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Soil remediation: how to correctly understand the role of humic acid and fulvic acid

source: time: 2021-03-23

 The role of humic acid and fulvic acid:

 

The functional groups in humic acid (mainly carboxyl groups and phenolic hydroxyl groups) can give active hydrogen ions, so humic acid exhibits weak acidity and chemical reactivity, and has strong ion exchange capacity and complex (chelating) cooperation. The quinone, carboxyl and phenolic hydroxyl structures of humic acid make it biologically active. The "five functions" of humic acid in agriculture (improving soil, increasing fertilizer efficiency, stimulating growth, enhancing stress resistance and improving quality) have been guiding the application and progress of humic acid in the field of agriculture.

 

Fulvic acid is a humic acid product with a wide range of applications and high economic benefits. So far, it still has a large market and competitive advantage in plant growth agents, anti-stress agents, fluid fertilizers, pharmaceutical preparations, and cosmetics. The "four-agent function" of fulvic acid in agriculture (drought-resistant agent, growth regulator, pesticide slow-release synergist and chemical element complexing agent) is a classic, and it is unique as a drought-resistant agent.

 

Development of new materials related to humic acid and fulvic acid:

To

Humic acid has great potential for the development of new materials because of its green, environmental and organic characteristics. For fertilizers, humic acid can be composite materials (large, medium and small molecules), functional materials (nitrogen extraction, live phosphorus, potassium promotion), and stress-resistant materials (such as plant drought resistance, cold resistance, waterlogging resistance, disease and insect pest resistance), it can be a chelating material, it can be a special material, and so on.

To

Fulvic acid is the water-soluble part of humic acid. Due to its small molecular weight, there are many acidic groups, good solubility, and wide application. For fertilizers, fulvic acid can be refined materials (such as small molecules, high activity, high content), can be stress-resistant materials (such as plant drought resistance, cold resistance, waterlogging resistance, disease and pest resistance, etc.), and can be a chelating material can be a special material or the like.


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