Part 1 Nitrogen cycling and nitrate production in catchment ecosystems: nitrogen cycling in catchment ecosystems - an overview, Dr. A.L.Heathwaite et al; nitrogen and nitrogen compounds in the atmosphere, Dr.R.P.Wayne, Physical Chemistry Oxford University; nitrogen cycling in agricultural soils, Dr.K.Smith, Dr. A.Vinten, Edinburgh School of Agriculture; nitrate dynamics in forest soils, Dr.H.Van Miegroet, Oak Ridge; Dr.Dale Johnson, University of Nevada; nitrogen cycling in surface waters and lakes, Dr.A.L.Heathwaite; nitrogen cycling in wetlands, Dr.C.Howard-Williams and Dr.Malcolm Downes, Taupo, New Zealand; nitrate cycling in marine waters, Dr. Nicholas Owens, Plymouth Marine Laboratory. Part 2 Spatial and temporal patterns of nitrate transfer: nitrate in groundwater, Dr.T.P.burt Oxford, Dr.S.T.Trudgill, Sheffield; nitrate losses from agricultural land, Dr.A.D.Armstrong, FDEU Cambridge; Dr.T.P.Burt, Oxford; nitrate in surface waters, Dr. P.J.Johnes, Liverpool; Dr.T.P.Burt, Oxford. Part 3 Management strategies: changes in agricultural practice, Dr.R.J.Parkinson, Polytechnic South West; controlling losses of nitrate by changing land use, Dr.T.P.Burt, Oxford; N.E.Haycock, Silsoe; treatment processes for nitrate removal from water supplies, Dr.T.Hall, WRc Swindon; Dr.B.T.Croll, Anglia Water Services; nitrate and the law, S.Ball, Sheffield. Part 4 Overview: The politics of nitrate in the UK, Professor T.O'Riordan, Dr.G.Bentham, University of East Anglia; nitrate - future problems - future solutions?, Dr.A.L.Heathwaite, Dr.T.Burt, Dr.S.T.Trudgill.
