; Jeuffroy, Marie-Hélène; Valentin Morison, Muriel and Herbain, Céline (2007) Improvement of the soil-crop model AZODYN under conventional, low-input and organic conditions. Paper presented at 3rd QLIF Congress: Improving Sustainability in Organic and Low Input Food Production Systems, University of Hohenheim, Germany, March 20-23, 2007.

Doyle, Chris J and Topp, Cairistiona F E (2002) Potential economic gains from using forage legumes in organic livestock systems in northern Europe . Paper presented at UK Organic Research 2002 Conference, Aberystwyth, 26-28 March 2002; Published in Powell, Jane and et al., , Eds. Proceedings of the UK Organic Research 2002 Conference, page pp. 195-196. Organic Centre Wales, Institute of Rural Studies, University of Wales Aberystwyth.

Fortune, S; Robinson, J S; Watson, C A; Philipps, L; Conway, J S and Stockdale, E A (2005) Response of organically managed grassland to available phosphorus and potassium in the soil and supplementary fertilization: field trials using grass– clover leys cut for silage. Soil use and Land Management 21(21):pp. 370-376.

Fowler, Susan M; Philipps, Lois and Watson, Christine A (2002) Carrot or stick? – Would information concerning the economic value of nutrient losses, and their impact on food quality achieve greater environmental protection than regulation? . Paper presented at UK Organic Research 2002 Conference, Aberystwyth, 26-28 March 2002; Published in Powell, Jane and et al., , Eds. Proceedings of the UK Organic Research 2002 Conference, page pp. 133-136. Organic Centre Wales, Institute of Rural Studies, University of Wales Aberystwyth.

GALAL ELGHARABLY, Ahmed (2002) Improving Compost Quality for Organic Vegetable production [Amélioration de la qualité du compost pour la production biologique de cultures maraîchères]. Master thesis, Organic Farming, IAMB Mediterranean Agronomic Institute of Bari. Published in Tesi Master of Science no. 281.

Goodlass, G.; Halberg, N.; Verschuur, G.W. and Hanegraff, M.C. Goodlass, G.; Halberg, N; Verschuur, G.W. and Hanegraff, M.C., Eds. (2001) Study on Input/Output Accounting Systems on EU agricultural holdings. Report, CLM.

Gordon, Sue (2002) Desk study – Optimising the synergism between organic poultry production and whole farm rotations, including home grown protein sources. Report, ADAS Consulting Ltd.

Gordon, Susan H; Bhogal, Anne and Walker, Andrew W (2002) Integration of organic poultry in whole farm systems: manure nutrient budgets . Paper presented at UK Organic Research 2002 Conference, Aberystwyth, 26-28 March 2002; Published in Powell, Jane and et al., , Eds. Proceedings of the UK Organic Research 2002 Conference, page pp. 263-268. Organic Centre Wales, Institute of Rural Studies, University of Wales Aberystwyth.

Govasmark, Espen (2005) Trace element status of soil and organically grown herbage in relation to animal requirements [Sporstoffer i jord og økologisk dyrket grovfôr vurdert i henhold til dyrenes behov]. Ph.D. thesis, Department of Plant- and Environmental Sciences, Norwegian University of Life Sciences. Norwegian University of Life Sciences.

Govasmark, Espen; Steen, Arvid; Bakken, Anne Kjersti; Strøm, Turid and Hansen, Sissel (2005) Factors affecting the concentration of Zn, Fe and Mn in herbage from organic farms and in relation to dietary requirements of ruminants. Acta Agriculturae Scandinavica Section B - Soil and Plant Science 55:pp. 131-142.

Gylfadóttir, Thórey; Helgadóttir, Áslaug and Høgh-Jensen, Henning (2007) Consequences of including adapted white clover in northern European grassland: transfer and deposition of nitrogen. Plant and Soil 297. Online at <http://www.springerlink.com/content/100326/>

Haas, Guido and Deittert, Christine (2003) Stoffflußanalyse und Produktionseffizienz der Milchviehhaltung unterschiedlich intensiv ökologisch wirtschaftender Betriebe [Nutrient matter flow analyses and production efficiency of organic dairy farms at different intensity levels]. Report, Institut für Organischen Landbau, Universität Bonn.

