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水稻干尖线虫病在天津市郊区普遍严重为害。1957年8月下旬在水稻开始抽穗期(晚秧进入孕穗盛期)线虫病较显著时,在务本、卧河等9个乡及双林农场共10个重点地区进行了调查,调查稻田83,414.85亩,百分之百感病,平均墩(蔸)的感病率为38.08%,株的感病率为9.55%,平均减产约11.32%。估计全郊区(约50万亩稻田)因病减收稻谷达1,500万斤。
Rice dry tip nematode disease is generally serious damage in the suburbs of Tianjin. In late August 1957, at the beginning of rice heading stage (late seedling entering the booting stage), the nematode disease was more conspicuous. In 9 key towns such as Shuoben and lying river, and 10 key areas in Shuanglin Farm, surveys were conducted to investigate the rice fields 83,414.85 Mu, 100% susceptible. The average infection rate was 38.08%. The infection rate was 9.55% and the average yield was 11.32%. It is estimated that the entire suburbs (about 500,000 mu of paddy fields) reduced the amount of paddy up to 1,500 million catties.