Items affiliated to "CROPSYS - The effect of cropping systems on production and the environment"

A

Ambus, Per (2009) Mindre økologisk lattergas - Økologisk planteavl belaster ikke miljøet i samme grad som konventionel planteavl. Dette udsagn gælder måske også for udslippet af lattergas. [Less organic nitrous oxide - Organic cropping systems have less impacts in the environment compared with conventional cropping systems. Perhaps this statement is true also concerning emissions of nitrous oxide.] Økologisk Jordbrug, February 2009 (426).

Andersen, Astrid J. and Petersen, Søren O. (2009) Effects of C and N availability and soil-water potential interactions on N2O evolution and PLFA composition. Soil Biology and Biochemistry, 41 (8), pp. 1726-1733.

Askegaard, Margrethe (2002) Kvælstofudvaskningen i de økologiske sædskifter (Sædskiftet holder på kvælstoffet). Økologisk Jordbrug, April 2002, 263, p. 8.

Askegaard, Margrethe (2001) Nyt fra de økologiske sædskifteforsøg. Økologisk Jordbrug, September 2001, 247, p. 6.

Askegaard, Margrethe (2001) Nyt fra de økologiske sædskifteforsøg (Nyt fra forsøg med de økologiske sædskifter). Økologisk Jordbrug, May 2001, 241, p. 6.

Askegaard, Margrethe (2000) Nyt fra sædskifteforsøg. Økologisk Jordbrug, September 2000, 223, p. 8.

Askegaard, Margrethe (2000) Nyt fra Forskningscenter for Økologisk Jordbrug – fra det økologiske sædskifteforsøg (Forår uden problemer). Økologisk Jordbrug, May 2000, 217, p. 8.

Askegaard, Margrethe and Eriksen, Jørgen (2002) Exchangeable potassium in soil as indicator of potassium status in an organic crop rotation on loamy sand. Soil Use and Management, 18, pp. 84-90.

Askegaard, Margrethe and Eriksen, Jørgen (2000) Potassium retention and leaching in an organic crop rotation on loamy sand as affected by contrasting potassium budgets. Soil Use and Management, 16, pp. 200-205.

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, pp. 96-103.

Askegaard, Margrethe; Olesen, Jørgen E.; Rasmussen, Ilse A.; Driessen, Eugene; Nielsen, Erling; Thomsen, Henning C.; Bak, Holger and Lindberg, Julie F. (2004) ØKOLOGISKE SÆDSKIFTER TIL PRODUKTION AF KORN. [Organic crop rotations for cereal production.] Grøn Viden, Markbrug (298), pp. 1-20.

Askegaard, Margrethe; Olesen, Jørgen E. and Rasmussen, Ilse Ankær (2002) Lokalitetens og dyrkningsvilkårenes betydning i økologisk planteavl. In: Corell, A.; Kjær, L.B. and Frederiksen, H.B. (Eds.) DJF rapport Markbrug, 78, pp. 67-70.

Askegaard, Margrethe; Rasmussen, Ilse A. and Olesen, Jørgen E. (2004) Resultater med efterafgrøder i økologiske forsøg – hvordan kan disse resultater udnyttes på økologiske og konventionelle bedrifter. Speech at: Planteproduktion 2004, Herning, 13-14 Januar.

Askegaard, Margrethe and Olesen, Jørgen E. (2011) Økologiske planteavlssædskifter – erfaringer og produktivitet. [Organic crop rotations-experiences and productivity.] In: Plantekongres 2011.

Askegaard, Margrethe and Olesen, Jørgen E. (2011) N-udvaskning fra økologiske planteavlssædskifter. [Nitrogen leaching from organic crop rotations.] In: Plantekongres 2011.

Askegaard, Margrethe; Olesen, Jørgen E. and Kristensen, Kristian (2005) Nitrate leaching from organic arable crop rotations: effects of location, manure and catch crop. Soil Use and Management, 21, pp. 181-188.

Askegaard, Margrethe; Olesen, Jørgen E.; Rasmussen, Ilse A. and Kristensen, Kristian (2011) Nitrate leaching from organic arable crop rotations is mostly determined by autumn field management. Agriculture, Ecosystems and Environment, 142 (3-4), pp. 149-160.

B

Bertelsen, Inger and Rasmussen, Ilse A. (2004) Ukrudtets udvikling i de økologiske sædskifteforsøg. [Development in weed infestation in organic trials with crop rotations.] . Online at http://www.lr.dk/planteavl/diverse/oekovaerk_ukrudtets_udvikl.htm.

C

Carter, Mette S.; Albert, Kristian R. and Ambus, Prof. Per (2009) Is organic farming a mitigation option? – A study on N2O emission from winter wheat. Poster at: International Scientific Congress on Climate Change, Copenhagen, Denmark, 10-12 March. [Unpublished]

Carter, Mette S. and Chirinda, Ngonidzashe (2009) Ingen effekt af dyrkningssystem på drivhusgassen N2O. ICROFS nyt, June 2009.

Carter, Mette S. and Chirinda, Ngonidzashe (2009) No effect of cropping system on the greenhouse gas N2O. ICROFS news, May 2009, 2, pp. 9-10.

Carter, Mette S. (2010) Drivhusgas fra økologiske sædskifter. [Greenhouse gas from organic crop rotations.] Økologi & Erhverv, March 2010, 452, p. 16.

Chirinda, N. (2010) Influence of cropping systems on greenhouse gas emissions. PhD thesis, Copenhagen University . .

Chirinda, N.; Carter, M.S; Albert, K.R.; Ambus, P.; Olesen, J.E.; Porter, J.R. and Petersen, S.O. (2010) Emissions of nitrous oxide from arable organic and conventional cropping systems on two soil types. Agriculture, Ecosystems and Environment, 136, pp. 199-208.

