The use of KNO3 spray on various fruit crops like Mango, Banana, Sapota, Custard apple, Guava, Citrus, Pomegranate, and Papaya has shown positive effects on yield and quality. For example, applying KNO3 at specific stages of growth increased fruit yield, improved physical parameters, and enhanced organoleptic characteristics. Different fruit crops responded differently to KNO3 application, with some requiring multiple sprays at specific times for optimal results. Overall, the study suggests that KNO3 can be a beneficial tool for fruit growers to improve the productivity and quality of their crops.