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Humic Acid And Medium Trace Element
Apr 18, 2018

The amount of trace elements we supplement through fertilization is limited. According to research studies, there are more than 70 trace elements in the soil. In particular, with the destruction of soil ecology in recent years, soil acidification, salinization, and heavy metal pollution have become increasingly serious. The availability of trace elements in the soil has decreased, and the sub-health of crops caused by nutrient deficiency has been triggered more. Therefore, to restore soil ecology, it is particularly important to improve the utilization of trace elements.

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First, we need to restore the absorption of trace elements in original plants. Under the natural state, the organic matter, such as the deciduous leaves of plants and the faeces of animals, is gradually converted into organic matter, humus, humic acid, especially humic acid with the elements such as phosphorus, potassium, iron and calcium, to form soluble humic acid salts or humic acid complex molecular structures, which are absorbed and utilized by crops. In this process, soil microorganisms play a very important role in the decomposition of organic matter, providing nitrogen, phosphorus and other mineral elements for plants and organic acids, amino acids, vitamins, auxin and other organic nutrients. The nutrients and energy required for soil microbial life activities are derived from organic substances such as carbon, nitrogen, inorganic salts and plant roots secreted by soil humic acid. Thus it can be seen that humic acid is an important link between soil, plant and microorganism for exchanging nutrients and energy materials. Therefore, when the soil organic matter is high, the soil microorganism is active, the soil fertility is also higher, and the contribution rate of the soil fertility is also higher.


Humic acid has strong adsorption capacity and ion exchange capacity to surrounding molecules or ions, and plays an important role in synergistic fertilizers and activating the nutrients that are utilized in the soil. Humic acid can form a soluble complex with mineral elements in the soil, and promote the less active Fe, B, Zn, etc, from the roots to other leaves. It has an important effect on improving the mineral nutrition of crops, regulating the balance of a large number of elements and trace elements, and improving the yield and quality of agricultural products.


The interpretation of the chelating effect of humic acid with the medium and trace elements and the ecological function makes us combine the concept of "exogenous supply"of the pure medium and trace elements, and the "endogenous supply" of the activation of soil mineral nutrients to make our soil& crops healthier, and food safer.