【摘要】 本文探讨了有效微生物（EM）处理老参地对土壤酶活性的影响。结果表明，用EM处理老参地，能显著提高土壤多酚氧化酶、土壤过氧化酶和过氧化物酶的活性；最终表现出对西洋参的生物性状有明显作用。也就是说EM提高土壤生物活性，对改良老参地有良好的促进作用。更多还原

【Abstract】 The effect of EM treatment on soil enzyme activity indicates that EM can apparently enhance soil enzyme activity such as polyphenol oxidase,catalase and peroxidase,Therefore soil bioactivity and fertility can be enhanced by EM.更多还原