Agricultural water management Agricultural Water Management 45 (2000) 343-344 www.elsevier.com/locate/agwat Contents of Agricultural Water Management, Volume 45 VOL. 45 NO. 1 JUNE 2000 Factor analysis for the study of water resources contamination due to the use of livestock slurries as fertilizer M. Vidal, A. Lopez, M.C. Santoalla (Lugo, Spain) and V. Valles (Avignon, France). . Calibration and validation of a non-point source pollution model S. Grunwald (Madison, WI, USA) and L.D. Norton (West Lafayette, IN, USA). . Determination of evapotranspiration and crop coefficients of rice and sunflower with lysimeter N.K. Tyagi, D.K. Sharma and S.K. Luthra (Karnal, India) Impacts of gypsum and winter cover crops on soil physical properties and crop productivity when irrigated with saline water J.P. Mitchell, C. Shennan, M.J. Singer, D.W. Peters, R.O. Miller, T. Prichard, S.R. Grattan (Davis, CA, USA), J.D. Rhoades (Riverside, CA, USA), D.M. May and D.S. Munk (Fresno, CA, USA) An integrated drainage network analysis system for agricultural drainage management. Part 1: the system X. Yang (Bathurst, Australia), Q. Zhou (Kowloon, Hong Kong) and M. Melville (Sydney, Australia) An integrated drainage network analysis system for agricultural drainage management. Part 2: the application X. Yang (Bathurst, Australia), Q. Zhou (Kowloon, Hong Kong) and M. Melville (Sydney, Australia) VOL. 45 NO. 2 JULY 2000 Effect of tied-ridging on soil water status of a maize crop under Malawi conditions K.A. Wiyo (Leuven, Belgium), Z.M. Kasomekera (Lilongwe, Malawi) and J. Feyen (Leuven, Belgium) Soil and water indicators for optimal practices when reclaiming acid sulphate soils in the Plain of Reeds, Viet Nam O. Husson (Montpellier, France), M.T. Phung (Nguyén Binh Khiém, Viet Nam) and M.E.F. Van Mensvoort (Wageningen, The Netherlands).............. Irrigation automation based on soil electrical conductivity and leaf temperature N. Abraham, P.S. Hema, E.K. Saritha and S. Subramannian (Tavanur, India). . . Digital image processing for determining drop sizes from irrigation spray nozzles K.P. Sudheer (Kakinada, India) and R.K. Panda (Kharagpur, India) 344 Contents An analytical solution for bi-level drainage design in the presence of evapotranspiration A. Upadhyaya (Bhubaneswar, India) and H.S. Chauhan (Pantnagar, India) Using the IRMOS model for diagnostic analysis and performance enhancement of the Rio Cobre Irrigation Scheme, Jamaica A.L. Hales (Kingston, Jamaica) and M.A. Burton (Southampton, UK) Estimation of crop water requirements in arid region using Penman—Monteith equation with derived crop coefficients: a case study on Acala cotton in Sudan Gezira irrigated scheme A.W. Abdelhadi, T. Hata, H. Tanakamaru, A. Tada and M.A. Tariq (Kobe, Japan) . 203 VOL. 45 NO. 3 AUGUST 2000 Editorial Integrated water management: emerging issues and challenges H. Bouwer (Phoenix, AZ, USA) Characterisation of hydrogen isotope profiles in an agroforestry system: implications for tracing water sources of trees S.S.O. Burgess, M.A. Adams (Nedlands, Australia), N.C. Turner (Wembley, Australia) and B. Ward (Albany, Australia) Decision support for irrigation project planning using a genetic algorithm S.-F. Kuo (Ilan, Taiwan), G.P. Merkley (Logan, UT, USA) and C.-W. Liu (Taipei, Taiwan) Alternate furrow irrigation for maize production in an arid area S. Kang, Z. Liang, Y. Pan (Shaanxi, PR China), P. Shi (Gansu, PR China) and J. Zhang (Kowloon Tong, Hong Kong) Nutritional water productivity and diets D. Renault (Colombo, Sri Lanka) and W.W. Wallender (Davis, CA, USA)... Crop water requirements model tested for crops grown in Greece M. Anadranistakis, A. Liakatas, P. Kerkides, S. Rizos, J. Gavanosis and A. Poulovassilis (Athens, Greece) Effects of furrow irrigation methods, mulching and soil water suction on the growth, yield and water use efficiency of tomato in the Nigerian Savanna A.A. Ramalan and C.U. Nwokeocha (Zaria, Nigeria) Response of six vegetable crops to irrigation schedules M. Imtiyaz, N.P. Mgadla, B. Chepete and S.K. Manase (Maun, Botswana). . Contents of Agricultural Water Management, Volume 45