1978年以来,我们连续两年用2,4-D丁酯对小麦、莜麦、谷黍和玉米等禾谷类作物进行化学除草试验,杀草效果显著。一般施药后5-7天杂草陆续死亡。据观察,2,4-D丁酯除草剂对灰菜、刺儿菜、蒲公英、苦苣菜、独行菜等阔叶杂草和三棱草等单子叶杂草杀除效果达84-95％,一般比人 Since 1978, we have been using 2,4-D Butyl Ester for chemical herbicidal tests on cereals such as wheat, oats, millet and corn for two consecutive years. 5-7 days after the general application of weeds gradually died. It was observed that 2,4-D-butyl herbicide on the gray cabbage, sage, dandelion, Sonchus, lily and other broad-leaved weeds and three-season grass and other monocotyledonous weeds to kill 84-95% , Generally more than people