ABSTRACT
Deficit irrigation (DI) is an irrigation strategy to reduce water use over full water requirement of the crop. The correct application of DI requires thorough understanding of the yield response to water and of the economic impact on crop production [19]. In regions of limited water resources, DI can be more profitable for a farmer to maximize crop water productivity instead of maximizing the harvest per unit land [6]. The saved water can be used for other purposes or to irrigate extra units of land. In other words, DI aims at stabilizing yields and at obtaining maximum crop water productivity rather than maximum yields [8, 10].
