1. Simulation of solute leaching in soils of differing permeabilities
2. , 1991 Farming, Fertilisers and the Nitrate Problem. CAB International, Oxford, UK.
3. Anon 1980 Nutrient Allowances and Composition of Feedingstuffs for Ruminants (Booklet 2086). Ministry of Agriculture Fisheries and Food, London, UK.
4. Anon 1986 Nitrate in Water. A report by the Nitrate Coordination Group. Department of the Environment Central Directorate of Environmental Protection, Pollution Paper 26, HMSO, London, UK, pp 12–20.
5. Anon 1989 Announcement of Candidate Areas for the Pilot Nitrate Scheme (News Release). Ministry of Agriculture Fisheries and Food, London, UK.