Humic acid is a kind of natural organic acid macromolecule with biological activity, its biological activity is reflected in the physiological benefits of humic acid for plants, the author will explain the benefits of physiological humic acid for plants as below.
Physiological benefits of humic acid for plants
The physiological benefits of humic acid for plants are summarized by the following six aspects:
(1)Enhance the respiration effect
Some people call humic acid “breathing fertilizer.” It is generally believed that because humic acid molecules contain phenol and quinone structures that can transform into each other. It can be both a carrier of hydrogen and an activator of oxygen to form a redox system that can transfer electrons and promote respiration.
(2)Promote the absorption and transportation of mineral elements
Humic acid can form complexes or chelates through its molecular side chain and the oxygen-containing functional group. In this form it can activate various metal elements in the soil, especially trace elements. so that they become ueseful form unuseful, and can easily be absorbed and transported by plants.
(3)Increase the chlorophyll content in the leaves
This is a very intuitive effect, Any crop use humic acid becomes more green obviously. Since the increase of chlorophyll naturally improves photosynthesis in plants, synthesize more carbohydrates.
(4)Regulating the water metabolism
The most obvious is that the pores on the leaves after the application of fulvic acid become smaller, reduce water transpiration. It has a drought-resistant effect.
(5)Promote sugars, nucleic acids, and protein metabolism
Application of humic acid can improve the crop quality. Such as tobacco leaves, vegetables, fruits and so on have many reports been feedback .
It has the role of growth regulation or similar plant hormones, and the most obvious thing is to promote root, green protection, prevent aging and other functions.
(6)It has the role of growth regulation or similar plant hormones, and the most obvious thing is to promote root, green protection, prevent aging and other functions.
The above summarizes the physiological benefits of humic acid on plants. These effects of humic acid show that it can effectively regulate plant physiological metabolism and growth and development, providing a biological basis for promoting crop yield.
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