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EM是有益(效)微生物群的英文缩写,系日本琉球大学教授比嘉照夫1982年发明的复合微生物制剂。它由80余种微生物(光合细菌、乳酸
EM is beneficial (effective) microbial groups in English abbreviation, Department of Ryukyus University Professor Ka Ka Fu 1982 invention of the composite microbial agents. It consists of more than 80 species of microorganisms (photosynthetic bacteria, lactic acid