Chirinda, N.; Kracher, D.; Porter, J.R.; Olesen, J.E.; Petersen, B.M.; Doltra, J.; Kiese, R. and Butterbach-Bahl, K. (2010) Simulating soil N2O and CO2 emissions from arable cropping systems using FASSET and MOBILE-DNDC. Plant and Soil, 343 (1-2), pp. 139-160.

Chirinda, N.; Olesen, J.E.; Porter, J.R. and Schjønning, P. (2010) Soil properties, crop production and greenhouse gas emissions from organic and inorganic fertilizer-based arable cropping systems. Agriculture, Ecosystems and Environment, 139, pp. 584-594.

Chirinda, N.; Olesen, Jørgen E. and Porter, J.R. (2012) Root carbon input in organic and inorganic fertilizer-based systems. Agriculture, Ecosystems and Environment, 359, pp. 321-333.

Chirinda, N.; Olesen, Jørgen E. and Porter, J.R. (2011) High Root Biomass FOR cereal crops increases carbon sequestration in organic Arable systems. Paper at: 17th IFOAM Organic world congress.

Chirinda, Ngonidzashe; Olesen, J.E. and Porter, J.R. (2011) Post cold-storage conditioning time affects soil denitrifying enzyme activity. Communications in Soil Science and Plant Analysis, 42 (17), pp. 2160-2167.

Christensen, Soren; Alphei, Jörg; Vestergård, Mette and Vestergaard, Peter (2007) Nematode migration and nutrient diffusion between vetch and barley material in soil. Soil Biology and Biochemistry, 39, pp. 1410-1417.

Christensen, Soren; Bjornlund, Lisa and Vestergård, Mette (2007) Decomposer biomass in the rhizosphere to assess rhizodposition. Oikos, 116, pp. 65-74.

Cirujeda, A.; Melander, B.; Rasmussen, K. and Rasmussen, I.A. (2003) Relationship between speed, soil movement into the cereal row and intra-row weed control efficacy by weed harrowing. Weed Research, 43 (4), pp. 285-296.

D

de Jonge, L.W.; Moldrup, P. and Schjønning, P. (2009) Soil Infrastructure, Interfaces & Translocation Processes in Inner Space (“Soil-it-is”): Towards a Road Map for the Constraints and Crossroads of Soil Architecture and Biophysical Processes. Hydrology and Earth System Sciences, 13, pp. 1485-1502.

Djurhuus, Jørgen and Olesen, Jørgen E. (2000) Characterisation of four sites in Denmark for long-term experiments on crop rotations in organic farming. DIAS report, no. 33. Danish Institute of Agricultural Sciences .

Doltra, Jordi; Ølsen, Jørgen E. and Lægdsmand, Mette (2009) SIMULATING WINTER WHEAT YIELD AND NITROGEN LEACHING FROM ORGANIC AND CONVENTIONAL CROP ROTATIONS. In: Grignani, C.; Acutis, M.; Zavattaro, L.; Bechini, L.; Bertora, C.; Marino Gallina, P. and Sacco, D. (Eds.) Proceedings of the 16th Nitrogen Workshop: Connecting different scales of nitrogen use in agriculture, Università degli Studi di Torino; Università degli Studi di Milano, Turin, (Italy), pp. 519-520.

Doltra, Jordi; Lægdsmand, Mette and Olesen, Jørgen Eivind (2011) Cereal yield and quality as affected by N availability in organic and conventional crop rotations in Denmark: a combined modeling and experimental approach. European Journal of Agronomy, 34, pp. 83-95.

Doltra, Jordi and Olesen, Jørgen Eivind (2013) The role of catch crops in the ecological intensification of spring cereals in organic farming under Nordic climate. European Journal of Agronomy, 44, pp. 98-108.

E

Elmholt, S.; Schjønning, P.; Munkholm, L.J. and Debosz, K. (2008) Soil management effects on aggregate stability and biological binding. Geoderma, 144 (3-4), pp. 455-467.

Eriksen, J.; Askegaard, M. and Kristensen, K. (2004) Nitrate leaching from an organic dairy crop rotation: the effect of manure type, N-input and improved crop rotation. Soil Use and Management, 20, pp. 48-54.

Eriksen, J.; Olesen, J.E. and Askegaard, M. (2002) Sulphate leaching and sulphur balances of an organic crop rotation on three Danish soils. European Journal of Agronomy, 17, pp. 1-9.

G

Grundy, A.C.; Peters, N.C.B.; Rasmussen, I.A.; Hartmann, K.A.; Sattin, M.; Andersson, L.; Mead, A.; Murdoch, A.J. and Forcella, F. (2003) Emergence of Chenopodium album and Stellaria media of different origins under different climatic conditions. Weed Research, 43 (3), pp. 163-176.

Grundy, A.C.; Peters, N.C.B.; Rasmussen, I.A.; Hartmann, K.A.; Sattin, M.; Andersson, L.; Mead, A.; Murdoch, A.J. and Forcella, F. (2002) Emergence of Chenopodium album and Stellaria media under different climatic conditions. In: Bastiaans, L.; Baumann, D.T.; Christensen, S.; Hatcher, P.E.; Kudsk, P.; Grundy, A.C.; Marshall, E.J.P.; Streibig, J.C. and Tei, F. (Eds.) Proceedings: 12th EWRS Symposium, EWRS Bookstore, Postbus 28, NL-6865 ZG Doorwerth, The Netherlands, pp. 264-265.

H

Holst, N.; Rasmussen, I.A. and Bastiaans, L. (2007) Field weed population dynamics: a review of model approaches and applications. Weed Research, 47 (1), pp. 1-14.

