Five Comprehensive Functions of Fulvic Acid
- Fulvic acid is an organic colloidal substance with the function of water absorption and storage.
The cation exchange capacity of fulvic acid is large, and it has strong adsorption and chelating ability, which can improve nutrient utilization rate of soil and buffer acid and base harm.
Fulvic acid is an organic macromolecular gel, which has a strong function of water absorption and storage. The water absorption rate of clay particles is generally 50%~60%, while the water absorption rate of fulvic acid substances can reach 500%~600%. Therefore, the use of fulvic acid fertilizer is conducive to improving the soil moisture status.
- Fulvic acid can improve soil structure.
Organic and inorganic complexes determine soil fertility, and inorganic mineral colloids generally contain more than 95% in the soil. The inorganic mineral colloid has certain influence on soil base fertilizer, which cannot be changed by artificial measures. Organic colloid is fulvic acid substances, generally only account for about 5% of the organic and inorganic complex, but they play an equally important role with mineral colloids, and can be controlled by artificial measures. For example, apply organic fertilizers, using humic acid soil improvers and soil improvement fertilizers to increase the content of fulvic acid in the soil.
Using fulvic acid into soil can improve soil organic inorganic compound, increase the large particle size of aggregate and water stability of soil soil structure improved. So using fulvic acid fertilizers can effectively improve the soil physical structure. From the above, people call Fulvic acid is the high quality soil conditioner.
- Applying fulvic acid liquid fertilizer on leaves can reduce stomatal conductance, transpiration and loss of water.
According to the test, the stomatal conductance of wheat leaves which sprayed fulvic acid liquid was 33.7% lower than that of control. Applying fulvic acid to wheat not only reduced stomatal conductance, but also reduced stomatal opening and stomatal closing, and provided nutrients for wheat.
- Fulvic acid can stimulate the growth of crop roots and enhance the water absorption capacity of roots.
Fulvic acid contains a variety of functional groups with chemical and biological activities, which have the effect of stimulating the growth and development of crops, enabling early germination, seedling emergence, early flowering and early setting fruit of seeds, increasing root length and root activity, and enhancing the ability of crop roots to absorb nutrients and water.
- Fulvic acid can enhance the physiological regulation function of plants and improve the cold resistance of crops.
Application of fulvic acid fertilizer can enhance the enzyme activity in soil and plant body, regulate the physiological metabolism function of crops, and enhance the adaptability of crops to adverse environmental conditions.