soil micro-ecological-environment 基本例句 微生态环境 This study was carried out with both sterilized soil and field soil containing M.incognita,this method may enhance the pace from laboratory study to field application.本研究不但以消毒土为研究背景，而且以田间病土这个微生态环境为研究背景，缩短了实验室研究到田间应用的距离。