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Humic acid is a principal component of humic substances, which are the major organic constituents of soil (humus), peat, coal, many upland streams, dystrophic lakes, and ocean water. It is…

Oxygen-containing functional groups of the main oxygen-containing functional groups of humic acid is a carbonyl group, a phenolic hydroxyl group, alcoholic hydroxyl group, a carboxyl group, an alkoxy group, quinone…

What is Humus or Humic Acid? The term “humus” dates back to the time of the Romans, when it was frequently used to designate the soil as a whole. It…