Effects of Combined N and P and K and Zn Fertilizers on Corn Stalk Rot and Yield of Summer Maize
The experiment was carried out to study effects of N,P,K,Zn on corn stalk rot and yield in rotation system of winter wheat and summer maize by two years. The results showed that N fertilizers was first faction on influence of corn stalk rot, K second, disease index was most after the application of N continued heavy, non-application of K second, application of K had significantly effect on mitigating diease. N fertilizers was first faction on influence of yield,P second,N and P and K fertilizer application was significantly superior to N and P on corn stalk rot and yield. Soil available Zn was lowest after the application of P continued heavy, the application of N continued heavy was secondly. N and P and K and Zn fertilizer application was significantly superior to N and P and K on corn stalk rot and yield and ear leaf character.