摘要
免耕同时施用相适应的除草剂,玉米一般可增产10～30％。它对防止侵蚀和保持水土等产生良好作用。近年在黔西北降水强度小、轻质土壤地区,所实施的绿肥聚垅免耕玉米,增产60～100％以上,投入产出比为1:3.9。是山区农业增产的有效途径之一。
The no-tillage combined with effective herbicide Can increase the yields froms 10 to 30 percentage generally in the results of our cultivative tests. The minimum tillage and no-tillage effectively pevent soil erosion and keep the soil and water from loss. Implmenting cultivation of no-tillage with freen manure has gor better effects 66.6-of corn productivity inteased up to 174 percentage and retio 3.9 of input to output. In northwest of Guizhou with less rain-intensity and light soil in recent years, the minimum tillage and no-tillage are good ways for developing the mountainous agriculture and increasing the quantity of the grains.
关键词
玉米
栽培
少耕
免耕
旱地
贵州
No-tillage,Minimun tillage,Green manure,ridge culture
Herbicide
