Modified fulvic acid chelated medium trace element sustained release preparation and preparation method thereof

Abstract

The invention discloses a modified fulvic acid chelated medium trace element sustained release preparation and a preparation method thereof, and belongs to the technical field of fertilizers. The fertilizer is prepared from the following raw materials in parts by weight: 10-20 parts of modified fulvic acid, 10-23 parts of medium trace elements, 1-5 parts of a slow-release auxiliary agent and 52-79 parts of water. The sulfomethylation modified fulvic acid is added, so that the chelating property of the medium trace elements is improved, the medium trace elements are easily absorbed and utilized by crops, meanwhile, the alginic acid hydrogel is used as the slow-release material, the slow-release effect on the modified fulvic acid and other nutrient substances can be achieved, and continuous nutrient supply is provided for the crops; and the two components cooperate with each other to enhance the chelating effect and continuously provide nutrient substances for the crops. The raw materials are scientifically proportioned and matched with one another, so that the production and income are increased, and the economic benefits and the social benefits are remarkable.

Description

technical field [0001] The invention belongs to the technical field of water-soluble fertilizers, in particular to a modified fulvic acid chelated trace element slow-release preparation and a preparation method thereof. Background technique [0002] In agricultural production, medium and trace elements can promote high and stable crop yields, improve the quality of agricultural products, and thus play an extremely important role in improving the living standards of residents. With the large-scale application of nitrogen, phosphorus and potassium fertilizers and the reduction in the amount of organic fertilizers in my country, there are fewer trace elements available in the soil. In order to coordinate the nutrient balance between large and medium trace elements, my country's fertilization targets are adjusted to nitrogen and phosphorus. , Potassium fertilizer reduction and efficiency increase, to further ensure the safety of national crops. Therefore, it is particularly urge...

AI Technical Summary

Problems solved by technology

[0011] In the preparation process of trace elements in the modified fulvic acid chelation, the raw materials need to be put into the reactor and mixed evenly, but the following problems occur in the traditional stirring device during the stirring process: 1) The raw materials are not mixed when they are just added. Open, chelation is affected by properties such as the molecular weight and functional groups of fulvic acid, the local concentration is high, and it is easy to cause agglomeration or precipitation on site. The traditional stirring device can only mix uniformly by increasing the stirring time, which wastes resources; 2) the traditional stirring device It is easy to generate vortex during the rotation process, so that the sediment or crystallization produced by the raw materials gathers at the center and rotates with the stirring shaft, so it cannot be mixed quickly and uniformly.

Images