胺苯黄隆（代号ＤＰＸ—Ａ７８８１）是美国杜邦公司８０年代初开发的磺酰脲类油菜田除草剂［１］。该品种具有用量低、除草活性高、可有效的防除油菜田内主要单、双子叶杂草，并对人畜安全和对环境压力小等优点。但在实际应用中发现，由于胺苯黄隆的持效期因土壤类型、气候及? Amine (referred to as DPX-A7881) is a sulfonylurea herbicide developed by DuPont in the early 1980s [1]. The variety has the advantages of low dosage, high herbicidal activity, effective control of main single and dicotyledonous weeds in rape fields, safety to human beings and animals and small pressure on the environment. However, in actual application, it was found that the persistence of ammembraniine was affected by soil type, climate and temperature.