CN114195594A - Production process of tobacco stem organic fertilizer - Google Patents
Production process of tobacco stem organic fertilizer Download PDFInfo
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- CN114195594A CN114195594A CN202111655022.8A CN202111655022A CN114195594A CN 114195594 A CN114195594 A CN 114195594A CN 202111655022 A CN202111655022 A CN 202111655022A CN 114195594 A CN114195594 A CN 114195594A
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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
- C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/20—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation using specific microorganisms or substances, e.g. enzymes, for activating or stimulating the treatment
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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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- 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
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Tropical Medicine & Parasitology (AREA)
- Engineering & Computer Science (AREA)
- Plant Pathology (AREA)
- Biotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention provides a production process of a tobacco stem organic fertilizer, which comprises the following steps: crushing tobacco stems; putting into a stirring kettle, adding the acidic pretreatment solution into the stirring kettle, stirring and standing to obtain a pretreatment material; mixing the pretreated material with auxiliary materials and zymophyte; feeding into a fermentation tank for fermentation to obtain a fermentation product, adding humic acid, a phosphorus-potassium fertilizer and a calcium fertilizer, and fully mixing; putting the mixture into a granulator and a rounding machine for granulation and rounding processing; putting the mixture into a dryer for drying, and then waiting for natural cooling to obtain an organic fertilizer product. According to the invention, the acidic pretreatment liquid is used for pretreating the tobacco stem raw material to obtain the nicotine salt, and the nicotine salt is not easy to volatilize and oxidize, so that the nicotine is better stored in the tobacco stem.
Description
Technical Field
The invention relates to the technical field of organic fertilizer production, in particular to a production process of a tobacco stem organic fertilizer.
Background
With the chemical fertilizers and pesticides used in agricultural production for a long time, the phenomenon of pesticide residue in soil generally exists, the problems of land hardening, pest breeding and the like can occur due to the use of a large amount of chemical fertilizers in farmlands, and certain pollution is also generated to the environment, so that the soil quality of the farmlands needs to be adjusted by using the bio-organic fertilizers. The existing biomass fertilizer is mainly derived from plants or animals, not only provides comprehensive nutrition supply for plant growth, but also can loosen soil, improve the water storage capacity of the soil, increase the fertilizer efficiency of the soil, improve the activity of the soil and promote the growth of crops. The tobacco leaf and stem fertilizer is one of biological organic fertilizers, and compared with other biological organic fertilizers, the tobacco leaf and stem fertilizer also has the effects of sterilization and disinsection, so that the use of partial pesticides is avoided, and the tobacco leaf and stem fertilizer is more green and environment-friendly.
The main components of the tobacco stem with the effects of killing bacteria and insects are Nicotine (Nicotine), which is commonly known as Nicotine and is an organic compound, has a chemical formula of C10H14N2, is alkaloid existing in solanaceae plants (solanum) and is also an important component of tobacco. The nicotine is colorless liquid at normal temperature, has certain volatility in the air, and can be naturally oxidized with oxygen in the air, so that the nicotine contained in the tobacco stem organic fertilizer can be volatilized and oxidized when the tobacco stem organic fertilizer is produced, the nicotine contained in the finally obtained tobacco stem organic fertilizer is greatly reduced, the effects of sterilization and disinsection are reduced, and the required functions cannot be obtained. Therefore, a new tobacco stem organic fertilizer production process is needed, and nicotine in the tobacco stem organic fertilizer can be better preserved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a production process of a tobacco stem organic fertilizer, which solves the problems that nicotine contained in the tobacco stem organic fertilizer is reduced and the sterilization and disinsection functions are influenced due to volatilization and oxidation of the nicotine in the prior art.
According to the embodiment of the invention, the production process of the tobacco stem organic fertilizer comprises the following steps:
step 1: crushing tobacco stems, and stirring to obtain crushed materials with uniformly distributed particle sizes;
step 2: putting the crushed materials into a stirring kettle, adding an acidic pretreatment solution into the stirring kettle, stirring for 2-5 hours in a closed environment, and standing for 8-14 hours to obtain a pretreatment material;
and step 3: mixing the pretreatment material with auxiliary materials and zymophyte, feeding the mixture into a fermentation tank for fermentation at the fermentation temperature of 28-55 ℃, and fermenting in the fermentation tank for not less than 14 days to obtain a fermentation product;
and 4, step 4: adding humic acid, phosphorus-potassium fertilizer and calcium fertilizer into the fermentation product, and fully mixing;
and 5: putting the product obtained in the step 4 into a granulator and a rounding machine in sequence, and performing granulation and rounding processing;
step 6: and (3) putting the product obtained in the step (5) into a dryer, drying for 20min at the temperature of 60-80 ℃, and then waiting for natural cooling to obtain an organic fertilizer product.
