Humic acid is the remains of plants and animals (mainly the remains of plants) that have been decomposed and transformed by microorganisms, as well as a series of complex geochemical reactions and accumulated organic substances. The main elements of humic acid are carbon, hydrogen, oxygen, nitrogen, and sulfur. They are widely distributed in low-grade coal, soil, water sediments, animal excrement, organic fertilizers, and animal and plant residues. The soil we often see is black, because it contains humic acid (the soil that contains no or less humic acid is yellow).
In accordance with the solubility and color classification in the solvent, can be divided into three components: 1 dissolved in acetone or ethanol as part of fulvic acid; 2 insoluble in acetone known as humic acid; 3 soluble in water or dilute The acid part is called fulvic acid.
It can be used in agriculture as a nutrient soil additive, rooting and strong root fertilizer additive, soil conditioner, plant growth regulator, foliar fertilizer compound, cold resistance agent, drought resistance agent, compound fertilizer synergist, and nitrogen, phosphorus, The humic acid fertilizers made from the combination of potassium and other elements have the functions of increasing fertilizer efficiency, improving soil, stimulating crop growth, and improving the quality of agricultural products.
Magnesium humate, zinc humate, and urea and humic acid have good effects in supplementing magnesium deficiency in soil, zinc deficiency in corn, and iron deficiency in fruit trees. The combination of humic acid, herbicidal ether, atrazine and other pesticides can improve the efficacy of the drug. Suppresses residual drug; sodium humate is effective in treating apple tree rot.
Fulvic acid
Fulvic acid is a broad-spectrum plant growth regulator, which can promote plant growth, especially control the openness of crop leaf stomata, reduce transpiration, play an important role in fighting drought, can improve stress resistance, increase production and improve quality. The main application objects are wheat, corn, sweet potato, millet, rice, cotton, peanut, rapeseed, tobacco, sericulture, fruits, vegetables, etc., which can be mixed with some non-alkaline pesticides, and often have synergistic effects.
Amino acid
The role of amino acids in plant growth has three aspects: The first is the supplemental source of organic nitrogen nutrients. The second is a metal ion chelator that easily carries the plant's desired intermediate and trace elements (calcium, magnesium, iron, manganese, zinc, copper, molybdenum, boron, selenium, etc.) into the plant body and enhances Utilization of nutrients. The third is an enzymatic preparation. Amino acids are promoters and catalysts for synthesizing various enzymes in plants and play an important role in plant metabolism. However, amino acids are easily assimilated and decomposed by bacteria in the soil. Therefore, they should not be used as basal fertilizers in soils, but should be made into foliar fertilizers that are sprayed on the leaves to allow the plants to directly absorb them through the foliage.
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