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Subject Area: Crop combinations and interactions

Number of eprints: 364.

Østergård, H. and Fontaine, L., Eds. (2006) Cereal crop diversity: Implications for production and products. Proceedings of COST SUSVAR workshop, La Besse, Paris (FR), 12-15 Jun 2006. http://www.cost860.dk/activities/workshops/Production/doc/PROCEEDINGS-LaBesse-June06.pdf. ITAB, Paris.

Bayerische Landesanstalt für Landwirtschaft, LfL, Eds. (2005) Forschung für den Ökologischen Landbau in Bayern [Research for Organic Farming in Bavaria]. Proceedings of Ökolandbautag 2005 der Bayerischen Landesanstalt für Landwirtschaft, der Technischen Universität München und der Landesvereinigung für den Ökologischen Landbau, Germany, Freising-Weihenstephan, 16.02.2005. Schriftenreihe der Bayerischen Landesanstalt für Landwirtschaft. Bayerische Landesanstalt für Landwirtschaft (LfL), Freising.

{PROJECT} Les phénomènes d'allélopathie et leur utilisation en agriculture [Utilization of allelopathy in agriculture]. Runs 10 November 2003 - 31 December 2007. Project leader(s): Delabays, Nicolas, Agroscope RAC Changins, Eidgenössische Forschungsanstalt für Pflanzenbau, CH-1260 Nyon, E-mail: info@rac.admin.ch. More information online at <http://www.aramis-research.ch/d/15858.html?config=htdig.d&method=and&words=%2704.15.2.4&keywords=&matchesperpage=10&search_algorithm=exact%3A1%20substring%3A0.75%20accents%3A0.5&fostvalue=%28alle%29&nabsvalue=%28alle%29>.

Kühne, Stefan and Britta Friedrich, Biologische Bundesanstalt für Land- und Forstwirtschaft, Braunschweig, Eds. (2002) Hinreichende Wirksamkeit von Pflanzenschutzmitteln im ökologischen Landbau sowie Saat- und Pflanzgut für den ökologischen Landbau [Sufficient Effeciency of Plant Protection Products in Organic Farming and Seeds and Propagation Material for Organic Farming]. Proceedings of Pflanzenschutz im Ökologischen Landbau - Probleme und Lösungsansätze - Fünftes Fachgespräch am 28. Juli 2001 in Kleinmachnow - "Hinreichende Wirksamkeit von Pflanzenschutzmitteln im ökologischen Landbau sowie Saat- und Pflanzgut für den ökologisch. Berichte aus der Biologischen Bundesanstalt, Heft no. 95. Saphir Verlag, D-Ribbesbüttel.

{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} Åkerböna och smalbladig lupin i samodling med stråsäd [Intercropping of narrow- leafed lupin and field bean with cereals for grazing or whole crop silage]. Runs 01 January 2002 - 31 December 2004. Project leader(s): Boström, Ullalena, Swedish University of Agricultural Sciences, SLU. More information online at <http://ekoforsk.slu.se/en>.

{FACILITY} Ökologischer Ackerbauversuch Gladbacherhof [Organic farming trial Gladbacherhof].

{PROJECT} Developing new management options for soil-borne pests of organic systems. Runs 01 February 2004 - 31 January 2007. Project leader(s): Blackshaw, Rod, University of Plymouth. More information online at <http://www2.defra.gov.uk/research/project_data/More.asp?I=LK0951&M>.

{PROGRAMME PART} Formas I: Ekologisk jordbruks- och trädgårdsproduktion, Formasprogrammet 2001-2004 - växtodling [Organic agricultural and horticultural production, Formas programme 2001-2004 - Crop production]. Runs 01 July 2001 - 31 December 2004. More information online at <http://www.cul.slu.se/forskning/programoproj/formasprog.html>.

{PROJECT} Erstellung und Prüfung von Verfahren zur Abschätzung des N-Umsatzes im Rahmen der Humusreproduktion im ökologischen Landbau [Development and verification of methods for estimating the nitrogen turnover in organic farming on the basis of data from long-term experiments]. Runs 01 August 2005 - 31 December 2006. Project leader(s): Kolbe, Dr. Hartmut and Ringe, Dr. Horst, Sächsische Landesanstalt für Landwirtschaft. More information online at <http://www.smul.sachsen.de/de/wu/Landwirtschaft/lfl/>.

{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} Genetisk diversifiering som ett redskap att minska insektsskador i ekologisk grönsaksodling [Genetic diversification as a tool for reducing pest damage in organic vegetable production]. Runs 01 July 2004 - 30 June 2008. Project leader(s): Hambäck, Peter, Stockholm University.

{PROJECT} Gestion des apports organiques en systèmes de culture maraîchers (cas d’une reconversion en agriculture biologique) [Management of the organic contributions in vegetable farming systems (in case of a reconversion in biological agriculture)]. Runs 01 January 2001 - 31 December 2002. Project leader(s): Bressoud, miss Frédérique, INRA.

{PROJECT} Gröngödsling mot jordburna svampsjukdomar i sockerbetor [Green manuring for control of soilborne fungi in sugar beets]. Runs 01 January 2003 - 31 December 2007. Project leader(s): Olsson, Åsa, Sveriges Betodlares Centralförening, SBU.

{PROJECT} Höstraps i en bädd av vitklöver  [Winter oilseed rape established in a living mulch of white clover ]. Runs 01 January 2005 - 31 December 2007. Project leader(s): Bergkvist, Göran and Börjesdotter, Desirée, Swedish University of Agricultural Sciences, SLU. More information online at <http://ekoforsk.slu.se/en>.

{PROJECT} Improving fertility management and weed control in sustainable lupin production in the UK (LISA) . Runs 01 January 2004 - 31 March 2009. Project leader(s): Jones, Raymond, Institute of Grassland and Environmental Research (IGER). More information online at <http://www.iger.bbsrc.ac.uk/Research/Projects/project_search.asp?1977>.

{PROJECT} Isolering och identifiering av ogräshämmande substanser utsöndrade av korn [Isolation and identification of weed suppressing factors secreted by barley ]. Runs 01 August 2004 - 31 August 2008. Project leader(s): Didon, Ulla, Swedish University of Agricultural Sciences, SLU.

{PROGRAMME} Jord, planter og husdyr (JORDBRUK) [Soil, plants and livestock (AGRICULTURE)]. Runs 01 January 2000 - 31 December 2005. Programme leader(s): Danielsen, Kristin. More information online at <http://www.forskningsradet.no/jordbruk>.

{PROJECT} JPG project: Kombinert næringstilførsel og plantevern i økologisk grønnsakdyrking med lite husdyrgjødsel ved bruk av Jorddekke (Plantehakk) og Grønngjødslingsvekster (JPG-prosjektet) [Combined nutrient supply and weed control in organic vegetable growing without animal manure, by using surface mulch (chopped fresh plant material) and green manures (JPG project)]. Runs 01 January 2003 - 31 December 2004. Project leader(s): Løes, Anne-Kristin, Norwegian Centre for Ecological Agriculture.

