Humic acid is a macromolecular organic substance widely found in nature. It is widely used in agriculture, forestry, animal husbandry, petroleum, chemical, building materials, medical and health, environmental protection and other fields. In particular, it now advocates the construction of ecological agriculture, pollution-free agricultural production, green food, pollution-free environmental protection, etc.and makes “humic acid” highly respected. It turns out that human life and survival are inseparable from humic acid.

Humic acid is a plant and animal remains, mainly plant remains, a type of organic matter produced and accumulated by microbial decomposition and transformation, and a series of geochemical processes. Its total amount is astonishingly large, counting trillions of tons. Rivers, lakes and seas, soil coal mines, most of them have traces on the surface.

Because of its wide existence, it has a great impact on the earth, involving carbon cycle, mineral migration accumulation, soil fertility, and ecological balance. The total amount of humic acid contained in the soil is the largest, but the content in the soil is less than one percent on average, and the total amount contained in the brackish water is not small, but the concentration is lower.

Humus can be divided into three main parts in soil and sediment: Humic acid (HA), fulvic acid (FA) and humin (HM). Among them, HA is soluble in alkali, but insoluble in water and acid; FA is soluble in alkali and soluble in water and acid; while HM is soluble in dilute alkali, insoluble in water and acid.

It can be separated from the metal ions in the water, which is beneficial to the transfer of nutrients to the crops, and can improve the soil structure and facilitate the growth of crops.

It has the functions of exchange, adsorption, complexation and chelation with metal ions; it acts as a polyelectrolyte in the dispersion system, and has the functions of coagulation, peptization and dispersion. There are also a certain number of free radicals on the humic acid molecule, which are physiologically active.

Humus can be regarded as the essence of soil organic matter. Humic acid is the most biochemically active and most valuable part of humic substances*. In the past, scientists have chemically refined humic acid from soil or plants in the laboratory, which is not only small but also expensive.

The technique of extracting and dissolving humic acid from peat or humus-containing ore has been developed so that humic acid can be used in large quantities in agriculture and humic acid is an emerging soil conditioner.

Humic acid is a plant and animal remains, mainly plant remains, a type of organic matter produced and accumulated by microbial decomposition and transformation, and a series of geochemical processes. Its total amount is astonishingly large, counting trillions of tons. Rivers, lakes and seas, soil coal mines, most of them have traces on the surface.

Because of its wide existence, it has a great impact on the earth, involving carbon cycle, mineral migration accumulation, soil fertility, and ecological balance. The total amount of humic acid contained in the soil is the largest, but the content in the soil is less than one percent on average, and the total amount contained in the brackish water is not small, but the concentration is lower.

Humic acid is a bioactive organism. An organic carrier composed of a plurality of functional groups is also an intermediate substance having a metabolic function of plant respiration and photosynthesis, so that it has a large capacity and can be combined with various substances. Humic acid and pesticides are mainly combined by means of ionic bond, hydrogen bond, proton transfer, electron transfer, complexation, etc., and a new type of pesticide polymer complex is produced.

This is humic acid environmental protection pesticide. Research and practice have shown that humic acid can be combined with insecticides, fungicides and herbicides to enhance the efficacy and reduce toxicity.

Organic matter, humic substance, humic acid, humate and fulvic acid are closely related, all are come from the natural process of decaying plants and animals body. Organic matter is defined that all the organic substance in the soil with Hydrocarbonated base(containing hydrogen, carbon and oxygen). Humic substance is pure substance from process of humification with stronger Cation Exchange Capacity than clay. Humic acids is the fraction of humic substance that is not soluble in acidic condition and soluble in higher PH solution with high molecular weight. Humate is humic acid salt is completely soluble in water extracted from humic acid after treating with high PH alkaline agentlike NAOH, KOH. Fulvic acid is defined as lower molecular weight soluble in both acidic and alkaline condition.