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| Løes, Anne-Kristin; Henriksen, Trond Maukon; Eltun, Ragnar; Sjursen, Helge. |
| By restricted access to manure, nitrogen (N) supply in organic agriculture relies on biological N-fixation. This study compares grain yields after one full-season green manure (FSGM) to yields with repeated use of a green-manure catch crop. At two sites in south-eastern Norway, in a simple 4-year rotation (oats/wheat/oats/wheat), the repeated use of ryegrass, clover, or a mixture of ryegrass and clover as catch crops was compared with an FSGM established as a catch crop in year 1. The FSGM treatments had no subsequent catch crops. In year 5, the final residual effects were measured in barley. The yield levels were about equal for grains with no catch crop and a ryegrass catch crop. On average, the green-manure catch crops increased subsequent cereal... |
| Tipo: Journal paper |
Palavras-chave: Crop combinations and interactions; Nutrient turnover; Farm nutrient management. |
| Ano: 2011 |
URL: http://orgprints.org/18531/1/Final_version_March_2011_Repeated_use_of_green_manure_catch_crops.pdf |
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