Herbicide is used to eradicate or control weed growth. Agricultural chemical weeding can be traced back to the beginning of the end of the 19th century, European grapes in the prevention of downy mildew, I occasionally found some damage to Bordeaux on cruciferous weeds without harming cereal crops; France, Germany, the United States also found that sulfuric acid and copper sulfate Such as weeding, and for weeding wheat, and other places.Organic herbicide period began in 1932 selective herbicide dinitramide phenol found. 1940s 2,4 - drop the emergence of organic herbicide greatly to the rapid industrial development. 1971 synthesis of Roundup Ready, a broad spectrum herbicide, the characteristics of the environment pollution-free, organic phosphorus herbicide is a major breakthrough. In addition, a wide range of new formulations and the use of new technology emerges, the effect of weeding greatly improved. In 1980 when the world herbicide pesticide total sales account for 41 per cent, pesticides and leaped over the first. , The world is becoming a smooth development of herbicides, mainly develop high-efficiency, low toxicity, broad-spectrum, low consumption of varieties of environmental pollution on the one-time treatment agent gradually become mainstream.

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