黔豆４号系用浙春１号为母本，钢７３４５－４为父本进行有性杂交，经３年５代选育而成的高产优质（蛋白质含量高达４７％）大豆新品种。１９９１～１９９２年省区试亩产８４．１ｋｇ，比对照种安豆２号增产９．５％。生育期适中，适应性较强。１９９５年通过贵州省农作物品种审定委员会审定，定名为黔豆４号，可在毕节、安顺、六盘水、遵义、贵阳等地区推广。 Qiaodou 4 was a high-yielding and high-quality soybean (up to 47% protein content) new breed of soybean with Zhenshu 1 as female parent and steel 7345-4 as male parent. From 1991 to 1992, 84.1 kg of mu per plant was tested in the provincial area, 9.5% more than that of the control. Moderate growth period, adaptability. In 1995 through the Guizhou Provincial Crop Variety Approval Committee validated, named Qiaodou 4, in Bijie, Anshun, Liupanshui, Zunyi, Guiyang and other regions to promote.