研究了春玉米秆还地覆盖秋大豆对土壤含水量、结荚习性和产量的影响。结果表明 :春玉米收获后秸秆还地覆盖 ,可明显减少土壤水分蒸发 ,保湿效果显著 ,能减轻秋旱为害 ,利于秋大豆生长发展、开花结荚、鼓粒 ,提高产量 ,还地数量以 3/ 4以上为好 The effects of spring corn stalks on the coverage of autumn soya bean on soil water content, pod habit and yield were studied. The results showed that the straw was also covered after spring maize harvest, which could significantly reduce the evaporation of soil moisture and significantly improve the moisturization effect. It could reduce autumn drought damage and benefit the growth and development of autumn soybean, flowering and podding, and boosting grain yield. / 4 above as well