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

Mohamed S. Abbas, El-Sayed I. Gaber, Sayed T. Abou Zied, Reda E. Essa and Mostafa M. Afifi

Background and Objective: 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. Materials and Methods: 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. Results: 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. Conclusion: 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.

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