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

A technology of biomass granular carbon and biomass particles, which is applied in the direction of fertilizer mixture, application, fertilization device, etc., can solve the problems of forced highway closure, flight failure to land, environmental pollution, etc., and achieve the purpose of absorbing and maintaining nutrients and water Strong capacity, reduced fertilizer leaching loss, and easy access to raw materials

Inactive Publication Date: 2013-03-27
上海孚祥生态环保科技股份有限公司
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  • Application Information

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 t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0078] Embodiment 1: the preparation technology of the slow-release fertilizer specially used for onion based on biomass granular charcoal

[0079] Mix in weight ratio or weight percentage according to the following steps:

[0080] (1) Take large granular urea with nitrogen (N) content of 46%, and 80 mesh biomass granular carbon particles, mix them according to the ratio of 71.9% and 28.1%, and use a disc granulator (fertilizer) with heating function. Commonly used machinery in the preparation process) is coated to make an elemental slow-release nitrogen fertilizer with a nitrogen (N) content of 33.07%.

[0081] (2) Take diammonium phosphate powder with nitrogen (N) content of 18% and available phosphorus (P2O5) content of 46%, 80 mesh biomass granular carbon particles and binder, according to 74.1%, 19.9% It is mixed with 6.0%, and the KP-300 type organic fertilizer granulator is used for pressure granulation to make a nitrogen-phosphorus compound fertilizer with a nitro...

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PUM

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Abstract

The invention discloses a special slow-release fertilizer taking biomass granular carbon as a matrix for onions 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 onions 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 onions 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 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 onions 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 onion production.

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 onions with biomass granular carbon as a matrix and a preparation method thereof. Background technique [0003] In onion production, rational fertilization is an important measure to ensure yield and quality. Onion belongs to the string-like fibrous root system, with weak root branching and regeneration ability. When the root system that has occurred is cut off, the broken root system cannot produce lateral roots. Therefore, in the cultivation and management of onion, the damage to the root system should be minimized. In terms of fertilization, it is emphasized to apply more organic fertilizers with long-term fertilization effects and comprehensive nutrition to provide better nutrition and reduce the damage to the root system caused by the frequency of fertilization. But with the increase of planting area,...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/08C05G3/90
CPCY02P60/21Y02A40/22
Inventor 李辰淼侯善华张丹
Owner 上海孚祥生态环保科技股份有限公司
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