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

Abstract

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

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 loquat with biomass granular carbon as a substrate and a preparation method thereof. Background technique [0003] Loquat is an 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 loquat trees have four shoot peaks in a year, and the shoots are drawn four times a year in spring, summer, autumn, and winter. During this period, flower bud differentiation and fruit setting are carried out at the same time. The total amount of fertilizer required is about twice that of deciduous fruit trees. Therefore, the nutritional regulation of loquat trees is very important. If there is excess nutrition, the shoots will grow too vigorously, causing a lot of flower and fruit drop. Insufficient nu...

AI Technical Summary

Problems solved by technology

At present, the loquat production in my country has the following problems: First, most of the loquat orchards in my country are distributed on hillsides with poor soil and acidity, and the content of organic matter, calcium and magnesium in the soil is inherently low. Second, the current loquat fertilization is mainly quick-acting chemical fertilizers, which dissolve quickly in the soil. If too much is applied at one time, it will not only damage the root system, but also cause the loss of nitrogen and potassium fertilizers and the fixation of phosphorus fertilizers by the soil, resulting in Fertilizer waste and eutrophication of rivers and lakes

With the continuous expansion of loquat planting area, organic fertilizers can no longer meet the needs, and the repeated application of chemical fertilizers has the following disadvantages: one is to increase the labor intensity and labor costs of farmers; the other is that the root regeneration ability of loquat is not strong, and frequent digging Furrow fertilization will cut off a large number of roots and affect 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.