Study on Fertilizer Effect of Winter Wheat 3414 of Gaocheng City in Hebei Province

Based on ten 3414winter wheat fertilizer effect experiments,the effects of N,P and K fertilizer on winter wheat were studied.The results showed the yield effects of N,P and K were different.The N fertilizer significantly increased wheat yield in high level yield fields,but not in middle and low level yield fields.The P fertilizer significantly increased wheat yield in middle and low level yield fields,but not in high level yield fields.However,the K fertilizer did not significantly increase wheat yield in any level yield field.The results indicated the optimum recommend fertilization was N 151.6 kg/hm2,P2O5 126 kg/hm2 and K2O 52.1 kg/hm2,respectively.