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| Känkänen, Hannu; Eriksson, Christian; Räkköläinen, Mauri; Vuorinen, Martti. |
| Cover crops can reduce leaching and erosion, introduce variability into crop rotations and fix nitrogen (N) for use by the main crops. In Finland, undersowing is a suitable method for establishing cover crops in cereals. The effect of annual undersowing on soil nitrate N was studied at two sites. Red clover (Trifolium pratense L.), white clover (Trifolium repens L.), a mixture of red clover and meadow fescue (Festuca pratensis Huds.), and westerwold ryegrass (Lolium multiflorum Lam. var. westerwoldicum) were undersown in spring cereals during six successive seasons, and a pure stand of cereal was grown in two years after that. In all years, the soil nitrate N was measured in late autumn, and in addition in different times of the season in last four years.... |
| Tipo: Journal paper |
Palavras-chave: Crop combinations and interactions. |
| Ano: 2003 |
URL: http://orgprints.org/16745/1/k%C3%A4nk%C3%A4nen.pdf |
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