Impacts of Different Fertilizer Application Models on Yield and Output Value of Maize

The 3415(total 15 treatments with 3 factors and 4 levels) fertilizer application model was used for evaluate the effects of different fertilizer application models on yield and output value of hybrid maize,and the equation of fertilization efficiency was obtained through regression analysis.The results showed that yield of maize was the highest with 9 127.2 kg/hm2 when the fertilizer rates of N,P2O5 and K2O were 319.4 kg/hm2,199.5 kg/hm2 and 128.3 kg/hm2,respectively;the benefit of maize was the best with the yield of 8 797.1 kg/hm2 when the fertilizer rates of N,P2O5 and K2O were 236.7 kg/hm2,125.5 kg/hm2 and 99.4 kg/hm2,respectively.Meanwhile,it was obtained the optimum fertilizer rate model of N,P2O5 and K2O and the technical parameters of soil testing and fertilizer recommendation under condition of low fertility level for the hybrid maize production in yellow soil field in Wugang City.