大豆/玉米混作种植方式对氮素利用与产量的影响

摘要

[Objective ] The research aimed to study the effects of cropping patterns on nitrogen accumulation and the yield of soybean and corn. [Method] A field experiment of three nitrogen levels and three cropping patterns was carried out. [Result] In the mixed cropping system, corn showed a competitive advantage, and the yield was higher than that of monocropping by 0.36% -3.74%. However the yield of soybean in the mixed cropping system was lower than that of monocropping by 26.93% - 46.90%. [ Conclusion ] Total nitrogen use efficiency of mixed cropping and total yields were higher than those of monocultured corn and monocultured soybean, and the mixed cropping system showed an advantage of mixed cropping.%[目的]研究大豆、玉米不同种植方式对氮积累量及产量的影响.[方法]采用田间小区试验,设置3个氮素水平以及3种种植方式.[结果]在玉米/大豆混作系统中的玉米表现出竞争优势,产量比单作玉米高0.36％ ～ 3.74％,而混作中的大豆产量比单作大豆降低了26.93％ ～ 46.90％.[结论]混作处理的总氮肥利用率和总产量均高于单作玉米和单作大豆,整个混作系统表现出混作优势.