Compared synthetically,the effect of treatment with N300P90 was the best under the field trial condition and its yield reached 62.00 kg/hm2,while the net was 4 152.7 yuan/hm2 and the VCR(value cost ratio) was 2.32.

• 综合比较氮磷肥配施经济效益；在试验设计条件下；N300P90处理的配比效果最好；产量达62.；00 kg/hm2; 净利润最高；增收4 152