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近年来,小麦纹枯病已上升为小麦生产上的重要病害。小麦发病后,结实率和千粒重明显下降,后期易倒伏,严重的全株枯死。1985年4月开始,我们在泰县良种场和泰县大冯、运粮等乡进行了小麦纹枯病的调查与防治。 一、小麦纹枯病的田间分布 通过近100块不同类型田的调查,在发病前期,纹枯病田间分布有两种情况:旱作茬麦田,纹枯病在田间呈核心分布;水稻茬麦田,纹枯病在田间呈嵌纹分
In recent years, wheat sheath blight has risen as an important disease in wheat production. After the onset of wheat, seed setting rate and grain weight decreased significantly, the late lodging easily, severe whole plant died. Since April 1985, we conducted surveys and control of wheat sheath blight in the township of Taixian County, Dafeng County and Taiyun County of Tai County. First, the field distribution of wheat sheath blight Nearly 100 different types of field investigation, early in the incidence of sheath blight in the field there are two situations: dry crop stubble, sheath blight in the field showed core distribution; rice stubble field Sheath blight was embedded in the field