Preferably, the acidic pre-treatment solution used in step 2 comprises one of citric acid, tartaric acid, glycolic acid or benzoic acid.
Preferably, the mass ratio of the crushed aggregates to the acidic pretreatment liquid in the step 2 is 1: (0.1-0.2).
Preferably, the auxiliary materials in the step 3 comprise one or a mixture of two of straws and bran coats, and the mass of the auxiliary materials is 10-25% of that of the pretreatment materials.
Preferably, the zymocyte in the step 3 comprises bacillus subtilis and fusobacterium nucleatum, wherein the mass fraction of the bacillus subtilis is 65-90%, and the mass fraction of the fusobacterium nucleatum is 10-35%.
Preferably, in the step 4, the phosphorus-potassium fertilizer is potassium phosphate, and the calcium fertilizer is calcium carbonate.
Preferably, the mass ratio of the fermentation product, the humic acid, the phosphorus-potassium fertilizer and the calcium fertilizer in the step 4 is 1: (0.05-0.1): (0.01-0.03): (0.005-0.01).
The technical principle of the invention is as follows: according to the invention, the acidic pretreatment solution is used for pretreating the tobacco stem raw material, and the weakly acidic organic acid reacts with nicotine to obtain nicotine salt, wherein the nicotine salt has stable physicochemical properties and is free from volatilization and oxidation, so that nicotine is better stored in the tobacco stem; in addition, because the obtained nicotine salt is a weak acid salt, after the organic fertilizer is put into a farmland, the nicotine salt is contacted and dissolved with water in soil, and then slowly and naturally decomposed into organic acid and nicotine in a natural slightly acidic environment, so that the nicotine is released to obtain the functions of sterilization and disinsection.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, salts are produced by using an acid-base neutralization principle and through organic acid and nicotine, so that the salts are better stored in tobacco stems by using the characteristic of stable property of the nicotine salts, the content of nicotine in organic fertilizers of the tobacco stems is increased, and the sterilization and disinsection effects are enhanced;
2. the nicotine contained in the invention exists in the form of weak acid salt, can be slowly decomposed in soil, and can not be quickly dissipated due to groundwater loss, evaporation and the like, so that the nicotine can be kept for a long time, and the sterilization and insect prevention effects can be maintained for a long time.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples.
The embodiment of the invention adopts a field test mode, the test field is selected from a farmland in an economic development area of Zhijiang city of Yichang city, Hubei province, the soil is common black soil, the ground is smooth, and the fertility is moderate. In the invention, six test fields are selected, namely 5 examples and 1 comparative example, the size of each test field is 20m by 9m, and 30 local citrus fruits are uniformly planted in each test field according to the interval of 2 by 3. Local citrus trees of substantially the same age and height were transplanted into the test fields at 2 months, grown for 5 months under the same planting conditions, and then tested by starting fertilization at 7 months.
Example 1:
in the embodiment, the tobacco stem organic fertilizer is produced by the following steps:
step 1: crushing tobacco stems, and stirring to obtain crushed materials with uniformly distributed particle sizes;
step 2: throwing the crushed aggregates into a stirring kettle, adding the acidic pretreatment liquid into the stirring kettle, wherein the mass ratio of the crushed aggregates to the acidic pretreatment liquid is 1: 0.1, stirring the acidic pretreatment solution which is citric acid in a closed environment for 2 hours, and standing for 8 hours to obtain a pretreatment material;
and step 3: mixing the pretreatment material with an auxiliary material and fermentation bacteria, wherein the auxiliary material is straw, the mass of the auxiliary material is 10% of that of the pretreatment material, and the fermentation bacteria comprise bacillus subtilis and fusobacterium nucleatum, wherein the mass fraction of the bacillus subtilis is 65% and the mass fraction of the fusobacterium nucleatum is 35%, feeding the mixture into a fermentation tank for fermentation at the fermentation temperature of 28 ℃, and fermenting in the fermentation tank for not less than 14 days to obtain a fermentation product;
and 4, step 4: humic acid, a phosphorus-potassium fertilizer and a calcium fertilizer are added into the fermentation product, wherein the phosphorus-potassium fertilizer is potassium phosphate, and the calcium fertilizer is calcium carbonate. The mass ratio of the fermentation product to the humic acid to the phosphorus-potassium fertilizer to the calcium fertilizer is 1: 0.05: 0.01: 0.005, and mixing fully;
and 5: putting the product obtained in the step 4 into a granulator and a rounding machine in sequence, and performing granulation and rounding processing;
step 6: and (5) putting the product obtained in the step (5) into a dryer, drying for 20min at the temperature of 60 ℃, and then waiting for natural cooling to obtain an organic fertilizer product.