Halberg, Niels (1999) Indicators of resource use and environmental impact for use in a decision aid for Danish livestock farmers . Agriculture, Ecosystems & Environment 76:pp. 17-30.

Halberg, Niels (1998) Researching Farmers Possibilities and Motivation for Including Environmental Aspects in their Management. Poster presented at Proceedings of the Third European Symposium of thhe Association of Farming Systems Research and Extension, Hohenheim, 250398-270398; Published in Rural and Farming Systems Analyses Environmental Perspectives, page pp. 103-113.

Halberg, Niels; Dalgaard, Randi and Rasmussen, Morten Dalgas (2006) Miljøvurdering af konventional og økologisk avl af grøntsager - Livscyklusvurdering af produktion i væksthuse og på friland: Tomater, agurker, løg, gulerødder. Arbejdsrapport fra Miljøstyrelsen no. 5.

Halberg, Niels and Jensen, Carsten Hvelplund (1996) Dairy farm production strategy and nitrogen surplus, in Walter-Jørgensen, Aage and Pilegaard, Steen, Eds. Integrated Environmental an Economic Analyses in Agriculture. Report no. 89, page pp. 103-120. Statens Jordbrugs- og Fiskeriøkonomiske Institut.

Halberg, Niels; Kristensen, Erik Steen and Kristensen, Ib Sillebak (1995) Nitrogen Turnover on Organic and Conventional Mixed Farms. Journal of Agricultural and Environmental Ethics 8(1):pp. 30-51.

Halberg, Niels; Kristensen, Ib Sillebak and Møller, Berit E. (1998) Kvælstofregnskaber på husdyrbrug. In Grøn Viden, Husdyrbrug, January, Volume 1, page pp. 1-8.

Halberg, Niels; Michelsen, Johannes and Noe, Egon (1999) Samspillet mellem landbrugsproduktion, landbrugeres værdier og regler. Økonomi og Politik 72(1):pp. 18-34.

Halberg, Niels; van der Werf, Hayo M.G.; Basset-Mens, Claudine; Dalgaard, Randi and de Boer, Imke J.M. (2005) Environmental assessment tools for the evaluation and improvement of European livestock production systems. Livestock Production Science 96:pp. 33-50.

Hansen, Martin N. (2005) Technologies to reduce the environmental impacts and nitrogen losses of livestock manure. Ph.D. thesis, Department of Agricultural Engineering, Danish Institute of Agricultural Sciences.^*

Hansen, Sissel; A. Bleken, Marina; Løes, Anne-Kristin; Govasmark, Espen; Falk Øgaard, Anne and Breland, Tor Arvid (2007) Sustainable nutrient supply of organic farming challenged by specialisation . Paper presented at NJF 23rd Congress 2007 - Trends and Perspectives in Agriculture, Copenhagen, June 26-29 2007; Published in Lund, Mogens and Larsen, Torben Ulf, Eds. NJF Report: NJF 23rd Congress 2007 - Trends and Perspectives in Agriculture 3(2), page pp. 193-194. NJF Report 3 (2). Nordic Association of Agricultural Scientists.

Hauggaard-Nielsen, H; Ambus, P; Dalgaard, T; Johansen, A; Jørgensen, U; Nielsen, A.M.; Nielsen, L.H.; Olesen, J.E.; Roepstorff, A; Skytte, K; Smith, J.E.; Thomsen, A.B.; Thomsen, M.H. and Jensen, E.S. (2007) Biomass and bioenergy production in organic agriculture. Consequences for soil fertility, environment, spread of animal parasites and socio-economy. BioConcnes, a 4-year interdisciplinary project.. Poster presented at 23rd NJF Congres, Faculty of Life Sciences, University of Copenhagne, Denmark, 26-29 June, 2007.

Høgh-Jensen, H; Myaka, F.A.; Sakala, W.D.; Kamalongo, D.; Ngwira, A.; Vesterager, J.M.; Odgaard, R. and Adu-Gyamfi, J.J. (2007) Yields and qualities of pigeonpea varieties grown under smallholder farmers’ conditions in Eastern and Southern Africa. African Journal of Agricultural Research 2(6). Online at <http://www.academicjournals.org/AJAR/index.htm>

Heinäaho, Merja ; Pusenius, Jyrki and Julkunen-Tiitto, Riitta (2006) Organic farming methods affect the concentration of phenolic compounds in sea buckthorn leaves. Paper presented at Joint Organic Congress, Odense, Denmark, May 30-31, 2006..

