CN112194538A - Gibberellin bacterial residue treatment method and liquid fertilizer containing gibberellin bacterial residue treatment product - Google Patents
Gibberellin bacterial residue treatment method and liquid fertilizer containing gibberellin bacterial residue treatment product Download PDFInfo
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- CN112194538A CN112194538A CN202011080597.7A CN202011080597A CN112194538A CN 112194538 A CN112194538 A CN 112194538A CN 202011080597 A CN202011080597 A CN 202011080597A CN 112194538 A CN112194538 A CN 112194538A
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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
- 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
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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Abstract
The invention belongs to the field of compound microbial fertilizers, and particularly relates to a gibberellin bacterial residue treatment method and a liquid fertilizer containing gibberellin bacterial residue treatment substances. The method adopts the microbial fermentation to treat the gibberellin membrane residual liquid, effectively degrades residual gibberellin, partially decomposes crude protein in the residual liquid into amino acid, polypeptide and other substances which are easily absorbed by plants by microorganisms, does not generate the conditions of root burning and seedling burning on crops, and improves the effectiveness of the fertilizer. The composite microbial fertilizer is prepared after microbial fermentation treatment, the discharge of gibberellin membrane residual liquid waste resources and environmental pollution caused by the discharge are solved, the waste materials can be changed into valuable materials when the fertilizer is prepared, higher economic value is brought, and the composite microbial fertilizer has greater social significance and economic significance.
Description
Technical Field
The invention belongs to the field of microorganisms, and particularly relates to a gibberellin fungi residue treatment method and a liquid fertilizer containing gibberellin fungi residue treatment substances.
Background
Gibberellin is a natural plant growth regulator, can promote and regulate various development processes such as seed germination, stem elongation, sex expression and fruit formation in the whole process of a plant growth cycle, is widely applied to agriculture, forestry, wine brewing industry and the like, and currently, a microbial fermentation method is commonly adopted in the industry to obtain gibberellin, gibberellin is inoculated into a culture medium to form solid-liquid mixed fermentation liquor after a fermentation cycle, and the fermentation liquor forms waste membrane residual liquid, namely gibberellin residue, after passing through a tubular membrane. The fresh membrane residual liquid is yellow viscous liquid in an initial state, and mainly comprises water, microbial mycelium, a culture medium which is not metabolized and utilized completely, inorganic salt and a small amount of gibberellin residue, wherein the dry matter content is about 10%, and the fresh membrane residual liquid is rich in crude protein, various amino acids, nucleic acid, lipids, major elements, trace elements and the like. The whole process does not add any toxic and harmful substances, so the membrane residual liquid is a good organic fertilizer source, but if the membrane residual liquid is directly used as a fertilizer to be applied to soil without decomposition treatment, the phenomenon of burning roots and seedlings can be caused, and the residual gibberellin can cause the excessive growth of crops to cause certain environmental pollution and economic loss.
The gibberellin membrane residual liquid belongs to waste resources, and random discharge can cause great influence on the environment. The membrane raffinate has high viscosity and high water content, is extremely easy to decay and deteriorate after being placed for a long time, and is difficult to separate water from conventional solid-liquid separation equipment such as a squeezer, a centrifuge and the like. The current common treatment modes for the gibberellin membrane residual liquid comprise: (1) burning and burying. A large amount of fuel is consumed by burning, and secondary pollution is caused by landfill. (2) Spray drying, while capable of thorough drying to form a dry spray powder, is expensive. The spray powder contains a certain amount of gibberellin residues, and the acceptance degree is not high even if the spray powder is processed to an organic fertilizer factory at a low price. (3) And (5) filtering by using a plate frame. Adding a proper amount of auxiliary agent into the membrane residual liquid, filtering by a plate frame to obtain a filter cake, crushing the filter cake to obtain filter residue, and finally obtaining the filter residue containing microbial mycelium, a culture medium which is not metabolized and utilized completely, inorganic salt and the like. The filter residue is generally treated at low price to an organic fertilizer factory for composting to prepare organic fertilizer, compound fertilizer, solid compound microbial fertilizer and the like.
CN201710022663.7 discloses a method for producing gibberellin GA3 by using gibberellic slag, wherein the problems of resource waste and environmental pollution caused by fungus slag discarding are solved.
CN202010070863.1 discloses a detoxification treatment method of gibberellin fermentation bacteria residues, which solves the problem that the gibberellin fermentation bacteria residues are difficult to treat by using a hydrothermal method to treat the gibberellin fermentation bacteria residues.
