humus
n. rich, dark organic material formed by decay of vegetable matter, essential to soil's fertility.
Sentences
The soil was good for planting crops because of the large amount of humus it contained.
One of the benefits of starting a compost pile is the rich humus it creates.
Synonyms
fertilizer
compost
soil
Antonyms
sand
rocks
Rich Black Humus - Life Within the Soil