Decomposed organic matter. It consists of numerous breakdown substances from plants including SUGARS; AMINO ACIDS; LIGNIN; FATS; and HUMIC SUBSTANCES.

Decomposing SPHAGNUM.

The unconsolidated mineral or organic matter on the surface of the earth that serves as a natural medium for the growth of land plants.

Synonyms: 0, Soils, Humus, Soil, Peat