CN112250523A - Composite microbial organic fertilizer and preparation process thereof - Google Patents
Composite microbial organic fertilizer and preparation process thereof Download PDFInfo
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- CN112250523A CN112250523A CN202011183111.2A CN202011183111A CN112250523A CN 112250523 A CN112250523 A CN 112250523A CN 202011183111 A CN202011183111 A CN 202011183111A CN 112250523 A CN112250523 A CN 112250523A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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Abstract
The invention discloses a compound microbial organic fertilizer and a preparation process thereof, wherein the compound microbial organic fertilizer comprises the following raw materials in parts by weight: 10-12 parts of oil cake, 10-20 parts of straw, 10-20 parts of plant ash, 10-16 parts of humic acid, 12-16 parts of bacillus cereus, 10-12 parts of bacillus subtilis, 12-14 parts of rhizopus oryzae, 15-30 parts of urea, 10-20 parts of organic auxiliary materials and 8-12 parts of trace element additives. According to the compound microorganism organic fertilizer and the preparation process thereof, the bacillus cereus, the bacillus subtilis and the rhizopus oryzae are compounded to obtain the compound microorganism liquid, wherein the bacillus cereus can generate antibacterial substances, inhibit the propagation of harmful microorganisms, degrade nutrient components in soil and improve the ecological environment, and the compound microorganism liquid is added into the organic fertilizer, so that the composting efficiency of the fertilizer can be effectively improved, the decomposition degree of the organic fertilizer is accelerated, and the quality of a compost product is improved.
Description
Technical Field
The invention relates to the technical field of organic fertilizers, in particular to a compound microorganism organic fertilizer and a preparation process thereof.
Background
Along with the development of pollution-free, green and organic agriculture, the organic fertilizer produced by microbial fermentation is a new trend, and the organic fertilizer is rich in organic matters and nutrient substances required by crop growth, can provide nutrients required by crop growth, improve soil, improve crop quality, increase crop yield, maintain soil fertility, improve fertilizer utilization rate and reduce production cost. The microbial fertilizer is a fertilizer product containing specific active microbes, and is characterized by that it utilizes the life activity of microbes to convert the inert nitrogen in the air into ionic nitrogen which can be directly absorbed by crops, and can change the indissolvable inorganic matter in the soil, such as calcium phosphate, etc. into soluble inorganic matter so as to increase the contents of effective nitrogen, effective phosphorus and effective potassium in the soil, and can attain the effect of raising disease-resisting capacity of crops and improving physical and chemical properties of soil by secreting the substances promoting plant growth.
Referring to Chinese patent publication No. CN105001021A, a complete composite microbial organic fertilizer and a preparation process thereof are provided, which is composed of the following raw materials in parts by weight: 40-60 parts of bacillus, 4-6 parts of actinomycetes and 30-50 parts of chemical fertilizer; the organic fertilizer is added into a chemical fertilizer by adopting bacillus and actinomycetes in a compounding way, has the characteristics of improving soil and the quick-acting function of inorganic nutrients, increases effective nutrients, oxygen, phosphorus, potassium and organic matters in the soil, and simultaneously can enhance the disease resistance, drought resistance and low temperature resistance of crops, loosen the soil, eliminate hardening, condition acid and alkali, repair the soil, degrade residues, purify the field, improve the fertilizer efficiency and reduce the cost; defend the disaster, drought and waterlogging keep the income; promoting metabolism such as prematurity and upgrading quality; however, the compound microorganism in the scheme has certain use defects after being added into a chemical fertilizer: the method comprises the steps of slow composting efficiency of the fertilizer, low decomposition degree and low quality of compost products, and in order to solve the problems, the technical personnel in the field provide a compound microorganism organic fertilizer and a preparation process thereof.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a compound microorganism organic fertilizer and a preparation process thereof, which solves the problems that the compound microorganism in the scheme of the patent publication No. CN105001021A has certain use defects after being added into a chemical fertilizer: including the problems of slow composting efficiency, low degree of decomposition and low quality of compost products.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a composite microbial organic fertilizer comprises the following raw materials in parts by weight: 10-12 parts of oil cake, 10-20 parts of straw, 10-20 parts of plant ash, 10-16 parts of humic acid, 12-16 parts of bacillus cereus, 10-12 parts of bacillus subtilis, 12-14 parts of rhizopus oryzae, 15-30 parts of urea, 10-20 parts of organic auxiliary materials and 8-12 parts of trace element additives;
