Preparation method of straw fertilizer

A straw fertilizer and straw technology, applied in the field of straw fertilizer preparation, can solve the problems of complicated process, low straw utilization rate, high cost, etc., and achieve the effects of increasing economic income, increasing charcoal output, and reducing output

Inactive Publication Date: 2017-09-26
刘少标
1 Cites 2 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0002] my country is a large agricultural country. The survey results show that the theoretical resources of straw in my country are 840 million tons per year, and about 700 million tons of straw can be collected. The main varieties of straw are rice, wheat, corn, etc. In recent years, the comprehensive utilization rate of straw has been improved. It can only reach about 70%, and the straw is simply proc...
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Method used

(3) stalk dry distillation: it is 6~8% that fermented stalk is dried to water content, be pulverized to 3~5mm, add pyrolysis device, be heated to 300 ℃, heating rate is 1.2 ℃/min, and the time is 5 Hours, increase the output of charcoal and wood vinegar, reduce the output of wood tar, after pyrolysis and carbonization, reduce the toxicity of wood vinegar, avoid separation and purification, directly mix the products after pyrolysis and carbonization, save a lot of production costs, natural cooling , mix all the materials to get dry distillation straw;
(3) stalk dry distillation: it is 6~8% that fermented stalk is dried to water content, is pulverized to 3~5mm, adds pyrolysis device, is heated to 310 ℃, and heating rate is 1.3 ℃/min, and the time is 6 Hours, increase the output of charcoal and wood vinegar, reduce the output of wood tar, after pyrolysis and carbonization, reduce the toxicity of wood vinegar, avoid separation and purification, directly mix the products after pyrolysis and carbonization, save a lot of production ...
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Abstract

The invention mainly relates to the technical field of agricultural product and by product processing, and discloses a preparation method of a straw fertilizer. The method comprises the following steps: collecting and pulverizing straw; fermenting the straw; carrying out dry distillation on the straw and preparing the fertilizer. The method is simple, and fermentation treatment and dry distillation treatment are combined, and nutrient components in the straw are fully utilized, so that the utilization rate is up to 94.2 percent; wastes are turned into treasures, so that economic incoming of farmers is increased; after the straw is pulverized, EM bacteria culture liquid is added, after long-term fermentation, macro-molecular nutrient components in the straw are decomposed, phenolic compounds are degraded, the content of wood tar is reduced, and the release of the nutrient components into soaking liquid is promoted; moreover, a condition is mild, and energy conservation is achieved.

Application Domain

Biological combination treatmentFertilizer mixtures

Technology Topic

TarFertilizer +7

Examples

  • Experimental program(3)
  • Comparison scheme(5)

Example Embodiment

[0015] Example 1
[0016] A preparation method of straw fertilizer includes the following steps:
[0017] (1) Collecting and crushing: the straw is smashed together, the length is 2~3cm, and placed in the fermentation tank to get the crushed straw;
[0018] (2) Straw fermentation: After expanding the culture of EM bacteria, the number of viable bacteria is 10 8 ~10 9 CFU/ml, add the culture solution to the fermentation tank, add 2 times the weight of the crushed straw, mix well, and ferment at a constant temperature of 26°C for 8 days to decompose the macromolecular nutrients in the straw, degrade phenols, and reduce wood tar The content of, promote the release of nutrients in the soaking liquid, and the conditions are mild, save energy, filter, and obtain fermentation broth and fermented straw;
[0019] (3) Dry distillation of straw: Dry the fermented straw to a moisture content of 6-8%, pulverize it to 3~5mm, add it to a pyrolysis device, heat it to 300℃, the temperature rise rate is 1.2℃/min, and the time is 5 hours. The output of charcoal and wood vinegar can reduce the output of wood tar. After the pyrolysis carbonization is completed, the toxicity of the wood vinegar can be reduced, and the separation and purification can be avoided. The products after the pyrolysis and carbonization are directly mixed to save a lot of production costs. Mix the materials to get dry distillation straw;
[0020] (4) Fertilizer preparation: Add dry distillation straw to the fermentation broth obtained in step (2), mix well, leave it to ferment at room temperature for 3 days, and further decompose harmful components in dry distillation materials, reduce the content of wood tar, and can be directly applied as fertilizer. Dry until the moisture content is 34-40% to obtain straw fertilizer.
[0021] The preparation method of the straw fertilizer includes the obtained straw fertilizer.
[0022] The method of using the straw fertilizer, when used as the base fertilizer, mix the straw fertilizer and the decomposed animal manure of the same weight as the straw fertilizer, and then apply the fertilizer. The fertilizer amount of the straw fertilizer is 300~500kg/mu. When used as a top dressing, the amount of fertilizer is conventional The amount of compound fertilizer applied is 1.5~2 times, and the straw fertilizer is sprayed directly on the soil.

