The comprehensive effect of various functions of humic acid

1. Humic acid is an organic colloid material with water absorption and storage functions. Humic acid has a large cation exchange capacity, strong adsorption buffering and chelating ability, and can improve nutrient utilization efficiency in soil, buffer acid and alkali hazards, and other effects. Humic acid is an organic macromolecular colloid with strong water absorption and storage functions. The water absorption rate of clay particles is generally 50% -60%, while the water absorption rate of humic acid substances can reach 500% -600%. Therefore, the use of humic acid fertilizers is beneficial for improving soil moisture conditions.

2. Humic acid can improve soil structure

The organic inorganic complex determines soil fertility. Inorganic mineral colloids generally have a content of over 95% in the soil, which has a certain impact on soil basic fertilizers and cannot be changed through manual measures. Organic colloids, also known as humic acids, generally only account for about 5% of the organic inorganic complex, but they play an equally important role as mineral colloids and can be regulated and applied with artificial measures, The use of humic acid soil amendments and soil improvement fertilizers can increase the content of humic acid in the soil, and the application of humic acid becomes a binder for the formation of soil aggregate structure, which increases the organic inorganic composite degree of the soil, increases the large particle size water stable aggregates of the soil, and improves the soil structure. Therefore, the application of humic acid fertilizers can effectively improve the physical structure of various soils, People call humic acid a high-quality soil conditioner.

3. Spraying humic acid liquid fertilizer on the leaves can reduce stomatal conductance, reduce water transpiration and loss. According to the experiment, spraying fulvic acid on wheat resulted in a 33.7% decrease in leaf stomatal conductance compared to the control. According to a study by Henan Academy of Agricultural Sciences, spraying fulvic acid on wheat not only reduces leaf stomatal conductance, but also reduces stomatal opening and closure, while also providing nutrients for wheat.

4. Humic acid can stimulate the growth of crop roots and enhance their water absorption capacity.

Humic acid contains various functional groups with chemical and biological activity, which have the effect of stimulating crop growth and development. It can cause early germination, early emergence, early flowering, and early fruiting of seeds. At the same time, it can increase root length, root quantity, and root vitality, and enhance the ability of crop roots to absorb nutrients and water.

5. Humic acid can enhance the physiological regulation function of plants and improve their cold resistance.

Applying humic acid fertilizers can enhance the activity of enzymes in soil and plant bodies, regulate crop physiological metabolism, and enhance crop adaptability to adverse environmental conditions.

In summary, humic acid and humic acid fertilizers can improve soil structure, improve soil physical and chemical properties, enhance soil water and fertilizer retention capacity, stimulate crop root growth and development, improve water absorption capacity, reduce leaf water transpiration and loss, enhance crop resistance to adverse environments, and improve water and nutrient utilization efficiency.

What is humic acid organic fertilizer: Using raw materials such as lignite and oil shale, using different production methods to produce products containing a large amount of humic acid, oxygen, phosphorus, potassium, and certain trace elements required for crop growth and development, it is called humic acid organic fertilizer.

What is the difference between humic acid organic fertilizer and farmhouse fertilizer: farmhouse fertilizer needs to be fully matured before it can be applied to the soil, and it needs to be transformed for a long time before it can be absorbed by humic acid crops. However, humic acid organic fertilizer provides necessary nutrients directly to crops, making it easier to absorb, more efficient to use, and more effective than farmhouse fertilizer.