CN201911331327.6 discloses a compound bacterial fertilizer and a preparation method thereof, which comprises the following components in parts by weight: 100-120 parts of organic compound fertilizer, 80-100 parts of compound microbial inoculum fermentation product, 20-25 parts of compound traditional Chinese medicine extract and 8-15 parts of nutrient. Wherein gibberellin is used as a growth regulator.
CN201810017258.0 discloses a gibberellin bacteria residue compound microbial fertilizer and a preparation method thereof, the gibberellin bacteria residue is subjected to compost fermentation by adding auxiliary materials into solid gibberellin bacteria residue filtered by a plate frame, and the solid gibberellin bacteria residue is mixed with an inorganic fertilizer and a functional microbial agent after being thoroughly decomposed to prepare the gibberellin bacteria residue compound microbial fertilizer, but the acid or alkaline of the plate frame filter residue is strong, so that fermentation regulation and control are required, the utilization rate is low, and a large amount of overstock is easily caused. Meanwhile, the plate-frame filtration has various troubles such as environmental protection, cost and the like, and the gibberellin membrane residual liquid is not well utilized. Therefore, the treatment and utilization ways of the membrane residual liquid need to be widened, the resource utilization of the waste is realized, the nutrient components in the waste are reasonably utilized, and the additional value of the waste is increased.
At present, the waste mushroom dregs in the fermentation industry are treated by a microbial fermentation method, and CN201410426366.5, CN201610097783.9 and CN200810008003.4 respectively disclose that antibiotic mushroom dregs, erythromycin mushroom dregs and abamectin mushroom dregs are subjected to harmless treatment by adopting a mode of microbial liquid fermentation, but the waste mushroom dregs are not utilized as liquid fertilizers after the fermentation treatment and the fermentation treatment of the gibberellin mushroom dregs.
Disclosure of Invention
Aiming at the problems of environmental pollution, high cost, low utilization rate and the like of a gibberellin fungi residue treatment method in the prior art, the invention provides a gibberellin fungi residue treatment method and a liquid fertilizer containing gibberellin fungi residue treatment substances.
The present invention provides the following scheme:
a gibberellin fungus-producing slag treatment method comprises the following steps: transferring 50-80% (m/m) of gibberellin membrane residual liquid into a fermentation tank, adding 1-10% by mass of a carbon source and 20-40% by mass of water, stirring and mixing uniformly to obtain a bacteria residue water system, introducing steam for sterilization, then adding 1-5% by mass of microbial strains into the bacteria residue water system, keeping the temperature at 28-35 ℃, the pH value of the system at 5.0-6.5, the tank pressure at 0.02-0.07MPa, the air flow at 0.5-1vvm and the rotating speed at 100r/min, and fermenting for 72-120h to obtain gibberellin membrane residual liquid fermentation liquid.
Wherein the carbon source is one or more of molasses, brown sugar, glucose, sucrose, maltose, lactose, dextrin and starch.
The microbial strain is one or more of saccharomyces cerevisiae, baker's yeast, candida, bacillus subtilis, bacillus licheniformis, bacillus megaterium, bacillus mucilaginosus and bacillus amyloliquefaciens.
The invention also provides a liquid fertilizer containing the gibberellin fungi residue treatment product, which comprises 40-70% by mass of the gibberellin membrane residual liquid fermentation liquid prepared by the method, 10-30% by mass of an inorganic fertilizer, 1-10% by mass of biostimulant, 0.1-1% by mass of an auxiliary agent and the balance of water.
Wherein the inorganic fertilizer is one or more of nitrogen fertilizer (urea and ammonium sulfate), phosphate fertilizer (monoammonium phosphate and diammonium phosphate), potash fertilizer (monopotassium phosphate, potassium nitrate, potassium sulfate and potassium chloride), magnesium fertilizer (EDTA-Mg, magnesium sulfate, magnesium nitrate and magnesium chloride), calcium fertilizer (EDTA-Ca, calcium nitrate and calcium chloride) and trace element fertilizer.
The auxiliary agent is one or more of a thickening agent and an acid-base regulator.
Preferably, the thickening agent is xanthan gum, and the pH regulator is citric acid monohydrate and/or ethanolamine.
