Humic acid-added potassium fertilizer and preparation method thereof

Abstract

The invention discloses a humic acid-added potassium fertilizer and a preparation method thereof. The humic acid-added potassium fertilizer comprises the following components in percentage by weight: 40-60% of inorganic potassium salt, 15-30% of humic acid and 10-20% of bentonite. The preparation method comprises the steps of crushing humic acid according to a certain ratio; then, uniformly mixing humic acid and bentonite; next, mixing and stirring the mixture and inorganic potassium salt on a disc granulator. The granular potassium fertilizer disclosed by the invention has a yield increasing effect, not only contains the rapidly available potassium element required by the growth of crops, but also can be used for increasing the yield of the crops and improving the quality of the crops due to the addition of the humic acid. By using the fertilizer, the utilization rate of the fertilizer can be increased, the labor can be saved, the mechanical fertilizer application can be realized conveniently, and the aims of saving the fertilizer and labor and scientifically using the fertilizer are achieved.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a potassium fertilizer added with humic acid and a preparation method thereof. Background technique [0002] Humic acid is the remains of animals and plants, mainly the remains of plants, which is a type of organic substance caused and accumulated by a series of processes of microorganisms, decomposition and transformation, and geochemistry. As an organic raw material, humic acid is widely used in various fields such as agriculture, forestry, animal husbandry, petroleum, chemical industry, building materials, medicine, sanitation, and environmental protection. In agriculture, humic acid fertilizers made by combining nitrogen, phosphorus, potassium and other elements (for example: neutralizing humic acid with ammonia can be used to make ammonium humate fertilizers), which have fertilizer synergies, improve soil, stimulate crop growth, Improve the quality of agricultural...

AI Technical Summary

Problems solved by technology

[0003] At present, in agricultural production, due to the low or improper application of potassium fertilizers, the quality of crops has declined, such as rice and wheat are not fragrant, melons and fruits are not sweet, and the appearance is deformed. The demand for potassium in the middle and later stages can easily cause crops to lose fertilizer in the later stage

The most effective method is to apply a slow-release potassium fertilizer containing humic acid, but there is no such fertilizer in the agricultural materials market at present