The biomass of soil total microorganism, bacteria, fungi, gram-negative bacteria, gram-positive bacteria, actinomycetes, AMF (arbuscular mycorrhizal fungi), and protozoa, the ratio of bacteria biomass to fungi biomass, the ratio of gram-positive bacteria to gram-negative bacteria under two earthworm species (<i>Eisenia fetida</i>, <i>Metaphire guillelmi</i>), and the different density of <i>Eisenia fetida</i> and <i>Metaphire guillelmi</i> treatments.

The biomass of soil total microorganism, bacteria, fungi, gram-negative bacteria, gram-positive bacteria, actinomycetes, AMF (arbuscular mycorrhizal fungi), and protozoa, the ratio of bacteria biomass to fungi biomass, the ratio of gram-positive bacteria to gram-negative bacteria under two earthworm species (Eisenia fetida, Metaphire guillelmi), and the different density of Eisenia fetida and Metaphire guillelmi treatments.