Trials conducted to find out the effect of urea on mulberry leaf yields revealed that after one year of planting 78.8%, 120%and 175% increase in annual leaf yield occurred in 100kg N 200kg N and 300 kg N respectively, per hectare as against check where no fertilizer were applied. After two years of planting the total annual increase in leaf yield was 55% 100% and 120% kg per hectare in 100kg N 200kg N and 300kg N respectively as against check where no fertilizer were applied. It was found that application of Nitrogen (Urea) at the rate of 200kg per hectare if applied 50%after sprouting in spring and 50% after 20 days of 1st leaf plucking increased 100% leaf than no fertilizer application.