The difference between Compost and Humus

When used as nouns, compost means the decayed remains of organic matter that has rotted into a natural fertilizer, whereas humus means 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.


Compost is also verb with the meaning: to produce compost, let organic matter decay into fertilizer.

check bellow for the other definitions of Compost and Humus

  1. Compost as a noun:

    The decayed remains of organic matter that has rotted into a natural fertilizer.

    Examples:

    "Dig plenty of compost into clay or sandy soil to improve its structure."

  2. Compost as a noun (obsolete):

    A mixture; a compound.

  1. Compost as a verb:

    To produce compost, let organic matter decay into fertilizer.

    Examples:

    "If you compost your grass clippings, you can improve your soil."

  1. Humus as a 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

  1. Humus as a noun:

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