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利用电热温床及塑料大棚设施创造的生态环境 ,可满足大豆加代繁育所需要的生育条件。在河北省中、南部地区选用中、早熟大豆品种在 2月 2 0日至 2 5日育苗 ,2 5～ 30天苗龄移到塑料大棚栽培 ,6月 1 5日前后成熟 ,获得 1 6 0 0kg/hm2 左右的产量。解决了一年就地繁育两代大豆种子的技术问题
The use of electric hotbed and plastic shed facilities to create the ecological environment to meet the needs of soybean multiplication and breeding conditions. Medium and precocious soybean varieties were selected in the middle and southern part of Hebei Province for breeding on February 20-25, and the seedlings aged 25-30 days were cultivated in plastic greenhouse and matured around June 15, 0kg / hm2 about the output. Solved the technical problems of inbreeding two generations of soybean seeds in one year