70年代末到80年代初是豆田化学除草的开始阶段，除草剂以氟乐灵、拉索、利谷隆为代表，使用方法是大豆播前或播后苗前土壤处理。80年代中期，豆田茎叶处理剂开始应用于生产，以拿捕净、杂草焚、排草丹等为代表，这一类除草剂推广以后，很快取代了前期的土壤处理剂，并取得了一 The late 70s to early 80s is the beginning of chemical weeding in soybean fields, herbicides with trifluralin, cable, Li Gu Long represented, the use of sowing before sowing or after sowing before soil treatment. The mid-80s, bean field stem and leaf treatment agent began to be used in the production, to capture the net, weed burning, row Dan, etc., after the promotion of this type of herbicide, soon replaced the previous soil treatment agent and made one