Holst, N.; Rasmussen, I.A. and Bastiaans, L. (2005) Field weed population models: a review of approaches and application domains. In: Bàrberi, P.; Bastiaans, L.; Christensen, S.; Fernandez-Quintanilla, C.; Froud-Williams, B.; Grundy, A.; Hatcher, P.; Kudsk, P.; Marshall, J.; Melander, B.; Quadranti, M.; Tei, F.; Thompson, A. and Vurro, M. (Eds.) Proceedings of the 13th EWRS Symposium, Bari, Italy, 19-23 June 2005, European Weed Research Society (EWRS), pp. 1-2.

K

Knudsen, Marie Trydeman; Meyer-Aurich, Andreas; Olesen, Jørgen E.; Chirinda, N. and Hermansen, J.E. (2014) Carbon footprints of crops from organic and conventional arable crop rotations – using a life cycle assessment approach. Journal of Cleaner Production, 64 (2014), pp. 609-618.

Knudsen, Marie Trydeman; Olesen, Jørgen E.; Hermansen, John E. and Meyer-Aurich, Andreas (2011) Livscyklusvurdering af økologiske og konventionelle planteavlssædskifter - fokus på drivhusgasemissioner. [Life cycle assessment of organic and conventional arable crop rotations - focusing on greenhouse gas emissions.] Speech at: Faglige følgegruppemøder med Fødevareministeriet, Aarhus University, 5.-6. September 2011. [Completed]

M

Melander, Bo (2022) Weed dynamics in the Danish long-term experiments on organic arable crop rotation systems. Speech at: Studies of agroecology in long-term organic and conventional cropping systems, Aarhus University, Research Center Foulum,Tjele, Denmark, 7-8 June 2022. [Completed]

Melander, Bo; Rasmussen, Ilse A and Bertelsen, Inger (2005) Integration of Elymus repens control and post-harvest catch crop growing in organic cropping systems. Paper at: 13th European Weed Research Society Symposium, Bari, Italy, 19 - 23 June 2005. [Unpublished]

Melander, Bo; Rasmussen, Ilse A and Bertelsen, Inger (2004) Common Couch-grass control with less tillage. DARCOFenews (4).

Melander, Bo; Rasmussen, Ilse A and Bertelsen, Inger (2004) Nye strategier til at bekæmpe kvik. DARCOFenews (6).

Melander, Bo; Rasmussen, Ilse A. and Barberi, Paolo (2005) Integrating Physical and Cultural Methods of Weed Control – Examples from European Research. Weed Science, 53, pp. 369-381.

Melander, Bo; Rasmussen, Ilse Ankjær; Holst, Niels and Bertelsen, Inger (2004) Ikke-kemisk ukrudtsbekæmpelse - mekanisk og termisk. In: Ukrudtsbogen. Danmarks JordbrugsForskning, chapter 4, pp. 207-226.

Melander, Senior scientist Bo and Rasmussen, Scientist Ilse A. (2001) Radrensning tager besværligt ukrudt. Økologisk Jordbrug, August 2001, p. 9.

O

Olesen, Jørgen E. (2022) A cropping systems perspective on the Danish organic arable LTE. Speech at: Studies of agroecology in long-term organic and conventional cropping systems, Aarhus University, Research Center Foulum,Tjele, Denmark, 7-8 June 2022. [Completed]

Olesen, Jørgen E. (2009) Dyrkningssystemernes effekt på produktion og miljø. Paper at: 1st Nordic Organic Conference, Göteborg, Sweden, 18-20 May 2009.

Olesen, Jørgen E. (2009) Climate-friendly food. Momentum 2008 (4), 2009, pp. 4-8.

Olesen, Jørgen E. (2009) Organic farming and the challenges of climate change. Ecology and Farming 44, 2009, pp. 2-5.

Olesen, Jørgen E. (2009) Sådan kan økologisk planteavl sænke udledningen af drivhusgasser. Landbrugsavisen Agro, 2009, p. 20.

Olesen, Jørgen E. (2006) Pres på bæredygtigheden. Økologisk Jordbrug, 2006, 16 (359), p. 6.

Olesen, Jørgen E. (2004) Sommer, udlæg og grøngødning. [Summer, undersown crops and green manure crops.] Økologisk Jordbrug, 24 (315), p. 6.

Olesen, Jørgen E. (2003) Fabelagtig vækstsæson. Økologisk Jordbrug, 2003 (295), p. 8.

Olesen, Jørgen E. (2003) Forberedelser til en ny vækstsæson. Økologisk Jordbrug, 2003 (273), p. 6.

Olesen, Jørgen E. (2002) Sommer i sædskifteforsøget. Økologisk Jordbrug, June 2002 (268).

Olesen, Jørgen E. (2001) Gunstige effekter af efterafgrøder i sædskifteforsøget. Økologisk Jordbrug, August 2001 (245), p. 8.

Olesen, Jørgen E. (2000) Status i sædskifteforsøget. Økologisk Jordbrug, October 2000, p. 8.

Olesen, Jørgen E. (2000) Sommeren står for døren i sædskifteforsøget. Økologisk Jordbrug, June 2000, 243, p. 8.

Olesen, Jørgen E. (2000) Europæisk forskning i sædskifter til økologisk jordbrug. Forskningsnytt om økologisk landbruk i Norden, March 2000 (2), pp. 16-17.

Olesen, Jørgen E. (2000) International forskning i økologiske sædskifter. Økologisk Jordbrug, 2000, 209, p. 8.

Olesen, Jørgen E. (1999) Synlige forskelle i sædskifteforsøget. Økologisk jordbrug, August 1999, p. 8.