{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} SELPARTAB: La sélection participative en Agriculture biologique: une stratégie de maitrise des interactions génotype x environnement ? [Participatory plant breeding for organic agriculture: a way to better catch genotype x environment interactions? ]. Runs 01 September 2005 - 31 December 2007. Project leader(s): Desclaux, Dr. Dominique and Chiffoleau, Dr. Yuna.

{PROJECT} MUBIL II: Monitoring der Auswirkungen einer Umstellung auf den biologischen Landbau [MUBIL II: Monitoring the effects of conversion to organic farming]. Runs 01 January 2006 - 31 March 2009. Project leader(s): Freyer, Univ. Prof. Dr. Bernhard, Universität für Bodenkultur (BOKU).

{PROJECT} Odlingssystemets ekologi: gröngödsling som mångfunktionellt redskap i grönsaksodling [The ecology of ghe cultivation system: Green manure as a multifunctional "tool" in vegetable production ]. Runs 01 January 2002 - 31 December 2004. Project leader(s): Rämert, Birgitta, Swedish University of Agricultural Sciences, SLU. More information online at <http://ekoforsk.slu.se/en>.

{PROJECT} Optimierung des biologischen Gemüsebaus durch Gründüngung und Fruchtfolge [Optimization of organic vegetable production by use of greenmanure and crop rotation]. Runs 01 January 2003 - 31 December 2005. Project leader(s): Koller, Martin, Research Institute of Organic Agriculture (FiBL), CH-5070 Frick. More information online at <http://www.fibl.org/forschung/anbautechnik-einjaehrig/biohortikultur/fruchtfolge.php>.

{PROJECT} Optimisation of nitrogen mineralisation from winter cover crops and utilisation by subsequent crops. Runs 01 August 1995 - 30 June 1999. Project leader(s): Unspecified, , Henry Doubleday Research Association.

{FACILITY} Wiebrechtshausen: Organic farm KWS Klostergut Wiebrechtshausen GmbH.

{PROJECT} Organic herbage legume intercropping. Runs 01 January 1994 - 31 December 1995. Project leader(s): Carruthers, S. P., The University of Reading.

{PROJECT} Organic herbage legume intercropping (cont of OF0108). Runs 01 January 1996 - 31 December 1996. Project leader(s): Carruthers, S. P., The University of Reading.

{PROJECT} FertOrtoMedBio: Produzione ed utilizzo di substrati per la vivaistica, miglioramento delle teniche di gestione del suolo e delle strategie di fertilizzazione dei sistemi ortofrutticoli mediterranei da reddito condotti con il metodo dell' agricoltura biologica. [Production and utilization of nursery substrates, improvement of soil management techniques and fertilization strategies of Mediterranean fruit and vegetable production systems managed with organic farming method. ]. Runs 01 January 2006 - 31 December 2008. Project leader(s): Sequi, P.; Canali, S. and Tittarelli, F., CRA - ISNP.

{PROJECT} REPCLOV: Repeated clover subcropping as a strategy for commercial organic grain production. Runs 01 January 2002 - 31 December 2006. Project leader(s): Eltun, Ragnar; Henriksen, Trond; Brandsæter, Lars Olav and Løes, Anne-Kristin, Bioforsk Norwegian Institute for Agricultural and Environmental Research.

{PROJECT} Sortenevaluierung hinsichtlich Flugbrand (Ustilago nuda) und Hartbrand (Ustilago hordei) zur Entwicklung einer Strategie für die Regulierung von saatgutübertragbaren Krankheiten bei der Erzeugung von Wintergerstensaatgut im Ökologischen Landbau [Evaluation of susceptibility to loose smut (Ustilago nuda) and covered smut (Ustilago hordei) for developing a strategy to regulate seed transmitted diseases in winter barley seed production under organic farming]. Runs 01 June 2002 - 31 October 2003. Project leader(s): Müller, Dr. Karl-Josef, Institut für biologisch-dynamische Forschung. More information online at <http://www.bundesprogramm-oekolandbau.de/projekt_02oe129.html>.

{PROJECT} Stickstoffaufnahme und Biomasseertrag von Zwischenfrüchten und deren Auswirkungen auf Ertrag und Qualität der Folgekultur und Nitratgehalt in der Bodenlösung unter den Bedingungen des Ökologischen Landbaus im pannonischen Klimagebiet [Nitrogen uptake and yield of intercropping and their impact on yield and quality of the following crop and nitrate content in soil under the conditions of organic farming in the pannonican climat region]. Runs 01 October 2002 - 31 October 2005. Project leader(s): Freyer, Dr. Bernhard, Universität für Bodenkultur (BOKU). More information online at <http://bokudok.boku.ac.at/bokudok/search_project.show_project?project_id_in=4071>.

{PROJECT} The development of improved guidance on the use of fertility building crops in organic farming (CTE0204). Runs 01 May 2002 - 28 February 2006. Project leader(s): Unspecified, , ADAS Consulting Ltd. More information online at <http://www.organicsoilfertility.co.uk/>.

{FACILITY} University of Newcastle: Nafferton Ecological Farm. More information online at <http://www.ncl.ac.uk/tcoa>.

{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} Wasserschutz im Ökologischen Landbau: Leitfaden für Praxis und Beratung [Water resources quality control in organic farming: Guideline for practical farming and extension]. Runs 15 October 2007 - 30 June 2009. Project leader(s): Haas, Dr. habil. Guido, AgrarIngenieurbüro Haas. More information online at <http://www.agrarhaas.de>.

Ackermann, Kerstin and Saucke, Dr. Helmut (2005) Einfluss des Gemengepartners Leindotter (Camelina sativa L.) auf Beikrautbesatz, Schädlingsbefall und Ertrag in Körnererbsen [Effect of the companion crop linseed dodder (Camelina sativa L.) on weed development, pest incidence and yield in grain peas]. Poster presented at 8. Wissenschaftstagung Ökologischer Landabau - Ende der Nische, Kassel, 1.3.2005 - 4.3.2005; Published in Heß, J and Rahmann, G, Eds. Ende der Nische, Beiträge zur 8. Wissenschaftstagung Ökologischer Landbau.

Andersen, Mette Klindt (2005) Competition and complementarity in annual intercrops - the role of plant available nutrients. Ph.D. Thesis, Department of Soil Science, The Royal Veterinary and Agricultural University, Copenhagen, Denmark. Samfundslitteraur Grafik, Frederiksberg, Copenhagen.

Andersen, Mette Klindt; Hauggaard-Nielsen, Henrik; Ambus, Per and Jensen, Erik Steen (2004) Biomass production, symbiotic nitrogen fixation and inorganic N use in dual and tri-component annual intercrops. Plant and Soil.**

Andersen, Mette Klindt; Hauggaard-Nielsen, Henrik; Ambus, Per and Jensen, Erik Steen (2004) Biomass production, symbiotic nitrogen fixation and inorganic N use in dual and tri-component annual intercrops. Plant and Soil 266. Online at <http://www.springerlink.com/link.asp?id=j081w72368818035>

Anon, (2002) Advantages and disadvantages of different break crops in organic grass/arable rotations (OF0143). Report, Scottish Agricultural College.

