大豆是扎兰屯市一大优势作物。1983年以来播种面积逐年增加,1986年播种面积达到四十多万亩,占全市粮豆播种面积的百分之四十。1986年,由于大豆菌核病在全市范围内大发生,使大豆产量受到很大损失,并对今后发展大豆将产生严重的影响。我们根据上级要求和部署组织技术力量,调查分析了全市大豆菌核病发生情况。 Soybean is a dominant crop in Zhalantun. Since 1983, the sown area has been increasing year by year. In 1986, the sown area reached over 400,000 mu, accounting for 40% of the sown area of ​​grain beans in the city. In 1986, due to the large-scale occurrence of sclerotinia in the whole city, soybean production suffered a great loss and will have a serious impact on the development of soybean in the future. According to the requirements of the superior and the organization and deployment of technical forces, we investigated and analyzed the occurrence of the city’s soybean sclerotinia.