Olesen, Jørgen E. and Askegaard, Margrethe (2003) Nitrate leaching from arable crop rotations in organic farming. Paper at: 12th N workshop, Exeter, Devon, UK, 21-24 September, 2003. [Unpublished]

Olesen, Jørgen E.; Askegaard, Margrethe and Berntsen, Jørgen (2004) Nitrate leaching from arable crop rotations in organic farming. In: Hatch, D.J.; Chadwick, D.R.; Jarvis, S.C. and Roker, J.A. (Eds.) Controlling nitrogen flows and losses, Wageningen Academic Publishers, pp. 389-396.

Olesen, Jørgen E.; Askegaard, Margrethe and Rasmussen, Ilse A. (2008) Sædskiftets og gødskningens betydning for udbytte i vårbyg. In: Strand, Einar (Ed.) Plantemøtet 2008, Bioforsk Fokus, no. 3 (1), pp. 80-81.

Olesen, Jørgen E.; Askegaard, Margrethe and Rasmussen, Ilse A. (2006) Kløvergræs som omdrejningspunkt. [Grass-clover as the key issue.] In: Sammendrag af indlæg Plantekongres 2006, Danmarks JordbrugsForskning and Dansk Landbrugsrådgivning, pp. 218-219.

Olesen, Jørgen E.; Askegaard, Margrethe and Rasmussen, Ilse A. (2005) Learning from a long-term crop rotation experiment. In: NJF Report, Nordic Association of Agricultural Scientists (NJF), 1 (1), pp. 91-94.

Olesen, Jørgen E.; Askegaard, Margrethe and Rasmussen, Ilse A. (2003) Crop production and N leaching in arable organic farming. Paper at: NJF's 22nd Congress "Nordic Agriculture in Global Perspective", Turku, Finland.

Olesen, Jørgen E.; Askegaard, Margrethe and Rasmussen, Ilse A. (2002) Økologisk planteavl uden husdyr. [Organic crop production without animals.] Paper at: Næringsstofforsyning i økologiske dyrkningssystem med lite husdyrgjødsel, Honne, Norge.

Olesen, Jørgen E.; Askegaard, Margrethe and Rasmussen, Ilse Ankær (2002) Sædskiftets indre dynamik i økologisk planteavl. In: Corell, A.; Kjær, L.B. and Frederiksen, H.B. (Eds.) Djf rapport Markbrug, 78, pp. 71-74.

Olesen, Jørgen E.; Askegaard, Margrethe and Rasmussen, Ilse Ankær (2000) Crop production during the first course of an organic crop rotation trial in Denmark. In: Cook, S.K.; Cormack, W.F.; Green, M.; Holland, J.M.; Leake, A.R. and Welsh, J.P. (Eds.) Aspects of Applied Biology, The association of applied biologists, 62, pp. 187-195.

Olesen, Jørgen E.; Askegaard, Margrethe and Rasmussen, Ilse Ankær (2000) Design of an organic farming crop rotation experiment. Acta Agriculturae Scandinavica, section B, Soil and Plant Science, 50, pp. 13-21.

Olesen, Jørgen E.; Askegaard, Margrethe and Rasmussen, Ilse Ankær (2000) Udnyttelse af husdyrgødning i sædskifter til økologisk planteavl. In: Sommer, Sven G. and Eriksen, Jørgen (Eds.) FØJO rapport, FØJO, 7, pp. 75-82.

Olesen, Jørgen E. and Dalgaard, Tommy (2006) Kan økologisk jordbrug være med til at løse verdens klimaproblemer? Global Økologi, 2006, 13 (3), pp. 14-15.

Olesen, Jørgen E. and Rasmussen, Ilse A. (2007) Vårbyg giver gode udbytter i økologiske forsøg. Landbrugsavisen Agro, December 2007, p. 32.

Olesen, Jørgen E.; Rasmussen, Ilse A. and Askegaard, Margrethe (2003) Sådan er det gået med forsøgssædskifterne. Økologisk Jordbrug, 2003, 23 (288), p. 12. [Unpublished]

Olesen, Jørgen E.; Rasmussen, Ilse Ankær and Askegaard, Margrethe (2002) Udbytter i forsøgssædskifter til kornproduktion. Økologisk Jordbrug, April 2002 (263), p. 9.

Olesen, Jørgen E.; Rasmussen, Ilse Ankær and Askegaard, Margrethe (2001) Fangafgrøder i sædskiftet øger udbyttet i vårsæd. Økologisk Jordbrug, April 2001 (238).

Olesen, Jørgen E.; Rasmussen, Ilse Ankær and Askegaard, Margrethe (2001) Planteavl uden kløvergræs mulig. Økologisk Jordbrug, April 2001 (238), p. 8.

Olesen, Jørgen E.; Rasmussen, Ilse Ankær and Askegaard, Margrethe (2001) Udbytter i sædskifter til økologisk kornproduktion. Forskningsnytt om økologisk landbruk i Norden, 2001 (2), pp. 12-13.

Olesen, Jørgen E.; Rasmussen, Ilse Ankær and Askegaard, Margrethe (2000) Danske forskere tester sædskifter. Økologisk Jordbrug, April 2000 (215), p. 14.

Olesen, Jørgen E.; Rasmussen, Ilse Ankær and Askegaard, Margrethe (2000) Crop rotations for grain production. In: Alföldi, T.; Lockeretz, W. and Niggli, U. (Eds.) Proceedings 13th International IFOAM Scientific Conference, p. 145.

Olesen, Jørgen E.; Rasmussen, Ilse Ankær and Askegaard, Margrethe (2000) Økologisk vinterhvede kan lykkes på god jord. Landsbladet Mark, 2000 (8), p. 26.

