Effects of Mixed Nitrogen and Potassium Fertilizer on Growth and Leaf Yield of Mulberry

The field trail was carried out to investigate the effect of mixed nitrogen and potassium fertilizer on growth and leaf yield of mulberry.The results show that the rational mixed rate of nitrogen and potassium fertilizer can improve the branch number/plant,leaf number/branch,length and average weight of branch and average weight of the single leaf,that the highest leaf yield can be gained under applying 450 kg/ha of nitrogen and 300 kg/ha of potassium,which is 35.2% higher than CK and there is the positive mutual relationship between nitrogen and potassium fertilizer in increasing mulberry leaf yield.