Evaluation of cotton yield under irrigation by domestic wastewater

In order to investigate the effect domestic wastewater of Torbat-Heydarieh on cotton (Gossypium hirsutum L), a field experiment was conducted in a completely randomized design with irrigation water treatments and 3 replications. The treatments were consists of well water (control treatment) T1, treated wastewater T2, 50% wastewater and 50% well water composition T3, alternate irrigation of well water and treated wastewater T4, and 66% wastewater and 33% well water composition T5. The results showed that, the effect of irrigation water treatments was significant on total yield in the first and second year at the P Keywords: Cotton yield, Wastewater, Water Use Efficiency, Varamin Variety