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近代有机合成农药在防治农作物病虫害、杂草,提高产量和品质,以及在防治对人、畜、传染疾病的害虫,提高人民的健康水平,增加畜牧产品等方面都起着重要的作用。影响农业增产的因素很多,但合理地增加农药的使用量,是增产重要方法之一,这点在美国、日本及印度是明显的,特别是在日本如1952年每亩用药0.4斤,水稻每亩产量453斤,至1963年
Modern organic synthetic pesticides play an important role in the prevention and control of crop pests, weeds, yield and quality of crops, as well as prevention and control of pests and diseases of human and livestock diseases, raising people’s health level and increasing livestock products. There are many factors that affect agricultural productivity. However, increasing the use of pesticides reasonably is one of the important ways to increase production. This is obvious in the United States, Japan and India, especially in Japan where 0.4 kg per mu was used in 1952, Mu yield 453 pounds, to 1963