Olesen, Jørgen E.; Rasmussen, Ilse Ankær; Askegaard, Margrethe and Kristensen, K. (2002) Whole-rotation dry matter and nitrogen grain yields from the first course of an organic farming crop rotation experiment. Journal of Agricultural Science, Cambridge, 139, pp. 361-370.

Olesen, Jørgen E. and Thorup-Kristensen, Kristian (2003) Vælg det rigtige tidspunkt til nedpløjning af efterafgrøden. Agrologisk Tidsskrift Marken, 2003, 21 (3), pp. 26-27.

Olesen, Jørgen Eivind; Askegaard, Margrethe and Rasmussen, Ilse A. (2009) Winter cereal yields as affected by animal manure and green manure in organic arable farming. European Journal of Agronomy, 30, pp. 119-128.

Olesen, J.E.; Askegaard, M.; Rasmussen, I.A. and Kristensen, K. (2011) Crop rotation and crop management effects on cereal yields in arable organic farming in Denmark. In: Neuhoff, Daniel; Halberg, Niels; Rasmussen, Ilse A.; Hermansen, John; Ssekyewa, Charles and Sohn, Sang Mok (Eds.) Organic is Life - Knowledge for Tomorrow. Organic Crop Production. Proceedings of the Third Scientific Conference of the International Society of Organic Agriculture Research, 1, pp. 280-283.

Olesen, J.E.; Sørensen, P.; Thomsen, I.K.; Eriksen, J.; Thomsen, A.G. and Berntsen, J. (2004) Integrated nitrogen input systems in Denmark. In: Mosier, A.R.; Syers, J.K. and Freney, J.R. (Eds.) Agriculture and the nitrogen cycle: assessing the impacts of fertilizer use on food production and the environment. SCOPE, no. 65. Island Press, , chapter 9, pp. 129-140.

Olesen, Jørgen E. and Askegaard, Margrethe (2011) Økologiske planteavlssædskifter – jordfrugtbarhed og miljø. In: Plantekongres 2011: Sammendrag af indlæg, Aarhus Universitet, Videncentret for Landbrug, pp. 112-114.

Olesen, Jørgen E.; Hansen, Elly M.; Askegaard, Margrethe and Rasmussen, Ilse A. (2007) The value of catch crops and organic manures for spring barley in organic arable farming. Field Crops Research, 100, pp. 168-178.

Olesen, Jørgen E.; Rasmussen, Ilse A. and Askegaard, Margrethe (2008) Nitrogen use efficiency of cereals in arable organic farming. In: Neuhoff, Daniel; Halberg, Niels; Alföldi, Thomas; Lockeretz, William; Thommen, Andreas; Rasmussen, Ilse A; Hermansen, John; Vaarst, Mette; Lueck, Lorna; Caporali, Fabio; Jensen, Henning Hogh; Migliorini, Paola and Willer, Helga (Eds.) Cultivating the future based on science. Volume 1. Organic Crop production, 1, pp. 316-319.

Olesen, Jørgen Eivind (2010) Fødevarernes andel af klimabelastningen. In: Vores mad og det globale klima – Etik til en varmere klode. Det Etiske Råd, Copenhagen, pp. 21-32.

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Pandey, Arjun; Li, Fucui; Askegaard, Margrethe; Rasmussen, Ilse A. and Olesen, Jørgen E. (2018) Nitrogen balances in organic and conventional arable crop rotations and their relations to nitrogen yield and nitrate leaching losses. Agriculture, Ecosystems & Environment, 265, pp. 350-362.

Pandey, Arjun; Li, Fucui; Margrethe, Askegaard; Rasmussen, Ilse A. and Olesen, Jørgen E. (2018) Nitrogen balances in organic and conventional arable crop rotations and their relations to nitrogen yield and nitrate leaching losses. Agriculture, ecosystems & environment, 265, pp. 350-362.

Petersen, Søren O. (2009) Kvælstofdynamik i økologiske sædskifter. Økologisk Jordbrug, February 2009, p. 12.

Petersen, Søren O.; Schjønning, P.; Olesen, Jørgen E.; Christensen, S. and Christensen, B.T. (2013) Sources of nitrogen for winter wheat in organic cropping systems. Soil Science Society of America Journal, 77 (2), pp. 696-697.

Petersen, Søren O. (2009) Flow of nutrients and climate relevant gases in experimental rotations on three soil types. Workshop at: Regulation of soil organic matter and nutrient turnover in agriculture, Witzenhausen, Germany, November 12th to 13th, 2009.

Petersen, Søren O.; Ambus, Per; Elsgaard, Lars; Schjønning, P. and Olesen, Jørgen E. (2013) Long-term effects of cropping system on N2O emission potential. Soil Biology and Biochemistry, 57, pp. 706-712.

R

Rasmussen, I. and Askegaard, M. (2004) Crop rotation limits Canada thistle, but not Couch grass or annual weeds. DARCOFenews (4).

Rasmussen, I. and Askegaard, M. (2004) Ukrudtets udvikling i de økologiske sædskifteforsøg. [The development of weeds in the Danish organic crop rotation experiments.] FØJOenyt (6).

Rasmussen, I.A.; Askegaard, M. and Olesen, J.E. (2007) Perennial weed control and nitrogen leaching in long-term organic crop rotation experiments for cereal production. In: Melander, B.; Cloutier, D. and Gerowitt, B. (Eds.) Proceedings 7th EWRS sorkshop on Physical and Cultural Weed Control, p. 133.