The tobacco stem organic fertilizer prepared in the embodiment is applied by 10kg of parts per tree, and then secondary application is not carried out until the citrus fruits are grown in 11 months, and the citrus fruits are all picked after 12 months of maturity.
Example 2:
in the embodiment, the tobacco stem organic fertilizer is produced by the following steps:
step 1: crushing tobacco stems, and stirring to obtain crushed materials with uniformly distributed particle sizes;
step 2: throwing the crushed aggregates into a stirring kettle, adding the acidic pretreatment liquid into the stirring kettle, wherein the mass ratio of the crushed aggregates to the acidic pretreatment liquid is 1: 0.12, stirring the acidic pretreatment solution which is tartaric acid for 3 hours in a closed environment, and standing for 9 hours to obtain a pretreatment material;
and step 3: mixing the pretreatment material with an auxiliary material and fermentation bacteria, wherein the auxiliary material is bran, the mass of the auxiliary material is 14% of that of the pretreatment material, and the fermentation bacteria comprise bacillus subtilis and fusobacterium nucleatum, wherein the mass fraction of the bacillus subtilis is 70% and the mass fraction of the fusobacterium nucleatum is 30%, feeding the mixture into a fermentation tank for fermentation at the fermentation temperature of 35 ℃, and fermenting in the fermentation tank for not less than 14 days to obtain a fermentation product;
and 4, step 4: humic acid, a phosphorus-potassium fertilizer and a calcium fertilizer are added into the fermentation product, wherein the phosphorus-potassium fertilizer is potassium phosphate, and the calcium fertilizer is calcium carbonate. The mass ratio of the fermentation product to the humic acid to the phosphorus-potassium fertilizer to the calcium fertilizer is 1: 0.06: 0.015: 0.006, and mixing thoroughly;
and 5: putting the product obtained in the step 4 into a granulator and a rounding machine in sequence, and performing granulation and rounding processing;
step 6: and (3) putting the product obtained in the step (5) into a dryer, drying for 20min at 65 ℃, and then waiting for natural cooling to obtain an organic fertilizer product.
The tobacco stem organic fertilizer prepared in the embodiment is applied by 10kg of parts per tree, and then secondary application is not carried out until the citrus fruits are grown in 11 months, and the citrus fruits are all picked after 12 months of maturity.
Example 3:
in the embodiment, the tobacco stem organic fertilizer is produced by the following steps:
step 1: crushing tobacco stems, and stirring to obtain crushed materials with uniformly distributed particle sizes;
step 2: throwing the crushed aggregates into a stirring kettle, adding the acidic pretreatment liquid into the stirring kettle, wherein the mass ratio of the crushed aggregates to the acidic pretreatment liquid is 1: 0.14, stirring the acidic pretreatment solution which is glycolic acid in a closed environment for 3 hours, and standing for 10 hours to obtain a pretreatment material;
and step 3: mixing the pretreatment material with auxiliary materials and fermentation bacteria, wherein the auxiliary materials are a mixture of straws and bran coats in a mass ratio of 1:1, the auxiliary materials account for 18% of the mass of the pretreatment material, and the fermentation bacteria comprise bacillus subtilis and fusobacterium nucleatum, wherein the mass fraction of the bacillus subtilis is 75% and the mass fraction of the fusobacterium nucleatum is 25%, feeding the mixture into a fermentation tank for fermentation at the fermentation temperature of 40 ℃, and fermenting in the fermentation tank for not less than 14 days to obtain a fermentation product;
and 4, step 4: humic acid, a phosphorus-potassium fertilizer and a calcium fertilizer are added into the fermentation product, wherein the phosphorus-potassium fertilizer is potassium phosphate, and the calcium fertilizer is calcium carbonate. The mass ratio of the fermentation product to the humic acid to the phosphorus-potassium fertilizer to the calcium fertilizer is 1: 0.08: 0.02: 0.008 and fully mixing;
and 5: putting the product obtained in the step 4 into a granulator and a rounding machine in sequence, and performing granulation and rounding processing;
step 6: and (5) putting the product obtained in the step (5) into a dryer, drying for 20min at 70 ℃, and then waiting for natural cooling to obtain an organic fertilizer product.
