Soil phosphorus activator and preparation method therefor

Abstract

The invention relates to a soil phosphorus activator and a preparation method therefor. The soil phosphorus activator is prepared from urea phosphate, fulvic acid, sodium alginate, oxalic acid, citric acid, maleic acid and compound sodium nitrophenolate. The activator is prepared by the steps: crushing the raw materials by a crusher; screening the crushed materials by a 150-mesh sieve; and after uniformly mixing the powder in proportion, bagging and packaging the powder to obtain the activator. The soil phosphorus activator can be used for activating fixed phosphorus in soil, and has functions of promoting crops to absorb phosphorus, improving the yield of the crops and increasing the content of rapid available phosphorus, and has a relatively good effect on reduction of use of a phosphorus fertilizer; moreover, the growth of the crop root system can be effectively promoted to improve the root system activity so as to improve the absorption capacity of the root system on soil phosphorus, thereby indirectly improving the yield of the crops; the water solubleness of the activator is greater than 99.99% and the soil phosphorus activator can be applied as a trickle irrigation fertilizer.

Description

technical field [0001] The invention relates to a soil phosphorus activator and a preparation method, belonging to the field of fertilizers. Background technique [0002] Phosphorus is one of the most important essential nutrients for plant growth. Its physiological role in crops is extremely important. It is not only a component of many important organic compounds in plants, but also participates in various metabolic processes in plants in various ways. The high yield of crops and maintaining the excellent characteristics of varieties play an irreplaceable role. The phosphorus needed for crop growth and development mainly comes from the soil. [0003] Generally, the seasonal utilization rate of phosphate fertilizer is only 10%-25%. The main reason for the low efficiency of phosphate fertilizer is that the soil is fixed. The phosphate fixed by the soil can be released slowly under different conditions for the absorption and utilization of crops. The after effect is long. ...

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Problems solved by technology

[0003] Generally, the seasonal utilization rate of phosphate fertilizer is only 10%-25%. The main reason for the low efficiency of phosphate fertilizer is that the soil is fixed. The phosphate fixed by the soil can be released slowly under different conditions for the absorption and utilization of crops. after effect is very long

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