Department of Water Management Silsoe College Cranfield University Silsoe, Bedford MK45 4DT, UK
Department of Biological and Irrigation Engineering Utah State University Logan, UT 84322-4105 USA
Wageningen Agricultural University Department of Irrigation and Soil and Water Conservation Nieuwe Kanaal 11 6709 PA Wageningen, The Netherlands
Depart of water Management in Arid Zones Agricultural Research Department The Winand Staring Centre for Integrated Land, Soil and Water Research (SC-DLO) Marijkeweg 11/22, P.O. Box 125 6700 AC Wageningen, The Netherlands
Canadian National Committee International Commission on Irrigation and Drainage Canadian Water Resources Association 901 McKenzíe Street South Box 700, Outlook Saskatchewan Canada SOL 2NO