Yield response factors of a given crop can be determined following the FAO approach (Doorenbos and Kassam, 1979. Yield response to water. FAO Irrigation and Drainage Paper no. 33. Rome, Italy, pp. 1–40) either by applying deficit irrigation throughout the whole growing period, or at one stage...

A non-linear optimization model for deficit irrigation is proposed in the present study to maximize the net financial return within the available resource constraints. The deficit levels of irrigation are kept as variables in the model with a flexibility to keep the crops either at full...