The field experiment was conducted at College of Horticulture, Mudigere to know the effect of silicon and micronutrients on growth and yield of sapota. Silicon source like potassium silicate as foliar application was given at concentration of 6 and 8ml per litre, and calcium silicate as soil application was applied only once at concentration of 1.0, 1.5, 2.0 and 2.5 kg per tree. Boron was applied at the concentration of 2 and 3 g per litre and micronutrients were applied at 3 and 4 ml per litre at monthly intervals. The highest yield per tree (124.81 kg), yield per hectare (12.48 t), fruit characters like fruit weight (99.66 g), fruit length (5.55 cm), diameter of fruit (5.85 cm), volume of fruit (102.38 ml) and quality parameters like maximum total soluble solids (25.16%), shelf life (10.90 days), and the minimum physiological loss in weight (8.91%) were observed in treatment with foliar application of potassium silicate at 8 ml per litre.