Effect of Nitrogen Fertilizer on Wheat Variety-Wanmai 38 Yield Component

The effect of the application of the different levels of nitrogen fertilizer in the different stages on Wanmai 38 yield component was studied. The experimental results indicated when N fertilizer as base fertilizer was 111 kg/hm2,the best stage of nitrogen fertilization was in elongation stage and the yield components was coordinate while yield was high. The relationship between yield and level of nitrogen fertilization in elongation stage was parabola-ship,within the nitrogen fertilization of 100~144.95 kg/hm2, the yield components was coordinate with both yield was high.