Grassland productivity as affected by intensity of nitrogen fertilization in preceding years.
DOI:
https://doi.org/10.18174/njas.v30i4.16965Abstract
2 sown grasslands on a sandy and clay soil and an old permanent grassland on a clay soil comprising mostly perennial ryegrass were given up to 1120 kg N/ha annually and cut at various stages of development. Productivity decreased with increasing N application in the pretreatment yr, and was accompanied by a decrease in pasture quality. Annual applications of 400-480 kg N/ha gave a good balance between DM yield and sward quality. These results indicated that 1-yr field trials do not allow general conclusions as to long-term effects. (Abstract retrieved from CAB Abstracts by CABI’s permission)Downloads
Published
1982-11-01
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Papers