氮肥和磷肥用量对小麦产量的影响

Effects of Nitrogen and Phosphorus Fertilizer Amounts on Wheat Yield

合理控制化肥用量已成为农业发展的必经之路,为了有效减少化肥用量、提高地力水平、增加作物产量,采用田间裂区试验,分析了不同绿肥品种下氮肥与磷肥用量对小麦产量等指标的影响。结果显示,绿肥混播条件下,氮磷肥料分别减施至120 kg N hm^(2)与80 kg P 2O 5 hm^(2)时,小麦可达到其产量的最高值,这表明该种施肥处理方式具有较好的应用效果与应用价值,可在农业生产中进行大力推广。

At present,reasonably controlling amount of chemical fertilizer has become the only way for agricultural development.In order to effectively reduce amount of chemical fertilizer,improve soil fertility level and increase crop yield,effects of nitrogen and phosphorus fertilizer on wheat yield under different green fertilizer varieties were analyzed by field split plot experiment.Results showed that when nitrogen and phosphorus fertilizer were reduced to 120 kg N hm^(2) and 80 kg P_(2)O_(5)/hm^(2) respectively,wheat yield could reach the highest value,which showed that this fertilization treatment had good application effect and value,and could be popularized in agricultural production.