Horgan, A R (2006) The potential for slug control with ferric phosphate. Poster presented at What can organic farming deliver? COR 2006, Heriot-Watt University, Edinburgh, 18-20 September 2006; Published 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, page pp. 225-226.

Hovmøller, M.S.; Berntsen, J. and Kristensen, K. (2006) Impact of foliar diseases in organically grown barley: Influence of fertilization, nutrient content in leaves, varietal disease resistance characteristics and yield potential. Working Paper.

Huxham, Sally K; Sparkes, Debbie L and Wilson, Paul (2002) Organic conversion strategies for stockless farming systems. Paper presented at UK Organic Research 2002 Conference, Aberystwyth, 26-28 March 2002; Published in Powell, Jane and et al., , Eds. Proceedings of the UK Organic Research 2002 Conference, page pp. 51-52. Organic Centre Wales, Institute of Rural Studies, University of Wales Aberystwyth.

Jacobsen, O.H.; Vinther, F.P.; Schjønning, P.; Hansen, E.M. and Eriksen, J. (2004) Økologisk jordbrug til beskyttelse af grundvand [Organic farming for protection of the ground water quality]. [oral] Presentation at Økologi-kongres 2004, Odense Kongrescenter, 16-17. November 2004.

Jensen, Lars Stoumann (2005) Lille effekt af fangafgrøder [Little effect of catch crops]. In Økologisk Jordbrug, 7. October, No 345, page 6. Økologisk Landsforening.

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).

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. Online at <http://www.darcof.dk/enews/jun05/fosfor.html>

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. Online at <http://www.foejo.dk/enyt2/enyt/jun05/fosfor.html>

Köhler, Brigitte and Kolbe, Dr. Hartmut (2006) Formen der Stickstoffbilanzierung für die Praxis des Ökologischen Landbaus [Nitrogen budget types for organic farming practice]. Poster presented at Vortragsveranstaltung mit Feldtag „Forschung zum ökologischen Landbau in Sachsen“, Roda, 14. 06. 2006.

Keatinge, R (2004) Optimising the production and utilisation of forage for organic livestock (CTE0202). Report, Redesdale, ADAS Consulting Ltd.

Keatinge, Ray (2001) Efficient use of animal manures within an upland organic system (OF0187). Report, Redesdale, ADAS Consulting Ltd.

Knudsen, Marie Trydeman (2006) Økologer udvasker mindre kvælstof [Less N leaching at organic farms]. FØJOenyt 1. Online at <http://www.foejo.dk/enyt2/enyt/aug06/udvask.html>

Knudsen, Marie Trydeman (2006) Mindre udvaskning fra økologer. In Økologisk Jordbrug, 11. August, Volume 365, page pp. 6-6. Økologisk Landsforening.

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

Kolbe, Dr. Hartmut and Köhler, Brigitte (2006) PC-Programm BEFU, Teil Ökologischer Landbau [PC programme BEFU, organic farming section]. Poster presented at Vortragsveranstaltung mit Feldtag „Forschung zum ökologischen Landbau in Sachsen“, Roda, 14. 06. 2006.

Kristensen, H.L. and Thorup-Kristensen, K. (2006) Deep roots of Brassica oleracea have high uptake of 15N-nitrate to 2 meters soil depth. [preprint]^**

Kristensen, H.L. and Thorup-Kristensen, K. (2003) Olieræddike kan optage tabt nitrat fra 2,5 meters dybde [Fodder radish takes up lost nitrate from 2.5 meters depth]. In Månedsmagasinet Mark, Volume 7, page pp. 14-15.^**

Kristensen, Hanne L. and Thorup-Kristensen, Kristian (2005) Grønkål optager nitrat fra mere end 2 meters dybde [Curly kale takes up nitrate from more than 2 meters depth]. FØJOenyt 4. Online at <http://www.foejo.dk/enyt2/enyt/aug05/root.html>^**

Løes, Anne-Kristin (1995) "Thirty-farm Project", Norway. Ecology and farming(9 May 1995):pp. 24-25.

