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| Hansen, J.P.; Eriksen, J.; Jensen, L.S.. |
| Forecasting crop nitrogen (N) demand is important for maximising productivity and minimising losses to the environment and includes taking into account residual effects. The residual N effect was estimated in a dairy crop rotation (spring barley undersown with grass-clover, 1st and 2nd year ley, spring barley/pea undersown with ryegrass, oats undersown with ryegrass and fodder beets) with different management (grazed/cut) and manure type (slurry/deep litter) by anaerobic incubation and plant N-uptake in a pot experiment and in the field. For comparison a 10-year-old grass-clover was included. Type of animal manure did not affect the residual N effect. Crop rotations with grazed grassland had a residual effect that on average was 13% higher than the same... |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover. |
| Ano: 2005 |
URL: http://orgprints.org/4572/1/4572.doc |
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