The biological stimulator is one or more of humic acid, amino acid and alginic acid.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
(1) the gibberellin membrane residual liquid is not subjected to plate-frame filtration or spray drying, but is prepared into the compound microbial fertilizer after being fermented by microorganisms, so that compared with the conventional treatment means, the novel process for treating the gibberellin membrane residual liquid in China is simpler, more convenient, more efficient and more environment-friendly, the problems of discharge of gibberellin membrane residual liquid waste resources and environmental pollution caused by the discharge are solved, the fertilizer prepared can be changed into valuables, higher economic value is brought, and the method has greater social significance and economic significance.
(2) The method adopts the microbial fermentation to treat the gibberellin membrane residual liquid, effectively degrades residual gibberellin, partially decomposes crude protein in the residual liquid into amino acid, polypeptide and other substances which are easily absorbed by plants by microorganisms, does not generate the conditions of root burning and seedling burning on crops, and improves the effectiveness of the fertilizer.
(3) The gibberellin film residual liquid fermentation liquor is compounded with large, medium and trace elements and biological stimulants to meet the NY/T798-2015 composite microbial fertilizer standard. The organic-inorganic-biological combination has the slow effect of organic matters, the quick effect of inorganic fertilizers and the synergism of microorganisms, has complementary advantages and is more comprehensive in nutrition.
Drawings
FIG. 1 is a flow chart of a production process for gibberellin fungi residue treatment and liquid fertilizer
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Example 1 (gibberellin slag treatment method):
the gibberellin fungi residue treatment method of the embodiment is as follows: transferring 80% (m/m) of gibberellin membrane raffinate to a fermentation tank, starting stirring, adding 5% by mass of glucose and 15% by mass of water, uniformly mixing to obtain a dreg water system, introducing steam for sterilization, inoculating 2% by mass of bread yeast liquid and 1% of bacillus amyloliquefaciens liquid, keeping the system pH at 28 ℃, keeping the system pH at 5.5, fermenting for 120 hours under the conditions that the tank pressure is 0.03mPa, the air flow is 1vvm and the rotating speed is 100r/min, and obtaining gibberellin membrane raffinate fermentation liquid. The effective viable count of the yeast is 2.5 multiplied by 108The number of effective viable bacteria of bacillus amyloliquefaciens is 1.1 multiplied by 108Piece/ml, GA30 ppm.
Example 2 (gibberellin slag treatment method):
the gibberellin fungi residue treatment method of the embodiment is as follows: transferring 70% (m/m) gibberellin membrane residual liquid into a fermentation tank, stirring, adding 4% by mass of molasses and 26% by mass of water, uniformly mixing to obtain a mushroom residue water system, introducing steam for sterilization, and inoculating 2% by mass of candida mycoides liquid and 1% by mass of bacillus subtilis liquidAnd (3) maintaining the temperature at 30 ℃, keeping the pH value of the system at 6.5, fermenting for 96 hours under the conditions of the tank pressure of 0.035mPa, the air flow rate of 0.5vvm and the rotating speed of 100r/min to obtain the gibberellin film residual liquid fermentation liquid. The effective viable count of the yeast is 1.54 multiplied by 108Bacillus subtilis 1.67X 10/ml8Piece/ml, GA30 ppm.
Example 3 (gibberellin slag treatment method):
the gibberellin fungi residue treatment method of the embodiment is as follows: transferring 50% (m/m) of the gibberellin membrane raffinate into a fermentation tank, starting stirring, adding 3% by mass of sucrose and 32% by mass of water, uniformly mixing to obtain a bacteria residue water system, introducing steam for sterilization, inoculating 5% by mass of beer yeast liquid and bacillus mucilaginosus liquid into the bacteria residue water system, keeping the pH value of the system at 30 ℃, keeping the pH value of the system at 6.0, and fermenting for 72 hours under the conditions of 0.035mPa for tank pressure, 0.5vvm for air flow and 100r/min for obtaining the gibberellin membrane raffinate fermentation liquid. The effective viable count of the yeast is 1.04 multiplied by 108Bacillus mucilaginosus 1.13X 10/ml8Piece/ml, GA30 ppm.
