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水稻恶苗病在苏中各稻区均有不同程度发生,近年来,随着旱育技术大面积推广和种子工程全面实施,该病发生危害逐年加重,已成为水稻生产上的重要病害.近两年调查,本地区一般田块穴发病率6.7%、病株率3.01%,减产3%-6%;严重田块穴发病率37.5%、病株率26.7%、死穗率22.7%,减产三成以上.
In recent years, with the popularization of large-scale popularization of dry-technology and the full implementation of seed engineering, the occurrence of rice Bakanae disease has been increasing year by year and has become an important disease in rice production. Two years of investigation, the general incidence of Taekasong in this area was 6.7%, the diseased plant rate was 3.01% and the yield was reduced by 3% -6%; the incidence of serious Taekuchi was 37.5%, the diseased plant was 26.7%, the dead spike was 22.7% More than three percent.