The present study was conducted to investigate the role of calcium, potassium, boron and zinc on yield and quality of mango cv. Langra. The treatments includes CaCl 2 4%, CaCl 2 6%, CaCl 2 8%, K 2 SO 4 1.0%, K 2 SO 4 1.5%, K 2 SO 4 2.0%, Borax 1.0%, Borax 1.5%), Borax 2.0%, ZnSO 4 0.2%, ZnSO 4 0.4%, ZnSO 4 0.8%) and T 13 control. Spraying was done 30 days before anticipated day of harvesting. The result revealed that among all the treatments borax 2 % was most effective in increasing fruit

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... t, pulp weight, and pulp percentage. Whereas CaCl 2 4.0% had given highestyield/plant with better fruit quality attributes. On the other hand number of fruits per plant and fruit quality parameters such as TSS, TSS: acid ratio, sugars, total carotenoids, ascorbic acid content, total phenolics was highest in borax 1%. Thus, present study concluded that borax 1% and CaCl 2 4% was most efficient in enhancing yield and yield attributes as well as in retaining the quality of mango fruits.