Everyone should have heard of humic acid, and there are some humic acid fertilizers on the market. As we all know, as long as the effect of adding humic acid to fertilizers is better than ordinary fertilizers, then what is humic acid??What is the role of humic acid in fruit tree cultivation? Regarding these two questions, we will start to discuss the main part today.

What is humic acid?

Furthermore,Since its discovery by the Germans in 1786, there have been more than 220 years of research on humic acid.

The prepared humic acid is brown-black, loose powder, easily soluble in strong alkali and other polar organic solvents containing nitrogen. Organic matter is widely distributed in soil.In natural environments such as coal, water, etc. The polymer described in the present invention is a kind of polymer which is composed of carbon, hydrogen, oxygen, nitrogen, phosphorus, sulfur and other elements, and is decomposed and synthesized by microbial action and geochemical action. It is a natural organic macromolecular polymer whose main component is carbon.

Humic acid can promote the growth and reproduction of beneficial soil microorganisms. Secondly, humic acid has the functions of absorption, water storage, absorption, storage, etc., as well as organic colloidal substances such as humic acid adsorption and water storage. It can increase the retention capacity of soil moisture. It The agricultural function is mainly reflected in: the agriculturalFive major functions" (improving soil, increasing fat, increasing fat, increasing fat).

The above is the introduction of humic acid, what is the important role of humic acid fertilizer in fruit production?

At present, the most commonly used fertilizers on the market are solid fertilizers and liquid fertilizers.

Studies have found that if properly managed, the rational use of humic acid fertilizers can increase fruit tree yields.15-30 percent, and can improve fruit quality. Using humic acid as fruit tree fertilizer has the following advantages;

1.Improve soil microbial activity in orchards.

Improve the main energy source of orchard soil microbial activity, improve soil microbial community, and promote the growth and reproduction of beneficial bacteria. The reproduction of bacteria ensures the healthy growth of fruit tree roots and can reduce root diseases.

2. Increase orchard soil nutrients.

Humic acid by adsorption. Complexation. Chelation. Ion exchange or indirectly activate or inhibit soil enzymes, so that humic acid is enriched in the soil, while protecting the stored nutrients. The formation of slow-acting nitrogen sources. The fixation of nitrogen in the atmosphere promotes difficult It is very important to reduce the loss of various nutrient elements in the orchard soil. On the whole, it can improve the utilization rate of soil nutrients and reduce the loss of nutrients.

3. Improve the soil structure of the orchard and increase the soil water content;

the result shows,Humic acid fertilizerIt is a humus, an organic colloidal substance with the functions of water absorption and water storage, which can affect the properties of the orchard soil and make the orchard soil form a relatively stable aggregate structure.0.25 mm of soil can increase soil moisture content by 10-20 percent and organic matter content by 10 percent, maintain soil moisture, increase ventilation, and benefit the growth of fruit trees.

Regarding the water storage effect of humic acid: Since humic acid is a hydrophilic colloid, it has a strong water absorption capacity, and the large water absorption rate can reachMore than 500 percent, the water absorbed in the saturated atmosphere can reach more than double its own weight. Compared with ordinary mineral glue, the mineral humic acid is much larger, which inhibits the transpiration of crops and reduces the soil water content. Increased soil moisture content.

4.Improve fruit tree fertilizer utilization.

(1) Humic acid can adsorb nitrogen in orchard soil, reduce its volatilization loss, and improve fruit utilization. It also has the effect of inhibiting nitrification and prolonging plant utilization.

(2) Humic acid can inhibit the fixation of phosphorus in the soil, prolong the migration distance of phosphorus in the soil, delay the conversion of effective phosphorus or ineffective phosphorus, improve the utilization rate and fertilizer efficiency of phosphorus fertilizer, increase the amount of phosphorus absorbed by crops, and reduce the amount of phosphorus in the soil. Phosphorus solubilization produces solubilization.

(3) Most of the potassium applied in the soil exists in the form of potassium salt, which cannot be directly absorbed by fruit trees, which can reduce the fixation of potassium in the soil, improve the ability of plants to absorb potassium, and activate the potential potassium in the soil.

(4) More importantly, humic acid can form complexes or chelates with trace elements, adjust the ratio of various elements and trace elements, and enhance the synthesis of enzymes on sugar, starch, protein and various vitamins. , convert polysaccharides into soluble simple sugars, promote the accumulation of starch and protein synthesis, increase the fruit size, and increase the sugar content.

5.Corruption promotes fruit trees.

Humic acid fertilizerDue to its own redox effect, it enhances the root respiration ability, thereby providing life vitality to the root system. In addition, humic acid contains a variety of active genes, which can improve the activities of catalase and polyphenol oxidase in fruit trees and stimulate plants. The physiological metabolism of saplings promotes rapid rooting of young trees, developed root systems, thick stems, lush branches and leaves, strong photosynthetic capacity, and accelerates the migration and absorption of nutrients. In addition, humic acid can also reduce the opening of leaf stomata and reduce the amount of water in leaves. Evaporate, regulate water, improve the water status of plants, and ensure normal growth of fruit trees in arid environment.