Citrus specialized slow release fertilizer using biomass granular carbon as substrate and preparation method of citrus specialized slow release fertilizer

Abstract

The invention discloses a citrus specialized slow release fertilizer using biomass granular carbon as a substrate and a preparation method of the citrus specialized slow release fertilizer. The granular carbon prepared by waste agricultural biomass of corn cobs, peanut shells, rice hulls, edible mushroom substrates and the like is used as a substrate material, and the granular carbon which is microporous and high in adsorption capacity is compounded with nitrogen, phosphori, potassium and other nutrient elements which are required for growth and development of citruses to be prepared into the granular biomass carbon based citrus specialized slow release fertilizer. According to the citrus specialized slow release fertilizer, the used biomass granular carbon is black biomass granular carbon granules formed by incomplete combustion of the waste agricultural biomass under the low oxygen condition, and the biomass granular carbon has multiple characteristics similar to soil humus and is high in capability of absorbing and keeping nutrient and water, good in slow release performances of nitrogen phosphorus kalium and capable of stimulating crop growth. The prepared release fertilizer is applied for one time and can efficiently provide nutrient for the citruses during a whole growing period, besides, the citrus specialized slow release fertilizer has the advantages of being capable of increasing soil fertility, improving soil structure, effective and environment-friendly, and large-scale popularization and application during production of the citruses are facilitated.

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 citrus with biomass granular carbon as a substrate and a preparation method thereof. Background technique [0003] Citrus is a typical evergreen fruit tree in the subtropical region, with continuous physiological activities, a long growth period, a large amount of fruit, and a large amount of fertilization. Adult citrus trees have to go through the physiological changes of budding, flowering and fruiting in a year. The shoots are drawn four times a year in spring, summer, autumn and winter. During this period, the process of flower bud differentiation and fruit setting is carried out at the same time. twice the size of fruit trees. Therefore, the nutritional regulation of citrus trees is very important. If there is excess nutrition, the shoots will grow too vigorously, causing a lot of flower and fruit dr...

AI Technical Summary

Problems solved by technology

At present, the citrus production in my country has the following problems: First, most of the citrus orchards in my country are located in mountainous and hilly areas, where the land slope is large, and the water and soil are easy to be lost; Excessive application at one time not only damages the root system, but also causes the loss of nitrogen and potassium fertilizers and the fixation of phosphorus fertilizers by the soil, resulting in waste of fertilizers and eutrophication of rivers and lakes

With the continuous expansion of citrus planting area, organic fertilizers can no longer meet the needs, and the repeated application of chemical fertilizers has the following disadvantages: first, it increases the labor intensity and labor costs of farmers; A large number of roots, affecting the absorption of nutrients

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.