The tobacco stem organic fertilizer prepared in the embodiment is applied by 10kg of parts per tree, and then secondary application is not carried out until the citrus fruits are grown in 11 months, and the citrus fruits are all picked after 12 months of maturity.
Example 4:
in the embodiment, the tobacco stem organic fertilizer is produced by the following steps:
step 1: crushing tobacco stems, and stirring to obtain crushed materials with uniformly distributed particle sizes;
step 2: throwing the crushed aggregates into a stirring kettle, adding the acidic pretreatment liquid into the stirring kettle, wherein the mass ratio of the crushed aggregates to the acidic pretreatment liquid is 1: 0.18, stirring the acidic pretreatment solution which is benzoic acid in a closed environment for 4 hours, and standing for 12 hours to obtain a pretreatment material;
and step 3: mixing the pretreatment material with an auxiliary material and fermentation bacteria, wherein the auxiliary material is straw, the mass of the auxiliary material is 20% of that of the pretreatment material, and the fermentation bacteria comprise bacillus subtilis and fusobacterium nucleatum, wherein the mass fraction of the bacillus subtilis is 80% and the mass fraction of the fusobacterium nucleatum is 20%, feeding the mixture into a fermentation tank for fermentation at the fermentation temperature of 50 ℃, and fermenting in the fermentation tank for not less than 14 days to obtain a fermentation product;
and 4, step 4: humic acid, a phosphorus-potassium fertilizer and a calcium fertilizer are added into the fermentation product, wherein the phosphorus-potassium fertilizer is potassium phosphate, and the calcium fertilizer is calcium carbonate. The mass ratio of the fermentation product to the humic acid to the phosphorus-potassium fertilizer to the calcium fertilizer is 1: 0.09: 0.025: 0.009, and mixing thoroughly;
and 5: putting the product obtained in the step 4 into a granulator and a rounding machine in sequence, and performing granulation and rounding processing;
step 6: and (3) putting the product obtained in the step (5) into a dryer, drying for 20min at the temperature of 75 ℃, and then waiting for natural cooling to obtain an organic fertilizer product.
The tobacco stem organic fertilizer prepared in the embodiment is applied by 10kg of parts per tree, and then secondary application is not carried out until the citrus fruits are grown in 11 months, and the citrus fruits are all picked after 12 months of maturity.
Example 5:
in the embodiment, the tobacco stem organic fertilizer is produced by the following steps:
step 1: crushing tobacco stems, and stirring to obtain crushed materials with uniformly distributed particle sizes;
step 2: throwing the crushed aggregates into a stirring kettle, adding the acidic pretreatment liquid into the stirring kettle, wherein the mass ratio of the crushed aggregates to the acidic pretreatment liquid is 1: 0.2, the acidic pretreatment solution is a mixture of citric acid, tartaric acid, glycolic acid and benzoic acid in a mass ratio of 1:1:1: 1. Stirring for 5 hours in a closed environment, and standing for 14 hours to obtain a pretreatment material;
and step 3: mixing the pretreatment material with an auxiliary material and zymophyte, wherein the auxiliary material is bran, and the mass of the auxiliary material is 25% of that of the pretreatment material. The fermentation bacteria comprise bacillus subtilis and fusobacterium nucleatum, wherein the mass fraction of the bacillus subtilis is 90 percent, the mass fraction of the fusobacterium nucleatum is 10 percent, the bacillus subtilis and the fusobacterium nucleatum are fed into a fermentation tank for fermentation at the fermentation temperature of 55 ℃, and the fermentation is carried out in the fermentation tank for not less than 14 days, so as to obtain a fermentation product;
and 4, step 4: humic acid, a phosphorus-potassium fertilizer and a calcium fertilizer are added into the fermentation product, wherein the phosphorus-potassium fertilizer is potassium phosphate, and the calcium fertilizer is calcium carbonate. The mass ratio of the fermentation product to the humic acid to the phosphorus-potassium fertilizer to the calcium fertilizer is 1: 0.1: 0.03: 0.01, and fully mixing;
and 5: putting the product obtained in the step 4 into a granulator and a rounding machine in sequence, and performing granulation and rounding processing;
step 6: and (5) putting the product obtained in the step (5) into a dryer, drying for 20min at the temperature of 80 ℃, and then waiting for natural cooling to obtain an organic fertilizer product.