the compound microbial organic fertilizer is produced by the following method:
adding 10-12 parts of oil cake, 10-20 parts of straw and 10-20 parts of plant ash into an agricultural pulverizer to perform material pulverizing treatment, then sieving the pulverized material by using a 120-mesh sieve, pouring the sieved material into a mixing container, adding 10-20 parts of organic auxiliary materials into the mixing container, and mixing and stirring the materials in the mixing container by using a mechanical stirring device to obtain an organic mixture;
respectively inoculating 12-16 parts of bacillus cereus, 10-12 parts of bacillus subtilis and 12-14 parts of rhizopus oryzae in an LB (lysogeny broth) culture medium, performing shake culture at 37 ℃ for 24-48 hours to respectively obtain bacillus cereus seed liquid, bacillus subtilis seed liquid and rhizopus oryzae seed liquid, and performing isometric mixed fermentation on the bacillus cereus seed liquid, the bacillus subtilis seed liquid and the rhizopus oryzae seed liquid to obtain a composite microbial liquid;
adding 15-30 parts of urea into the organic mixture, adjusting the carbon-nitrogen ratio of the organic mixture, inoculating 10-16 parts of composite microbial liquid and humic acid into the organic mixture, wherein the inoculation amount of the composite microbial liquid in the organic mixture is 3% -5%, uniformly stirring the mixture, feeding the mixture into a fermentation tank, stacking the mixture into a 1.5-meter stack in the fermentation tank, and fermenting at the fermentation temperature of 40-50 ℃ for 14 days to obtain wet materials of the organic fertilizer;
and step four, putting wet materials of the organic fertilizer into a dry-wet separator for treatment, crushing and drying the dry materials, adding 8-12 parts of trace element additive into the crushed and dried materials, and uniformly stirring and granulating the materials to obtain the compound microbial organic fertilizer.
Preferably, the organic auxiliary materials are one or a combination of two of potassium fulvate, diatomite, furfural residue and bentonite.
Preferably, the microelement additive comprises silicon, nitrogen, phosphorus and potassium according to a mass ratio of 7:7:3: 3.
Preferably, in the third step, the carbon-nitrogen ratio of the organic mixture is adjusted to be 20:1 by adding urea.
Preferably, in the third step, the compost is turned once every 48 hours during the fermentation of the mixture, and after the compost is turned twice, the compost is turned once every 24 hours.
Preferably, the preparation process of the compound microbial organic fertilizer specifically comprises the following steps:
adding 10-12 parts of oil cake, 10-20 parts of straw and 10-20 parts of plant ash into an agricultural pulverizer to perform material pulverizing treatment, then sieving the pulverized material by using a 120-mesh sieve, pouring the sieved material into a mixing container, adding 10-20 parts of organic auxiliary materials into the mixing container, and mixing and stirring the materials in the mixing container by using a mechanical stirring device to obtain an organic mixture;
respectively inoculating 12-16 parts of bacillus cereus, 10-12 parts of bacillus subtilis and 12-14 parts of rhizopus oryzae in an LB (lysogeny broth) culture medium, performing shake culture at 37 ℃ for 24-48 hours to respectively obtain bacillus cereus seed liquid, bacillus subtilis seed liquid and rhizopus oryzae seed liquid, and performing isometric mixed fermentation on the bacillus cereus seed liquid, the bacillus subtilis seed liquid and the rhizopus oryzae seed liquid to obtain a composite microbial liquid;
adding 15-30 parts of urea into the organic mixture, adjusting the carbon-nitrogen ratio of the organic mixture, inoculating 10-16 parts of composite microbial liquid and humic acid into the organic mixture, wherein the inoculation amount of the composite microbial liquid in the organic mixture is 3% -5%, uniformly stirring the mixture, feeding the mixture into a fermentation tank, stacking the mixture into a 1.5-meter stack in the fermentation tank, and fermenting at the fermentation temperature of 40-50 ℃ for 14 days to obtain wet materials of the organic fertilizer;
and step four, putting wet materials of the organic fertilizer into a dry-wet separator for treatment, crushing and drying the dry materials, adding 8-12 parts of trace element additive into the crushed and dried materials, and uniformly stirring and granulating the materials to obtain the compound microbial organic fertilizer.
