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用“索氏提取法”和“冷浸法”制备８种苦豆子提取物Ｓ１－Ｓ８，结果表明Ｓ２与灭多威混合后制剂理化形状稳定，经联合毒力测定表明混合制剂具有明显的增效作用。
Eight kinds of Sophora alopecuroides extracts S1-S8 were prepared by “Soxhlet extraction method” and “cold soaking method”. The results showed that the physical and chemical forms of the preparations after the mixture of S2 and methomyl were stable. The combined toxicity test showed that the mixed preparations had obvious increase Effective effect.