Biological Stimulation By Humic Acid Fertilizers (2)

- Dec 25, 2018 -

Classification of humic acid fertilizers Ⅰ


Humic acid fertilizers can be divided into natural humic acid and artificial humic acid according to their sources. Among the natural humic acid, they can be divided into soil humic acid (white) phytic acid, coal humic acid, water humic acid, mold humic acid, etc.

feitilizer

Humic acid fertilizer can be divided into primary humic acid and regenerative humic acid (including humic acid in natural weathered coal and artificial oxidized coal) according to the production mode.

plant nutrition

Humic acid fertilizers can be divided into yellow humic acid, brown humic acid and black humic acid according to their solubility and color in solvents. There are names of grey humic acid, brown humic acid and green humic acid in previous literature, which are actually separated from different solvents.



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