Fertilizer efficiency retention agent and application thereof

Abstract

The invention relates to the technical field of an agricultural fertilizer, and discloses a fertilizer efficiency retention agent and an application thereof. The retention agent comprises a silicate mineral, a nitrogen conditioning agent, a phosphor conditioning agent and a crop growth active factor; wherein the nitrogen conditioning agent is an urease inhibitor and a nitrated inhibitor. The retention agent increases the urease inhibitor and a natural mineral material, and cooperates with the proper phosphor conditioning agent, the nitrated inhibitor and the crop growth active factor, the components are mutually promoted and can perform effects together, the conservation rate of the nitrogen and phosphorus nutrients and soil water soluble phosphate content are increased, the ammonia volatilization rate is reduced, and utilization rate of the fertilizer is increased.

Description

technical field [0001] The invention relates to the technical field of agricultural fertilizers, in particular to a fertilizer effect maintaining agent and its application. Background technique [0002] Fertilizer is one of the most important means of production in agricultural production and the material basis for sustainable agricultural development. Since German chemist Liebig J V put forward the theory of plant mineral nutrition in 1840, fertilizer has become a powerful force to promote the development of agriculture in the world. However, after more than a hundred years of development, the release rate of fertilizer nutrients has been unable to be controlled artificially. The release rate is too fast, and the crops lose it before they can absorb it. After the fertilizer is applied to the soil, there are not only the physical loss of volatilization, leakage, runoff and other physical ways, but also the transformation of nutrient molecules and ion forms (amide nitrogen t...

AI Technical Summary

Problems solved by technology

Since non-coated slow / controlled release fertilizers need to add various controlled release materials, inhibitors, or substances that can chemically react with nutrients in the production of fertilizers, in order to achieve slow / controlled release effects, the production process is extremely complicated. Large investment, difficult to use ordinary fertilizer production equipment, high cost, and unsatisfactory slow / controlled release effect, is gradually being replaced by coated slow / controlled release fertilizer

However, the cost of existing coated slow / controlled release fertilizer production equipment and film materials is high, resulting in expensive coated fertilizers; most coated slow / controlled release fertilizers use petroleum solvents such as toluene, xylene, and petroleum ether to dissolve the package. Clothing materials, high toxicity, harmful to the health of production and application personnel; other use of trichloroethylene, tetrachloroethylene, tetrachloromethane, etc. as solvents will destroy the ozone layer and cause air pollution

Some coating materials are also difficult to degrade, which may easily cause environmental pollution and other problems

[0004] Chinese patents CN102992907A and CN102992908A respectively disclose a nitrogen fertilizer synergistic loss control agent and its preparation method and a fertilizer synergistic loss control agent and its preparation method, both of which are composed of a nitrogen stabilizer, a biosurfactant, and a biological fermentation compound Composed of amino acids, plant growth regulators, metal ion chelating agents and water, the two products can reduce the loss of nitrogen and phosphorus and improve the utilization rate of fertilizers, but their effects in maintaining fertilizer efficiency still need to be further improved

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