Special slow release fertilizer for walnut by using biomass granular carbon as matrix and preparation method thereof

Abstract

The invention discloses a special slow release fertilizer for walnut by using biomass granular carbon as a matrix and a preparation method thereof. Granular carbon prepared from agricultural wastes such as corn cobs, peanut shells, rice hulls, edible fungi matrix and the like are used as a matrix material; and based on the micro-pores and strong adsorption capability of the matrix material, the granular biomass carbon-based special slow release fertilizer for the walnut is prepared by compounding the matrix material and nitrogen, phosphorus, potassium and other nutritional elements required by growth and development of the walnut. The biomass granular carbon is black biomass granular carbon granules formed after the agricultural waste biomass is incompletely burnt under the low-oxygen condition, has multiple properties similar to soil humus and strong adsorption and nutrient and moisture holding capabilities, can stimulate growth of crops, and has good slow release performance on nitrogen, phosphorus and potassium; when the prepared slow release fertilizer is applied at one time, the requirements of the walnut for nutrients in the whole growth period can be effectively met; and the slow release fertilizer has the characteristics of increasing soil fertility, improving the structure of soil, realizing high efficiency and environment friendliness and the like, and is beneficial to large-scale popularization and application in the production of the walnut.

Description

[0001] technical field [0002] The invention belongs to the technical field of agricultural fertilizer production, in particular to a walnut-specific slow-release fertilizer with biomass granular carbon as a substrate and a preparation method thereof. Background technique [0003] In walnut production, rational fertilization is an important measure to ensure the growth and development of walnut trees and achieve high and stable yields. The nutrient requirements in the annual cycle of walnut are closely related to the phenological period: after spring germination, the phenological progress of the main organs of walnut is extremely rapid. There are more nutrients, so it is necessary to topdress quick-acting nitrogen and phosphorus fertilizers before germination in spring. After May and June, the fruit develops rapidly and the flower buds begin to differentiate. The size of fruit development and the quality and quantity of flower bud differentiation depend on whether there i...

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.