Root-friendly magnetic slow release fertilizer and preparation method therefor

Abstract

The present invention discloses a root-friendly magnetic slow release fertilizer and a preparation method therefor. The root-friendly magnetic slow release fertilizer is made of the following raw materials in parts by weight: 80-90 parts of bone powder, 12-15 parts of calcium nitrate, 150-160 parts of vermicompost, 120-140 parts of tobacco dust, 18-20 parts of carnallite powder, 25-30 parts of carbamide, 75-95 parts of coal ash, 50-60 parts of pyrite ash, 18-22 parts of tapioca starch, 5-7 parts of calcium acetate, 16-18 parts of a composite biological agent and an appropriate amount of water. According to the invention, the fertilizer is prepared from a main raw material of an organic matter. After the organic matter is applied into soil, the constitution of the soil environment of crop roots can be optimized. Adding various beneficial strain species has a protective effect on the root, and prevents the root from destruction of pathogenic inoculation. As absorbable components, carnallite powder and carbamide can promote growth of the crop roots and induce the roots to extend into deep soil, thereby improving crop nutrition absorption capacity and production performance.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a root-friendly magnetized slow-release fertilizer and a preparation method thereof. Background technique [0002] my country is a typical large agricultural country with a large population and little arable land, and chemical fertilizers play a very important role in the production of crops. According to the research, the nitrogen, phosphorus, potassium and other nutrients applied to the soil will undergo various physical and chemical changes, among which nitrogen will be lost through volatilization, leaching, denitrification, etc., and phosphorus is easily absorbed by Al in the soil. 3+ , Fe 3+ and Ca 2+ , Mg 2+ And other ions are fixed to form stable precipitates or form closed storage state phosphorus with iron, aluminum oxides, etc., and gradually lose their effectiveness. These factors will reduce the utilization rate of fertilizer application. The use of chemical ...

AI Technical Summary

Problems solved by technology

According to the research, the nitrogen, phosphorus, potassium and other nutrients applied to the soil will undergo various physical and chemical changes, among which nitrogen will be lost through volatilization, leaching, denitrification, etc., and phosphorus is easily absorbed by Al in the soil. 3+ , Fe 3+ and Ca 2+ , Mg 2+ and other ions are fixed to form stable precipitates or form closed storage phosphorus with iron, aluminum oxides, etc. and gradually lose their effectiveness

These factors will lead to a reduction in the utilization rate of chemical fertilizers

The use of chemical fertilizers will also bring environmental pollution, such as the greenhouse effect, eutrophication of water bodies, etc.