九丰7号大豆是黑龙江省农垦科学院九三科研所选育的。1985年以九丰1号X九丰3号有性杂交，采用系谱法进行选择，1989年F4代决选，品系代号为九三90－25，1995年2月和1996年2月分别经黑龙江省农垦总局农作物品种审定委员舍、黑龙江省农作物品种审定委员舍审定并命名。1产量表现19 Nine Feng 7 soybean is Heilongjiang Provincial Academy of Agricultural Sciences Research Institute of 93 breeding. In 1985, nine Feng nine Xifeng 3 sex hybrids, the use of pedigree selection, 1989 F4 election, the code for the nine three 90 - 25, February 1995 and February 1996, respectively, by Heilongjiang Provincial Land Reclamation Bureau crop varieties validation committee homes, crop varieties in Heilongjiang Province examined and approved the members homes named and named. 1 production performance 19