In this paper the formation of soil humus was studied by applying plant remnant with different C/N to sterilized soil and inoculating bacteria fungi and actinomyces.

• 将不同C／N比的植物秸秆加入灭菌后的土壤中，接种培养细菌、真菌和放线菌的纯菌株，探讨其对土壤腐殖质形成的作用。