Example 4: (preparation of liquid Fertilizer)
The preparation of the liquid fertilizer of the invention: pumping 29.0 mass percent of distilled water into a reaction kettle, slowly adding 0.5 mass percent of xanthan gum into the kettle, starting a shear pump to uniformly shear a xanthan gum aqueous solution and pumping the xanthan gum aqueous solution into the reaction kettle, starting stirring to sequentially add 7 mass percent of urea, 5 mass percent of monoammonium phosphate, 6.5 mass percent of potassium nitrate, 1 mass percent of boric acid and 0.5 mass percent of EDTA-Zn, and stirring to dissolve completely. And then adding 40 mass percent of the membrane raffinate fermentation liquor obtained in the example 1 and 10 mass percent of biochemical fulvic acid into a reaction kettle, mixing and stirring uniformly, finally adding 0.5 mass percent of ethanolamine, and stirring to obtain the liquid fertilizer. Wherein the total effective viable count (Saccharomyces cerevisiae + Bacillus amyloliquefaciens) is 1.44 × 108Each milliliter of the fertilizer contains 16.19 percent of organic matters by mass and the total nutrient of N + P2O5+K2And O is 11 percent, and meets the standard requirement of the compound microbial fertilizer NY/T798-2015.
Example 5: (preparation of liquid Fertilizer)
The preparation of the liquid fertilizer of the invention: steaming 25.9% of the raw materialsDistilled water is pumped into a reaction kettle, and 0.8 percent xanthan gum is slowly put into the kettle. And (4) starting a shear pump to uniformly shear the xanthan gum aqueous solution. Pumping into a reaction kettle, starting stirring, sequentially adding 3% by mass of urea, 4.5% by mass of diammonium phosphate, 5% by mass of monopotassium phosphate, 3.5% by mass of calcium nitrate and 4% by mass of magnesium nitrate, and stirring to dissolve completely. And adding 50% by mass of the membrane raffinate fermentation liquor obtained in the example 2 and 4% by mass of amino acid into a reaction kettle, mixing and stirring uniformly, finally adding 0.2% by mass of ethanolamine, and stirring uniformly to obtain the liquid fertilizer. The total effective viable count (Candida and Bacillus subtilis) is 1.605 multiplied by 108One/ml, 15.67 percent of organic matter by mass and total nutrient N + P2O5+K2And O is 13.5 percent, and meets the standard requirement of the compound microbial fertilizer NY/T798-2015.
Example 6: (preparation of liquid Fertilizer)
The preparation of the liquid fertilizer of the invention: 11.2% by mass of distilled water was pumped into a reaction kettle, and 1% by mass of xanthan gum was slowly charged into the kettle. The aqueous xanthan gum solution was sheared to homogeneity. Pumping into a reaction kettle, starting stirring, and sequentially adding 6.5% by mass of urea, 7% by mass of diammonium phosphate and 8% by mass of potassium nitrate, and stirring to dissolve completely. Then 60% of the membrane raffinate fermentation liquid obtained in the example 3 and 6% of alginic acid are added into a reaction kettle to be mixed and stirred. And finally, adding 0.3% by mass of citric acid monohydrate, and uniformly stirring to obtain the liquid fertilizer. Total effective viable count (Saccharomyces cerevisiae + Bacillus mucilaginosus) is 1.302 × 108One/ml, and 17.52% of organic matter by mass. Total nutrient N + P2O5+K2And O is 13 percent, and meets the standard requirement of the compound microbial fertilizer NY/T798-2015.
As can be seen from examples 1-6, the residual gibberellin content in the residual liquid after the treatment by the treatment method of the present invention is detected to be 0, complete degradation is obtained, the membrane residual liquid fermentation liquid after the treatment is prepared into a liquid fertilizer to obtain a fertilizer rich in functional microorganisms and organic matters, the requirements of the compound microbial fertilizer NY/T798-2015 standard are met, the harmless treatment of the gibberellin bacterial residues is realized, and the physicochemical characteristics of easy spoilage and deterioration under natural conditions and environmental pollution are improved. In addition, the fermentation period of the treatment method of the invention is shorter than that of the treatment method of the prior art (for example, CN201810017258.0, which is used for dozens of days (43-49 days in total) of solid heap fermentation and decomposition) (72-120 h of the invention).
