黔豆２号系用大方六月早为母本，徐豆２号为父本进行有性杂交，经６年１３代选育而成的高产大豆新品种。历年省内外区试和生产试验示范的亩产量均稳定在１２０～１４０公斤之间，且生育期适中，适应性强，品质好。１９９３年通过贵州省农作物品种审定委员会审定可在全省推广。 Qiaodou No. 2 line with generous June as early as the female parent, Xu bean No. 2 as the male sexual hybrids, after 6 years of 13 generations of breeding new high-yielding soybean varieties. Over the years, both domestic and overseas regional trial and production demonstration of mu yield have stabilized between 120 and 140 kg, and the growth period is moderate, adaptable, good quality. In 1993 through the Guizhou Provincial Crop Variety Approval Committee validation can be promoted in the province.