1. Addiscott TM, Whitmore AP and Powlson DS (1991) Farming, Fertilizers and the Nitrate problem. CAB International, Wallingford, UK
2. Archer JR (1991) Management of livestock wastes for nitrate control. In: Pollution — the New Standard. RASE/ADAS Conference, 6 Feb 1991 (Cited in Parkinson, 1993)
3. Aulakh MS, Doran JW and Mosier AR (1992) Soil denitrification — Significance, measurement, and effects of management. Adv Soil Sci 18: 1–57
4. Ball BC (1990) Straw incorporation and tillage methods: straw decomposition, denitrification and growth and yield of winter barley. J Agric Eng Res 46: 223–243
5. Bauder JW and Montgomery BR (1979) Overwinter redistribution and leaching of fall applied nitrogen. Soil Sci Soc Am J 43: 744–747