灌溉水与水稻白叶枯病的发生发展有着极其密切的关系。各地的調查和研究都指出:秧田淹水、本田受涝、深灌等都会加重发病。在发病地区无論是秧田或本田的灌溉水中确有大量病菌存在,并在一定时期內可以传病,成为传染和誘发病害的重要媒介,特别是苗期淹水对引起后期发病关系更大。由于秧田的感 Irrigation water has a very close relationship with the occurrence and development of rice bacterial leaf blight. Surveys and studies all over the country have pointed out: flooding seedlings, Honda flooding, deep irrigation will aggravate the disease. There is indeed a large number of pathogens present in the irrigated water of either seedling or Honda in the affected area, and can be transmitted for a certain period of time to become an important medium for infection and disease-induced disease. In particular, flooding at seedling stage has a greater impact on the later stage of disease . Thanks to the feeling of seedling