(III) advantageous effects
The invention provides a compound microbial organic fertilizer and a preparation process thereof. Compared with the prior art, the method has the following beneficial effects:
the composite microbial organic fertilizer and the preparation process thereof are characterized in that 12-16 parts of bacillus cereus, 10-12 parts of bacillus subtilis and 12-14 parts of rhizopus oryzae are respectively inoculated in an LB culture medium, shaking culture is carried out for 24-48 hours at the temperature of 37 ℃ to respectively obtain bacillus cereus seed liquid, bacillus subtilis seed liquid and rhizopus oryzae seed liquid, then the bacillus cereus seed liquid, the bacillus subtilis seed liquid and the rhizopus oryzae seed liquid are subjected to mixed fermentation with equal volume to obtain composite microbial liquid, 15-30 parts of urea is added into the organic mixture, the carbon-nitrogen ratio of the organic mixture is adjusted, then 10-16 parts of the composite microbial liquid and humic acid are inoculated into the organic mixture, the inoculation amount of the composite microbial liquid in the organic mixture is 3-5%, then the mixture is uniformly stirred, then the mixture is sent into a fermentation tank, the mixture is piled into a 1.5 m material pile in the fermentation tank for fermentation, fermenting at 40-50 deg.c for 14 days to obtain wet organic fertilizer, treating the wet organic fertilizer in a wet-dry separator, crushing and drying the dried material, adding trace element additive 8-12 weight portions, mixing and pelletizing to obtain composite microbial organic fertilizer, compounding Bacillus cereus, Bacillus subtilis and Rhizopus oryzae to obtain composite microbial liquid, which can produce antibacterial matter to inhibit propagation of harmful microbe, degrade nutrients in soil and improve ecological environment, and has plant disease inhibiting capacity and bacteriostasis capacity, and Rhizopus oryzae capable of secreting amylase, saccharifying enzyme, acid protease, alcoholizing enzyme, lactic acid, succinic acid and other organic acids and alcohol, the compound microbial inoculum is added into the preparation of the organic fertilizer, so that the composting efficiency of the fertilizer can be effectively improved, the decomposition degree of the organic fertilizer can be accelerated in a short time, and the quality of compost products is improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A composite microbial organic fertilizer comprises the following raw materials in parts by weight: 10 parts of oil cake, 10 parts of straw, 10 parts of plant ash, 10 parts of humic acid, 12 parts of bacillus cereus, 10 parts of bacillus subtilis, 12 parts of rhizopus oryzae, 15 parts of urea, 10 parts of organic auxiliary materials and 8 parts of trace element additive;
the compound microbial organic fertilizer is produced by the following method:
adding 10 parts of oil cake, 10 parts of straw and 10 parts of plant ash into an agricultural pulverizer to perform material pulverizing treatment, then sieving the pulverized material by using a 120-mesh sieve, pouring the sieved material into a mixing container, adding 10 parts of organic auxiliary materials into the mixing container, and mixing and stirring the materials in the mixing container by using a mechanical stirring device to obtain an organic mixture;
respectively inoculating 12 parts of bacillus cereus, 10 parts of bacillus subtilis and 12 parts of rhizopus oryzae in an LB (lysogeny broth) culture medium, performing shake culture at 37 ℃ for 24 hours to respectively obtain bacillus cereus seed liquid, bacillus subtilis seed liquid and rhizopus oryzae seed liquid, and performing isometric mixed fermentation on the bacillus cereus seed liquid, the bacillus subtilis seed liquid and the rhizopus oryzae seed liquid to obtain a compound microbial liquid;
adding 15 parts of urea into the organic mixture, adjusting the carbon-nitrogen ratio of the organic mixture, inoculating 10 parts of composite microbial liquid and humic acid into the organic mixture, wherein the inoculation amount of the composite microbial liquid in the organic mixture is 3%, uniformly stirring the mixture, feeding the mixture into a fermentation tank, piling the mixture into a 1.5-meter pile in the fermentation tank, and fermenting at the fermentation temperature of 40 ℃ for 14 days to obtain wet materials of the organic fertilizer;
and step four, putting wet materials of the organic fertilizer into a dry-wet separator for treatment, crushing and drying the dry materials, adding 8 parts of trace element additive into the crushed and dried materials, and uniformly stirring and granulating the materials to obtain the compound microbial organic fertilizer.
