Slow-release fertilizer specialized for litchis by using biological granular carbon as matrix, and preparation method of slow-release fertilizer

Abstract

The invention discloses a slow-release fertilizer specialized for litchis by using biological granular carbon as matrix, and a preparation method of the slow-release fertilizer, which comprises the following preparation steps: using granular carbon prepared from agricultural waste such as corncobs, peanut shells, rice husks and edible mushroom matrix as a matrix material, making use of porous property and strong adsorption capability of the matrix to compound with nitrogen, phosphorus, potassium and other nutrition elements necessary for the growth of the litchis to prepare the granular biological carbon-based slow-release fertilizer specialized for the litchis. The biological granular carbon used by the slow-release fertilizer is black biological granular carbon particles formed after the incomplete combustion of the agricultural waste under the condition with low oxygen; the biological granular carbon has various properties similar to soil humus, and the capability of the slow-release fertilizer for adsorbing and retaining the nutrition and the moisture is very strong; the biological granular carbon is also capable of stimulating the growth of crops, having the good performance of slowly releasing the nitrogen, the phosphorus and the potassium; the prepared slow-release fertilizer is capable of effectively supplying the nutrition demand of the litchis in the whole growth period by one fertilization time, having characteristics of improving the soil fertility, improving the soil structure and achieving high efficiency and environmental protection, is beneficial for large-scale popularization and application in the litchi production.

Description

[0001] technical field [0002] The invention belongs to the technical field of agricultural fertilizer production, and in particular relates to a special slow-release fertilizer for litchi with biomass granular carbon as a matrix and a preparation method thereof. Background technique [0003] Lychee is a typical evergreen fruit tree in subtropical regions. The root system has no natural dormancy period throughout the year, and the root absorption capacity is very strong. It replaces the fruiting parent branches by extracting new shoots every year. It needs to extract new shoots many times a year, which requires a comprehensive supply of various elements. At present, the fertilizers applied to litchi are mainly quick-acting fertilizers, which dissolve quickly after being applied to the soil. If too much application is applied at one time, it will not only damage the root system, but also easily cause the loss of nitrogen and potassium fertilizers and the fixation of phosphat...

AI Technical Summary

Problems solved by technology

In the burning season, there have been many incidents where flights could not land and highways were forced to close due to the smog in the sky, which not only wasted a lot of precious resources, but also brought serious pollution to the environment.