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通过小麦播期、种植密度对小麦纹枯病发病程度的影响对比试验,结果表明,播期早、播种密度大是纹枯病发生程度加重的主要原因。冬前和播种—拔节期积温多,拔节前后气温高,纹枯病病情指数高。
Through sowing date of wheat and planting density on the incidence of wheat sheath blight, the results showed that the sowing date was the main reason for the increased occurrence of sheath blight. Pre-winter and sowing - jointing accumulated temperature, high temperature before jointing, sheath blight disease index high.