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

Abstract

The invention discloses a special slow release fertilizer for longan 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 longan is prepared by compounding the matrix material and nitrogen, phosphorus, potassium and other nutritional elements required by growth and development of the longan. 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 longan 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 longan.

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 longan using biomass granular carbon as a substrate and a preparation method thereof. Background technique [0003] Reasonable fertilization is a key measure to cultivate strong tree vigor and sufficient and substantial fruiting branches of longan, as well as to improve flower quality, fruit setting rate, yield and fruit quality. Longan is a typical evergreen fruit tree in the subtropical region. The root system has no natural dormancy period throughout the year, and the root absorption capacity is very strong. It replaces the fruiting mother branch by growing new shoots every year. New shoots need to be drawn many times a year, which requires a comprehensive supply of various elements. Since longan in our country is mostly planted on hilly slopes, digging ditches and fertilizing is more troublesome, and l...

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.