Four major functions of Fulvic acid
source: time: 2019-02-23 10:41:40
1. Improve soil improvement and soil aggregate structure
Fulvic acid is a humus substance, which can affect the properties of the soil and promote the formation of a more stable aggregate structure in the soil, increasing the content of aggregates ≥ 0.25mm in the soil by 10-20% and the organic matter content by 10%, which can keep the soil moisture , Increasing ventilation is conducive to the growth of crops.
Enhance the water retention of the soil. Fulvic acid is a hydrocolloid with strong water absorption capacity. The maximum water absorption can exceed 500%. The weight of water absorbed from saturated atmosphere can reach more than twice its own weight, which is much larger than ordinary mineral colloids; Fulvic acid inhibits crop transpiration, slows down soil water consumption, and increases soil water content accordingly.
Enhance soil fertility retention. Fulvic acid itself is an organic acid, which not only increases the dissolution of minerals in the soil, provides soil nutrients, but also increases the effectiveness of nutrients through complexation. As an organic colloid, fulvic acid has both positive and negative charges, which can adsorb anions and cations, so that these nutrients can be stored in the soil and will not be lost with water, and it is of great significance on sandy soil to improve the utilization rate of fertilizers.
2. Promote the absorption of micro-fertilizers and solve nutrient deficiency
The trace elements in the fulvic acid chelation form a fulvic acid chelate that is highly mobile and easily absorbed by crops, and is transmitted to the lack of nutrients in the crops, effectively solving the deficiency of nutrients. Fulvic acid can chelate with iron, zinc and other trace elements to form a fulvic acid trace element chelate that has good solubility and is easily absorbed by plants, which effectively solves the yellowing of leaves due to iron deficiency
3. Improve crop quality
Fulvic acid has the function of a surfactant, which can reduce the surface tension of water and emulsify and disperse pesticides; it can produce different degrees of hydrogen bond association or ion exchange reaction with many pesticides; it can make the fruit color and mature in advance, similar The ripening effect of ethylene and so on.
4. Strong disease resistance
Fulvic acid directly increases the content of soil organic matter and provides an excellent environment for beneficial microorganisms. The beneficial population gradually develops as a dominant population and inhibits the growth of harmful pathogens. In addition, the plants themselves grow robust due to good soil conditions and strengthen disease resistance. , Thus greatly reducing the occurrence of diseases, especially soil-borne diseases. In addition, fulvic acid has an obvious inhibitory effect on fungi, and can prevent many diseases caused by fungi.
Fulvic acid is the best component of soil humus. It can not only reduce the burden on crops, increase soil fertility, and enrich the substrate of soil bacteria, but also increase the yield and quality of crops, thereby helping farmers to increase production, improve quality, and nourish land. Long-term goals.