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.

Løes, Anne-Kristin and Øgaard, Anne Falk (1997) Changes in the nutrient content of agricultural soil on conversion to organic farming, in relation to farm level nutrient balances and soil contents of clay and organic matter.. Acta Agric. Scand., Sect. B, Soil and Plant Sci. 47:pp. 201-214.

LI, Mrs Zhifang (2002) New eco-compatible technologies of durum wheat production: a case study on winter wheat living mulch by sub clover in Southern Italy [Nouvelles technologies éco-compatibles pour la production de blé dur: cas d’étude sur un mulching de trèfle souterrain dans une parcelle de blé en Italie du Sud]. Master thesis, Organic Agriculture, IAMB - Mediterranean Agronomic Institute of Bari. Published in Tesi Master of Science no. 273.

Linder, Janne (2005) Kväveeffektivitet i ekologisk odling-slutsatser från gårdsstatistik [Nitrogen efficiency in organic farming-conclusions from farm statistics]. Paper presented at Att navigera i en ny tid, Uppsala, 22-23 november 2005; Published in Ekologiskt lantbruk konferens 22-23 november 2005. Ultuna, Uppsala. Sammanfattningar av föredrag och postrar. SLU. Centrum för uthålligt lantbruk., page pp. 84-87.

Lynch, Derek H; Roberts, Cory and Voroney, Paul (2006) SUSTAINABILITY OF ORGANIC DAIRYING IN CANADA. Paper presented at Joint Organic Congress, Odense, Denmark, May 30-31, 2006..

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. Online at <http://www.springerlink.com/content/1573-5036/>

Nemecek, T; Dubois, D; Huguenin-Elie, O and Gaillard, G (2006) Life cycle assessment of Swiss organic farming systems. Paper presented at What can organic farming deliver? COR 2006, Heriot-Watt University, Edinburgh, 18-20 September 2006; Published 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, page pp. 15-18. Association of Applied Biologists.

Nicholas, Phillipa; Padel, Susanne; Cuttle, S P; Fowler, S M; Hovi, M; Lampkin, N H and Weller, R F (2004) Organic Dairy Production - A Review. Biological Agriculture and Horticulture 22:pp. 217-249.

Nielsen, L.H. and Hjort-Gregersen, K. (200) Socio-economic Analysis of Centralised Biogas Plants. Report.

Noe, Egon and Halberg, Niels (2002) Research Experience with Tools to Involve Farmers and Local Institutions in Developing More Environmentally Friendly Practices, in Hagedorn, Konrad, Eds. Environmental Co-operation and Institutional Change. Theories and Policies for European Agriculture. New Horizons in Enronmental Economics, chapter 8, page pp. 143-161.

Nyberg, Anna and Lindén, Börje (2008) Åkerbönor som förfrukt till vårsäd i ekologiskodling [Faba beans as previous crop to spring cereals in organic farming]. Report no. 15, Department of soil sciences, SLU, Swedish University of agricultural sciences.

Owens, Katie and Watson, Christine (2002) Nutrient budgeting for trace elements: Examples from Scottish organic farms. Paper presented at UK Organic Research 2002 Conference, Aberystwyth, 26-28 March 2002; Published in Powell, Jane and et al., , Eds. Proceedings of the UK Organic Research 2002 Conference, page pp. 147-148. Organic Centre Wales, Institute of Rural Studies, University of Wales Aberystwyth.

P.S., Hooda; M., Moynagh; I.F., Svoboda and H.A., Anderson (1998) A comparative study of nitrate leaching from intensively managed monoculture grass and grass-clover pastures. Journal of Agricultural Science 131(3). Online at <http://dx.doi.org/10.1017/S0021859698005863>

Padel, Susanne (2001) Conversion to Organic Production Software (OrgPlan, OF0159). Report, Institute of Rural Sciences, University of Wales Aberystwyth.

Padel, Susanne and Sundrum, Albert (2006) How can we achieve 100% organic diets for pigs and poultry?. Poster presented at What will organic farming deliver COR 2006, Edinburgh, 18-20 September 2006.

Padel, Dr Susanne (2003) Testing of OrgPlan Conversion Planning software (OF0331). Report, Institute of Rural Sciences, University of Wales, Aberystwyth.

