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Phosphorus transfer from grassland soils (continuation of NT1005) - NT1016

Grassland livestock production systems cover 60% of the land area of England and Wales, and import phosphorus (P) as fertiliser and in concentrate feeds. These imports result in a typical annual surplus of over 20 kg total P (TP) per hectare of dairy farm soil per year, which is accumulating in surface layers. This represents a high potential for P transfer to water by solubilisation (leaching), physical detachment (particles and colloids) and incidental mechanisms (direct transfer of fertiliser and slurry). Because of the location of much of the grassland in England and Wales, this has much potential impact on water quality. The aims of NT1016 were to extend the database and understanding of P transfer from grassland, as indicated in the five sections in the results.
Time-Scale and Cost
From: 1996

To: 1999

Cost: £230,714
Contractor / Funded Organisations
Institute of Grassland and Environment Research (IGER)
Fields of Study
Fertilisers and Nitrate Pollution