轮作系统不但提高了作物产量，而且总初级生产力、光能利用率、辅助能利用率分别比连作系统高17.47%、9.87%和5.0%。
Moreover, the overall initiative productivity, light energy using rate and assistant energy using rate was increased by 17.47%, 9.87%, 5.0% respectively.
对轮作及大豆、玉米、小麦长期连作白浆土中氮含量及有机态氮组分变化进行研究。
The nitrogen contents and nitrogen forms were studied in albic soil with longterm crop rotation and soybean, maize, wheat continuous cropping.
采用田间与盆栽试验方法研究了大豆专用复混肥对轮作、连作大豆抗逆性的影响。
Effects of soybean specific fertilizer on adverse resistance of soybean in rotation and soybean continuous cropping were investigated by pot and field plot experiments.
应用推荐