Example 2
A composite microbial organic fertilizer comprises the following raw materials in parts by weight: 12 parts of oil cake, 20 parts of straw, 20 parts of plant ash, 16 parts of humic acid, 16 parts of bacillus cereus, 12 parts of bacillus subtilis, 14 parts of rhizopus oryzae, 30 parts of urea, 20 parts of organic auxiliary materials and 12 parts of trace element additives;
the compound microbial organic fertilizer is produced by the following method:
adding 12 parts of oil cake, 20 parts of straw and 20 parts of plant ash into an agricultural pulverizer to perform material pulverizing treatment, then sieving the pulverized material by using a 120-mesh sieve, pouring the sieved material into a mixing container, adding 20 parts of organic auxiliary materials into the mixing container, and mixing and stirring the materials in the mixing container by using a mechanical stirring device to obtain an organic mixture;
respectively inoculating 16 parts of bacillus cereus, 12 parts of bacillus subtilis and 14 parts of rhizopus oryzae in an LB culture medium, carrying out shake culture at 37 ℃ for 48 hours to respectively obtain bacillus cereus seed liquid, bacillus subtilis seed liquid and rhizopus oryzae seed liquid, and then carrying out isometric mixed fermentation on the bacillus cereus seed liquid, the bacillus subtilis seed liquid and the rhizopus oryzae seed liquid to obtain composite microbial liquid;
adding 30 parts of urea into the organic mixture, adjusting the carbon-nitrogen ratio of the organic mixture, inoculating 16 parts of composite microbial liquid and 16 parts of humic acid into the organic mixture, wherein the inoculation amount of the composite microbial liquid in the organic mixture is 5%, uniformly stirring the mixture, feeding the mixture into a fermentation tank, piling the mixture into a 1.5-meter pile in the fermentation tank, and fermenting at the fermentation temperature of 50 ℃ for 14 days to obtain wet materials of the organic fertilizer;
and step four, putting wet materials of the organic fertilizer into a dry-wet separator for treatment, crushing and drying the dry materials, adding 12 parts of trace element additive into the crushed and dried materials, and uniformly stirring and granulating the materials to obtain the compound microbial organic fertilizer.
Example 3
A composite microbial organic fertilizer comprises the following raw materials in parts by weight: 11 parts of oil cake, 15 parts of straw, 15 parts of plant ash, 13 parts of humic acid, 14 parts of bacillus cereus, 11 parts of bacillus subtilis, 13 parts of rhizopus oryzae, 22 parts of urea, 15 parts of organic auxiliary materials and 10 parts of trace element additives;
the compound microbial organic fertilizer is produced by the following method:
adding 11 parts of oil cake, 15 parts of straw and 15 parts of plant ash into an agricultural pulverizer to perform material pulverizing treatment, then sieving the pulverized material by using a 120-mesh sieve, pouring the sieved material into a mixing container, adding 15 parts of organic auxiliary materials into the mixing container, and mixing and stirring the materials in the mixing container by using a mechanical stirring device to obtain an organic mixture;
respectively inoculating 14 parts of bacillus cereus, 11 parts of bacillus subtilis and 13 parts of rhizopus oryzae in an LB (lysogeny broth) culture medium, performing shake culture at 37 ℃ for 36 hours to respectively obtain bacillus cereus seed liquid, bacillus subtilis seed liquid and rhizopus oryzae seed liquid, and performing isometric mixed fermentation on the bacillus cereus seed liquid, the bacillus cereus seed liquid and the rhizopus oryzae seed liquid to obtain a compound microbial liquid;
adding 22 parts of urea into the organic mixture, adjusting the carbon-nitrogen ratio of the organic mixture, inoculating 13 parts of composite microbial liquid and 13 parts of humic acid into the organic mixture, wherein the inoculation amount of the composite microbial liquid in the organic mixture is 4%, uniformly stirring the mixture, feeding the mixture into a fermentation tank, piling the mixture into a 1.5-meter pile in the fermentation tank, and fermenting at the fermentation temperature of 45 ℃ for 14 days to obtain wet materials of the organic fertilizer;
and step four, putting wet materials of the organic fertilizer into a dry-wet separator for treatment, crushing and drying the dry materials, adding 10 parts of trace element additive into the crushed and dried materials, and uniformly stirring and granulating the materials to obtain the compound microbial organic fertilizer.
