Perspective on Irrigation Management and Salinity

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Abstract
Arid and semiarid areas face increasing demands on their limited water supplies. In many regions agriculture utilizes the bulk of the available fresh water, often exceeding the sustainable water yield and relying on utilization of subsurface reserves. Increased water demands by urban users will require greater water use efficiency by the agricultural sector as well as use of urban waste waters and under-utilized brackish waters. To date advances have been made in irrigation management, but genetic research has not altered the basic water requirements of plants.