Arcand, M M; Lynch, D H; Voroney, R P and van Straaten, P (2006) Improving green manure quality with phosphate rocks in Ontario Canada. 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. 283-287.

Askegaard, Margrethe (2006) GROWTH AND RESIDUAL EFFECTS OF LEGUME AND NON-LEGUME CATCH CROP SPECIES ON COARSE SAND. [preprint]

Askegaard, Margrethe (2006) RESIDUAL EFFECT AND LEACHING OF N AND K IN CROPPING SYSTEMS WITH LEGUME AND NON-LEGUME CATCH CROPS ON A COARSE SAND. [preprint]

Askegaard, Margrethe (2002) Forsøg med efterafgrøder på sandjord. In Økologisk Jordbrug, 1. November, No 275, page 6.

Askegaard, Margrethe; Eriksen, Jørgen and Olesen, Jørgen E. (2003) Exchangeable potassium and potassium balances in organic crop rotations on a coarse sandy soil. Soil Use and Management 19, 96-103 19:pp. 96-103.**

Askegaard, Margrethe; Olesen, Jørgen E. and Rasmussen, Ilse A. (2005) Long-term organic crop rotation experiments for cereal production – yield development and dynamics. Paper presented at Researching Sustainable Systems - International Scientific Conference on Organic Agriculture, Adelaide, Australia, September 21-23, 2005.

Aspray, Claire (2004) Organic Cereal Variety and Variety Mixture Trials 1999 - 2003. Report.

Auerswald, Karl; Kainz, Max and Fiener, Peter (2003) Soil erosion potential of organic versus conventional farming evaluated by USLE modelling of cropping statistics for agricultural districts in Bavaria . Soil Use and Mangemement 19:pp. 305-311.

Azo, W M; Lane, G P F; Cannon, N C and Davies, W P (2006) Dry matter yields and quality of organic lupin/cereal mixtures for wholecrop forage. 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. 93-96.

Østergård, H. (2005) Composition of variety mixtures in barley and wheat. Paper presented at Assessment of varietal characteristics in diverse crops and low-input specifically organic growing systems, Edinburgh, 3-6 July 2005; Published in http://www.cost860.dk/activities/workshops/Assessment/default.asp.

Østergård, H. and Backes, G. (2006) Changes in variety composition in spring barley mixtures over years. Poster presented at COST SUSVAR workshop on cereal crop diversity: Implications for production and products., La Besse (FR), 13-14 June 2006; Published in Østergård, H. and Fontaine, L., Eds. Proceedings of COST SUSVAR workshop on cereal crop diversity: Implications for production and products., page 69.

Østergård, H. and Jensen, J. Willas (2006) Sortsblandingers udbyttestabilitet og udbyttepotentiale. Paper presented at Plantekongres 2006, Herning, Denmark, 10-11. January 2006; Published in Proceedings Plantekongres 2006, Herning 10-11. januar 2006, page pp. 340-341.

Østergård, H. and Jensen, J.W. (2005) Characteristics of spring barley varieties and crop diversity for organic farming and variety testing. Paper presented at ENVIRFOOD Seminar on “Environmental friendly food production system: requirements for plant breeding and seed production”, Talsi, Latvia, May 31-June 3, 2005; Published in Belicka, I., Eds. Proceedings from ENVIRFOOD Seminar on “Environmental friendly food production system: requirements for plant breeding and seed production” May 31-June 3, 2005, Talsi, Latvia,, page pp. 14-19.

Østergård, H. and Jensen, J.W. (2005) Increased yield and yield stability in variety mixtures of spring barley. DARCOFenews. Online at <http://www.darcof.dk/enews/sep05/mixture.html>

Østergård, H.; Kristensen, K.; Hovmøller, M.S. and Jensen, J.W. (2004) Disease severity and grain yield of spring barley variety mixtures grown under organic and conventional conditions. Paper presented at Workshop on Resistance of cereals to biotic stresses., IHAR Radzikóv, Poland, November 28 - December 1, 2004, page pp. 87-90.

Østergård, H.; Kristensen, K. and Jensen, J.W. (2005) Stability of variety mixtures of spring barley. Paper presented at COST SUSVAR/ECO-PB Workshop on Organic Plant Breeding Strategies and the Use of Molecular markers, Driebergen, The Netherlands, 17-19 January 2005; Published in Lammerts van Bueren, E.T.; Goldringer, I. and Østergård, H., Eds. Proceedings of the COST SUSVAR/ECO-PB Workshop on Organic Plant Breeding Strategies and the Use of Molecular markers, 17-19 January 2005. Driebergen, The Netherlands, page pp. 28-30.

Østergård, Hanne (2002) Characteristics of spring barley varieties for organic farming. Poster presented at 1. international symposium on organic seed production and plant breeding, Berlin, 21 - 22 Nov., 2002; Published in Proceedings of the 1. international symposium on organic seed production and plant breeding, page 72.

Østergård, Hanne; Bardtrum, Lars and Jensen, Jakob Willas (2004) Sortsblandinger af byg til økologisk jordbrug [Variety mixtures of barley for organic farming]. FØJOenyt, Nyhedsbrev fra Forskningscenter for Økologisk Jordbrug(2). Online at <http://www.foejo.dk/enyt2/enyt/april04/sorter.html>

Østergård, Hanne; Kristensen, Kristian; Hovmøller, Mogens and Willas, Jakob (2006) Genetic potential for grain yield in spring barley varieties and variety mixtures in variable organic environments. Paper presented at Joint Organic Congress, Odense, Denmark, May 30-31, 2006..

Bachinger, J. and Zander, P. (2002) Modell zur Unterstützung strategischer und taktischer Fruchtfolgeplanung im Ökologischen Landbau [Model to support for strategic and tactical crop rotation planning in Organic Agriculture]. Paper presented at 45. Jahrestagung der Gesellschaft für Pflanzenbauwissenschaften, Berlin, 26.-28. September 2002; Published in Maidl, Franz-Xaver and Diepenbrock, Wulf, Eds. 45. Jahrestagung vom 26. bis 28. September 2002 in Berlin: Kurzfassungen der Vorträge und Poster, page pp. 88-89. Mitteilungen der Gesellschaft für Pflanzenbauwissenschaften 14. Verlag Freisinger Künstlerpresse W. Bode.

Bachinger, J. and Zander, P. (2001) Crop rotation planning tool for organic farms. Paper presented at Third European Conference of the European Federation for Information Technology in Agriculture, Food and the Environment (EFITA 2001), Montpellier, France, 18-20 June 2001; Published in Steffe, J., Eds. Proceeding of the third European Conference of the European Federation for Information Technology in Agriculture, Food and the Environment (EFITA 2001) 1, page pp. 89-94.