The tobacco stem organic fertilizer prepared in the embodiment is applied by 10kg of parts per tree, and then secondary application is not carried out until the citrus fruits are grown in 11 months, and the citrus fruits are all picked after 12 months of maturity.
Comparative example:
the method comprises the steps of applying 10kg of Fubang tobacco stem bio-organic fertilizer purchased from Angel yeast GmbH, fertilizing according to the weight of each tree, and then not applying the fertilizer for the second time until the citrus fruits are grown for 11 months, and picking all citrus fruits after 12 months of maturity.
The technical effect of the invention is illustrated by means of nicotine content in soil, pest number on citrus trees, and citrus yield, and the statistical results are shown in table 1.
TABLE 1
As can be seen from the table 1, the tobacco stem organic fertilizer produced by the invention is comprehensively superior to the existing products in soil content, insecticidal effect and yield per mu data.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (7)
1. The production process of the tobacco stem organic fertilizer is characterized by comprising the following steps of:
step 1: crushing tobacco stems, and stirring to obtain crushed materials with uniformly distributed particle sizes;
step 2: putting the crushed materials into a stirring kettle, adding an acidic pretreatment solution into the stirring kettle, stirring for 2-5 hours in a closed environment, and standing for 8-14 hours to obtain a pretreatment material;
and step 3: mixing the pretreatment material with auxiliary materials and zymophyte, feeding the mixture into a fermentation tank for fermentation at the fermentation temperature of 28-55 ℃, and fermenting in the fermentation tank for not less than 14 days to obtain a fermentation product;
and 4, step 4: adding humic acid, phosphorus-potassium fertilizer and calcium fertilizer into the fermentation product, and fully mixing;
and 5: putting the product obtained in the step 4 into a granulator and a rounding machine in sequence, and performing granulation and rounding processing;
step 6: and (3) putting the product obtained in the step (5) into a dryer, drying for 20min at the temperature of 60-80 ℃, and then waiting for natural cooling to obtain an organic fertilizer product.
2. The production process of the tobacco stem organic fertilizer as claimed in claim 1, wherein the production process comprises the following steps: the acidic pretreatment solution used in the step 2 comprises one of citric acid, tartaric acid, glycolic acid or benzoic acid.
3. The production process of the tobacco stem organic fertilizer as claimed in claim 1, wherein the production process comprises the following steps: the mass ratio of the crushed aggregates to the acidic pretreatment liquid in the step 2 is 1: (0.1-0.2).
4. The production process of the tobacco stem organic fertilizer as claimed in claim 1, wherein the production process comprises the following steps: and in the step 3, the auxiliary material comprises one or a mixture of two of straw and bran, and the mass of the auxiliary material is 10-25% of that of the pretreatment material.
5. The production process of the tobacco stem organic fertilizer as claimed in claim 1, wherein the production process comprises the following steps: the fermentation bacteria in the step 3 comprise bacillus subtilis and fusobacterium nucleatum, wherein the mass fraction of the bacillus subtilis is 65-90%, and the mass fraction of the fusobacterium nucleatum is 10-35%.
6. The production process of the tobacco stem organic fertilizer as claimed in claim 1, wherein the production process comprises the following steps: in the step 4, the phosphorus-potassium fertilizer is potassium phosphate, and the calcium fertilizer is calcium carbonate.
7. The production process of the tobacco stem organic fertilizer as claimed in claim 1, wherein the production process comprises the following steps: in the step 4, the mass ratio of the fermentation product to the humic acid to the phosphorus-potassium fertilizer to the calcium fertilizer is 1: (0.05-0.1): (0.01-0.03): (0.005-0.01).
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