Interaction Effects of Sowing Date, Irrigation Levels, Chitosan, and Potassium Silicate On Yield and Water Use Efficiency for Maize Grown Under Arid Climate

Abstract Adopting foliar antiperspirants reduces the negative effects of water stress on crop production. In this study chitosan (Ch) and potassium silicate (PS) maize sowing at two dates under irrigation levels (100% applied −Ir 00 70% 70 ) were investigated. Thus, during spring fall seasons 2020–2021, a field experiment similar experiments was conducted experimental farm Water Studies Research Complex (WSRC) station, National Center, Toshka—Abu Simbel City, Egypt, which allocated in main plot, then strip-plot design with five replicates used. It found that seeds season led to attaining higher yield than spring. Moreover, adoption Ir provides better use efficiency 100 , particularly date. addition, Ch concentrations spring, improvements while PS seasons, yield. concluded based present findings applying as applications 500 (mg l −1 had significant maintain yield, arid regions Toshka district other areas.