Bachinger, J. and Zander, P. (2001) Entwicklung eines Modells zur Generierung und Bewertung standort- und situationsangepasster Fruchtfolgen im Ökologischen Landbau [Development of a model for generation and evaluation of site- and situation-adapted crop rotations in organic agriculture]. Paper presented at 6. Wissenschaftstagung zum Ökologischen Landbau, Technische Universität München Freising-Weihenstephan, 6-8 März 2001; Published in Reents, Hans-Jürgen, Eds. Beiträge zur 6. Wissenschaftstagung zum Ökologischen Land- und Gartenbau, Von Leit-Bildern zu Leit-Linien, page pp. 167-170. Verlag Dr. Köster.

Bachinger, J. and Zander, P. (2000) Modelling crop rotations of organic farms [Modellboildung von Fruchtfolgen in der ökologischen Landwirtschaft]. Paper presented at The world grows organic, 13th IFOAM International Scientific Conference, Basel, Switzerland, 27-31 August 2000; Published in Alföldi, T.; Lockeretz, W. and Niggli, U., Eds. The world grows organic, Proceedings 13th International IFOAM Scientific Conference, page 144. vdf Hochschulverlag, Zürich.

Bachinger, Johann and Zander, Peter (2003) Planungswerkzeuge zur Optimierung der Stickstoffversorgung in Anbausystemen des Ökologischen Landbaus - Standort- und vorfruchtabhängige Kalkulation der N-Salden von Anbauverfahren [A Planning Tool for Optimal Nitrogen Supply in Organic Crop Production - Calculation of site- and preceding crop-specific nitrogen balances of cropping systems], in Rahmann, Gerold and Nieberg, Hiltrud, Eds. Ressortforschung für den ökologischen Landbau 2002. Landbauforschung Völkenrode Sonderheft no. 256, page pp. 21-30. Institut für ökologischen Landbau (OEL) und Institut für Betriebswirtschaft, Agrarstruktur und ländliche Räume (BAL), Bundesforschungsanstalt für Landwirtschaft (FAL).

Bachinger, Dr. Johann; Stein-Bachinger, Dr. Karin and Fuchs, Sarah (2006) Ecological and agronomic evaluation of crop rotations in organic farming systems. Paper presented at Joint Organic Congress, Odense, Denmark, May 30-31, 2006..

Ball, B C (2006) Nitrous oxide emissions from organic farming: the importance of well-timed ley cultivation. 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. 317-320.

Baresel, J. P.; Reents, H.J. and Schenkel, W. (2003) Screening alternativer Leguminosenarten auf ihre Eignung zur Gründüngung und zum Mischanbau im ökologischen Landbau [Screening of leguminous plant species to assess their useability for green manuring and for mixed cropping in organic farming ]. Report, Geschäftsstelle Bundesprogramm Ökologischer Landbau, Bundesanstalt für Landwirtschaft und Ernährung, Bonn.

Baresel, Jörg Peter and Reents, Hans Jürgen (2007) Einjährige Medicago- und Trifoliumarten als Bodenbedecker in Lebendmulchsystemen: Adaptation und Konkurrenzverhältnisse [Annual Clovers and Medics in living Mulch Systems: Adaptation and Competition ]. Paper presented at Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Stuttgart, Deutschland, 20.-23.03.2007.

Böhler, Daniel and Dierauer, Hansueli (2006) Anbaubegleitung Körnerleguminosen. Praxisbericht zur Anbaubegleitung der Körnerleguminosen. FiBL-Bericht, Forschungsinstitut für biologischen Landbau (FiBL) CH-Frick.

Böhm, Herwart (2007) Auswirkungen einer Weißklee-Untersaat in Winterraps auf den Ertrag der Folgekultur Weizen [Effect of a white clover underseed in oil seed rape on yield of the following crop wheat ]. Poster presented at Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Stuttgart, Deutschland, 20.-23. März 2007.

Böhm, Herwart (2007) Rapsanbau im ökologischen Landbau – Auswirkungen von Vorfrucht, Reihen-abstand und Untersaat mit Weißklee auf den Ertrag [Oil seed rape cultivation in organic farming – Effect of preceding crop, row distance and undersown white clover on yield]. Paper presented at Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Stuttgart, Deutschland, 20.-23.03.2007.

Böhm, Herwart (2002) Anspruchsvolle Knolle: Ökologischer Anbau von Speisekartoffeln. Neue Landwirtschaft 13(9):pp. 26-30.

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

Böhm, Herwart (2002) Möglichkeiten und Grenzen des ökologischen Anbaus von Speisekartoffeln. Kartoffeltrends: Qualität von Speisekartoffeln:pp. 23-29.

Becker, Konstantin and Leithold, Günter (2007) Das Anbaukonzept Weite Reihe bei verschiedenen Druschkulturen unter Berücksichtung des Vorfruchtwertes . Paper presented at Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Stuttgart, Deutschland, 20.-23.03.2007.

Beckmann, Uta; Kolbe, Hartmut; Model, Annett and Russow, Rolf (2001) Ackerbausysteme im ökologischen Landbau unter besonderer Berücksichtigung von N-Bilanz und Effizienzkennzahlen [Organic arable farming systems with particular consideration of nitrogen balance and parameters of efficiency]. UFZ-Bericht no. 14, UFZ-Umweltforschungszentrum, Leipzig-Halle.

Beckmann, Uta; Kolbe, Hartmut; Model, Annett and Russow, Rolf (2001) Ackerbausysteme im ökologischen Landbau unter besonderer Berücksichtigung von N-Bilanz und Effizienzkennzahlen [Organic arable farming systems with particular consideration of nitrogen balance and parameters of efficiency]. UFZ-Bericht(14):pp. 1-138.

Beckmann, Uta; Kolbe, Hartmut; Model, Annett and Russow, Rolf (2000) Ackerbausysteme im ökologischen Landbau [Organic arable farming systems]. Report, Sächsische Landesanstalt für Landwirtschaft, Dresden.

Bellostas, Natalia; Hauggaard-Nielsen, Henrik; Andersen, Mette Klindt and Jensen, Erik Steen (2003) Early interference dynamics in intercrops of pea, barley and oilseed rape. Biological Agriculture and Horticulture.*

Bending, Gary (2002) Changes to soil quality indicators following conversion to organic vegetable production (OF0401). Report, Wellesbourne, Horticulture Research International.