Rasmussen, I.A.; Askegaard, M. and Olesen, J.E. (2007) Perennial weeds in organic arable farming – challenges & dilemmas. In: Lund, M.; Larsen, T.U.; Thøgersen, J.O.; Christensen, S.; Børsting, C.; Plauborg, F.; Munkholm, L.J.; Olesen, J.E.; Callesen, O.; Askegaard, M.; Hansen, J.G. and Hvelplund, T. (Eds.) NJF Report, 3 (2), pp. 316-317.

Rasmussen, I.A.; Askegaard, M. and Olesen, J.E. (2005) Development of weeds in organic crop rotation experiments. In: Bàrberi, P.; Bastiaans, L.; Christensen, S.; Fernandez-Quintanilla, C.; Froud-Williams, B.; Grundy, A.; Hatcher, P.; Kudsk, P.; Marshall, J.; Melander, B.; Quadranti, M.; Tei, F.; Thompson, A. and Vurro, M. (Eds.) Proceedings of the 13th EWRS Symposium, Bari, Italy, 19-23 June 2005, European Weed Research Society (EWRS), pp. 1-2.

Rasmussen, I.A.; Askegaard, M. and Olesen, J.E. (2005) Long-term organic crop rotation experiments for cereal production - perennial weed control and nitrogen leaching. In: Köpke, U.; Niggli, U.; Neuhoff, D.; Cornish, P.; Lockeretz, W. and Willer, H. (Eds.) Researching Sustainable Systems: Proceedings of the First Scientific Conference of the International Society of Organic Agriculture Research (ISOFAR), International Society of Organic Agriculture Research (ISOFAR), pp. 227-230.

Rasmussen, I.A.; Askegaard, M. and Olesen, J.E. (2005) Management of perennial weeds and nitrogen leaching in arable cropping systems. In: NJF Report, Nordic Association of Agricultural Scientists (NJF), 1 (1), pp. 153-156.

Rasmussen, I.A.; Askegaard, M. and Olesen, J.E. (2004) Økologiske sædskifter til korn - kan produktionen øges? [Organic crop rotations for cereal production - is it possible to increase the yield?] Forskningsnytt om økologisk landbruk i Norden (4), pp. 16-18.

Rasmussen, I.A.; Askegaard, M.; Olesen, J.E. and Kristensen, K. (2006) Effects on weeds of management in newly converted organic crop rotations in Denmark. Agriculture, Ecosystems & Environment, 113, pp. 184-195.

Rasmussen, I.A.; Bastiaans, L.; Holst, N.; Grundy, A. and Melander, B. (2007) 'All models are wrong - but some are useful' - a report from an EWRS workshop on modelling weed population dynamics. In: Bàrberi, P.; Bastiaans, L; Bohren, C.; Christensen, S.; Gerowitt, B.; Grundy, A.; Hatcher, P.; Kudsk, P.; Melander, B.; Rubin, B.; Streibig, J.; Tei, F.; Thompson, A. and Vurro, M. (Eds.) 14th EWRS Symposium 17-21 June 2007 Hamar Norway, p. 116.

Rasmussen, I.A.; Bastiaans, L.; Holst, N.; Grundy, A. and Melander, B. (2007) Report from an EWRS workshop on modelling weed population dynamics. In: Melander, B.; Cloutier, D. and Gerowitt, B. (Eds.) Proceedings 7th EWRS workshop on Physical and Cultural Weed Control, p. 174.

Rasmussen, Ilse A. (2006) Rodukrudt i sædskifteforsøg. [Perennial weeds in organic crop rotation experiments.] Økologisk Jordbrug, June 2006 (364), p. 6.

Rasmussen, Ilse A. (2006) Følfod og agertidsel. Speech at: Temadag om Sædskifte og Rodukrudt, Den økologiske Landbrugsskole, Kalø, 23. november 2005.

Rasmussen, Ilse A. (2006) Perennial weeds in a crop rotation perspective. Speech at: Ecological Agriculture course at KVL, Research Centre Flakkebjerg, 2 March 2006.

Rasmussen, Ilse A. (2006) Ukrudtsbekæmpelse i økologisk jordbrug. Speech at: Beder Gartnerskole, Forskningscenter Flakkebjerg, 28 Februar 2006.

Rasmussen, Ilse A. (2005) Økologi med alle midler. Økologisk Jordbrug, November 2005 (348), p. 12.

Rasmussen, Ilse A. (2004) Svært at holde kvikken i skak. Økologisk Jordbrug, April 2004, 24 (311), p. 6.

Rasmussen, Ilse A. (2004) Weed management in organic cropping systems. In: Goodman, Robert M. (Ed.) Encyclopedia of Plant and Crop Science. Marcel Dekker Inc., pp. 1-4.

Rasmussen, Ilse A. (2003) Ukrudtsfloraens udvikling i de økologiske sædskifteforsøg. FØJO enyt - Nyhedsbrev fra Forskningscenter for Økologisk Jordbrug (3).

Rasmussen, Ilse A. (2003) Nyt fra de økologiske sædskifteforsøg - hvad sker der med jordens pulje af ukrudtsfrø på de økologiske forsøgsmarker. Økologisk Jordbrug, May 2003, 23 (289), p. 6.

Rasmussen, Ilse A. (2002) Nyt fra de økologiske sædskifteforsøg - effekten af økologisk sædskifte begynder at vise sig. Økologisk Jordbrug, September 2002, 22 (271), p. 6.

Rasmussen, Ilse A. (2002) Nyt fra de økologiske sædskifteforsøg - Kløvergræsset i Jyndevad har været et smertensbarn. Økologisk Jordbrug, May 2002, 22 (264), p. 6.

Rasmussen, Ilse A. (2001) Nyt fra de økologiske sædskifteforsøg - alle forsøgsparceller er høstet. Økologisk Jordbrug, October 2001, 21 (249), p. 6.

