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国内外研究结果一致表明,水稻苗期立枯病发病有三个条件:一是病原菌存在;二是土壤pH值偏高,有适于病原菌繁殖的土壤环境;三是秧苗素质弱。水稻秧苗在pH值4.5-5.5的土壤里生长良好。生产实践中多采取床土调酸培肥措施,防治立枯病,培育壮苗。黑龙江省农科院土肥所,为适应水稻旱育稀植技术大力推广和水稻大发展的要求,自
The results of domestic and foreign research consistently show that there are three conditions for the emergence of rice seedling blight: one is the existence of pathogenic bacteria; the other is the high pH value of the soil, suitable for the propagation of pathogenic bacteria; thirdly, the quality of the seedling is weak. Rice seedlings grow well in soils with pH values of 4.5-5.5. Production practice to take more soil acidizing fertilizer measures to prevent and control blight, nurturing strong seedlings. Soil and Fertilizer Institute of Heilongjiang Academy of Agricultural Sciences, in order to adapt rice cultivation technology to promote the cultivation of rice and large-scale development of rice requirements, since