随着免耕年限延长，土壤微生物商呈先增加再降低的趋势，免耕10年以上土壤微生物商最低。
The microbial quotient increased firstly, then decreased, along with the no-tillage years increasing, which was lowest in no-tillage 10 years.
列文虎克像珠宝商似地把放大镜按在眼睛上，观察自己的微生物甩动着长尾巴四处游动。
Pressing the glass to his eyelike a jeweler, Leeuwenhoek watched his own animalcules swim about, lashingtheir long tails.
土壤微生物量碳、基础呼吸作用、土壤代谢商是表征土壤质量的重要指标，并且与土壤本身的理化性质有关。
Soil basal respiration, soil biomass carbon, metabolic quotient are important indexes of soil microbiological, they relate to physical-chemical character of soil.
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