The effects of herbicides alachlor metolachlor and propisochlor applied for soybean fields had been studied in field experiments for 4 years.

• 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。