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根据辽宁省的水热资源大秋作物成熟一茬有余,两茬不足,通过进行冬小麦的选育和育种及两茬作物复种,提高单位面积的经济效益。
According to Liaoning Province, the water and heat resources autumn crop maturity more than one crop, two crop deficiencies, through the winter wheat breeding and breeding and two crop cropping, unit area of economic efficiency.