The role of humic acid in plant growth is not only to change its physiological characteristics and external morphology, but also to improve plant stress resistance by regulating the plant growth environment. Let us take a look at the details of role of humic acid in plant growth physiology.
1.Role of Humic Acid ro Strengthen breathing
Some people call humic acid a “breathing fertilizer.” It is generally considered that, because of its structure containing phenol and hydrazine in its molecule, it can be a carrier of hydrogen and an activator of oxygen. Form a redox system that can deliver electrons and promote respiration.
2. Promote the absorption and transportation of mineral elements
Humic acid can form complexes or chelate complexes with polyvalent metal ions through the oxygen-containing functional groups on its molecular side chain. This form can activate various metal elements in the soil, especially trace elements, so that they can The unutilized state becomes available. Therefore, it is easily absorbed and transported by plants.
3. Role of Humic Acid in Plant to increase the chlorophyll content in leaves
This is a very intuitive effect, and all crops that are made with decay can clearly see that the crop is greener. Due to the increase in chlorophyll, it naturally increases the photosynthesis of plants and can synthesize more carbohydrates.
4. Role of Humic Acid in Plant to Regulate water metabolism.
The most obvious is that the pores on the leaves become smaller after application of fulvic acid, which reduces water transpiration and has drought resistance.
5.Role of Humic Acid in Plant to promote the metabolism of sugars, nucleic acids and proteins.
Application of humic acid can improve crop quality. There are many reports such as tobacco leaves, vegetables and fruits.
6. It has the function of growth regulation or similar plant hormones, and the most obvious is to promote rooting, green preservation, anti-aging and so on.
These physiological effects of humic acid indicate that, as a kind of substance, it can effectively regulate the physiological metabolism and growth of plants, and provide a biological basis for promoting high yield of crops.