Nitrogen-fixing compound fertilizer and preparation method thereof

Abstract

The invention relates to the technical field of compound fertilizers, in particular to a compound fertilizer and a preparation method thereof. Through the combination of potassium sulfate, urea phosphate, potassium chloride, potassium nitrate, potassium dihydrogen phosphate, carboxamide, calcium humate, talcum powder, ethyl cellulose, cyclohexanol, 2-butanol, sodium silicate, sepiolite, zinc, selenium, azotobacter microbial strains, traditional Chinese medicine residues, livestock and poultry manure, nutrient elements in the compound fertilizer and beneficial elements can meet the requirementsof more crops, and the utilization rate of the fertilizer is increased to more than 65%, and thus the fertilizer has the characteristics of water conservation and fertilizer conservation; through theprocess conditions in the preparation process of the compound fertilizer, the quality of the compound fertilizer is improved, and thus the nutrient absorption rate of crops is improved.

Description

technical field [0001] The invention relates to the technical field of compound fertilizers, in particular to a compound fertilizer and a preparation method thereof. Background technique [0002] my country is a large agricultural country, and its annual total grain production ranks first in the world; therefore, the annual amount of fertilizer used for grain planting is also relatively high. Due to the use process, preparation process, and unreasonable elements in the fertilizer, the nutrient utilization rate of the fertilizer is low, and the soil environment suffers serious ecological damage. In the existing technology, the chemical fertilizer market is mainly based on fully soluble, fast-dissolving, and fast-dispersing varieties, which further accelerates the waste of fertilizers and the loss of nutrients, making it necessary to fertilize multiple times during the planting process to meet the growth of crops. demand, which in turn increases the amount of labor and the cos...

AI Technical Summary

Problems solved by technology

[0002] my country is a large agricultural country, and its annual total grain production ranks first in the world; therefore, the annual amount of fertilizer used for grain planting is also relatively high. Due to the use process, preparation process, and unreasonable elements in the fertilizer, the nutrient utilization rate of the fertilizer is low, and the soil environment suffers serious ecological damage.

In the existing technology, the chemical fertilizer market is mainly based on fully soluble, fast-dissolving, and fast-dispersing varieties, which further accelerates the waste of fertilizers and the loss of nutrients, making it necessary to fertilize multiple times during the planting process to meet the growth of crops. demand, which in turn increases the amount of labor and the cost of planting, which inhibits the development of agriculture; for this reason, some researchers, starting from the above technical problems, have studied how to improve the soil, increase soil fertility, rich in nutrients, and coordinate and lasting release of nutrients , high nutrient availability were studied