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青枯病是水稻苗期的主要病害之一,每年都有不同程度发生。重者造成秧苗全部死光,轻者秧苗成活率降低。使用立枯灵农药可以有效地控制住该病的发生。我国目前常使用的立枯灵是延边农学院朴盼奎研制成功的。使用方法是,15％立枯灵乳剂500倍液,每平方米苗床用药液2公斤,于播种时处理床土或于水稻一叶一心期喷浇。立枯灵防治水稻青枯病的效果,与床土pH值有关,偏碱时效果差。因此,在播种前每床用1公厅硫酸进行酸化处理,再喷浇立枯灵,可提高防效。
Bacterial wilt is one of the main diseases in rice seedling stage, and occurs to varying degrees every year. Severe death caused by seedlings all light, light seedling survival rate decreased. The use of Li Ling pesticides can effectively control the incidence of the disease. Li Kuling currently used in our country is successfully researched by Pan Pankui of Yanbian Agricultural College. The method of use is that 15% Liqu Ling emulsion 500 times, 2 kg per square meter of the seedbed solution, bed soil treatment at the time of planting or spraying a leaf in a heart of rice. Li Keling control effect on rice bacterial wilt, and bed soil pH value, the poor effect of partial alkali. Therefore, before sowing each bed with 1 acid sulfuric acid treatment, and then spray legislation Luling, can improve the control effect.