旱地玉米耕作、覆盖与播种方式研究

Study on Tillage, Mulching and Planting in Dryland Corn Field

６点多年试验结果表明，免耕半覆盖为最佳方式，具有明显的增产效果，比常规耕作增产２６．３％。免耕覆盖后对种植形式没有特殊要求。

Experimental results at six locations from 1990 through 1992 indicated that, compared to conventional tillage, corn grain yield increased 26. 3% under no-tillage with whole stalks half mulching.