Example Embodiment

[0023] Example 2
[0024] A preparation method of straw fertilizer includes the following steps:
[0025] (1) Collecting and crushing: the straw is smashed together, the length is 2~3cm, and placed in the fermentation tank to get the crushed straw;
[0026] (2) Straw fermentation: After expanding the culture of EM bacteria, the number of viable bacteria is 10 8 ~10 9 CFU/ml, add the culture solution to the fermentation tank, add 2 times the weight of the crushed straw, mix well, and ferment at a constant temperature of 27°C for 9 days to decompose the macromolecular nutrients in the straw, degrade phenols, and reduce wood tar The content of, promote the release of nutrients in the soaking liquid, and the conditions are mild, save energy, filter, and obtain fermentation broth and fermented straw;
[0027] (3) Dry distillation of straw: Dry the fermented straw to a moisture content of 6-8%, pulverize it to 3~5mm, add a pyrolysis device, heat to 310℃, the temperature rise rate is 1.3℃/min, the time is 6 hours, increase The output of charcoal and wood vinegar can reduce the output of wood tar. After the pyrolysis carbonization is completed, the toxicity of the wood vinegar can be reduced, and the separation and purification can be avoided. The products after the pyrolysis and carbonization are directly mixed to save a lot of production costs. Mix the materials to get dry distillation straw;
[0028] (4) Fertilizer preparation: Add dry distillation straw to the fermentation broth obtained in step (2), mix well, leave it to ferment at room temperature for 3 days, and further decompose harmful components in dry distillation materials, reduce the content of wood tar, and can be directly applied as fertilizer. Dry until the moisture content is 34-40% to obtain straw fertilizer.
[0029] The preparation method of the straw fertilizer includes the obtained straw fertilizer.
[0030] The method of using the straw fertilizer, when used as the base fertilizer, mix the straw fertilizer and the decomposed animal manure of the same weight as the straw fertilizer, and then apply the fertilizer. The fertilizer amount of the straw fertilizer is 300~500kg/mu. When used as a top dressing, the amount of fertilizer is conventional The amount of compound fertilizer applied is 1.5~2 times, and the straw fertilizer is sprayed directly on the soil.

Example Embodiment

[0031] Example 3
[0032] A preparation method of straw fertilizer includes the following steps:
[0033] (1) Collecting and crushing: the straw is smashed together, the length is 2~3cm, and placed in the fermentation tank to get the crushed straw;
[0034] (2) Straw fermentation: After expanding the culture of EM bacteria, the number of viable bacteria is 10 8 ~10 9 CFU/ml, add the culture solution to the fermentation tank, add 3 times the weight of the crushed straw, mix well, and ferment at a constant temperature of 28°C for 10 days to decompose the macromolecular nutrients in the straw, degrade phenolics, and reduce wood tar The content of, promote the release of nutrients in the soaking liquid, and the conditions are mild, save energy, filter, and obtain fermentation broth and fermented straw;
[0035] (3) Dry distillation of straw: Dry the fermented straw to a moisture content of 6-8%, pulverize it to 3~5mm, add it to a pyrolysis device, heat it to 320℃, the heating rate is 1.4℃/min, the time is 6 hours, increase The output of charcoal and wood vinegar can reduce the output of wood tar. After the pyrolysis carbonization is completed, the toxicity of the wood vinegar can be reduced, and the separation and purification can be avoided. The products after the pyrolysis and carbonization are directly mixed to save a lot of production costs. Mix the materials to get dry distillation straw;
[0036] (4) Fertilizer preparation: add dry distillation straw to the fermentation broth obtained in step (2), mix well, leave it to ferment at room temperature for 4 days, and further decompose harmful components in dry distillation materials, reduce the content of wood tar, and can be directly applied as fertilizer. Dry until the moisture content is 34-40% to obtain straw fertilizer.
[0037] The preparation method of the straw fertilizer includes the obtained straw fertilizer.
[0038] The method of using the straw fertilizer, when used as the base fertilizer, mix the straw fertilizer and the decomposed animal manure of the same weight as the straw fertilizer, and then apply the fertilizer. The fertilizer amount of the straw fertilizer is 300~500kg/mu. When used as a top dressing, the amount of fertilizer is conventional The amount of compound fertilizer applied is 1.5~2 times, and the straw fertilizer is sprayed directly on the soil.

PUM

PropertyMeasurementUnit
Length2.0 ~ 3.0cm

Description & Claims & Application Information

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