重迎茬对大豆病虫害及经济性状的影响邵玉彬，张万海，胡兴国（呼盟农料所，扎兰屯市１６２６５０）呼盟大豆重迎茬种植非常普遍，面积达大豆总括面积的８０％以上，其中重茬面积占６０％以上。１９９２年调查扎兰屯市团结乡同一地块内，连作３年大豆亩产只有６０ｋｇ，比... Effect of heavy stubble on soybean pests and diseases Shaoyu Bin, Zhang Wanhai, Hu Xingguo (Huomeng Institute of Agricultural Materials, Zhalantun 162650) The planting of reclaimed soybean is very common, and the area is more than 80% of the total area of ​​soybean, Which stubble area accounted for more than 60%. 1992 Zhalantun City Tuanjie Township in the same plot, even for 3 years, soybean yield per mu only 60kg, than ...