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

Abstract

The invention discloses a slow-release fertilizer specialized for pear trees 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 the porous property and the strong adsorption capability of the matrix to compound with nitrogen, phosphorus, potassium and other nutrition elements necessary for the growth of the pear trees to prepare the granular biological carbon-based slow-release fertilizer specialized for the pear trees. The biological granular carbon is black biological granular carbon particles formed after incomplete combustion of the agricultural waste under a 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 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 pear trees in the whole growth period by one fertilization time, having the 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 pear tree production.

Description

[0001] technical field [0002] The invention belongs to the technical field of agricultural fertilizer production, in particular to a special slow-release fertilizer for pear trees using biomass granular carbon as a matrix and a preparation method thereof. Background technique [0003] Pear tree is a perennial fruiting tree, harvesting fruit every year will take away a large amount of nutrients, if not supplemented in time, it will inevitably affect the tree vigor and cause serious big and small years. Therefore, rational fertilization is one of the important measures to promote the robustness of pear trees, enhance resistance and prolong the fruiting period, and obtain high and stable yields. At present, there are the following problems in the fertilization of pear trees: First, multiple fertilization is required in the annual growth cycle of pear trees. The chemical fertilizers used in pear trees are mainly quick-acting fertilizers, which dissolve quickly in the soil. If ...

AI Technical Summary

Problems solved by technology

At present, there are the following problems in the fertilization of pear trees: First, multiple fertilization is required in the annual growth cycle of pear trees. The chemical fertilizers used in pear trees are mainly quick-acting fertilizers, which dissolve quickly in the soil. The root system can also cause the loss of nitrogen and potassium fertilizers: the second is that the roots of pear trees are distributed in the deep soil layer. When fertilizing, trenches should be dug and applied to the root zone to play a role. Frequent trenching and