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Winter grazing as an alternative to mulching or mowing grass clover swards

Westphal, M.Sc. Derk; Loges, Dr. Ralf and Taube, Prof. Dr. Friedhelm (2008) Winter grazing as an alternative to mulching or mowing grass clover swards. Poster at: Cultivating the Future Based on Science: 2nd Conference of the International Society of Organic Agriculture Research ISOFAR, Modena, Italy, June 18-20, 2008.

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Summary

Management factors like the type of defoliation and seed mixture influence yield and forage quality of grass clover mixtures. In comparison to harvesting, grazing is less cost intensive. For economical reasons a maximum duration of grazing period is required. Grazing over winter can cause pasture damages. This problem is of minor relevance for grass clover grown on arable land in the last production year, which is ploughed in the following spring. This study compares different grass clover mixtures concerning yield, forage quality and suitability for winter grazing.With this background, tall fescue exerted more significant effect on the dry matter yield than perennial ryegrass. White clover showed significant superiority over all the other tested species, with regard to protein and energy contents. Otherwise, swards with red clover and alfalfa had a significantly higher legume contents and produced higher dry matter and N yields than the other swards. Plots grazed in different periods over winter showed a clear significant loss of grazable matter. The highest loss of dry matter which also was accompanied by a decrease in crude protein and energy content was observed in mixtures with Lucerne. Under mulching systems and early grazing high nitrate losses were measured. After ploughing, the early grazing systems resulted in lower spring wheat yields than grazing in January or cutting systems.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:grassland, grass/clover, forage quality, wheat, nutrient management
Subjects: Crop husbandry > Crop combinations and interactions
Animal husbandry > Feeding and growth
Research affiliation: International Conferences > 2008: IFOAM OWC: Research Track / ISOFAR > 2.3 Arable crop production
Deposited By: Westphal, M.Sc. Derk
ID Code:12385
Deposited On:06 Oct 2008
Last Modified:12 Apr 2010 07:36
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:This paper is published in the conference proceedings:
Neuhoff, Daniel; Halberg, Niels; Alfldi, Thomas; Lockeretz, William; Thommen, Andreas; Rasmussen, Ilse A.; Hermansen, John; Vaarst, Mette; Lck, Lorna; Carporali, Fabio; Jensen, Henning Hgh; Migliorini, Paola and Willer, Helga, Eds. (2008) .Cultivating the Future Based on Science. Proceedings of the Second Scientific Conference of the International Society of Organic Agriculture Research (ISOFAR), held at the 16th IFOAM Organic World Congress in Cooperation with the International Federation of Organic Agriculture Movements (IFOAM) and the Consorzio ModenaBio, 18 . 20 June 2008 in Modena, Italy.. International Society of Organic Agriculture Research (ISOFAR), c/o IOL, DE-Bonn, Research Institute of Organic Agriculture FiBL, CH-Frick. http://orgprints.org/13672 and http://orgprints.org/13674

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