Slow-release microbial organic fertilizer and preparation method thereof

An organic fertilizer and microorganism technology, which is applied in the field of slow-release microbial organic fertilizer and its preparation, can solve the problems that crop growth cannot be promoted for a long time, the action period of nutrients is long, the fertilizer efficiency is reduced, etc., and the activity maintenance time can be prolonged. , the effect of increasing oxygen content and improving utilization

Pending Publication Date: 2022-04-15
春华秋实科技集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] With the development of agriculture, the demand for fertilizers is increasing. At present, the application of chemical fertilizers is increasing. The existing chemical fertilizers can be quick-acting. After application, the growth of crops can be significantly improved, and chemical fertilizers are water-soluble. Well, with the erosion of soil and water, it is easy to cause the loss of fertilizer efficiency, which cannot promote the growth of crops for a long time. It is necessary to apply fertilizers frequently in different periods of plant growth, resulting in waste of fertilizer resources, and also caused a series of environmental problems.
[0003] Microbial organic fertilizer is obtained by decomposing nutrients in organic materials by specific microorganisms or other identified two or more microorganisms that are not antagonistic to each other, so that the nutrients in organic materials can be fully released and provide sufficient nutrients for plants. Compared with chemical fertilizers that are easily soluble in water, the existing microbial organic fertilizers have a longer action cycle of nutrients, and can also improve soil physical and chemical properties, promote plant growth, and prevent and control diseases; however, pure microbial organic fertilizers still exist The loss of nutrients causes the problem of waste of resources. At the same time, it also has the problem of short storage time and long-term storage will cause the problem of reduced fertilizer efficiency.

Method used

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  • Slow-release microbial organic fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preparation of modified medical stone

[0030] (1) Medical stone pre-treatment: put 200-300 mesh medical stone powder in hydrochloric acid solution, 300-400W ultrasonic treatment for 30-60min, wash until the washing liquid is neutral and dry, and then obtain activated medical stone;

[0031] (2) Get 10kg of activated medical stone powder and disperse it in an aqueous solution, add ammonia water dropwise to adjust the pH of the system to be 8-9, and add 4kg of gamma-glycidyl etheroxypropyltrimethoxysilane to it under stirring conditions Ethanol solution (the weight ratio of γ-glycidyl etheroxypropyltrimethoxysilane to ethanol is 1:1), stirred and reacted at 50°C for 3 hours, filtered, washed and dried; the modified medical stone can be obtained;

Embodiment 2

[0033] Preparation of microbial fermentation broth

[0034] Inoculate methylotrophic Bacillus, Bacillus subtilis, and Bacillus lateralis into LB liquid medium, culture at 28-32°C for 24-48 hours to obtain activated seed liquid; take 2kg of methylotrophic Bacillus seeds Liquid, 1kg Bacillus subtilis seed liquid, 1kg Bacillus lateral sporosum seed liquid are mixed and then transferred to the fermenter, after carrying out fermentation and cultivation for 24-48h, the composite microbial fermentation liquid 1 is obtained; the inoculation amount of the seed liquid is 5% of the total volume of the tank; the number of effective viable bacteria in the fermentation broth is not less than 5×10 9 cfu / g;

[0035] Inoculate methylotrophic Bacillus, Bacillus subtilis, and Bacillus lateralis into LB liquid medium respectively, and culture them at 28-32°C for 24-48 hours to obtain activated seed liquid; take 3kg of methylotrophic Bacillus seeds Liquid, 1kg Bacillus subtilis seed liquid, 1kg ...

Embodiment 3

[0038] A slow-release microbial organic fertilizer, the slow-release microbial organic fertilizer includes a core layer and a coating layer; the core layer is composed of fermented fertilizer and urea-formaldehyde; the fermented fertilizer is betel nut Slag powder, mulberry leaf powder, animal excrement, fish scale powder and modified medical stone powder are obtained through the fermentation of compound microorganisms; the coating layer is composed of konjac powder, sodium alginate and boric acid; the compound microorganism is composed of methyl nutrition Bacillus type, Bacillus subtilis, Bacillus lateral spores.

[0039] Its preparation method specifically comprises the following steps:

[0040] (1) Preparation of fermented fertilizer

[0041] 1.1) Take 15kg of betel nut residue powder and 8kg of mulberry leaf powder and 24kg of animal feces, mix and stir evenly, and then place it under sunlight for 24-48 hours to obtain a mixed organic material;

[0042] 1.2) Add 2.2kg of...

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Abstract

The invention discloses a slow release type microbial organic fertilizer, which comprises a core layer and a coating layer, the core layer is formed by compounding a fermented fertilizer and urea formaldehyde; the fermented fertilizer is obtained by fermenting betel nut residue powder, mulberry leaf powder, animal waste, fish scale powder and modified medical stone powder through compound microorganisms; the coating layer is prepared from konjaku flour, sodium alginate and boric acid; the compound microorganism is prepared from bacillus methylotrophicus, bacillus subtilis and bacillus laterosporus; according to the fertilizer disclosed by the invention, the storage period of the bio-organic fertilizer is prolonged by adopting a biopolymer coating form, the activity maintenance time of microorganisms in the bio-organic fertilizer is prolonged, the storage period of the fertilizer is remarkably prolonged, the slow-release fertilizer is obtained by adopting a coating form, and nutritional ingredients in the fertilizer are slowly released, so that the fertilizer has a good application prospect. Nutrients required by growth of plants in different stages can be met, waste of the fertilizer is avoided, and the utilization rate of the fertilizer is increased.

Description

technical field [0001] The invention belongs to the field of microbial organic fertilizers, in particular to a slow-release microbial organic fertilizer and a preparation method thereof. Background technique [0002] With the development of agriculture, the demand for fertilizers is increasing. At present, the application of chemical fertilizers is increasing. The existing chemical fertilizers can be quick-acting. After application, the growth of crops can be significantly improved, and chemical fertilizers are water-soluble. Well, with soil erosion, it is easy to cause the loss of fertilizer efficiency, which cannot promote the growth of crops for a long time. It is necessary to apply fertilizer frequently in different periods of plant growth, resulting in waste of fertilizer resources and a series of environmental problems. [0003] Microbial organic fertilizer is obtained by decomposing nutrients in organic materials by specific microorganisms or other identified two or m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/40C05G3/60C05G5/30C05F17/20
CPCC05C9/02C05F17/20C05G3/40C05G3/60C05G5/37C05D9/00C05D9/02C05F1/002C05F3/00C05F5/002C05F11/00C05F11/08Y02W30/40
Inventor 祝春华祝博伟马佳慧岳增启张华林
Owner 春华秋实科技集团有限公司
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