Berntsen, J.; Hauggaard-Nielsen, H.; Olesen, J.E.; Petersen, B.M.; Jensen, E.S. and Thomsen, A. (2004) Modelling dry matter production and resource use in intercrops of pea and barley. Field Crops Research 88(1):pp. 69-83.**

Bertelsen, Inger (18. April 2005) Samdyrkning af kartofler og hestebønne samt dyrkning af hestebønne på kamme. Online at <http://www.lr.dk/planteavl/diverse/oekovaerk_hestebonne_kart.htm>. Accessed 18. April 2005

Beste, Dr. Andrea (2005) Bodenqualität als Grundlage für Produktqualität im ökologischen Lanbdau [Soil quality - a precondition for food quality in organic farming.]. Paper presented at XXXI Fortbildungskurs der Interessensgemeinschaft Ökologischer Landbau e.V. "Boden, Pflanze, Tier, Vermarktung", Bad Düben, 10./11.03.2005; Published in Einsiedel, SIGÖL, Roland, Eds. XXXI Fortbildungskurs der Interessensgemeinschaft Ökologischer Landbau e.V. "Boden, Pflanze, Tier, Vermarktung" Heft 15/2005, page pp. 15-26.

Biologische Bundesanstalt für Land- und Forstwirtschaft, Institut für Nematologie und Wirbeltierkunde (2003) Resistenter Ölrettich zur Regulierung von Wurzelgallennematoden im ökologischen Landbau [Use of resistant fodder radish to control root-knot nematodes in organic farming]. Report, Geschäftsstelle Bundesprogramm Ökologischer Landbau, Bundesanstalt für Landwirtschaft und Ernährung (BLE), Bonn.

Bomford, Michael K. (2004) Yield, pest density, and tomato flavor effects of companion planting in garden-scale studies incorporating tomato, basil, and Brussels sprout. Ph.D. thesis, Plant and Soil Science, West Virginia University.

Borgen, Anders (2000) Perennial survival of common bunt (Tilletia tritici) in soil under modern farming practice. Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz 107(2):pp. 182-188.**

Bressoud, miss Frédérique and Parès, miss Laure (2003) Gestion des apports organiques en systèmes de culture maraîchers sous abri [Organic Input management for green house farming systems]. Paper presented at journées nationales de l'ITAB, Perpignan, novembre 2003.

Cagas, Bohumir and Machac, Radek (2002) The effect of grasses grown for seed in mixture with legumes on the incidence of weeds and soil nitrogen content. 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. 53-54. Organic Centre Wales, Institute of Rural Studies, University of Wales Aberystwyth.

CHIARINI, FRANCESCA; GAMBA, URSULA; CONTE, LUCA; TASSO, LORENA; SPAGNOLO, SANDRA and PINNA, MASSIMO (2005) LA TECNICA DELL'UNDERSOWING PER IL CONTROLLO DEGLI INSETTI FITOFAGI SU COLTURE ORTICOLE [PEST CONTROL IN HORTICULTURAL CROPS WITH UNDERSOWING METHOD. ]. Paper presented at "La difesa delle colture in agricoltura biologica" convegno AIPP (Associazione Italiana Protezione Piante-Italian Association for Plant Protection), Cesena (FO) Italy, 23-24 novembre 2004; Published in TURCHI, ANNALISA and SALVATI, MARCELLO, Eds. BOLLETTINO DI AGRICOLTURA BIOLOGICA A CURA DEL CRAB (Reference Center for Organic Farming of Turin province)(2), page pp. 47-57. PROVINCIA DI TORINO.

Christiansen, J.S.; Thorup-Kristensen, K. and Kristensen, H.L. (2006) Root development of beetroot, sweet corn and celeriac, and soil N content after incorporation of green manure [Rodudvikling hos rødbede, sukkermajs og rodselleri, samt jordens kvælstofindhold efter nedpløjning af grøngødning]. Journal of Horticultural Science & Biotechnology 81(5):pp. 831-838.

Clements, Dr R. O. (2002) Clover:cereal bi-cropping for organic farms (OF0173). Report, Institute of Grassland and Environmental Research.

Clerc, Maurice and Taramarcaz, Josy (2007) Ferme pilote de Mapraz - Rapport intermédiaire (2000-2005). Report, AGRIDEA Dévelpoment de l'Agriculture et de l'Espace Rural, CH-Lausanne.

Cormack, W F (2006) Constraints to the sustainability of a stockless arable rotation. Paper presented at What can organic farming deliver? COR 2006, Heriot-Watt University, Edinburgh, 18-20 September 2006. Association of Applied Biologists.

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

Cormack, William (2005) Assessing the sustainability of a stockless arable rotation (OF0318). Report, ADAS UK Ltd.

Cuttle, S P (2006) Development of the FBC model to estimate the nitrogen available from fertility -building crops in 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. 259-262.

Dahlmann, Christoph and von Fragstein und Niemsdorff, Peter (2007) Einfluss unterschiedlicher Konkurrenzverhältnisse beim Mischanbau von Som-mergerste und Erbse auf den Kornertrag, die Kornqualitäten und der symbiontischen N2-Fixierung [Influence of different competitions in spring barley-field pea intercropping on grain yield, quality and the proportion of nitrogen derived from the atmosphere]. Paper presented at Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Stuttgart, Deutschland, 20.-23.03.2007.

Dahlmann, Christoph and von Fragstein und Niemsdorff, Peter (2006) Influence of different seed rates, sowing techniques and N supply on grain yield and quality parameters in intercropping systems. Paper presented at Joint Organic Congress, Odense, Denmark, May 30-31, 2006..

Daniel, Marie (2006) Effect of intercropping on disease severity in organic farming. Report, Risø National Laboratories.**

Dibet, Audrey; Hauggaard-Nielsen, Henrik; Kasyanova, Elena; Ruske, Rachel; Gooding, Mike; Pristeri, Aurelio; Monti, Michele; Dahlmann, Christoph; von Fragstein, Peter; Ambus, Per; Jensen, Erik and Crozat, Yves (2006) Pea-barley intercropping for the control of weeds in European organic cropping systems. Paper presented at Joint Organic Congress, Odense, Denmark, May 30-31, 2006..

Dreymann, Sonja; Loges, R. and Taube, F. (2003) Einfluss der Kleegrasnutzung auf die N-Versorgung und Ertragsleistung marktfähiger Folgefrüchte unter Berücksichtigung einer variierten organischen Düngung [Influence of different used clover/grass swards on N-supply and yield of subsequent crops considering a different organic manuring]. Paper presented at 7. Wissenschaftstagung zum Ökologischen Landbau "Ökologischer Landbau der Zukunft", Wien, 24. - 26. Februar 2003; Published in Freyer, Bernhard, Eds. Beiträge zur 7. Wissenschaftstagung zum Ökologischen Landbau "Ökologischer Landbau der Zukunft", page pp. 89-92. Universität für Bodenkultur Wien - Institut für ökologischen Landbau.

