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１９９４年～１９９６年选择岭东农区有代表性乡镇，同一品种，同一土壤生态条件，不同茬口的地块，在大豆不同生育时期定点、定期调查，结果表明：大豆重迎茬种植使产量分别降低３６．５６％和１８．９１％。使大豆根数，根瘤数、植株鲜重降低。单株生产力和粒重下降。重迎茬种植导致大豆苗期病虫害发生，使大豆根腐病增加１６１．０２％和１６８．６８％，根潜蝇被害率增加６５．７１％和４０．２％，大豆食心虫虫食率增加８０％和７７．３３％，对大豆中后期叶斑病的影响不大。
From 1994 to 1996, we selected the representative townships, the same species, the same soil ecological conditions and the different plots in Lingdong rural areas to conduct regular surveys at different growth stages of soybean. The results showed that the yield of soybean was higher than that of the normal crops Reduce by 36.56% and 18.91%. So that the number of soybean, nodules, plant fresh weight decreased. Plant productivity and grain weight decreased. The planting of heavy stubble crop led to the occurrence of pests and diseases of soybean at the seedling stage, which increased the root rot of soybean by 161.02% and 168.68%, the damage rate of root stalk flies increased by 65.71% and 40.2%, and the feeding rate of soybean heartworm increased by 80 % And 77.33%, respectively, had little effect on soybean leaf spot in the late stage.