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毛豆是我国主要的蔬菜作物之一，它蛋白质含量高，营养丰富，是人类所需蛋白质的主要来源。随着耕作制度的改进及复种指数的提高，以及城乡人民对食用毛豆的需求，选育高产、早熟、适宜作反季节栽培的毛豆品种，是生产上的迫切要求。宁镇3号是宁镇1号经60Co辐射处理选育而成，
Soybean is one of the main vegetable crops in our country. Its high protein content and rich nutrition are the main sources of protein needed by human beings. With the improvement of tillage system and the improvement of multiple cropping index, as well as the demand of urban and rural people for edible soybean, breeding soybean varieties suitable for high yield and precocious cultivation suitable for season cultivation is an urgent requirement in production. Ning Town, No. 3 is Ningzhen No. 1 by 60Co radiation treatment breeding,