Easy-to-absorb carbon-based slow-release fertilizer and preparation method thereof

Abstract

The invention discloses an easy-to-absorb carbon-based slow-release fertilizer. The slow-release fertilizer is prepared from raw materials in parts by weight as follows: 5-6 parts of raw humic acid powder, 24-26 parts of leaf mold, 6-9 parts of amino acid chelated micro-element fertilizer particles, 4-6 parts of a modified cassava starch solution, 8-10 parts of rare earth, 17-19 parts of rice straw, 4-6 parts of attapulgite, 6-7 parts of monoammonium phosphate, 30-35 parts of plant ash and 12-16 parts of tea dust. Additives are fully composted, so that the absorbability of the carbon-based slow-release fertilizer is greatly improved; compared with general nutrient components, added amino acid chelates can be absorbed and utilized by crops more easily; meanwhile, the fertilizer is long in slow-release period, waste caused by overnutrition due to the fact that a large quantity of the fertilizer is applied once can be avoided, time consumed by fertilizer application can be shortened, the labor intensity of fertilizer application can be reduced, and the usage value is increased.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to an easily absorbable carbon-based slow-release fertilizer and a preparation method thereof. Background technique [0002] Biochar is an insoluble porous solid material formed by pyrolysis of plant biomass at low temperature. It has high biochemical stability. After entering the soil, it can significantly improve the physical and chemical properties of the soil. It is an excellent fertilizer Sustained release material. However, the use of biochar to make slow-release fertilizers is rarely used in the market at present. Most farmers are reluctant to use high-priced slow-release fertilizers due to cost considerations. Therefore, carbon-based slow-release fertilizers cannot be used on a large scale. At the same time, most of the polymer coating materials widely used in the market are non-degradable polymers, and the residue after application will damage the soil structure. ...

AI Technical Summary

Problems solved by technology

However, the use of biochar to make slow-release fertilizers is rarely used in the market at present. Most farmers are reluctant to use high-priced slow-release fertilizers due to cost considerations. Therefore, carbon-based slow-release fertilizers cannot be used on a large scale. At the same time, most of the polymer coating materials widely used in the market are non-degradable polymers, and the residue after application will damage the soil structure.