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Organic crop rotation experiments - short-term versus longer-term results

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.

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Summary

Danish experiments with cereal-based organic crop rotations have shown that the short-term results (the first course, up to four years after conversion) are different from those obtained in the longer-term (the second course, fifth to eighth year after conversion). Yield gain from use of manure increased from the first to the second course on a sandy soil, but decreased on loamier soils. Yield gain from leguminous catch crops increased from the first to the second course in a crop rotation without grass-clover. Some of these effects were caused by buffering effects of the grass-clover, other effects were caused by changes in soil fertility over time.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Subjects: Crop husbandry > Crop combinations and interactions
Research affiliation: International Conferences > 2006: Joint Organic Congress > Theme 4: Crop systems and soils
Denmark > DARCOF II (2000-2005) > IV.1 (EXUNIT) Experimental units for research in organic farming systems
Deposited By: Rasmussen, Researcher Ilse A.
ID Code:7680
Deposited On:09 May 2006
Last Modified:12 Apr 2010 07:32
Document Language:English
Status:Published
Refereed:Not peer-reviewed

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