Fuchs, M., Agricultural Research Organization, Institute of Soil, Water and Environmental Sciences, Volcani Center, PO Box 6, Bet Dagan 50250, Israel

The decrease of annual irrigation application rate observed since 1950 was reversed in 1988 as a result of a sudden increase of the amount of treated effluents used for irrigation. Intensification of research on irrigation with effluents and marginal water starting in 1994 resulted four years later in the renewal of the decrease of irrigation application rate. © 2006 Springer-Verlag.