Special controlled-release fertilizer for strawberry taking biomass granulated carbon as matrix and preparation method thereof

Abstract

The invention discloses a special controlled-release fertilizer for strawberry taking biomass granulated carbon as a matrix and a preparation method thereof. The granulated carbon prepared from the agricultural waste biomass such as corncob, peanut shell, rice hull, edible mushroom matrix and the like are used as the matrix material which is compounded with the necessary nitrogen, phosphorus, potassium and other nutrient elements for the strawberry growth by use of the multiple micropores and strong adsorption ability to obtain the granulated biomass carbon-based special controlled-release fertilizer for strawberry. In the invention, the biomass granulated carbon is the black biomass granulated carbon particles obtained by the incomplete combustion of the agricultural waste biomass under the low-oxygen condition, and has multiple characteristics similar to soil humus and strong adsorption and nutrient / moisture retaining abilities; and moreover, the biomass granulated carbon also can stimulate the crop growth, and has good controlled-release performance for nitrogen, phosphorus and potassium. The controlled-release fertilizer prepared from the biomass granulated carbon can effectively supply the nutrients required by the strawberry in the whole growth period by once application; and moreover, the controlled-release fertilizer has the characteristics of high efficiency, environmental protection and the like, enhances the soil fertility, improves the soil structure, and is favorable for large-scale popularization and application in the strawberry 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 strawberries with biomass granular carbon as a substrate and a preparation method thereof. Background technique [0003] In the cultivation and management of strawberries, rational fertilization is an important measure related to yield and quality. According to years of research, we have a clear understanding of the nutrient absorption laws of strawberries, especially the absorption laws of nitrogen, phosphorus, and potassium. However, the types of fertilizers currently used cannot fully meet the requirements of high yield, high efficiency and high quality of strawberries. The main problems are: firstly, strawberries are not salt-tolerant crops, and the quick-acting chemical fertilizers currently applied should not be too much at one time, otherwise it will affect the growth of strawberries, and a small...

AI Technical Summary

Problems solved by technology

However, the types of fertilizers currently used cannot fully meet the requirements of high-yield, high-efficiency, and high-quality strawberries.

The main problems are: firstly, strawberries are not salt-tolerant crops, and the quick-acting chemical fertilizers currently applied should not be too much at one time, otherwise it will affect the growth of strawberries, and a small amount must be used many times, so in the growth process of strawberries, topdressing should be done 3 to 6 times

Second, strawberry is a shallow-rooted crop. Most of the roots are distributed in the 20 cm soil layer. The nutrients in the lower soil are not easily absorbed. Strawberries need a lot of water, and quick-acting fertilizers, especially nitrogen fertilizers, are washed deep into the soil. Cause fertilizer waste, but also easily cause environmental pollution

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.