Coated granular microbial agent and production method thereof

A technology of microbial inoculum and microbial inoculum, which is applied in fertilizer mixtures, fixed on or in inorganic carriers, fertilization devices, etc., can solve problems such as inability to fertilize mechanically, reduce labor intensity, reduce use costs, and enhance fertilizer efficiency. Effect

Active Publication Date: 2013-02-13
北京世纪阿姆斯生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because lignite or weathered coal contains a large amount of humic acid, when it is mixed with urea and compound fertilizers and other chemical fertilizers, a chemical reaction occurs, crystallization water is precipitated, the mixed fertilizer is deliquescent, the particles are crushed, and it becomes slimy, which brings great harm to fertilization. A lot of trouble, especially not being able to fertilize mechanically

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Get 500 kilograms of adsorption carrier lignite powder, accounting for 70.92% of the total weight, get 35 kilograms of binder bentonite, accounting for 4.96% of the total weight, stir and mix under the action of a mixer, after mixing, get Bacillus subtills (Bacillus subtills). ) 120 kg of bacterial liquid (the number of viable bacteria is more than 3 billion / ml), accounting for 17.02% of the total weight, stirring and adsorbing in a mixer, and then crushing after the adsorption and stirring are uniform, and the crushed material is transported to the disc granulator for Add water to granulate, and the particle size is controlled within the range of 2-4 mm.

[0028] The granulated granular material is transported to the dryer and dried with hot flue gas until the moisture content is less than 25%; the dried granular material is transported to the sieving machine for screening (the finished granules sieved by the sieving machine are The particle size is 1.75-4.75mm), the s...

example 2

[0031] Take 800 kilograms of weathered pulverized coal as an adsorption carrier, accounting for 56.34% of the total weight, and take 460 kilograms of bentonite, accounting for 32.39% of the total weight, stir and mix under the action of a mixer, and after mixing evenly, take Bacillus subtills and Bacillus mucilaginosus Krassilnikow (Bacillus mucilaginosus Krassilnikow) mixed bacterial liquid (the number of viable bacteria is more than 3 billion / ml) 130 kg, accounting for 9.15% of the total weight, stirred and adsorbed in a mixer, and then crushed after the adsorption and stirring were uniform. The material is transported to the disc granulator for water granulation, and the particle size is controlled within the range of 2-4 mm.

[0032] The granulated granular material is transported to the dryer and dried with hot flue gas until the moisture content is less than 25%; the dried granular material is transported to the screening machine for screening (the particle size of the fi...

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Abstract

The invention relates to a coated granular microbial agent and a production method thereof. The coated granular microbial agent is prepared by the following raw materials by weight percent in a mixing way: 7-20 percent of a microbial liquid, 50-85 percent of an adsorption carrier, 0-40 percent of a binding agent and 1-10 percent of a coating agent. The production method comprises the following steps: firstly weighing the raw materials with corresponding percent, mixing the adsorption carrier with the binding agent, adding the microbial liquid to adsorb and then crushing, performing granulation on the crushed material, drying the material after granulation and screening to obtain the finished product granular material through a screening machine, performing aeration-cooling on the finished product granular material and conveying the material after cooling to a coating machine and adding the coating agent for coating, and performing aeration-cooling and drying on the material after coating. The coated granular microbial agent has the benefits of no chemical reaction, no air slaking, no crushing for granules, no formation like sticky mud, good fluidity, high strength, soil adjustment, soil improvement and fertilizer effect enhancement when being mixed with chemical fertilizers such as urea, compound fertilizer and the like for use, and reduces the use cost.

Description

technical field [0001] The invention relates to a coated particle microbial inoculant and a production method thereof. Background technique [0002] At present, the production method of granular microbial inoculum on the market is: the bacterial liquid is adsorbed by an adsorption carrier and then prepared by granulation, drying, cooling and screening. Since lignite or weathered coal powder contains high organic matter and humic acid, the price is cheap. The market is easy to buy, and the preservation of microbial cells is very good. Compared with other adsorption carriers, it has absolute advantages. Therefore, lignite powder or weathered coal powder is basically used as the adsorption carrier in production. Since lignite or weathered coal contains a large amount of humic acid, when it is mixed with chemical fertilizers such as urea and compound fertilizer, a chemical reaction occurs, crystallization water is precipitated, the mixed fertilizer is deliquesced, the particles ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N11/14C05G3/00
Inventor 罗永江
Owner 北京世纪阿姆斯生物技术有限公司
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