红色边疆农场调查,大豆田长期使用氟乐灵,大豆根腐病加重。个别地块施药后,虽然禾本科杂草得到控制,但也严重地抑制了大豆生长。从大豆苗期调查看,有20%的植株长势弱,逐渐萎缩死亡。拔出后观察,根部为褐色,没有根瘤和须根,一部分大豆由于抗病性差,无法吸收水分和养分,在苗期陆续死 Red border farm survey, long-term use of trifolium in soybean fields, soybean root rot aggravated. After the application of individual plots, grasses and weeds were controlled, but also severely inhibited the growth of soybean. From soybean seedling survey, 20% of the plants grow weak, gradually shrinking death. Observed after pulling out, the root is brown, no nodules and fibrous roots, part of the soybean due to poor disease resistance, can not absorb moisture and nutrients, died one after another in the seedling stage