4805: Long-term organic crop rotation experiments for cereal production – yield development and dynamics
(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.
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Summary
A crop rotation experiment was established in 1996/97 at three locations representing different soil types and climates. Three factors were tested: i) crop rotation with different proportions of N2-fixing crops, ii) with and without a catch crop, and iii) with and without animal manure. A green manure crop increased yields in the following cereal crops, but at the rotational level, total yields were larger in crop rotations without a green manure crop. There were positive effects of animal manure and catch crops on yield. However, except for the coarse sandy soil, the yield effects of catch crops and animal manure decreased over time when a grass-clover green manure was included in the rotation. It appeared that the buffering effect of clover can counteract the positive yield effects of manure application and catch crop use. This shows the importance of assessing long-term effects in the evaluation of crop management measures.
| Document Language: | English |
|---|---|
| Keywords: | green manure, catch crop, animal manure, clover buffer |
| Subject Areas: | Crop husbandry > Crop combinations and interactions Knowledge management > Research methodology and philosophy > Specific methods |
| Research affiliation: | International Conferences > ISOFAR conferences > Researching Sustainable Systems 2005 |
| Total budget (Euro): | 0 |
| Orgprints ID Number: | 4805 |
| Contact: | ISOFAR, |
| Deposited On: | 10 October 2005 |
| EPrint Type: | Conference paper |
| Published?: | Unpublished |
| Peer Review Status: | Peer-reviewed and accepted |
| Additional Publishing Information: | The paper presented here is the final paper submitted by the authors to the conference Researching Sustainable Systems. The final edited papers are available with the following publication: Köpke, Ulrich; Niggli, Urs; Neuhoff, Daniel; Cornish, Peter; Lockeretz, Willie und Willer, Helga, (Hrsg.) (2005) Researching Sustainable Systems. Proceedings of the First Scientific Conference of the International Society of Organic Agriculture Research (ISOFAR), Held in Cooperation with the International Federation of Organic Agriculture Movements (IFOAM) and the National Association for Sustainable Agriculture, Australia (NASAA), 21 – 23 September 2005, Adelaide Convention Centre, Adelaide, South Australia.. Research Institute of Organic Agriculture FiBL, CH-Frick, and International Society of Organic Agriculture Research (ISOFAR), c/o Institute of Organic Agriculture (IOL), DE-University of Bonn. http://orgprints.org/4013/ Distribution: Paper copies may be ordered from FiBL at a cost of 28 Euros plus mailing costs (see FiBL shop at http://www.fibl.org/shop); FiBL order number 1394. A PDF version is available free of charge for ISOFAR members via the member area of www.isofar.org. |
| Related Links: | http://orgprints.org/4013/, http://www.isofar.org/adelaide2005, http://orgprints.org/view/projects/int-conf-isofar-2005.html |
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