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通过４ 年田间试验，探索出大豆田 除草剂甲草 胺、异丙甲草胺 及普乐宝的 除草效果，结 果表明：这３ 种除草剂的最适用量分别为３ ．００ Ｌ／ｈ ｍ ２ 、１ ．８０ Ｌ／ｈ ｍ ２ 、１ ．６５ Ｌ／ ｈ ｍ ２ ，对大豆高度安全，一次使用可防除大豆全生育期的杂草危害，大豆产量增产显著。
Through four years of field experiments, the herbicidal effects of herbicide alachlor, metolachlor, and poplar on soybean field were explored. The results showed that the optimum dosage of these three herbicides was 3. 00 L / h m 2, 1. 80 L / h m 2, 1. 65 L / h m 2. It is highly safe for soybeans and can prevent the weeds in the whole growth period of soybean from being used in one time. The soybean yield increases significantly.