Fertilizer special for modified charcoal flue-cured tobacco and preparation method of fertilizer

A biochar, special fertilizer technology, applied in the field of agricultural chemistry, can solve the problems of limited adsorption capacity, affecting adsorption performance, reducing the specific surface area of ​​biochar, etc.

Inactive Publication Date: 2014-05-14
SHENYANG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although biochar has a certain adsorption capacity, its surface has a low content of hydrophobic functional groups and is hydrophobic, and its adsorption capacity for ammonium ions and nitrate ions is limited. The tar attached to the surface also greatly reduces the specific surface area of ​​biochar, affecting In order to fully exert the adsorption performance, it is urgent to improve its adsorption capacity through certain technical means.

Method used

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  • Fertilizer special for modified charcoal flue-cured tobacco and preparation method of fertilizer
  • Fertilizer special for modified charcoal flue-cured tobacco and preparation method of fertilizer
  • Fertilizer special for modified charcoal flue-cured tobacco and preparation method of fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Example 1 Exemplary Production Method of Tobacco Stem Biochar

[0064] This embodiment exemplarily describes the simple granular carbonization furnace and carbonization method described in the Chinese patent No. ZL201110073104.1, including steps such as charging furnace for carbonization, cooling out of the furnace, measuring and packaging, but is not limited thereto.

[0065] The moisture content of the tobacco stem is less than 10%, and the length is generally less than 10cm, so it can be directly charged into the furnace for carbonization

[0066] Furnace carbonization: put the processed tobacco stem particles into the furnace body, and the initial amount of material added should cover the burner by 10-25cm. Ignite the igniter in the ignition plate of the burner. Described igniter is diesel oil. After the material is ignited, it continues to ignite spontaneously without an external heat source. The material is anoxic and carbonized under sub-high temperature condi...

Embodiment 2

[0069] Example 2 Exemplary Production Method of Modified Tobacco Stem Biochar

[0070] After the liquid pyrolysis product obtained during the carbonization process of the carbonization furnace was left to stand for 48 hours, the upper liquid was taken, and rectified for 30 minutes under the conditions of the tower top temperature of 103°C and the bottom temperature of the tank of 105°C to obtain a light yellow transparent liquid, namely substance distillate. The biochar is pulverized and passed through a 80-100 mesh sieve to prepare charcoal powder. Immerse 1 part of carbon powder in 5 parts of biomass distillate according to the ratio of 1:5 by weight, stir and mix well, remove and air-dry naturally to about 15-20% water content, and prepare modified tobacco stem biochar .

Embodiment 3

[0071] The production technology of embodiment 3 modified biochar special fertilizer for flue-cured tobacco

[0072] 41 kg of ammonium nitrate (containing N46%), superphosphate (containing P 2 o 5 16%) 100 kg, super phosphoric acid (containing P 2 o 5 76%) 111 kg, potassium nitrate (containing N15%, K 2 O46%) 304 kg, 334 kg of modified tobacco stem biochar particles (preferably 80-100 mesh), 20 kg of nitrogen-fixing agent for decomposing phosphorus and potassium, 20 kg of magnesium sulfate (containing 29% of magnesium), borax (containing 11% of boron) 5 kg, 5 kg of zinc sulfate (containing 20%-23% zinc), 5 kg of ferrous sulfate (containing 20% ​​iron), 5 kg of ammonium molybdate (containing 54% molybdenum), 50 kg of binder, mixed with ZLC -300 type mixer and KP-300 type organic fertilizer granulator for pressure granulation, and other types of mixer and granulator can also be used for mixed granulation to make a modified fertilizer with a total nutrient content of 30% (6-1...

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Abstract

The invention relates to a fertilizer special for modified charcoal flue-cured tobacco. The fertilizer comprises modified tobacco stem charcoal particles, solubilizing phosphorus and a solubilizing potassium nitrogen fixation agent, ammonium nitrate, calcium superphosphate, hyper phosphoric acid, potassium nitrate, and magnesium sulfate, and further comprises borax, zinc sulfate, ferrous sulfate and ammonium molybdate. The fertilizer special for the granular charcoal-based flue-cured tobacco is prepared by adopting modified tobacco stem charcoal particles which are rich in carbon micropores and stronger in adsorption performance, compounding with the modified tobacco stem charcoal particles with nitrogen, phosphorus, potassium and other nutrient elements required by flue-cured tobacco growth and development and adopting bentonite or clay as an adhering agent. The fertilizer is simple in preparation process, economic and environmental friendly, capable of effectively supplying the demand of nutrient elements in the whole growth period of the flue-cured tobacco through once application, high in fertilizer utilization rate, and beneficial to large-scale popularization and application in the production of the flue-cured tobacco; and the fertilization cost and the energy consumption are reduced.

Description

technical field [0001] The invention relates to the field of agricultural chemistry, in particular to a modified biochar special fertilizer for flue-cured tobacco and a preparation method thereof. Background technique [0002] There are many kinds of tobacco, mainly including flue-cured tobacco, air-cured tobacco, burley tobacco, cigar tobacco, yellow flower tobacco, oriental tobacco, etc., which have their own characteristics of fertilizer requirements, and different types of tobacco often require different fertilizer rules. Therefore, corresponding regulations are formulated for different types of tobacco. Scientific and reasonable fertilization is the basic premise and fundamental material guarantee for achieving the goal of suitable and high-quality tobacco production. [0003] Flue-cured tobacco originates in the United States and is the main raw material for producing cigarettes all over the world, and its output accounts for more than 40% of the global tobacco total. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 孟军兰宇陈温福
Owner SHENYANG AGRI UNIV
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