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1品种来源八五七1号大豆系黑龙江省八五七农场四队农艺师周长流，从合丰25号群体中经多年系选而成。代号为8574－2，别名为长流2号。1997年1月通过黑龙江省农垦总局农作物品种审定委员会审定，并命名推广．2产量表现1992～1993年在八五七农场四队和科研站进行了产量鉴定试验，?
1 Source of Variety 855 No. 1 Soybean Department of Heilongjiang Province 857 farms four teams of agronomists Zhou Chang Liu, Hefeng No. 25 from the group after years of selected from. Code-named 8574-2, alias for long flow 2. In 1997 January through Heilongjiang Provincial Land Reclamation Bureau Crop Variety Approval Committee for validation, and named promotion. 2 Production performance 1992 ~ 1993 in the 857 farm four teams and research stations were yield test?