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Humic Substances

Organic matter in a state of advanced decay, after passing through the stages of COMPOST and PEAT and before becoming lignite (COAL). It is composed of a heterogenous mixture of compounds including phenolic radicals and acids that polymerize and are not easily separated nor analyzed. (E.A. Ghabbour and G. Davies, eds. Humic Substances, 2001).

Year introduced: 2005(1963)

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Subheadings:

Tree Number(s): D02.241.444, D02.455.426.559.389.657.377, D20.721.500

MeSH Unique ID: D006812

Entry Terms:

  • Substances, Humic
  • Humic Substance
  • Substance, Humic
  • Humic Acids
  • Acids, Humic
  • Humic Acid
  • Acid, Humic
  • Sodium Huminate
  • Huminate, Sodium

Pharmacologic Action:

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