What are the classifications and functions of humic acid?
Published Time:
2025-01-03
In addition to organic residues, further decomposition products, and microbial resynthesis products
Classification of Humic Acid
According to the source, humic acid can be divided into two categories: natural humic acid and artificial humic acid. Among natural humic acids, they are further divided into soil humic acid, coal humic acid, aquatic humic acid, and fungal humic acid according to their existence.
According to solubility and color in solvents: humic acid can be divided into yellow humic acid, brown humic acid, and black humic acid. In earlier literature, there are also names such as gray humic acid, brown humic acid, and green humic acid, which are actually separated by different solvents.
According to the generation method: humic acid can be divided into primary humic acid and regenerated humic acid (including humic acid in naturally weathered coal and artificially oxidized coal).
According to the degree of humification of humic acid (such as the absorption coefficient): it is divided into A type, B type (true humic acid), RP type, and P type (immature humic acid), etc.
According to the natural combined state: it can be divided into free humic acid and (calcium, magnesium) bound humic acid.
Functions of Humic Acid
Soil organic matter is mainly divided into two categories: one is fresh and incompletely decomposed plant and animal residues; the other is humus.
In addition to organic residues, further decomposition products, and microbial resynthesis products, the main component of humus is humic acid. Coal humic acid contained in peat, lignite, and weathered coal has similar structure, properties, and effects on soil and crops to soil humic acid. Using abundant coal humic acid and its series of products as fertilizers can supplement soil humic acid.
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What are the classifications and functions of humic acid?
In addition to organic residues, further decomposition products, and microbial resynthesis products
What is the concept of humic acid?
Humic acid is a mixture of natural organic macromolecular compounds. It is widely found in nature
What are the differences between humic acid, fulvic acid, potassium fulvate, and humic acid?
Humic acid and humic acid are the same thing; the two names refer to the same substance. Humic acid generally refers to humic acid, so there is no difference between them; they mean the same thing.