The organic auxiliary materials are one or a combination of two of potassium fulvate, diatomite, furfural residue and bentonite.
The microelement additive comprises silicon, nitrogen, phosphorus and potassium according to the mass ratio of 7:7:3: 3.
In the third step, the carbon-nitrogen ratio of the organic mixture is adjusted to be 20:1 by adding urea.
And in the third step, turning the compost once every 48 hours during the fermentation of the mixture, and turning the compost once every 24 hours after turning the compost twice.
A preparation process of a composite microbial organic fertilizer specifically comprises the following steps:
adding 10-12 parts of oil cake, 10-20 parts of straw and 10-20 parts of plant ash into an agricultural pulverizer to perform material pulverizing treatment, then sieving the pulverized material by using a 120-mesh sieve, pouring the sieved material into a mixing container, adding 10-20 parts of organic auxiliary materials into the mixing container, and mixing and stirring the materials in the mixing container by using a mechanical stirring device to obtain an organic mixture;
respectively inoculating 12-16 parts of bacillus cereus, 10-12 parts of bacillus subtilis and 12-14 parts of rhizopus oryzae in an LB (lysogeny broth) culture medium, performing shake culture at 37 ℃ for 24-48 hours to respectively obtain bacillus cereus seed liquid, bacillus subtilis seed liquid and rhizopus oryzae seed liquid, and performing isometric mixed fermentation on the bacillus cereus seed liquid, the bacillus subtilis seed liquid and the rhizopus oryzae seed liquid to obtain a composite microbial liquid;
adding 15-30 parts of urea into the organic mixture, adjusting the carbon-nitrogen ratio of the organic mixture, inoculating 10-16 parts of composite microbial liquid and humic acid into the organic mixture, wherein the inoculation amount of the composite microbial liquid in the organic mixture is 3% -5%, uniformly stirring the mixture, feeding the mixture into a fermentation tank, stacking the mixture into a 1.5-meter stack in the fermentation tank, and fermenting at the fermentation temperature of 40-50 ℃ for 14 days to obtain wet materials of the organic fertilizer;
and step four, putting wet materials of the organic fertilizer into a dry-wet separator for treatment, crushing and drying the dry materials, adding 8-12 parts of trace element additive into the crushed and dried materials, and uniformly stirring and granulating the materials to obtain the compound microbial organic fertilizer.
