1. The sources of humic acid can be divided into two categories: one is natural humic acid: the other is artificial humic acid.
Natural humic acid
The humic acid formed by the decomposition and transformation of organic matter by microorganisms under natural conditions is collectively called natural humic acid. Natural humic acid mainly includes soil humic acid, water humic acid and mineral humic acid. Humic acid in soil and water is mainly formed by the biochemical decomposition of organic matter by aerobic microorganisms, while mineral humic acid is mainly It is formed by the action of anaerobic microorganisms over thousands to tens of thousands of years.
Artificial humic acid
With the development of science and technology, the production of artificial humic acid is increasing. Artificial humic acid raw materials come from a wide range of sources. They are usually made from various organic wastes from industrial production such as crop straws, livestock manure, and food processing waste liquids, and are produced through controllable microbial fermentation and physical and chemical reactions.
2. What is humic acid: Structure of humic acid
Humic acid is a kind of organic polymer weak acid, which is composed of carbon, hydrogen, oxygen, nitrogen, sulfur and other elements. It has an aromatic core as the center, has an aliphatic cyclic structure, and is connected with a variety of functional groups; mainly oxygen-containing The acidic functional groups include carboxyl groups on aromatic and aliphatic compounds and phenolic hydroxyl groups on aromatic rings, as well as carboxyl groups, carbonyl groups, alcoholic hydroxyl groups, methoxy groups, quinone groups and other functional groups.
Humic acid itself is a hydrophilic colloid, a mixture of negatively charged polymers. The structural composition of humic acid determines that it has weak acidity, hydrophilicity, colloidal properties, adsorption properties, ion exchange properties, complexing properties, redox and physiological activities, etc., and can interact with many organic and inorganic substances.
Humic acid is naturally green and has various effects. It can improve soil and increase crop yield and quality. In today’s era of increasing emphasis on food safety and green environmental protection, I believe it will become the leading product in the direction of agricultural development.