The method has the advantages of large treatment scale, simple process and short production period, is suitable for industrial production, and can realize effective utilization of resources. The liquid fertilizer prepared by adopting the gibberellin membrane residual liquid fermentation liquor is rich in functional microorganisms and metabolites thereof, has the effects of promoting growth, preventing diseases, improving soil and the like on crops, and the contained organic matters can provide rich organic matters for soil rhizosphere microorganisms, so that the colonization of the functional microorganisms is facilitated. Meanwhile, the fertilizer also contains biological stimulants, and can stimulate the growth of crops, promote the quality improvement, promote the yield increase and other functional effects.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (9)
1. A gibberellin fungi residue treatment method is characterized by comprising the following steps:
transferring 50-80% (m/m) of gibberellin membrane residual liquid into a fermentation tank, adding 1-10% by mass of a carbon source and 20-40% by mass of water, stirring and mixing uniformly to obtain a bacteria residue water system, introducing steam for sterilization, then adding 1-5% by mass of microbial strains into the bacteria residue water system, keeping the temperature at 28-35 ℃, the pH value of the system at 5.0-6.5, the tank pressure at 0.02-0.07MPa, the air flow at 0.5-1vvm and the rotating speed at 100r/min, and fermenting for 72-120h to obtain gibberellin membrane residual liquid fermentation liquid.
2. The method of claim 1, wherein the carbon source is one or more of molasses, brown sugar, glucose, sucrose, maltose, lactose, dextrin, and starch.
3. The method of claim 1 or 2, wherein the microorganism strain is one or more of Saccharomyces cerevisiae, Candida, Bacillus amyloliquefaciens, Bacillus subtilis, Bacillus licheniformis, Bacillus megaterium, and Bacillus mucilaginosus.
4. A liquid fertilizer containing a gibberellin fungi residue treatment substance, which is characterized in that: the liquid fertilizer comprises 40-70% by mass of a gibberellin membrane raffinate fermentation broth produced by the method of any one of claims 1-3, 10-30% by mass of an inorganic fertilizer, 1-10% by mass of a biostimulant, 0.1-1% by mass of an auxiliary agent, and the balance of water.
5. The liquid fertilizer containing a treated matter of gibberellin-containing fungal dreg as claimed in claim 4, wherein the inorganic fertilizer is one or more of nitrogen fertilizer (urea, ammonium sulfate), phosphate fertilizer (monoammonium phosphate, diammonium phosphate), potassium fertilizer (monopotassium phosphate, potassium nitrate, potassium sulfate, potassium chloride), magnesium fertilizer (EDTA-Mg, magnesium sulfate, magnesium nitrate, magnesium chloride), calcium fertilizer (EDTA-Ca, calcium nitrate, calcium chloride), trace element fertilizer.
6. A liquid fertilizer containing a treated matter of gibberellin fungi as claimed in any one of claims 4 to 5, wherein the adjuvant is one or more of a thickener and an acid-base regulator.
7. The liquid fertilizer containing a treated matter of gibberellin fungi residues as claimed in any one of claims 4 to 6, wherein the bio-stimulin is one or more of humic acid, amino acid, and alginic acid.
8. The liquid fertilizer containing a processed product of gibberellin fungi residues as claimed in claim 6, wherein the thickener is xanthan gum, and the pH regulator is citric acid monohydrate and/or ethanolamine.
9. A gibberellin film raffinate fermentation broth produced by the gibberellin fungi residue treatment method according to any one of claims 1 to 3.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115057729A (en) * | 2022-06-20 | 2022-09-16 | 龙蟒大地农业有限公司 | Method for transforming and utilizing gibberellin fungi residues |
| CN116986952A (en) * | 2023-08-04 | 2023-11-03 | 嘉兴市均诚农业有限公司 | Gibberellin fungus dreg composite microbial fertilizer and preparation method thereof |
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| CN108033847A (en) * | 2018-01-09 | 2018-05-15 | 江西新瑞丰生化股份有限公司 | A kind of gibberellin bacteria residue composite microbiological fertilizer and preparation method thereof |
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| KR100797914B1 (en) * | 2007-11-01 | 2008-01-24 | 주식회사 밀투밸런스 | Liguid complete fertilizer composition showing biological slow-releasing effect |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115057729A (en) * | 2022-06-20 | 2022-09-16 | 龙蟒大地农业有限公司 | Method for transforming and utilizing gibberellin fungi residues |
| CN115057729B (en) * | 2022-06-20 | 2023-12-22 | 龙蟒大地农业有限公司 | Gibberellin fungus dreg conversion and utilization method |
| CN116986952A (en) * | 2023-08-04 | 2023-11-03 | 嘉兴市均诚农业有限公司 | Gibberellin fungus dreg composite microbial fertilizer and preparation method thereof |
| CN116986952B (en) * | 2023-08-04 | 2024-04-12 | 董树鹏 | Gibberellin fungus dreg composite microbial fertilizer and preparation method thereof |
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