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中草药提取物与杀菌剂复配对烟草赤星病菌的抑制效果

Guizhou Agricultural Sciences(2017)

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Abstract
为减少化学农药的使用,降低农药的残留,提高对烟草赤星病的防效,选用中草药甘草和穿心莲提取物分别与杀菌剂40%菌核净和80%代森锰锌进行复配,采用生长速率法测定复配剂对烟草赤星病菌的抑制作用,并判断其复配后是否具有协同增效作用.结果表明:4种组合中甘草提取物与40%菌核净复配,穿心莲提取物与40%菌核净复配都具有明显的增效作用,其共毒因子分别为100.56和95.87;实际抑菌率分别为100%和97.62%,此2个组合的中草药提取物与杀菌剂体积比为1∶9时增效作用较显著.
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