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除草剂应用历史较短,酚类化合物是最早应用的有机合成选择性除草剂。从此开创了有机除草剂的先河,与无机除草剂相比,用量大大降低,选择性有了很大的提高。这之后有机除草剂迅速发展起来,相继发现了苯氧羧酸类、苯甲酸类、二苯醚类、二硝基苯胺类、酰胺类、氨基甲酸酯类、硫代氯基甲酸酯类、脲类、三氮苯类、季胺盐类等化合物的除草活性,并有大量化合物商品化,为农业的发展做出了重大的贡献。这些除草剂的用量最高效的几克/公顷,有的几公斤/公顷。直到1975年杜邦公司的Goege levitf博士发现磺酰脲类化合物的超高效生理活性,并开发了第一个高效品种绿磺隆,用量10-30克/公顷。从此开创了磺酰脲类除草剂的新领域,在近20年
Herbicides have a short history of application. Phenolic compounds are the first organic synthetic selective herbicides to be used. Since then create a precedent for organic herbicides, compared with inorganic herbicides, significantly reduce the amount of selectivity has been greatly improved. Since then, the rapid development of organic herbicides, have been found phenoxy carboxylic acids, benzoic acids, diphenyl ethers, dinitroanilines, amides, carbamates, thiocarbamates, urea Class, triazoles, quaternary ammonium salts and other compounds herbicidal activity, and a large number of commercial products, for the development of agriculture has made a significant contribution. The most effective amount of these herbicides is a few grams per hectare and a few kilograms per hectare. Until 1975, Dr. Goege levitf of DuPont discovered the super-efficient physiological activity of sulfonylureas and developed the first high-efficiency variety of chlorsulfuron in an amount of 10-30 g / ha. Since then create a new field of sulfonylurea herbicide in nearly 20 years