As nouns the difference between humus and microorganisms
is that humus is a large group of natural organic compounds, found in the soil, formed from the chemical and biological decomposition of plant and animal residues and from the synthetic activity of microorganisms while microorganisms is plural of microorganism.
humus
English
Etymology 1
.
Noun
(-)
A large group of natural organic compounds, found in the soil, formed from the chemical and biological decomposition of plant and animal residues and from the synthetic activity of microorganisms
See also
* compost
* mulch
Etymology 2
.
Noun
(-)
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