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Soybean cyst nematode (Heterodera glycines) is a kind of widespread nematode,especially in the northeast of China.It results in a severe diminished output on soybean, and therefore its prevention is pressing.Biological control, as an environmentally friendly way, has become more generally preferred.In the research, 27 bacteria which were identified as 10 genera were selected against soybean cyst nematode from 810 species of bacterium cultures.