Elmholt, S.; Schjønning, P. and Munkholm, L.J. (2005) Er der krummer i din jord – eller er det bare knolde [Does your soil form crumbs or clods?]. FØJOenyt. Nyhedsbrev fra Forskningscenter for Økologisk Jordbrug og Fødevaresystemer(3). Online at <http://www.foejo.dk/enyt2/enyt/jun05/struktur.html>*

Elmholt, S.; Schjønning, P. and Munkholm, L.J. (2005) Soil aggregation – a matter of proper management. DARCOFenews. Newsletter from Danish Research Centre for Organic Food and Farming(2). Online at <http://www.darcof.dk/enews/jun05/crumb.html>*

Engström, Agr Lena and Lindén, AgrD Börje (2008) Kväveförsörjning i ekologiska odlingssystem med vall - höstraps - vete. [N-supply in organic crop systems with ley - winter oilseed rape - wheat.]. Report no. 16, Division of precision agriculture, Department of Soil Sciences, Swedish University of Agricultural Sciences.

Eriksen, J; Søegaard, K and Kristensen, T (2007) Afgræsning af blandinger med bælgplanter og cikorie. Nyhedsbrev fra Forskningscenter for Økologisk Jordbrug og Fødevaresystemer. Online at <http://www.foejo.dk/nyhedsmail/august_2007/ko.html>

Eriksen, J; Søegaard, K; Kristensen, T; Fretté, XC; Wiking, L and Holm Nielsen, J (2007) Herbage and milk productivity and quality when grazing different legumes and herbs. Poster presented at 14th symposium of the European Grassland Federation, Ghent, 3-5 September; Published in Grassland Science in Europe 12, page pp. 212-214.

Eriksen, J; Søegaard, K; Kristensen, T; Fretté, XC; Wiking, L and Holm Nielsen, J (2006) Herbage and milk productivity and quality when grazing different legumes and herbs. Paper presented at COST 852 Quality Legume-based Forage Systems for Contrasting Environments. Final Meeting, Gumpenstein, Austria, Aug 30 - Sep 2; Published in Book of abstracts, page 42.

Eyre, M.D.; Volakakis, N.; Shotton, P.N. and Leifert, C. (2007) The Effects of Crop Type and Production Systems on the Activity of Beneficial Invertebrates. Paper presented at 3rd QLIF Congress: Improving Sustainability in Organic and Low Input Food Production Systems, University of Hohenheim, Germany, March 20-23, 2007.

Farthofer, R.; Friedel, J. K.; Pietsch, G. and Freyer, B. (2004) Stickstoff-Auswaschungsverluste und Nachfruchteffekte von Luzerne (Schnitt- und Grünbrachenutzung) auf Getreide-Nachfrüchte im Ökologischen Landbau unter pannonischen Standortbedingungen in Ostösterreich. Mitt. Ges. Pflanzenbauwiss.(16):pp. 67-68.

Farthofer, R.; Friedel, J. K.; Pietsch, G.; Rinnhofer, T.; Loiskandl, W. and Freyer, B. (2004) Plant biomass nitrogen and effects on the risk of nitrate leaching of intercrops under organic farming in Eastern Austria. Paper presented at EUROSOIL 2004, Freiburg, Germany, Sept. 4th to 12th.

Fricke, Thomas and Wachendorf, Michael (2007) Abschätzung von Bestandeseigenschaften in Leguminosengras-Gemengen mit nichtdestruktiven Methoden [Prediction of Crop Properties in Legume/Grass Mixtures by non-destructive methods ]. Poster presented at Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Stuttgart, Deutschland, 20.-23.03.2007.

Gladders, Dr Peter (2002) Development of disease control strategies for organically grown field vegetables (DOVE) (OF0168). Report, Boxworth, ADAS Consulting Ltd.

Goodlass, G; Hatch, D J; Shepherd, M A; King, J A; Cuttle, S P; Roderick, S and Briggs, S (2006) Making the most of soil nitrogen. 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. 269-271.

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.

Gruber, H.; Thamm, U. and Michel, V. (2003) Nitrat-Stickstoff-Gehalte im Boden in einer 6-feldrigen Fruchtfolge [Contents of nitrate-nitrogen in soils with a six-year crop rotation]. Poster presented at 7. Wissenschaftstagung zum Ökologischen Landbau - Ökologischer Landbau der Zukunft, Wien, 24.-26.2.2003; Published in Freyer, Bernhard, Eds. Ökologischer Landbau der Zukunft, Beiträge zur 7. Wissenschaftstagung zum Ökologischen Landbau, page pp. 467-468.

Gruber, Harriet; Thamm, Uwe and Michel, Volker (2004) Einfluss der ökologischen Bewirtschaftung auf die Nitratstickstoffgehalte im Boden. Mitteilungen der Landesforschungsanstalt für Landwirtschaft und Fischerei Mecklenburg-Vorpommern 33.

Gruber, Harriet; Thamm, Uwe and Michel, Volker (2003) Effektive Nutzung des Leguminosenstickstoffs in der Fruchtfolge [Effective use of legume Nitrogen in the crop rotation]. Ökologie & Landbau 127(3/2003):pp. 29-31.

Gruber, Dr. Harriet and Thamm, Uwe (2005) Eignung von ausgewählten Zwischenfruchtgemengen für Anbau und Verfütterung im öklogischen Landbau [Effects of useing catch crops for green manure and fodder on yield and quality]. Forschungsberichte der Landesforschungsanstalt für Landwirtschaft und Fischerei Mecklenburg-Vorpommern no. 4/04, Koordinierungsstelle Ökologischer Landbau, Landesforschungsanstalt für Landwirtschaft und Fischerei Mecklenburg-Vorpommern.

Gunst, Lucie; Krebs, Heinz; Dubois, D. and Forrer, H.-R. (2005) Einfluss der Bewirtschaftungsform, der Vorfrucht und der Düngung auf den Befall von Winterweizenkörnern mit Pilzkrankheiten im DOK-Versuch [The effect of farming system, previous crop and fertilisation on the incidence of ear diseases of wheat in the DOK trial]. Paper presented at 8. Wissenschaftstagung Oekologischer Landbau - Ende der Nische, Kassel, 01.03.2005 - 04.03.2005; Published in Heß, J and Rahmann, G, Eds. Ende der Nische, Beiträge zur 8. Wissenschaftstagung Ökologischer Landbau. kassel university press GmbH, Kassel.

Haas, Guido (2003) Landsberger Gemenge: Artspezifische Konkurrenz und deren Beeinflussung [Landsberger mix: species specific competition and how it is influenced]. Paper presented at 47. Jahrestagung, FAL, Braunschweig, 28.-30. August 2003; Published in AG Grünland und Futterbau in der Gesellschaft für Pflanzenbauwissenschaften e.V., , Eds. 47. Jahrestagung, 28.-30. August 2003, Braunschweig; Referate und Poster, page pp. 87-90. Wissenschaftlicher Fachverlag, Gießen.

Haas, Guido (2003) Leistungsfähigkeit von Winter-Zwischenfrucht-Leguminosen [Efficiency of legumes grown as winter catch crop]. Paper presented at 7. Wissenschaftstagung zum Ökologischen Landbau - Ökologischer Landbau der Zukunft, Universität für Bodenkultur Wien - Institut für ökologischen Landbau, 24 -26.02.2003; Published in Freyer, Bernhard, Eds. Beiträge zur 7. Wissenschaftstagung zum ökologischen Landbau: Ökologischer Landbau der Zukunft, page pp. 515-516. Universität für Bodenkunde Wien - Institut für ökologischen Landbau.

