Fulvic acid, the essence of humic acid, stands out in agricultural production with its small molecular weight and high activity, showing excellent results. Its characteristics include easy absorption by plants, rich functional groups, and strong complexing ability for metal ions. Unlike general humic acid, fulvic acid can be directly dissolved in water to form an acidic solution, which makes it more widely used in the agricultural field.
Fulvic acid has the function of promoting plant growth, especially properly controlling the opening of stomata on the leaves of crops, reducing transpiration, playing an important role in drought resistance, improving stress resistance, increasing production and improving quality. The main application objects are wheat, corn, sweet potatoes, millet, rice, cotton, peanuts, rapeseed, tobacco, sericulture, fruits, vegetables, etc.; it can be mixed with some non-alkaline pesticides, and often has a synergistic effect.
1. It can be used as a plant growth regulator.
2. It can be used for spraying crops, drought resistance, and dry hot wind resistance. Taking foliar spraying of wheat as an example, the average stomatal opening can be reduced by about two-thirds. At the same time, it can also improve the vitality of the plant root system, prevent premature aging, increase the activity of various enzymes, and increase the chlorophyll content by more than 20%.
3. For foliar spraying of economic crops such as apples, grapes, peanuts, watermelons, vegetables, and tea, it can increase the sugar content by 2-4 degrees, reduce the acidity, and increase VC, thus improving the quality of the fruit. For cotton, it can prevent and treat yellow wilt and increase the cotton yield by 15-30%.
4. For medical treatment, it can increase the body’s immunity, adjust gastrointestinal function, and fight tumors. It has hemostatic, anti-inflammatory, and blood circulation and stasis effects, and has better efficacy for hypertension and gynecological diseases.
5. As a feed additive, it can increase the appetite of pigs, make them tender and fat; increase the egg production rate of chickens by 15.5%, the hatching rate of chickens by 21.8%, and the healthy chick rate by 15-20%, and prevent livestock diseases and chicken plague.
6. Used as dyes for industry and cigars, ceramic additives, mineral processing inhibitors, battery cathode expanders, heavy metal ion adsorbents, etc.
Structural characteristics of fulvic acid
1. Element composition: C 54.82% H 2.29% O 41.14% N 0.66% S 1.09%.
2. Functional group content: total acid group 8.76 mg equivalent/g (hydroxyl group 6.12 mg equivalent/g, phenolic hydroxyl group 2.64 mg equivalent/g).
Product quality standards of fulvic acid:
Fulvic acid solid is brown or gray-black, sour, odorless, easily soluble in water, ethanol, dilute acid, dilute alkali and aqueous acetone.
1. Fulvic acid content ≥ 95%
2. 10% aqueous solution pH range is about 2.5~3
3. Heavy metals <20PPM
4. Arsenic salts <2PPM
5. E4∥E6 ratio is between 10~15
Fulvic acid is a reddish brown or grayish black powdery substance soluble in water. It can promote plant growth, play an important role in drought resistance, improve plant resistance, increase production and improve quality. The main application objects are wheat, corn, sweet potatoes, millet, rice, cotton, peanuts, rapeseed, tobacco, sericulture, fruits, vegetables, etc.
