七十年代以来,随着双三制扩大和氮素化肥用量的增加,吴江县稻瘟病日益严重,1980～1984年因稻瘟病大流行,损失稻谷近4000万斤。1983年我们以吴江县铜锣乡后练村2767.4亩纯双季稻区为综防基点,进行试验示范,取得显著成效。1984年又以铜锣乡后练村为综防中心点,带动全县17个乡111个村,综防面积16万余亩。进一步验证了以下综防技术的可靠性和实用价值。 Since the seventies, with the expansion of double-three system and the increase of the amount of nitrogenous fertilizer, the rice blast in Wujiang County has become increasingly serious. Since 1980-1984, due to the rice blast pandemic, nearly 40 million kilograms of rice was lost. In 1983, we took 2767.4 mu pure double cropping rice paddy area in Houlu Village, Tongluogou Township, Wujiang County as the base point for comprehensive defense, and carried out experiments and demonstrations with remarkable results. In 1984 Tongluogunhou Liancun for the comprehensive prevention center, driving the county’s 17 townships 111 villages, comprehensive prevention area of ​​160,000 acres. Further verify the following comprehensive prevention technology reliability and practical value.