Evaluation of Potassium Sources, Rates and Pattern on the Yield and Quality Traits of Fertigated Wheat Grown in Sandy Soil

Fertigation provide efficient method for fertilizer and irrigation of water in order to evaluate some potassium sources on wheat (Giza 168) production in sandy soil at El-Sadat City, El-Menoufia Governorate, Egypt, amid the two winter seasons 2016/2017 and 2017/2018. A split-split plot design in a randomized complete block arrangement was used with 3 replications. The main plots were allocated to the 2 potassium sources (potassium sulfate and potassium chloride) 3 potassium rates (60, 120 and 180 kg ha-1 K2O beside one treatment without potassium fertilization) were devoted to sub-plot and three patterns (1, 2 weeks and 1 month) were devoted to sub-sub plot. The results showed that potassium had essentially influenced the yield and yield components of wheat and potassium fertilizers such as K2SO4 and KCl improved the quantity and quality of wheat. These results suggest that potassium application at 180 kg ha-1 associated with one pattern under fertigation can be good for obtaining an optimum yield of wheat. From this study can be concluded that the potassium application influence at 180 kg ha-1 K2O gave highly yield and chemical constituents under fertigation.