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Effect of extensification on yield and botanical composition of grassland on dry sandy soil

, : Effect of extensification on yield and botanical composition of grassland on dry sandy soil. Grassland management and nature conservation: Proceedings of a joint meeting between the British Grassland Society and the British Ecological Society held at Leeds University 27-29 September 1993: 217-222

An area of grassland was sown with Lolium perenne, Phleum pratense and Trifolium repens in 1966 and treated for 5 years with 300 kg N/ha annually and P and K as required. In 1971 the area was divided into 2 parts, (a) no fertilizer, and (b) 20 kg/ha P2O5 and 40 kg/ha K2O. These plots were further subdivided for grazing and hay production. Annual DM production declined within 5 to 10 years from 10 t/ha to <4 t under grazing and 1 t/ha under cutting in the (a) plots.

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