Pedersen, Anders (2008) Modelling crop root development and nitrate uptake. Ph.D. thesis, Department of Agricultural Sciences, The Faculty of Life Sciences, University of Copenhagen.^*

Pedersen, Anders (2007) Simulating Root Density Dynamics and Nitrogen Uptake – Can a Simple Approach be Sufficient?. [oral] Presentation at 37th Annual Biological Systems Simulation Conference, Holiday Inn, College Park, Maryland USA, 17-19 april.^**

Pedersen, Anders (2005) If modelling modelling with Daisy. [oral] Presentation at 14th N WORKSHOP “N management in agrosystems in relation to the Water Framework Directive”, Maastricht, The Netherlands, 24-26 October 2005.

Pedersen, Anders; Stoumann Jensen, Lars and Thorup-Kristensen, Kristian (2005) A model analysis on nitrate leaching under different soil and climate conditions and use of catch crops. Poster presented at at 14th N WORKSHOP “N management in agrosystems in relation to the Water Framework Directive”, Maastricht, The Netherlands, 24-26 October 2005,.

Pedersen, Anders and Thorup-Kristensen, Kristian (2006) Hvornår kan udtagning af Nmin prøver betale sig? [When will it be valuable to make mineral N samples?]. In Frugt og Grønt, September, No 9, page pp. 378-379. Frugt og Grønt Rådgivningen, Skejby, Århus.^**

Pedersen, Anders; Thorup-Kristensen, Kristian and Jensen, Lars Stoumann (2006) Simulating nitrate retention in soils and the effect of catch crops use and root growth. Working Paper.^*

Pedersen, Anders; Zhang, Kefeng; Jensen, Lars Stoumann and Thorup-Kristensen, Kristian (2007) Simulating Root Density Dynamics and Nitrogen Uptake – Can a Simple Approach be Sufficient?. Paper presented at 37th Annual Biological Systems Simulation Conference, Holiday Inn, College Park, Maryland, US, April 17-19, 2007; Published in 37th Annual Biological Systems Simulation Conference, Program and Abstract, page pp. 11-12. USDA-ARS.^**

Pedersen, Anders; Zhang, Kefeng; Thorup-Kristensen, Kristian and Jensen, Lars S. (2007) Simulating root density dynamics and nitrogen uptake in the soil profile – A simple approach . Working Paper.

Rasmussen, Jim (2007) Below ground C and N transformation processes in perennial grass-clover mixtures. Ph.D. thesis, Department of Agricultural Sciences, Faculty of Life Sciences, University of Copenhagen.^*

Raupp, Dr Joachim (2000) The well-proportioned farm organism. Just a pleasing image of a mixed farming system or rather a basic requirement for functioning organic husbandry?. Paper presented at 13th International IFOAM Scientific Conference, Basel, 28 to 31 August 2000; Published in Alföldi, Th; Lockeretz, W and Niggli, U, Eds. Proc. 13th Int. IFOAM Sci. Conf., August 2000 Basel, page pp. 700-703. vdf Hochschulverlag (ETH Zürich).

Rayns, Francis W; Harlock, Simon and Turner, Rebecca J (2002) Fertility building strategies during the conversion period – assessment of performance in a stockless field vegetable rotation. Paper presented at UK Organic Research 2002 Conference, Aberystwyth, 26-28 March 2002; Published in Powell, Jane and et al., , Eds. Proceedings of the UK Organic Research 2002 Conference, page pp. 125-128. Organic Centre Wales, Institute of Rural Studies, University of Wales Aberystwyth.

Rayns, Francis; Schmutz, Ulrich; Firth, Chris; Thorup-Kristensen, Kristian; Zhang, Kefeng and Rahn, Clive (2006) The use of computer modelling to evaluate the agronomic, economic and environmental impacts of N management in contrasting organic rotations. Poster presented at What can organic farming deliver? COR 2006, Heriot-Watt University, Edinburgh, 18-20 September 2006; Published 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, page pp. 171-174.

