纹枯病是我县主要病害之一,一般每亩损失稻谷30—50斤,个别田块可达百斤以上。据试验,氮肥用量多,发病重,而水稻的丰产,则又需足够的氮肥,为解决此矛盾,我县在推广氮肥深施的基础上,1983年对早、晚稻进行了氮肥不同施用方法与纹枯病发生的试验调查结果得出:氮肥深施对纹枯病的防治效果很好。 Sheath blight is one of the major diseases in our county, the general loss of rice per acre 30-50 pounds, individual fields up to 100 pounds or more. According to the experiment, the amount of nitrogen fertilizer is more and the incidence is heavy, while the high yield of rice requires enough nitrogen fertilizer. In order to solve this contradiction, based on the promotion of nitrogen fertilizer application in our county, different application methods of nitrogen fertilizer were applied to early and late rice in 1983 The test results with sheath blight found that the application of nitrogen fertilizer to sheath blight was effective.