drab soil

基本解释

Among the treatments, the utilization ratios of carbon sources by drab soil microbe had a little difference.
潮土各处理之间，微生物对碳源的利用率差异较小。
According to the character of configuration and microconfiguration, the paleosols may be divided into the brown earth, carbonate drab soil, drab soil and leached drab soil.
其地球化学特征和土壤磁学特性的研究表明，各古土壤类型之间和各发生层之间存在着显著差异。
To the ratios of microbial biomass carbon to microbial biomass nitrogen, the black soil and drab soil were higher than red soil.
各处理间微生物商、微生物量氮占全氮的比例和微生物量碳氮比之间的差异较小。