Refsgaard, Karen; Jenssen, Petter D. and Magid, Jakob (2006) Possibilities for closing the urban rural nutrient cycles, in Halberg, N.; Knudsen, M.T. and Kristensen, E.S., Eds. Global Development of Organic Agriculture: Challenges and Prospects, chapter 7, page pp. 181-214. CaB International.^**

Reveredo Giha, C; Topp, C F E; Toma, L and Wu, L (2006) Economic and environmental analysis of the introduction of legumes in livestock farming systems. Poster presented at What can organic farming deliver? COR 2006, Heriot-Watt University, Edinburgh, 18-20 September 2006; Published 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, page pp. 199-203.

Riley, Hugh; Løes, Anne-Kristin; Hansen, Sissel and Dragland, Steinar (2003) Yield responses and nutrient utilization with the use of chopped grass and clover material as surface mulches in an organic vegetable growing system. Biological Agriculture and Horticulture 21:pp. 63-90.

Rinaldi, Michele; Vonella, Alessandro Vittorio and Garofalo, Pasquale (2007) Organic Fertilization In A “Tomato – Pea” Rotation In Southern Italy. Poster presented at 3rd QLIF Congress: Improving Sustainability in Organic and Low Input Food Production Systems, University of Hohenheim, Germany, March 20-23, 2007.

Sanders, Ian; Watson, Christine; Rees, Robert and Atkinson, David (2002) Nitrogen fixation and soil nitrogen in organic ley arable rotations. Paper presented at UK Organic Research 2002 Conference, Aberystwyth, 26-28 March 2002; Published in Powell, Jane and et al., , Eds. Proceedings of the UK Organic Research 2002 Conference, page pp. 85-88. Organic Centre Wales, Institute of Rural Studies, University of Wales Aberystwyth.

Schäfer, W.; Evers, L.; Lehto, M.; Sorvala, S.; Teye, F. and Granstedt, A. (2005) Biogas from manure – a new technology to close the nutrient and energy circuit on-farm . Paper presented at Organic farming for a new millennium – status and future challenges : NJF-seminar 369, Alnarp, Sweden, June 15-17, 2005; Published in NJF Report 1(1), page pp. 165-168. Nordic Association of Agricultural Scientists.

Schäfer, Winfried; Evers, Lars; Lehto, Marja; Sorvala, Sanna; Teye, Frederick and Granstedt, Artur (2005) Nutrient balance of a two-phase solid manure biogas plant. Paper presented at Manure - an agronomic and environmental challenge : NJF-seminar no. 372, Nils Holgerssongymnasiet, Skurup, Sweden, 5-6 September 2005; Published in Stenberg, Maria; Nilsson, Hans; Brynjolfsson, Rikhard; Kapuinen, Petri; Morken, John and Søndergaard Birkmose, Torkild, Eds. NJF Report 1(2), page pp. 43-46. Nordic Association of Agricultural Scientists.

Schäfer, Winfried; Evers, Lars; Lehto, Marja; Sorvala, Sanna; Teye, Frederick and Granstedt, Artur (2005) Two phase continuous digestion of solid manure on-farm: design, mass and nutrient balance. Poster presented at Ekologiskt lantbruk konferens, Ultuna, Uppsala, 22-23 november 2005; Published in Ullvén, Karin and Alm, Jessica, Eds. Att navigera i en ny tid, page pp. 310-311.

Schäfer, Winfried; Lehto, Marja and Teye, Frederick (2006) Dry anaerobic digestion of organic residues on-farm - a feasibility study. Agrifood Research Reports no. 77, MTT Agrifood Research Finland.

Schmutz, U; Rayns, F and Sumpton, P (2006) 10-year interdisciplinary monitoring of organic stocklass, vegetable rotations at Warwick-HRI, Kirton, South Lincolnshire, UK. Paper presented at What can organic farming deliver? COR 2006, Heriot-Watt University, Edinburgh, 18-20 September 2006; Published 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, page pp. 29-32. Association of Applied Biologists.

Schmutz, Dr Ulrich; Rayns, Dr Francis; Firth, Mr Chris; Rosenfeld, Dr Anton; Thorup-Kristensen, Dr Kristian; Zhang, Dr Kefeng and Rahn, Dr Clive (2006) Environmental and economic modelling of organic, stockless, horticultural crop rotations . Paper presented at Joint Organic Congress, Odense, Denmark, May 30-31, 2006..

