Now, most fertilizers in the market will talk about humic acid in my products when doing sales promotion, how good humic acid is, as a selling point and increase the price! This situation is common in both compound fertilizer and organic fertilizer! But farmer friends don't know what humic acid is! What are the specific functions!
So, what exactly is humic acid? What is humic acid used for? Let's take a look.
Humic acid is a mixture of natural organic macromolecular compounds. Widely present in nature, the proportion of humic acid in the soil is the largest, and the concept of humic acid in a broad sense is: animal and plant remains, mainly plant remains, after the decomposition and transformation of microorganisms, as well as a series of processes in geochemistry caused and accumulated a class of organic matter. This is the basic definition of humic acid.
In the soil organic matter, more than above is humic acid, in the corrosive matter humic acid is the main body and its salt combined with metal ions, humic acid is the most active and effective part of the organic matter.
The most direct effect of humic acid: to promote plant growth, increase crop yields.
For soil: improve soil structure, adjust soil pH to increase soil buffer capacity.
Biological effect: stimulate crop growth and development, the use of humic acid can enhance the activity of a variety of enzymes in crops, improve the ability of crops to absorb water and nutrients, enhance crop metabolism, accelerate growth and development, early maturation, improve quality.
In addition, from the perspective of agricultural applications, humic acid also has strong drought resistance, disease resistance, low temperature resistance and salt resistance.
In the past 5 years, the National Agricultural Technology Extension Service Center has carried out experimental demonstrations of humic acid fertilizers across the country, and authoritatively verified the use of humic acid fertilizers in agriculture.
1, "five major roles" to improve soil, increase fertilizer efficiency, stimulate growth, enhance stress resistance, improve quality),
2, "four-agent function" (drought resistance agent, growth regulator, pesticide sustained release synergist and chemical element complexing agent),
3, "three effects" (low-carbon, ecological, high-quality),
4, "two highs and three less" (high fertilizer utilization rate, high crop yield, less fertilizer use, less fertilization frequency, less harmful gas emissions),
5, "three doses" (fertilizer synergist, soil regulator, rhizosphere stimulation agent) effect,
Finally, it is necessary to emphasize the relationship between soil organic matter and humic acid: organic matter is not necessarily humic acid, but humic acid must be the best organic matter. The combination of humic acid and chemical fertilizer has natural superior conditions, which can not only raise good soil, but also cultivate good fertilizer, and be good with crops and the environment. In this sense, it is of positive and practical significance to optimize chemical fertilizers, improve soil fertility, and ensure the safe production of agricultural products by allowing safe organic matter, especially industrially extracted humic acid organic matter.
It can be seen that humic acid has this good contribution to both soil and crops, and if humic acid is indeed added to the fertilizer, the effect should be good.
The above is the relevant answer to humic acid, I hope it is useful to everyone. Thank you all for your attention to the farmers!