国营农场秋熟大豆大面积机械化高产栽培,关键在于抓一播全苗和防除田间杂草。尽管在大豆播种时使用氟乐灵、地乐胺等除草剂处理土壤,但由于药剂对土壤湿度要求高,加之三夏大忙,部分田块不能及时进行土壤封闭处理,须在大豆生长期间用除草剂茎叶处理,即二次化除。4年多的实践,我们认为秋熟大豆二次化除应抓好以下几方面。 State-owned farms autumn cultivation of large areas of mechanized high-yield cultivation of soybeans, the key is to grasp a sowing seedlings and field weed control. Although the use of trifluralin and other herbicides in the sowing of sowing the soil, but due to the high requirements of the soil moisture on the drug, coupled with the summer and summer, some plots can not be closed soil in time, must be used during the growth of soybean weeding Agent stems and leaves, that is, the second addition. More than 4 years of practice, we believe that the second crop of autumn and ripening soybean should do a good job in the following aspects.