Schober Lima, Juliana and Focken, Ulfert (2007) Analysis of Soil Nutrients and Organic Matter in organic and conventional Marine Shrimp ponds at Guaraíra Lagoon, Rio Grande do Norte State, Brazil. Paper presented at Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Stuttgart, Deutschland, 20.-23.03.2007.

Seuri, P. (2005) Primary nutrient balance as a new tool to evaluate nutrient utilization. Poster presented at Organic farming for a new millenium - status and future challenges: NJF-seminar 369, Alnarp, Sweden, June 15-17, 2005; Published in NJF Report 1(1), page 249.

Sharma, Arun K. (2006) The potential of organic farming in drylands of India. http://ag.arizona.edu/OALS/ALN/aln58/sharma.html(58). Online at <http://ag.arizona.edu/OALS/ALN/aln58/sharma.html>

Shepherd, Dr M. A. (2000) The environmental implications of manure use in organic farming systems (OF0161). Report, ADAS.

Shepherd, Mark; Philipps, Lois and Webb, John (2002) Tools for managing manure nutrients. Paper presented at UK Organic Research 2002 Conference, Aberystwyth, 26-28 March 2002; Published in Powell, Jane and et al., , Eds. Proceedings of the UK Organic Research 2002 Conference, page pp. 165-168. Organic Centre Wales, Institute of Rural Studies, University of Wales Aberystwyth.

Slots, Tina; Leifert, Carlo; Butler, Gillian; Kristensen, Troels and Nielsen, Jacob Holm (2006) Effect of dairy management on quality characteristics of milk . Paper presented at Joint Organic Congress, Odense, Denmark, May 30-31, 2006..

Stefano, Dr. Canali; Alessandra, Dr. Trinchera; Emanuela, Dr. Di Bartolomeo; Luigi, Dr. Nisini; Anna, Dr. Benedetti and Francesco, Dr. Intrigliolo (2002) Soil fertility comparison among organic and conventional managed citrus orchards in Sicily.. [oral] Presentation at 17th World Congress of Soil Science, Bangkok (Thailand), 14 – 21 August.

Steinshamn, Håvard (2001) Effects of Cattle Slurry on the Growth Potential and Clover Proportion of Organically Managed Grass–Clover Leys. Acta Agriculturae Scandinavica: Section B, Soil and Plant Science 51(3):pp. 113-124.

Steinshamn, Håvard; Bleken, Marina A and Thuen, Erling (2006) Feed production on farms without animals is not environmentally sustainable. Paper presented at Joint Organic Congress, Odense, Denmark, May 30-31, 2006..

Stockdale, E (2001) Optimisation of phosphorus and potassium management within organic farming systems (OF0114). Report, Rothamsted, Institute or Arable Crops Research.

Stockdale, Elizabeth A and Watson, Christine A (2002) Nutrient budgets on organic farms: a review of published. Paper presented at UK Organic Research 2002 Conference, Aberystwyth, 26-28 March 2002; Published in Powell, Jane and et al., , Eds. Proceedings of the UK Organic Research 2002 Conference, page pp. 129-132. Organic Centre Wales, Institute of Rural Studies, University of Wales Aberystwyth.

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.

Sundrum, A and Padel, S (2006) Evaluation criteria for including feed materials in Annex II C and dietary supplements in Annex II D of the EC-Regulation 2092/91. EEC 2092/91 (Organic Revision Project Report) no. D 4.2, University of Kassel, Kassel.

Tersbøl, Michael and Bertelsen, Inger (27. February 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>. 27. februar 2007

Thorup-Kristensen, K. (2005) Use of green manure, catch crops, and deep rooted crops for nutrient management in an organic vegetable crop rotation [Brug af grøngødning, efterafgrøder og afgrøder med dyb rodvækst til forbedret næringsstofhusholdning i et økologisk grønsagssædskifte]. Paper presented at 1st QualityLowInputFood Congress, Newcastls, UK, January 2005; Published in Book of abstracts.

Thorup-Kristensen, Kristian (2007) Bedre sædskifter med dybe rødder [Better rotations with deep roots]. In Økologisk Jordbrug, Volume 27, No 378, page 10.