And those not described in detail in this specification are well within the skill of those in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A compound microorganism organic fertilizer is characterized in that: the feed comprises the following raw materials in parts by weight: 10-12 parts of oil cake, 10-20 parts of straw, 10-20 parts of plant ash, 10-16 parts of humic acid, 12-16 parts of bacillus cereus, 10-12 parts of bacillus subtilis, 12-14 parts of rhizopus oryzae, 15-30 parts of urea, 10-20 parts of organic auxiliary materials and 8-12 parts of trace element additives;
the compound microbial organic fertilizer is produced by the following method:
adding 10-12 parts of oil cake, 10-20 parts of straw and 10-20 parts of plant ash into an agricultural pulverizer to perform material pulverizing treatment, then sieving the pulverized material by using a 120-mesh sieve, pouring the sieved material into a mixing container, adding 10-20 parts of organic auxiliary materials into the mixing container, and mixing and stirring the materials in the mixing container by using a mechanical stirring device to obtain an organic mixture;
respectively inoculating 12-16 parts of bacillus cereus, 10-12 parts of bacillus subtilis and 12-14 parts of rhizopus oryzae in an LB (lysogeny broth) culture medium, performing shake culture at 37 ℃ for 24-48 hours to respectively obtain bacillus cereus seed liquid, bacillus subtilis seed liquid and rhizopus oryzae seed liquid, and performing isometric mixed fermentation on the bacillus cereus seed liquid, the bacillus subtilis seed liquid and the rhizopus oryzae seed liquid to obtain a composite microbial liquid;
adding 15-30 parts of urea into the organic mixture, adjusting the carbon-nitrogen ratio of the organic mixture, inoculating 10-16 parts of composite microbial liquid and humic acid into the organic mixture, wherein the inoculation amount of the composite microbial liquid in the organic mixture is 3% -5%, uniformly stirring the mixture, feeding the mixture into a fermentation tank, stacking the mixture into a 1.5-meter stack in the fermentation tank, and fermenting at the fermentation temperature of 40-50 ℃ for 14 days to obtain wet materials of the organic fertilizer;
and step four, putting wet materials of the organic fertilizer into a dry-wet separator for treatment, crushing and drying the dry materials, adding 8-12 parts of trace element additive into the crushed and dried materials, and uniformly stirring and granulating the materials to obtain the compound microbial organic fertilizer.
2. The compound microbial organic fertilizer of claim 1, wherein: the organic auxiliary materials are one or a combination of two of potassium fulvate, diatomite, furfural residue and bentonite.
3. The compound microbial organic fertilizer of claim 1, wherein: the microelement additive comprises silicon, nitrogen, phosphorus and potassium according to a mass ratio of 7:7:3: 3.
4. The compound microbial organic fertilizer of claim 1, wherein: in the third step, the carbon-nitrogen ratio of the organic mixture is adjusted to be 20:1 by adding urea.
5. The compound microbial organic fertilizer of claim 1, wherein: and in the third step, turning the compost once every 48 hours during the fermentation of the mixture, and turning the compost once every 24 hours after turning the compost twice.
6. The process for preparing a composite microbial organic fertilizer according to any one of claims 1 to 5, wherein: the method specifically comprises the following steps:
adding 10-12 parts of oil cake, 10-20 parts of straw and 10-20 parts of plant ash into an agricultural pulverizer to perform material pulverizing treatment, then sieving the pulverized material by using a 120-mesh sieve, pouring the sieved material into a mixing container, adding 10-20 parts of organic auxiliary materials into the mixing container, and mixing and stirring the materials in the mixing container by using a mechanical stirring device to obtain an organic mixture;
respectively inoculating 12-16 parts of bacillus cereus, 10-12 parts of bacillus subtilis and 12-14 parts of rhizopus oryzae in an LB (lysogeny broth) culture medium, performing shake culture at 37 ℃ for 24-48 hours to respectively obtain bacillus cereus seed liquid, bacillus subtilis seed liquid and rhizopus oryzae seed liquid, and performing isometric mixed fermentation on the bacillus cereus seed liquid, the bacillus subtilis seed liquid and the rhizopus oryzae seed liquid to obtain a composite microbial liquid;
adding 15-30 parts of urea into the organic mixture, adjusting the carbon-nitrogen ratio of the organic mixture, inoculating 10-16 parts of composite microbial liquid and humic acid into the organic mixture, wherein the inoculation amount of the composite microbial liquid in the organic mixture is 3% -5%, uniformly stirring the mixture, feeding the mixture into a fermentation tank, stacking the mixture into a 1.5-meter stack in the fermentation tank, and fermenting at the fermentation temperature of 40-50 ℃ for 14 days to obtain wet materials of the organic fertilizer;
and step four, putting wet materials of the organic fertilizer into a dry-wet separator for treatment, crushing and drying the dry materials, adding 8-12 parts of trace element additive into the crushed and dried materials, and uniformly stirring and granulating the materials to obtain the compound microbial organic fertilizer.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115152569A (en) * | 2022-08-19 | 2022-10-11 | 湖南省棉花科学研究所 | High-yield cultivation method for high-quality cotton |
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