Haas, Guido (2003) Untersaaten in Kartoffeln: Sonnenblume, Mais oder Gelbsenf [Undersown crops in potatoes: sunflower, maize or yellow mustard], in Dokumentation 10 Jahre Leitbetriebe Ökologischer Landbau in Nordrhein-Westfalen. Schriftenreihe des Lehr- und Forschungsschwerpunktes „Umweltverträgliche und Standortgerechte Landwirtschaft“ no. 105, page pp. 105-112. Landwirtschaftliche Fakultät der Rheinischen Friedrich-Wilhelms-Universität Bonn.

Hallmann, Johannes and Rau, Florian (2004) Nachhaltige Wirkung von Ölrettich auf die Abundanzdynamik von Wurzelgallennematoden im ökologischen Landbau [Sustainable effect of fodder radish to the abundance dynamic of northern root-knot nematode Meloidogyne hapla in organic farming]. Report, Institut für Nematologie und Wirbeltierkunde, Biologische Bundesanstalt für Land- und Forstwirtschaft.

Hansen, Preben Klarskov (2006) Beregning af konkurrenceindeks (KI) [Calculation of competitive index (KI)], in Deneken, Gerhard and Pedersen, Jon Birger, Eds. Sortsforsøg 2006. Korn bælgsæd og olieplanter. Report, page 7, 21, 27-28 & 31. Danmarks JordbrugsForskning og Dansk Landbrugsrådgvning, Landcentret, Planteavl.

Hansen, Preben Klarskov (2005) Beregning af konkurrenceindeks (KI) [Calculation of competitive index (KI)], in Deneken, Gerhard and Pedersen, Jon Birger, Eds. Sortsforsøg 2005. Korn bælgsæd og olieplanter. Report, page 7, 21 & 31. Danmarks JordbrugsForskning og Dansk Landbrugsrådgvning, Landcentret, Planteavl.

Hansen, Preben Klarskov (2005) Suggested outline of the thesis "Crop-Weed interactions determined by sensor techniques"(COMSENS). Paper presented at Midtterm Seminar, KVL, 25. October 2005, page pp. 1-2.

Hansen, Preben Klarskov (2003) Beregning af konkurrenceindeks (KI) [Calculation of competitive index (KI)], in Deneken, Gerhard and Pedersen, Jon Birger, Eds. Sortsforsøg 2003. Korn bælgsæd og olieplanter. Report, page 7. Danmarks JordbrugsForskning og Dansk Landbrugsrådgvning, Landcentret, Planteavl.

Hansen, Preben Klarskov; Kristensen, Kristian and Rasmussen, Ilse A. (2004) Forsøgsbeskrivelse af specialforsøg BAR-OF WP2 2004. Report, Afdeling for Plantebeskyttelse, Danmarks JordbrugsForskning.

Hansen, Preben Klarskov; Kristensen, Kristian and Willas, Jakob (2007) A weed suppressive index for spring barley (Hordeum vulgare L.) varieties. Weed Research Oxford.

Hansen, Preben Klarskov; Kristensen, Kristian and Willas, Jakob (2006) A suppressive index for spring barley varieties. [preprint]

Hansen, Preben Klarskov; Kristensen, Kristian and Willas, Jakob (2006) Forskellige sorters konkurrenceevne overfor ukrudt [Competitiveness in different varieties against weeds]. Paper presented at 3. Danske Plantekongres, Herrning, 10.-11. Januar 2006; Published in Sammendrag af indlæg 3. Danske Plantekongres. Herrning 10.-11. Januar 2006, page pp. 342-343. Danmarks JordbrugsForskning & Landcentret.

Hansen, Preben Klarskov and Rasmussen, Ilse A (2005) Sorters vekselvirkning med miljøet, betydning af mekanisk ukrudtsbekæmpelse [Genotype*Environment interaction, importance of mechanical weed control]. [oral] Presentation at BAR-OF netværksmøde, Forskningscenter Risø, 14. december 2005.

Hansen, Preben Klarskov; Rasmussen, Ilse A.; Holst, Niels and Andreasen, Christian (2007) Tolerance of four spring barley (Hordeum vulgare L.) varieties to weed harrowing. Weed Research 47(3):pp. 241-251.

Hansen, Preben Klarskov; Rasmussen, Ilse A.; Holst, Niels and Andreasen, Christian (2006) Tolerance to weed harrowing in four spring barley varieties. [preprint]

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]. Report, Afdeling for Plantebeskyttelse, Danmarks JordbrugsForskning.

Hauggaard-Nielsen, H.; Jensen, E.S.; Aveline, A. and Crozat, Y. (2004) Grain legumes and nitrate leaching: significance and prevention. [oral] Presentation at Legumes for the benefit of agriculture, nutrition and the environment, Palais de Congrès, Dijon, France, 7 -11 June 2004.**

Hauggaard-Nielsen, Henrik (2004) Blandingsforhold ved samdyrkning af hvede og ærter [Proportion of pea and wheat when intercropped]. [oral] Presentation at Produktion af kvalitetshvede ved samdyrkning med bælgsæd, Økologiens Hus, Århus, Denmark, 29 January.*

Hauggaard-Nielsen, Henrik (2002) Blandsæd – bland afgrøderne og høst fordele. [oral] Presentation at Salg af økologiske produkter - DLG Økologi, FAF huset Odense, 16 January, 2002.

Hauggaard-Nielsen, Henrik (2002) Dyrkning af blandinger og høstteknologi. [oral] Presentation at Samdyrkning og høstteknologi - New Holland DK, NEW HOLLAND DANMARK A/S, Bibliotekvej 58, DK - 2650 HVIDOVRE, 19 April 2002.

Hauggaard-Nielsen, Henrik (2002) Dyrkning af blandingsafgrøder med bælgsæd. [oral] Presentation at Temadag om dyrkning af proteinafgrøder, Økologisk landsforening/Økologisk Rådgivning, Lyngby Landbrugsskole, Roskilde, Danmark, 5 December.

Hauggaard-Nielsen, Henrik (2002) Grain legumes in organic cropping systems. [oral] Presentation at Grain Legumes for Sustainable Agriculture, Strasbourg, France, 26-28 September 2002.

Hauggaard-Nielsen, Henrik (2001) Dyrkning af blandingsafgrøder med bælgsæd. [oral] Presentation at Økologiske proteinafgrøder - dyrkning og fodring, Snoghøj IT-folkehøjskole, 28 November 2001.

Hauggaard-Nielsen, Henrik; Ambus, Per; Brisson, Nadine; Crozat, Yves; Dahlmann, Christoph; Dibet, Audrey; von Fragstein und Niemsdorff, Peter; Gooding, Mike; Kasyanova, Elena; Launay, Marie; Monti, Michele; Pristeri, Aurelio and Steen Jensen, Erik (2006) Pea-barley intercrops use nitrogen sources 20-30% more efficiently than the sole crops. Paper presented at Joint Organic Congress, Odense, Denmark, May 30-31, 2006..

