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稻瘟病的危害日益严重,除抗病品种选育和施药控制,合理施肥增强水稻对病害的抵抗性同样是综合防治的重要环节。近两年我们在江苏、浙江、江西和湖南等省的稻瘟病流行区,进行了施肥与稻瘟病危害关系的田间试验,主要结果总结如下: 一、氮肥用量与稻瘟病危害的关系 我国稻瘟病危害面积近年来所以扩大,氮肥用量的增加是重要原因:
The harm of rice blast is more and more serious. In addition to the selection and application of disease-resistant cultivars, the rational application of fertilizers to enhance the resistance of rice to diseases is also an important part of comprehensive prevention and control. In the past two years, we conducted field trials on the relationship between fertilization and rice blast in the blast areas in Jiangsu, Zhejiang, Jiangxi and Hunan provinces. The main results are summarized as follows: 1. The relationship between the amount of nitrogen fertilizer and the damage of rice blast Hazardous area so in recent years to expand, the increase in nitrogen use is an important reason: