阅读说明：本技术 还田助腐生物有机肥及其加工方法 (Returning-to-field corrosion-aiding biological organic fertilizer and processing method thereof ) 是由 黄光华 于 2020-07-29 设计创作，主要内容包括：本发明提供了一种还田助腐生物有机肥及其加工方法,所述生物有机肥包括：有机肥基质、草木灰、酵母发酵液、膨润土、硫酸铵、过磷酸钙、微生物增活剂及菌剂。本发明通过提供一种还田助腐生物有机肥,解决了传统自然秸秆腐化腐化率低的技术问题。(The invention provides a returning-to-field corrosion-aiding bio-organic fertilizer and a processing method thereof, wherein the bio-organic fertilizer comprises the following components: organic fertilizer matrix, plant ash, yeast fermentation liquor, bentonite, ammonium sulfate, calcium superphosphate, microorganism activating agent and microbial inoculum. The invention provides a returning-to-field decomposition-assisting biological organic fertilizer, and solves the technical problem of low decomposition rate of traditional natural straws.)

1. The field returning and decay assisting biological organic fertilizer is characterized by comprising the following components: organic fertilizer matrix, plant ash, yeast fermentation liquor, bentonite, ammonium sulfate, calcium superphosphate, microorganism activating agent and microbial inoculum.

2. The biological organic fertilizer returning to field and corrosion-aiding, as claimed in claim 1, wherein the biological organic fertilizer comprises the following components in parts by weight:

20-25 parts of an organic fertilizer matrix;

7.5-12 parts of plant ash;

3.5-6.5 parts of yeast fermentation waste liquid concentrated solution;

2.5-5.5 parts of bentonite;

0.5-2.5 parts of ammonium sulfate;

1.5-4.5 parts of calcium superphosphate;

2.0-5.0 parts of a microorganism activating agent;

0.1-0.4 part of microbial inoculum.

3. The returning-to-field corrosion-assisted bio-organic fertilizer of claim 2, wherein the organic fertilizer matrix is prepared from the following components in parts by weight of 40-60: mixing 60-40 of crushed rice hulls with yeast fermentation waste liquid concentrated solution, and composting in a natural open system to obtain the fertilizer; and/or the presence of a gas in the gas,

the organic fertilizer matrix is prepared from the following components in parts by weight: mixing 60-40 of crushed straws with yeast fermentation waste liquor concentrated solution, and composting in a natural open system to obtain the fertilizer; and/or the presence of a gas in the gas,

the organic fertilizer matrix is prepared from the following components in parts by weight: and mixing 60-40 of the crushed wood chips with the yeast fermentation waste liquid concentrated solution, and composting in a natural open system to obtain the fertilizer.

4. The returning-to-field decay-assisting bio-organic fertilizer of claim 2, wherein the microbial inoculum is one or a combination of an aspergillus niger microbial inoculum, a rhizopus variabilis microbial inoculum or a streptomyces levorotatory bacteria microbial inoculum.

5. The field-returning decay-assisting bio-organic fertilizer of claim 4, wherein the aspergillus niger and the hairy mycorrhiza fungi are both subjected to fermentation culture by adopting a fungus culture medium under the fungus culture condition; and/or the presence of a gas in the gas,

the streptomyces levosimonii is subjected to fermentation culture by adopting a actinomycete culture medium under the culture condition of actinomycetes.

6. The returning-to-field corrosion-aid bio-organic fertilizer as claimed in claim 4, wherein the microbial inoculum is prepared by mixing, size mixing and drying a microbial paste, a thermal protective agent and water in a weight ratio of 30-33: 33-36.

7. The field returning and decay aiding bio-organic fertilizer of claim 6, wherein the thermal protectant is maltodextrin.

8. The field-returning and decomposition-assisting bio-organic fertilizer as claimed in any one of claims 1 to 7, wherein the microorganism activating agent is one of corn steep liquor dry powder, corn protein powder, potato extract powder, peptone and yeast powder or a combination thereof.

9. A processing method of returning-to-field corrosion-assisted bio-organic fertilizer is characterized by comprising the following specific steps: firstly, uniformly mixing plant ash and yeast fermentation waste liquid concentrated solution to obtain solid powdery material; then, sequentially adding an organic fertilizer matrix, bentonite, ammonium sulfate, calcium superphosphate, a biological activating agent and a microbial inoculum, and uniformly mixing to obtain a mixed material; and finally, granulating, drying and screening the mixed materials to obtain the returning-to-field corrosion-assisted bio-organic fertilizer as claimed in any one of claims 1 to 8.

10. A processing method of returning-to-field corrosion-assisted bio-organic fertilizer is characterized by comprising the following specific steps: firstly, uniformly mixing plant ash and yeast fermentation waste liquid concentrated solution to obtain solid powdery material; then, sequentially adding an organic fertilizer matrix, bentonite, ammonium sulfate, calcium superphosphate and a biological activator, and uniformly mixing to obtain a mixed material; thirdly, granulating, drying and screening the mixed materials to obtain organic fertilizer particles; finally, coating a microbial inoculum on the surface of the organic fertilizer particles to obtain the returning-to-field decay-assisted bio-organic fertilizer as claimed in any one of claims 1 to 8.

Technical Field

The invention relates to the technical field of biological organic fertilizers, in particular to a returning-to-field corrosion-assisted biological organic fertilizer and a processing method thereof.

Background

6-8 hundred million tons of annual straws are produced in China, and account for 20% -30% of the total amount of the straws in the world, wherein the straws of wheat and corn are the main. With the rapid development of modern agriculture in China, the structures of rural domestic energy and livestock feed are fundamentally changed, and simultaneously, the problems of a large amount of excess straw resources and the like are brought. The effect of straw returning to the field on promoting soil fertility has been proved by agriculture developed countries such as Europe and America.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a returning-to-field corrosion-assisted bio-organic fertilizer and a processing method thereof, aiming at solving the technical problem of low corrosion rate in the traditional straw returning-to-field process in the related art.

The invention provides a returning-to-field corrosion-assisted bio-organic fertilizer, which comprises the following components: organic fertilizer matrix, plant ash, yeast fermentation liquor, bentonite, ammonium sulfate, calcium superphosphate, microorganism activating agent and microbial inoculum.

Optionally, the weight parts of the components of the bio-organic fertilizer are as follows:

20-25 parts of an organic fertilizer matrix;

7.5-12 parts of plant ash;

3.5-6.5 parts of yeast fermentation waste liquid concentrated solution;

2.5-5.5 parts of bentonite;

0.5-2.5 parts of ammonium sulfate;

1.5-4.5 parts of calcium superphosphate;

2.0-5.0 parts of a microorganism activating agent;

0.1-0.4 part of microbial inoculum.

Optionally, the organic fertilizer matrix is prepared from the following components in parts by weight of 40-60: mixing 60-40 of crushed rice hulls with yeast fermentation waste liquid concentrated solution, and composting in a natural open system to obtain the fertilizer; and/or the presence of a gas in the gas,

the organic fertilizer matrix is prepared from the following components in parts by weight: mixing 60-40 of crushed straws with yeast fermentation waste liquor concentrated solution, and composting in a natural open system to obtain the fertilizer; and/or the presence of a gas in the gas,

the organic fertilizer matrix is prepared from the following components in parts by weight: and mixing 60-40 of the crushed wood chips with the yeast fermentation waste liquid concentrated solution, and composting in a natural open system to obtain the fertilizer.

Optionally, the microbial inoculum is one or a combination of aspergillus niger microbial inoculum, rhizopus variabilis microbial inoculum or streptomyces levogyration microbial inoculum.

Optionally, the aspergillus niger and the hairy fungi are both subjected to fermentation culture by adopting a fungus culture medium under a fungus culture condition; and/or the presence of a gas in the gas,

the streptomyces levosimonii is subjected to fermentation culture by adopting a actinomycete culture medium under the culture condition of actinomycetes.

Optionally, the microbial inoculum is prepared by mixing, size mixing and drying a microbial cream, a thermal protective agent and water in a weight ratio of 30-33: 33-36.

Optionally, the thermoprotectant is maltodextrin.

Optionally, the microorganism activating agent is one or a combination of corn steep liquor dry powder, corn protein powder, potato extract powder, peptone and yeast powder.

The invention also provides a processing method of the returning-to-field corrosion-assisted bio-organic fertilizer, which comprises the following specific steps: firstly, uniformly mixing plant ash and yeast fermentation waste liquid concentrated solution to obtain solid powdery material; then, sequentially adding an organic fertilizer matrix, bentonite, ammonium sulfate, calcium superphosphate, a biological activating agent and a microbial inoculum, and uniformly mixing to obtain a mixed material; and finally, granulating, drying and screening the mixed materials to obtain the returning-to-field corrosion-assisted bio-organic fertilizer.

The invention also provides a processing method of the returning-to-field corrosion-assisted bio-organic fertilizer, which comprises the following specific steps: firstly, uniformly mixing plant ash and yeast fermentation waste liquid concentrated solution to obtain solid powdery material; then, sequentially adding an organic fertilizer matrix, bentonite, ammonium sulfate, calcium superphosphate and a biological activator, and uniformly mixing to obtain a mixed material; thirdly, granulating, drying and screening the mixed materials to obtain organic fertilizer particles; and finally, coating a microbial inoculum on the surface of the organic fertilizer particles to obtain the returning-to-field corrosion-assisted bio-organic fertilizer.

Compared with the prior art, the invention has the following beneficial effects:

in the technology, the returning-to-field corrosion-promoting bio-organic fertilizer is provided, so that on one hand, the bio-organic fertilizer can be used for replacing a common organic fertilizer as a soil base fertilizer, and no additional agricultural operation is added; on the other hand, the lignin structure wrapped on the outer layer of the straws is damaged through the biological organic fertilizer, the crude fibers on the cut sections of the straws are decomposed, and the straws of the previous crops are completely decomposed in the next planting period after being completely returned to the field under the synergistic action of soil microorganisms so as to be converted into the soil fertility of the current season; meanwhile, the biological organic fertilizer can improve the activity of soil microorganisms, is beneficial to colonization of functional microorganisms in the biological organic fertilizer in the soil, and improves the fertility degree of the soil.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the technical solutions of the present invention are further described below with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The invention provides a returning-to-field corrosion-assisted bio-organic fertilizer, which comprises the following components: organic fertilizer matrix, plant ash, yeast fermentation liquor, bentonite, ammonium sulfate, calcium superphosphate, microorganism activating agent and microbial inoculum.

Optionally, the weight parts of the components of the bio-organic fertilizer are as follows:

20-25 parts of an organic fertilizer matrix;

7.5-12 parts of plant ash;

3.5-6.5 parts of yeast fermentation waste liquid concentrated solution;

2.5-5.5 parts of bentonite;

0.5-2.5 parts of ammonium sulfate;

1.5-4.5 parts of calcium superphosphate;

2.0-5.0 parts of a microorganism activating agent;

0.1-0.4 part of microbial inoculum;

the water content is less than or equal to 25 percent.

Optionally, the weight parts of the components of the bio-organic fertilizer are as follows:

21-23 parts of an organic fertilizer matrix;

9-11 parts of plant ash;

4.0-5.0 parts of yeast fermentation waste liquid concentrated solution;

3.5-4.5 parts of bentonite;

1.0-1.5 parts of ammonium sulfate;

2.0-3.5 parts of calcium superphosphate;

2.5-4.0 parts of a microorganism activating agent;

0.2-0.3 part of microbial inoculum;

the water content is less than or equal to 12 percent.

Optionally, the organic fertilizer matrix is prepared from the following components in parts by weight of 40-60: mixing 60-40 of crushed rice hulls with yeast fermentation waste liquid concentrated solution, composting for 25-45 days in a natural open system, and decomposing to obtain the fertilizer; and/or the presence of a gas in the gas,

the organic fertilizer matrix is prepared from the following components in parts by weight: mixing 60-40 of crushed straws with yeast fermentation waste liquor concentrated solution, composting for 25-45 days in a natural open system, and decomposing to obtain the fertilizer; and/or the presence of a gas in the gas,

the organic fertilizer matrix is prepared from the following components in parts by weight: and mixing 60-40 of the crushed wood chips with the yeast fermentation waste liquid concentrated solution, composting for 25-45 days in a natural open system, and decomposing to obtain the wood chip fertilizer.

Optionally, the microbial inoculum is one or a combination of aspergillus niger microbial inoculum, rhizopus variabilis microbial inoculum or streptomyces levogyration microbial inoculum.

In this embodiment, the bacterial strain of the microbial inoculum is a bacterial strain which is preserved in the China general microbiological culture Collection center (CGMCC) and has the function of decomposing and utilizing cellulose and/or lignin forming straws. The method comprises the following steps: aspergillus niger (Aspergillus niger, accession number CGMCC No.11113), Rhizomucor variabilis (Rhizomucor variabilis, accession number CGMCC No.11114), Streptomyces levogyration (Streptomyces drozdowiczii, accession number CGMCC No. 13409). The microbial inoculum is obtained by fermenting and culturing strains, centrifuging, mixing with a microbial thermal protective agent, and spray drying.

Optionally, the aspergillus niger and the hairy fungi are both subjected to fermentation culture by adopting a fungus culture medium under a fungus culture condition; and/or the presence of a gas in the gas,

the streptomyces levosimonii is subjected to fermentation culture by adopting a actinomycete culture medium under the culture condition of actinomycetes.

Specifically, the aspergillus niger and the hairy mycorrhiza fungi are cultured in a culture medium with 20g/L of glucose, 5g/L of corn steep liquor dry powder and 6.5 of pH, the culture temperature is 28-30 ℃, the stirring speed is 150-350 r/min, and the ventilation volume of compressed sterile air is 0.5-0.8: 1M³1000L, and the culture time is 36-48 hours. Culturing the streptomyces levorotatory strain in a culture medium with 5g/L glucose, 15g/L corn steep liquor dry powder and pH of 7, wherein the culture temperature is 35-37 ℃, the stirring speed is 150-350 r/min, and the ventilation volume of compressed sterile air is 0.5-0.8: 1M³1000L, and the culture time is 36-48 hours.

Optionally, the microbial inoculum is prepared by mixing, size mixing and drying a microbial cream, a thermal protective agent and water in a weight ratio of 30-33: 33-36.

Optionally, the thermoprotectant is maltodextrin.

Specifically, the fermented bacteria liquid is centrifuged by a tubular centrifuge or a disc centrifuge to collect microbial thalli so as to obtain microbial bacterial paste; then, sequentially taking corresponding parts of the bacterial cream, maltodextrin and water according to the weight ratio of 30-33: 33-36, uniformly mixing and mixing; and (3) drying the slurry by a spray dryer (the air inlet temperature is 180-200 ℃, the air outlet temperature is 65-80 ℃) to obtain a dry powder microbial inoculum.

Optionally, the microbial inoculum is a combined microbial inoculum of aspergillus niger and streptomyces levorotatory bacteria in a mass ratio of 1: 1.

Optionally, the microorganism activating agent is one or a combination of corn steep liquor dry powder, corn protein powder, potato extract powder, peptone and yeast powder. In the embodiment, in order to save cost, corn steep liquor dry powder or corn protein powder is selected as a microorganism activating agent.

The invention also provides a processing method of the returning-to-field corrosion-assisted bio-organic fertilizer, which comprises the following specific steps: firstly, uniformly mixing plant ash and yeast fermentation waste liquid concentrated solution to obtain solid powdery material; then, sequentially adding an organic fertilizer matrix, bentonite, ammonium sulfate, calcium superphosphate, a biological activating agent and a microbial inoculum, and uniformly mixing to obtain a mixed material; and finally, granulating, drying and screening the mixed materials to obtain the returning-to-field corrosion-assisted bio-organic fertilizer.

The invention also provides a processing method of the returning-to-field corrosion-assisted bio-organic fertilizer, which comprises the following specific steps: firstly, uniformly mixing plant ash and yeast fermentation waste liquid concentrated solution to obtain solid powdery material; then, sequentially adding an organic fertilizer matrix, bentonite, ammonium sulfate, calcium superphosphate and a biological activator, and uniformly mixing to obtain a mixed material; thirdly, granulating, drying and screening the mixed materials to obtain organic fertilizer particles; and finally, coating a microbial inoculum on the surface of the organic fertilizer particles to obtain the returning-to-field corrosion-assisted bio-organic fertilizer.

In order to more clearly illustrate the effect of the returning-to-field corrosion-promoting bio-organic fertilizer and the processing method thereof, the following example groups are selected for detailed explanation. It should be understood that the following examples are only used to illustrate the effect of the bio-organic fertilizer and the processing method thereof, and do not limit the components and ratio of the Chinese herbal medicine additive.