Potassium Application in fruits

Role of humic acid in agriculture

Improved soil

Humic acid has a hydrophilic colloid that absorbs a lot of water, so it is very good in improving the moisturizing of the soil.

In addition, humic acid can act as a penetrant for the soil, reducing the evaporation of soil moisture and providing more effective moisture to the soil.

The ability of ore source humic acid to maintain salt ion nutrients is much larger than other mineral colloids, even dozens of times and tens of thousands of times. Therefore, for soils with weak fertility, by increasing the free radicals of humic acid, not only can the nutrient mass fraction in the soil be increased, but also the physical properties of the soil can be improved. It is also called the improved pellet structure of the soil, thereby improving its ability to retain fertilizer.

Ability to adjust acid and alkali

Many ordinary people, including some agricultural resources friends, think that it is basically impossible to adjust the acid and alkali by the source of humic acid. Everyone thinks that the acid and alkali are to be realized by its pH value.

However, in fact, humic acid is a polyacid functional group weak acid, which has a strong ability to buffer acid-base changes. In this process, it can form an acid-base buffer to adjust the acid and alkali. Instead of adjusting it by its ph value.

Improve the physical properties of the soil

Humic acid is mainly coated in the form of a film on the surface of the mineral soil. Because of its colloidal nature, the cohesive force and adhesion are larger than the sand particles. After application to the soil, the viscosity of the sand particles can be increased, which is effective. Promote the formation of agglomerate structure.

The humic acid is soft, flocculent and porous. The cohesive force is nearly 10 times smaller than the cosmid, and the adhesion is less than half of the cosmid. Therefore, after the cosmid is coated, it is easy to form scattered agglomerates, making the soil looser and more No longer form a hard block.

Humic acid can make the sand tight, the clay becomes loose, and the soil retains water, water and gas permeability, which is more suitable for agricultural farming. It has a certain influence on the thermal condition of the soil, mainly because humus is a dark substance, and its presence can significantly deepen the color of the soil, thereby regulating the heat absorption of the soil.

At the same time, the heat capacity of humus is larger than that of air and minerals, but it is smaller than water and the thermal conductivity is middle. Therefore, under the same sunshine conditions, the soil with high humus mass fraction has relatively high soil temperature, and the change range is not large, which is conducive to low-temperature sowing crops. Better growth.

In recent years, every year after the end of the year, there will be a cold spring, which will have a certain impact on greenhouse crops, including wheat on land, which is called freezing damage. Humic acid has the effect of enhancing soil heat at this time, and the mass fraction of humic acid is relatively high. Therefore, it is more conducive to use at low temperature sowing, and can have the effect of improving ground temperature and protecting crop roots.

Adsorbs heavy metals in the soil and reduces the damage of heavy metals to crops and soil
Previously, some of the product quality requirements we used were relatively weak, and because we used too much agricultural products, so in the process, a part of the heavy metals will be added to the soil, plus the environmental pollution in recent years. It also increases the heavy metals in the soil, and the source humic acid has a solidifying effect on heavy metals, which can reduce the damage of heavy metals to crops and soil.

Promote soil microbial activity

The energy and nutrients required for the life activities of soil microorganisms are directly or indirectly derived from soil organic matter. While humus plays a major role in soil organic matter, the main component of humus is humic acid. Therefore, humic acid can regulate the beneficial changes of soil physical structure by regulating the acid-base reaction of soil, providing protection for microbial life activities and promoting soil. Microbial activity increases the amount of beneficial microorganisms in the soil and enhances the activity of soil enzymes.

In a simple sentence, humic acid promotes the growth of microorganisms and better decomposes humic acid.
In the past two years, some enterprises have been enzymatically hydrolyzing humic acid, which is actually used to make use of its mutual interaction. Humic acid and biological bacteria have a mutually reinforcing effect. Synergistic fertilizer

Reduce the volatilization of nitrogen fertilizer and promote nitrogen absorption
There are many compound fertilizers, ureas, etc. on the market, such as humic acid coating or humic acid enzyme. The addition of humic acid to urea can form a urea complex, which slows the decomposition of urea, prolongs the fertilizer efficiency, reduces the loss, and increases the utilization rate of urea by 30% and the aftereffect by more than 15%.

Synergistic fertilizer

(1) The effect of humic acid combined with nitrogen on plant growth and development is very obvious. When nitrogen and fulvic acid are sufficient, plants can synthesize more protein, promote cell division and growth, so the plant leaf area grows faster, and more leaf area can be used for photosynthesis.
(2) Synergism effect on phosphate fertilizer
Humic acid can inhibit the fixation of water-soluble phosphorus in soil, convert invalid phosphorus into effective phosphorus, increase the distance of phosphorus in soil, stimulate root development and promote the absorption of phosphorus by roots.
(3) Synergism effect on potassium fertilizer
The functional group of humic acid absorbs and stores potassium ions and reduces the amount of potassium lost in the soil with water. Humic acid prevents the fixation of potassium in sticky soils and increases the amount of exchangeable potassium.
Humic acid has a dissolution effect on potassium-containing minerals, slowly increasing the release of potassium and increasing the content of available potassium in soil.
At the same time, humic acid can also use its biological activity to stimulate and regulate the physiological metabolic process of crops, and increase the potassium absorption by more than 30%.
In addition, the combination of humic acid and potassium can promote photosynthesis, significantly increase the absorption and utilization of nitrogen by plants, and quickly convert to protein.
(4) Promote the absorption of micro-fertilizer and effectively solve the deficiency syndrome
Trace elements are the constituents of various enzymes in crops, which have important effects on promoting normal growth and development of crops, improving disease resistance, increasing yield and improving quality, and can fully increase the characteristics of nitrogen fertilizer and micro-fertilizer absorption.

Stimulating growth

(1) Promoting roots
After applying humic acid, the root system can be developed on the crop, the root coefficient and length are increased, and the secondary roots are obviously increased. You can check it online, or you can see it based on some experience in our use. .
(2) Enhance photosynthesis
It can promote the formation of chlorophyll, improve photosynthetic efficiency and accumulation of organic matter, and improve the ability of crops to resist disease, insects and drought.
The structure of salicylic acid and phenol in humic acid itself is an antibacterial agent structure. The application of humic acid improves the metabolism of plants, and increases the activity of certain cell protective enzymes (POD, IAA) and body immunity.
Ore source humic acid has significant inhibitory effects on pepper anthracnose, potato late blight, sweet potato root rot, cucumber downy mildew, apple tree rot, and cotton verticillium. Everyone must remember that it is the source of humic acid.

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