Assertion: soil organism | /r/CapableOf | play vital role
Facets:
value: in woodlands
type: LOCATION
value: in the creation of humus
type: TEMPORAL
Source sentences:
text: Though soil organisms have become less important in agriculture due to the development of synthetic fertilizers, they play a vital role in woodlands, especially in the creation of humus, a finely separated complex of organic materials composed of decaying leaves and other vegetable matter.