Foliar Application of Micro Silica, Potassium Chloride and Calcium Chloride Enhances Yield and Fruit Quality of Balady Orange Tree

This work was done to study the influences of foliar application with micro silicon alone or combined with potassium chloride and Calcium chloride (CaCl2) on leaf meaner contents, yield and fruit quality of Balady orange trees during two successive seasons 2015 and 2016 conducted in the experimental farm, faculty of Agriculture, Al Kawamell, Sohag University. The results indicated that foliar spraying of Balady orange trees with micro silicon alone or combined with potassium chloride (KCl)and Calcium chloride (CaCl2) increased yield and Fruit physical and Chemical properties such as TSS, V.C. and TSS/Acid ratio compare to the control. All treatments spraying with micro silica alone or combined with potassium chloride and calcium chloride were significantly increased yield and fruit quality (except micro silica at 0.025% and micro silica at 0.025% + CaCl2 at 2 % in both seasons) and leaf meaner contents as compared with the control treatment. The highest value was observed with the trees sprayed with micro silica at 0.1 + potassium chloride at 2% + calcium chloride at 2% in both seasons respectively, flowed by the treatment sprayed with micro silica at 0.1% + potassium chloride at 2% in both seasons. The lowest values were obtained by the control treatment in both seasons.