Humus
Humus is the organic matter above the topsoil and below leaf litter which is finely divided having a high surface area. It is derived from decomposition of plant and animal substances.
Humus is the organic matter above the topsoil and below leaf litter which is finely divided having a high surface area. It is derived from decomposition of plant and animal substances.
Humus is the organic matter above the topsoil and below leaf litter which is finely divided having a high surface area. It is derived from decomposition of plant and animal substances.
Source: Wikipedia "Humus" · CC BY-SA 4.0
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