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大豆是粮油两用作物。种植大豆能增加粮油产量和培肥地力,有利粮棉稳产高产。然而,在大豆生产上存在品种混杂退化,管
Soybean is a dual crop of grain and oil. Soybean cultivation can increase grain yield and fertility, favorable grain yield and stability. However, there is variety degradation in the production of soybeans, tubes