questions: asking that what should be done to increase the leaf yield of betelvine at the age of 5th year. 
 answers: suggested to apply recommended fertilizer dose like-urea@29 kilogram/bigha,ssp@41 kilogram/bigha,mop@33 kilogram/bigha.apply six foliar spray of zinc sulphate(4%)at 60 days interval to increase the leaf yield.the first spray should start in april.