【摘要】 以泉豆12为供试材料,研究覆膜栽培对春大豆生长发育和产量的影响,结果表明:覆膜栽培能够促使泉豆12出苗早且长势壮,生育期提早2、3d,增加叶绿素含量和叶面积指数,极显著提高产量;且黑膜覆盖效果优于白膜覆盖。更多还原

【Abstract】 With a soybean variety ‘Quandou 12’as the material,effects of film mulching on growth and yield of spring soybean were studied.The results showed that with film mulching,‘Quandou 12’germinated earlier and grew vigorously;its growing stage was 2 or 3 days earlier than usual;meanwhile,the content of chlorophyll and leaf area index were increased,and the yield of spring soybean were increased very significantly.It was also showed that the effects of black film mulching were better than that of white film.更多还原