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内蒙古后山丘陵旱作区土壤贫瘠、水土流失严重，由于气候和耕作习惯原因，该地区一般种植的豆类是豌豆、蚕豆，从未种植过黄豆（学名大豆）。我们从培肥地力、轮作倒茬的角度考虑，从扩大豆科作物种植面积、调整种植业结构入手，结合当地气候条件，1995年从呼伦贝尔盟引进了大?
Due to poor soil and water and soil erosion in hilly and mountainous areas in the back hilly area of Inner Mongolia, peas and broad beans are commonly planted in the region due to climatic and farming practices. Soybean has never been planted. From the perspectives of fertility and rotation, we started with expanding the planting area of leguminous crops and adjusting the planting structure. Combining with local climatic conditions, in 1995,