冬大豆生产上存在的主要问题是冬，春期间寒潮袭击，低温冷寒使冬大豆的生长发育受阻，产量低。
The main problem in production of winter soybean is the crops suffered from destructive cold wave during winter and spring. It made winter soybean inhibit in their growth and get low yield.
除草剂药害对大豆正常生长发育产生明显的影响。
The effect of herbicide damage on the growth and development of soybean was evident.
大豆田土壤微生物的数量变化与大豆生长发育状况相关性不明显。
The quantity variety and soybeans of the soybean farmland soil microorganism grow to develop the condition relativity not obvious.
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