Thorup-Kristensen, Kristian (2007) Hvad bestemmer afgrøders roddybde, og hvordan kan vi bruge det til at opnå bedre udnyttelse af kvælstof? [What determines crop rooting detph, and how can we use this to achive improved nitrogen efficiency in rotations?]. Paper presented at Plantekongres 2007, Herning, Januar 2007; Published in Plantekongress 2007: Sammendrag af indlæg, page pp. 62-63.^**

Thorup-Kristensen, Kristian and Pedersen, Lene (2006) Cropping systems with winter wheat or spring wheat? Root growth, catch crops, nitrogen leaching and baking quality. Paper presented at Joint Organic Congress, Odense, Denmark, May 30-31, 2006..^*

Topp, Cairistiona F E; Watson, Christine A and Stockdale, Elizabeth (2002) Utilising the concept of nutrients as a currency within organic farming system. Paper presented at UK Organic Research 2002 Conference, Aberystwyth, 26-28 March 2002; Published in Powell, Jane and et al., , Eds. Proceedings of the UK Organic Research 2002 Conference, page pp. 157-160. Organic Centre Wales, Institute of Rural Studies, University of Wales Aberystwyth.

Unspecified, (2003) Alternative, non-animal based nutrient sources, for organic plant raising OF0308. Report, Elm Farm Research Centre.

Unspecified, (1998) Organic milk production: post conversion phase - IGER OF0113. Report, IGER.

V, Alex Albert and V, Krishnasamy (2004) Evaluation of Organic Source of Nutrients on Growth and Yield Parameters of Tomato. Master thesis, Department of Seed Science and Technology, Tamil Nadu Agricultural University, Coimbatore, INDIA..

van der Burgt, G.J.H.M.; Oomen, G.J.M. and Rossing, W.A.H. (2006) The NDICEA model as a learning tool: experiences in 2005. Paper presented at Joint Organic Congress, Odense, Denmark, May 30-31, 2006..

Vinther, F.P. (2006) Effects of cutting frequency on plant production, N-uptake and N2 fixation in harvested and below-harvest plant biomass of grass clover. Grass and Forage Science 61:pp. 154-163.

Weller, R (2006) The development of organic milk production systems. Report, Trawscoed, Institute for Grassland and Environmental Research.

Weller, Richard F and Jones, Evan L (2002) An overview on the role and potential of forage production on lowland organic livestock farms. Paper presented at UK Organic Research 2002 Conference, Aberystwyth, 26-28 March 2002; Published in Powell, Jane and et al., , Eds. Proceedings of the UK Organic Research 2002 Conference, page pp. 81-84. Organic Centre Wales, Institute of Rural Studies, University of Wales Aberystwyth.

Weller, Richard; Nicholas, Philipa and Fowler, Susan (2002) Comparison of the physical and financial performance of organic dairy farming systems (OF0146). Report, Ty Gwyn, Institute of Grassland and Environmental Research.

Williams, A G; Audsley, E and Sandars, D L (2006) Energy and environmental burdens of organic and non-organic agriculture and horticulture. Paper presented at What can organic farming deliver? COR 2006, Heriot-Watt University, Edinburgh, 18-20 September 2006; Published 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, page pp. 19-23. Association of Applied Biologists.

Woodward, Lawrence; Philipps, Lois; Wolfe, Martin; Jones, Hannah; Hinchsliffe, Kay; Hitchings, Roger; O'Brien, Josie and Deane, Tim (October 2005) Elm Farm Research Centre Bulletin with Technical Updates from the Organic Advisory Service 80. Elm Farm Research Centre.

Woodward, Mr Lawrence; Wolfe, Prof Martin; Schweisfurth, Karl Ludwig; Jones, Dr Hannah; Philipps, Ms Lois; Hitchings, Mr Roger and Measures, Mr Mark (July 2005) Elm Farm Research Centre Bulletin 79 July 2005. all, Elm Farm Research Centre.

Younie, D. (2001) Organic grassland: the foundation stone of organic livestock farming, in Younie, D. and Wilkinson, J.M., Eds. Organic livestock farming. Papers presented at conferences held at the Heriot-Watt University, Edinburgh and at the University of Reading, 9-10 February 2001, chapter 6, page pp. 75-102. Lincoln, UK: Chalcombe Publications.

This list was generated on Mon May 12 06:31:28 CEST 2008.