Humic acid supplements soil organic matter, deformed soil

Humic acid importance for soil

Humic acid is widely found in soils, lakes, rivers, oceans, and lignite, weathered coal, and peat. Humic acid is soil, she comes from the soil and goes to the soil.

Humic acid is the best choice for supplementing soil organic matter

On May 28, 2016, the State Council issued the Action Plan for Soil Pollution Prevention and Control, referred to as “Ten Articles”. To ensure the harmony of the soil ecosystem, it is necessary to put the soil into the customs; a red line must be drawn, and the original source can be placed, and the material that increases the soil burden and brings new pollution cannot be placed.

Humic acid is a component of soil. The industrially extracted coal humic acid is similar to the process of soil humic acid formation. It has similar physical properties, chemical composition, molecular structure and molecular weight range. It is the intrinsic substance of soil and is the supplement of soil organic matter. inevitable choice.

Humic acid is an inevitable choice for optimizing soil ecological environment

Humic acid has colloidal chemical properties and is a natural cementing agent for forming agglomerate structures. It promotes the formation of larger particle size agglomerates and microaggregates in the soil and improves the physical properties of the soil. The agglomerates formed by humic acid, pores The increase in degree improves the aeration of the soil; the colloidal nature of humic acid, which in turn forms agglomerate structure, enhances the water retention capacity of the soil and increases the water holding capacity.

Humic acid is the carrier of soil life. It provides carbon sources and nitrogen sources for microbes and promotes them for life. It promotes the quantity, variety and diversity of microorganisms. Microorganisms are the embodiment of soil life and act as decomposers. It is indispensable for the formation and decomposition of humic acid. The formation of humic acid is inseparable from soil microbes. The survival and reproduction of soil microbes cannot be separated from humic acid. The two are interdependent and promote the formation and development of soil, fertility evolution, material circulation and energy conversion. It can be seen that the “soil-humic acid-microorganism” is inseparable and belongs to the community of life.

Humic acid has abundant functional groups (aromatic ring, conjugated double bond, phenolic hydroxyl group, hydroxyl group, carbonyl group, carboxyl group, etc.), and can be adsorbed by hydrophobic adsorption, distribution, hydrogen bonding, charge transfer, covalent bond, van der Waals force, etc. Effectively react with heavy metals or organic pollutants, such as adsorption, chelating, redox and other reactions, to repair heavy metal contaminated soil, and fully utilize the characteristics of humic acid to “improve soil” and “purify soil” and change the soil. Ecological effects such as adsorption-desorption, migration-transformation of organic pollutants. For decades, humic acid has been combined with physical, chemical and biological methods to carry out a large number of experiments, demonstrations and promotion of soil remediation, and achieved good results.

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