Special slow-release fertilizer taking biomass granular carbon as matrix for radishes and preparation method thereof

Abstract

The invention discloses a special slow-release fertilizer taking biomass granular carbon as a matrix for radishes and a preparation method thereof. Granular carbon prepared from agricultural abandoned biomass such as corncobs, peanut shells, rice husks and edible mushroom matrixes, taken as a matrix material, is compounded with nitrogen, phosphorus, potassium and other nutrient elements essential to the growth and development of the radishes by utilizing the microporous character and strong adsorption capacity of the granular carbon, so that the special slow-release fertilizer taking the biomass granular carbon as the matrix for the radishes is prepared. According to the invention, the biomass granular carbon is black biomass granular carbon particles formed after incomplete combustion of the agricultural abandoned biomass under a hypoxic condition, has various properties similar to those of soil humus, is very strong in capacity of adsorbing and maintaining nutrients and moisture, and furthermore, and has an effect of stimulating the growth of crops and a good slow-release performance for the nitrogen, phosphorus and potassium; the slow-release fertilizer prepared in such a way can effectively meet the requirements of the radishes for nutrients in the whole growth period after being applied once; and in addition, the special slow-release fertilizer has the characteristics of enhancing the soil fertility, improving the soil structure, being efficient and environmentally-friendly, and the like, thereby being beneficial to large-scale popularization and application in radish production.

Description

[0001] technical field [0002] The invention belongs to the technical field of agricultural fertilizer production, and in particular relates to a special slow-release fertilizer for radish using biomass granular carbon as a substrate and a preparation method thereof. Background technique [0003] In radish production, rational fertilization is an important measure to ensure yield and quality. The growth period of radish is long, about 80-100 days from sowing to harvesting, and the absorption of nutrients varies with different growth periods: generally, plants absorb more nitrogen in the seedling stage, and absorb less phosphorus and potassium; In the early stage, the plant’s absorption of potassium increased significantly, followed by nitrogen and phosphorus; in the period of succulent root expansion, it was the peak period of nutrient absorption. At this time, the absorption rate of nitrogen was slightly slow, while the absorption of potassium continued to increase signifi...

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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.