秸秆还田下不同氮肥处理对玉米生长发育的影响

Effects of Different N-fertilization on the Growth of Maize with Straw in the Field

通过对秸秆还田条件下6个氮肥处理对玉米生长发育的研究,探讨氮肥对玉米农艺性状和产量的影响。结果表明:在秸秆还田条件下,处理3的干物质、经济系数及产量性状在6个处理中表现最好,产量达9 027 kg·hm^(-2),而且比同一施肥水平秸秆不还田的产量高4.7%,说明合理的轮作制度配合秸秆还田是一项值得推广的技术模式。

The effects of six N-fertilization on the yield and agronomic traits of maize with straw in the field were studied.The results showed that treatment 3 had the highest dry matter,economic factors and yield.The treatment 3 obtained yield 9 027 kg·hm^（-2）,it was increased 4.7%compared to the control.The results suggested that the rational rotation system in combination with straw should be polulalized.