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农药主要用于防治种植业有害生物。因此,必须对中国农业有害生物总体情况、动态特点等有所了解,才能更好地找准中国农药工业的发展方向。中国的国情和农业生产现状决定了中国化学农药的生产和使用在相当长的时间内仍数量巨大。一、生物灾害种类多,危害重中国农业生物灾害种类繁多,《中国农作物病虫害》(第二版)记载1648种,其中病害724种,害虫害螨838种,杂草64种,害鼠22种。另有报道,农田杂草704种,则总数可达2288种。考虑到复种因素
Pesticides are mainly used to control plantation pests. Therefore, we must understand the overall situation and dynamic characteristics of agricultural pests in China in order to better identify the development direction of China’s pesticide industry. China’s national conditions and the status quo of agricultural production determine that the production and use of chemical pesticides in China is still huge in a considerable amount of time. First, many types of biological disasters, endangering a wide range of Chinese agricultural biological disasters, “Chinese crop pests and diseases” (second edition) recorded 1648 species, of which 724 kinds of diseases, 838 kinds of pest mites, 64 weeds, . Another report, 704 kinds of farmland weeds, the total number of up to 2288 kinds. Taking into account the multiplication factor