Rasmussen, Ilse A. (2001) Nyt fra de økologiske sædskifteforsøg - aktiviteter i marken lige nu. Økologisk Jordbrug, April 2001, 21 (239), p. 6.

Rasmussen, Ilse A. (2000) Nyt fra de økologiske sædskifteforsøg. Økologisk Jordbrug, August 2000, 20 (221), p. 8.

Rasmussen, Ilse A. (2000) Nyt fra de økologiske sædskifteforsøg - Vintersæden har overvintret rimeligt. Økologisk Jordbrug, April 2000, 20 (215), p. 8.

Rasmussen, Ilse A.; Askegaard, Margrethe and Olesen, Jørgen E. (2006) Sædskifteforsøg skal give nye svar. [Crop rotation experiments expected to give new answers.] Økologisk Jordbrug, April 2006 (359), p. 9.

Rasmussen, Ilse A.; Askegaard, Margrethe and Olesen, Jørgen E. (2006) Sædskifteforsøg skifter retning. [Change of direction in crop rotation experiments.] Økologisk Jordbrug, April 2006 (359), pp. 8-9.

Rasmussen, Ilse A.; Askegaard, Margrethe and Olesen, Jørgen E. (2006) The Danish organic crop rotation experiment for cereal production 1997-2004. In: Raupp, J.; Pekrun, C.; Oltmanns, M. and Köpke, U. (Eds.) Long-term Field Experiments in Organic Farming. ISOFAR (International Society of Organic Agriculture Research) Scientific Series. Verlag Dr. Köster, pp. 117-134.

Rasmussen, Ilse A.; Askegaard, Margrethe and Olesen, Jørgen E. (2006) Organic crop rotation experiments - short-term versus longer-term results. Paper at: Joint Organic Congress, Odense, Denmark, May 30-31, 2006.

Rasmussen, Ilse A.; Askegaard, Margrethe and Olesen, Jørgen E. (2003) Konsekvenser af at nedsætte input af næringsstoffer på bedriften. Speech at: Konventionel husdyrgødning i det økologiske sædskifte, Den økologiske Landbrugsskole, Kalø, 25. sept. 2003.

Rasmussen, Ilse A.; Askegaard, Margrethe and Olesen, Jørgen E. (2002) Problemer med rodukrudt. Økologisk Jordbrug, April 2002, 22 (263), p. 8.

Rasmussen, Ilse A.; Askegaard, Margrethe and Olesen, Jørgen E. (2001) Nye og bedre sædskifter. Økologisk Jordbrug, April 2001, 21 (238), p. 9.

Rasmussen, Ilse A.; Askegaard, Margrethe and Olesen, Jørgen E. (2000) Weed control in organic crop rotation experiments for grain production. In: Alföldi, T.; Lockeretz, W. and Niggli, U. (Eds.) Proceedings 13th International IFOAM Scientific Conference, vdf Hochschulverlag AG an der ETH Zürich, p. 182.

Rasmussen, Ilse A.; Halberg, Niels; Hermansen, John and Østergård, Hanne (2005) Givtig blanding af forskere og græsrødder ved økologi-kongres i Australien. FØJOenyt (5).

Rasmussen, Ilse A. and Holst, Niels (2004) Computer model for simulating the long-term dynamics of annual weeds. In: Cloutier, Daniel C. and Ascard, Johan (Eds.) Proceedings of the 6th EWRS Workshop on Physical and Cultural Weed Control, CD-ROM, Europeon Weed Reserach Society, p. 69.

Rasmussen, Ilse A. and Holst, Niels (2003) Computer model for simulating the long-term dynamics of annual weeds: from seedlings to seeds. Aspects of Applied Biology (69), pp. 277-284.

Rasmussen, Ilse A.; Holst, Niels and Madsen, Kathrine Hauge (2003) Modeling the effect of management strategies on the seed bank dynamics of volunteer oilseed rape. In: Boelt, Birte (Ed.) Proceedings of the 1st European Conference on the Co-existence of Genetically Modified Crops with Conventional and Organic Crops, Danish Institute of Agricultural Sciences, pp. 184-186.

Rasmussen, Ilse A. and Melander, Bo (2005) Balance i ukrudtsbestanden. Mark, November 2005 (11), p. 31.

Rasmussen, Ilse A. and Melander, Bo (2001) Ukrudtsbekæmpelse i økologisk dyrket vintersæd: resultater og erfaringer. Forskningsnytt om økologisk landbruk i Norden, November 2001 (6), pp. 9-11.

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

Rasmussen, Ilse A.; Melander, Bo; Rasmussen, Karsten; Jensen, Rikke K.; Hansen, Preben K.; Rasmussen, Gitte; Christensen, Svend and Rasmussen, Jesper (2000) Recent advances in weed management in cereals in Denmark. Paper at: 13th IFOAM Scientific Conference, Basel, Switzerland, 28 to 31 August 2000.

Rasmussen, Ilse A.; Thomsen, Henning; Askegaard, Margrethe and Olesen, Jørgen E. (2003) Kvik volder kvaler. Økologisk Jordbrug, May 2003, 23 (288), p. 8.

Rasmussen, Ilse A.; Thomsen, Henning C.; Askegaard, Margrethe and Olesen, Jørgen E. (2006) Den langsigtede effekt af kløvergræsgrøngødning og efterafgrøder på udviklingen af kvik og tidsler. In: Jespersen, Jørgen B. and Pedersen, Carl Åge (Eds.) Sammendrag af indlæg Plantekongres 2006, Danmarks JordbrugsForskning og Dansk Landbrugsrådgivning, pp. 358-359.