Hauggaard-Nielsen, Henrik; Ambus, Per and Jensen, Erik Steen (2003) The comparison of nitrogen use and leaching in sole cropped versus intercropped pea and barley. Nutrient Cycling in Agroecosystems 65(3):pp. 289-300.**

Hauggaard-Nielsen, Henrik; Ambus, Per and Jensen, Erik Steen (2001) Interspecific competition, N use and interference with weeds in pea-barley intercropping. Field Crops Research 70(2):pp. 101-109.**

Hauggaard-Nielsen, Henrik; Ambus, Per and Jensen, Erik Steen (2001) Reintroducing grain legume-cereal intercropping for increased protein production in European cropping systems. Paper presented at Fourth European Conference on Grain Legumes: Towards the sustainable production of healthy food, feed and novel products, Cracow, Poland, 8–12 July 2001; Published in Proceedings of the 4th European Conference on Grain Legumes, page pp. 52-53. AEP - European association for grain legume research.**

Hauggaard-Nielsen, Henrik; Ambus, Per and Jensen, Erik Steen (2001) Temporal and spatial root distribution and competition for nitrogen in pea-barley intercropping – a field study employing 32P methodology. Plant and Soil 236(1):pp. 63-74.**

Hauggaard-Nielsen, Henrik; Andersen, Mette Klindt; Joernsgaard, Bjarne and Jensen, Erik Steen (2005) Density and relative frequency effects on competitive interactions and resource use in pea-barley intercrops. Field Crops Research.

Hauggaard-Nielsen, Henrik and Jensen, Erik Steen (2004) Facilitative root interactions in intercrops. Plant and Soil.*

Hauggaard-Nielsen, Henrik and Jensen, Erik Steen (2004) Intercropping strategies for Europe . [oral] Presentation at 5th European Conference on grain legumes: Legumes for the benefit of agriculture, nutrition and the environment, Palais de Congrès, Dijon, France, 7 -11 June 2004.**

Hauggaard-Nielsen, Henrik and Jensen, Erik Steen (2001) Evaluating pea and barley cultivars for complementarity in intercropping at different levels of soil N availability. Field Crops Research 72(3):pp. 185-196.**

Hauggaard-Nielsen, Henrik; Jensen, Erik Steen; Aveline, Anne and Crozat, Yves (2004) Grain legumes and nitrate leaching: significance and prevention. [oral] Presentation at Legumes for the benefit of agriculture, nutrition and the environment, Palais de Congrès, Dijon, France, 7 -11 June 2004.**

Hauggaard-Nielsen, Henrik; Kinane, Julie; Trydeman Knudsen, Marie and Jensen, Erik Steen (2004) Intercropping and sustainability. [oral] Presentation at ERA Farming Seminar 2004, Videolink conference, Risø, Denmark, 26 February 2004.*

Hauggaard-Nielsen, Henrik and Nikolajsen, Jakob Tranberg (2005) Intercropping with cereals for weed management in grain legumes. Weed Research.

Hauggaard-Nielsen, Henrik; Tranberg Nikolajsen, Jacob and Steen Jensen, Erik (2006) Competitive ability of grain legume-barley intercrops towards volunteer crops and weeds. Paper presented at Joint Organic Congress, Odense, Denmark, May 30-31, 2006..

Hauggaard-nielsen, Henrik; Trydeman Knudsen, Marie; Ravn Jørgensen, Johannes and Steen Jensen, Erik (2006) Intercropping wheat with pea for improved wheat baking quality. Paper presented at Joint Organic Congress, Odense, Denmark, May 30-31, 2006..

Høgh-Jensen, Henning; Nielsen, Bea and Thamsborg, Stig Milan (2006) Productivity and quality, competition and facilitation of chicory in ryegrass/legume-based pastures under various nitrogen supply levels [Productivity and quality, competition and facilitation of chicory in ryegrass/legume-based pastures under various nitrogen supply levels]. European Journal of Agronomy 24. Online at <http://www.elsevier.com/wps/find/journaldescription.cws_home/600108/description#description>*

Høgh-Jensen, Dr Henning and Schjoerring, Dr Jan K. (2001) Rhizodeposition of nitrogen by red clover, white clover and ryegrass leys. Soil Biology & Biochemistry 33:pp. 439-448.

Hein, Waltraud and Waschl, Hermann (2007) Auswaschungsverluste unter biologischer und konventioneller Bewirtschaftung [Leaching losses in organic and conventional management]. Poster presented at Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Stuttgart, Deutschland, 20.-23.03.2007.

Hiltbrunner, J.; Liedgens, M.; Stamp, P. and Streit, B. (2005) Einfluss von lebenden Mulchen auf die Begleitflora und die Weizenerträge unter Bedingungen des Ökolandbau [Impact of living mulches on weeds and yield of winter wheat in organic farming]. Poster presented at 8. Wissenschaftstagung Ökologischer Landbau - Ende der Nische, Kassel, 01.03.2005 - 04.03.2005; Published in Heß, J and Rahmann, G, Eds. Ende der Nische, Beiträge zur 8. Wissenschaftstagung Ökologischer Landbau.

Himstedt, Maike; Fricke, Thomas and Wachendorf, Michael (2007) Entwicklung einer bildanalytischen Methode zur Abschätzung des Leguminosenanteils in Futterbaugemengen [Image analysis as a tool to evaluate characteristics of Clover/Grass Mixtures ]. Poster presented at Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Stuttgart, Deutschland, 20.-23.03.2007.

Hof, C.; Schmidtke, K. and Rauber, R. (2005) Wirkung des Gemengeanbaus mit Körnerleguminosen sowie der Standraumzuteilung und der Saatstärke auf Kornertrag und Kornproteingehalt von Winterweizen [Effects of intercropping, spatial arrangement and seeding rate on grain yield and grain protein content of winter wheat]. Paper presented at 8. Wissenschaftstagung Ökologischer Landbau, Kassel, 01.03.2005 - 04.03.2005; Published in Heß, J and Rahmann, G, Eds. Ende der Nische, Beiträge zur 8. Wissenschaftstagung Ökologischer Landbau. kassel university press GmbH, Kassel.

Hof-Kautz, Claudia; Hochmuth, Christoph; Schmidtke, Knut and Rauber, Rolf (2007) Wirkung des Gemengeanbaus mit Winterkörnerleguminosen sowie der Standraumzuteilung auf Kornertrag und Backqualität von Winterweizen [Effects of intercropping with winter grain legumes and spatial arrangement on grain yield and backing quality of winter wheat]. Poster presented at Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Stuttgart, Deutschland, 20.-23.03.2007.

Hrbek, Regina; Freyer, Bernhard; Amon, Thomas and Friedel, Jürgen K. (2007) Nachhaltige Fruchtf