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| Topp, Cairistiona F E; Doyle, Chris J; Watson, Christine A. |
| This report was presented at the UK Organic Research 2002 Conference of the Colloquium of Organic Researchers (COR). Organic farming systems rely on the management of biological cycles for the provision of nutrients, which are crucial to maximising the production from the system. Rotations based on the use of grass-legume leys are central to the concept of organic farming systems, because they have the potential to support both animal production, and a subsequent, exploitative, arable cropping phase. A major challenge in organic farming is managing the supply of nitrogen, since it has a key role in governing both productivity and environmental impact. Hence, within a rotational system, there is a need to understand the complex interactions that are... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions; Farming Systems; Crop husbandry. |
| Ano: 2002 |
URL: http://orgprints.org/8295/1/topp_Framework_assessing_crop_production.pdf |
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| Doyle, Chris J; Topp, Cairistiona F E. |
| This report was presented at the UK Organic Research 2002 Conference of the Colloquium of Organic Researchers (COR). Forage legumes, with their ability to fix nitrogen biologically, seem especially attractive for organic livestock production. In an attempt to assess their true potential, this study draws on a four-year trial conducted at 12 sites in northern Europe with four different forage legumes. One third of the sites were managed as organic systems, with the harvested forage being fed as silage to dairy cows. Based on the trial results, an economic assessment has been made of the potential of forage legumes to improve the competitive edge of organic dairy systems, relative to conventional grass-based ones. Although the results suggest that the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Pasture and forage crops; Farm nutrient management; Animal husbandry; Farm economics. |
| Ano: 2002 |
URL: http://orgprints.org/8298/1/doyle_topp_Forage_livestock_systems.pdf |
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