Rasmussen, Ilse A.; Thomsen, Henning C. and Melander, Bo (2004) Erfaringer med kvikbekæmpelse på Jyndevad Forsøgsstation. In: Sørensen, Henning Laen (Ed.) Månedsmagasinet Mark, Dansk Landbrugs Medier (1).

Rasmussen, I.A. (2008) Kvik og tidsler i sædskifteforsøgene. [Elytrigia repens (Couch grass) and Cirsium arvense (Canada thistle) in the organic crop rotation experiments.] Økologisk Jordbrug, April 2008 (407), p. 12.

Rasmussen, Ilse A.; Melander, Bo; Askegaard, Margrethe; Kristensen, Kristian and Olesen, Jørgen E. (2014) Elytrigia repens population dynamics under different management schemes in organic cropping systems on coarse sand. European Journal of Agronomy, 58, 18-27.

Rasmussen, Ilse A.; Sønderskov, Mette; Damgaard, Christian and Kristensen, Kristian (2009) Effect of Elymus repens on yield of winter wheat, spring barley and faba bean in an organic crop rotation experiment. In: Cloutier, D.C. (Ed.) Proceedings 8th EWRS Workshop on Physical and Cultural Weed Control, Zaragoza, Spain, p. 129.

Rasmussen, Ilse Ankjær (2009) Agertidsel. [Canadian thistle - Cirsium arvense.] Økologisk Landsforening. Online at http://www.okologi.dk/landmand/fagomraader/oekologisk-planteavl/rodukrudt/beskrivelse-af-rodukrudt/agertidsel.aspx, accessed on: 4 May 2011.

Rasmussen, Ilse Ankjær (2009) Følfod. [Coltsfoot - Tussilago farfara.] Økologisk Landsforening. Online at http://www.okologi.dk/landmand/fagomraader/oekologisk-planteavl/rodukrudt/beskrivelse-af-rodukrudt/foelfod.aspx, accessed on: 4 May 2011.

Rasmussen, Ilse Ankjær (2009) Om rodukrudt. [On perennial weeds.] Økologisk Landsforening. Online at http://www.okologi.dk/landmand/fagomraader/oekologisk-planteavl/rodukrudt/om-rodukrudt.aspx, accessed on: 4 May 2011.

Rasmussen, Ilse Ankjær (2009) Rodukrudtsbekæmpelse. [Management and control of perennial weeds.] Økologisk Landsforening. Online at http://www.okologi.dk/landmand/fagomraader/oekologisk-planteavl/rodukrudt/bekaempelse-af-rodukrudt.aspx, accessed on: 4 May 2011.

S

Sapkota, Tek Bahadur; Askegaard, Margrethe; Lægdsmand, Mette and Olesen, Jørgen Eivind (2011) Effects of catch crop type and root depth on nitrogen leaching and yield of spring barley. Field Crops Research, 125, pp. 129-138.

Schjønning, P. (2008) Undgå skadelig pakning af jorden. Økologisk Jordbrug, September 2008 (415), p. 12.

Schjønning, P. (2007) The role of soil science in optimization of soil resource management. Speech at: NJF's 23rd Congress: Trends and Perspectives in Agriculture, Copenhagen, June 26-29 2007.

Schjønning, P.; Munkholm, L.J.; Elmholt, S. and Olesen, J.E. (2007) Organic matter and soil tilth in arable farming: Management makes a difference within 5-6 years. Agriculture, Ecosytems and Environment, 122, pp. 157-172.

Schjønning, P.; de Jonge, L.W.; Moldrup, P.; Christensen, B.T. and Olesen, J.E. (2010) Searching the critical soil organic carbon threshold for satisfactory tilth conditions – test of the Dexter clay:carbon hypothesis. [På jagt efter et nedre, kritisk indhold af organisk stof i jord - test af Dexter's ler:kulstof hypotese.] In: de Jonge, L.W.; Moldrup, P. and Vendelboe, A.L. (Eds.) Proceedings of the 1st international conference and exploratory workshop on soil architecture and physico-chemical functions "Cesar", Aarhus University, Faculty of Agricultural Sciences, Research Centre Foulum, Tjele, Denmark, pp. 341-346.

Schjønning, P.; de Jonge, L.W.; Munkholm, L.J.; Moldrup, P.; Christensen, B.T. and Olesen, J.E. (2011) Clay dispersibility and soil friability – testing the soil clay-to-carbon saturation concept. Vadose Zone Journal, 11 (1), pp. 174-187.

Schjønning, P.; de Jonge, L.W.; Olesen, J.E. and Greve, M.H. (2009) Effekten af økologiske driftsmetoder på ler-dispergering i kulstof-udpinte jorde. ICROFS Nyt, December 2009 (4), pp. 5-7.

Schjønning, P.; de Jonge, L.W.; Olesen, J.E. and Greve, M.H. (2009) Organic farming effects on clay dispersion in carbon-exhausted soils. ICROFS News, November 2009 (4), pp. 8-10.

Schjønning, P.; Heckrath, G. and Christensen, B.T. (2009) Threats to soil quality in Denmark - A review of existing knowledge in the context of the EU Soil Thematic Strategy. [Trusler mod jordkvalitet i Danmark - En gennemgang af eksisterende viden set i lyset af EU's tematiske jordstrategi.] DJF Report Plant Science, no. 143. Aarhus University, Faculty of Agricultural Sciences, Research Centre Foulum, Tjele, Denmark.

Sørensen, Peter (2022) Nutrient cycling in the Danish long-term experiment with arable cropping -examples. Speech at: Studies of agroecology in long-term organic and conventional cropping systems, Aarhus University, Research Center Foulum,Tjele, Denmark, 7-8 June 2022. [Completed]

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