CN110074138A - A kind of bacillus amyloliquefaciens oil-suspending agent - Google Patents
A kind of bacillus amyloliquefaciens oil-suspending agent Download PDFInfo
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- CN110074138A CN110074138A CN201910526300.6A CN201910526300A CN110074138A CN 110074138 A CN110074138 A CN 110074138A CN 201910526300 A CN201910526300 A CN 201910526300A CN 110074138 A CN110074138 A CN 110074138A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/02—Esters of acyclic saturated monocarboxylic acids having the carboxyl group bound to an acyclic carbon atom or to hydrogen
- C07C69/22—Esters of acyclic saturated monocarboxylic acids having the carboxyl group bound to an acyclic carbon atom or to hydrogen having three or more carbon atoms in the acid moiety
- C07C69/24—Esters of acyclic saturated monocarboxylic acids having the carboxyl group bound to an acyclic carbon atom or to hydrogen having three or more carbon atoms in the acid moiety esterified with monohydroxylic compounds
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Abstract
The invention discloses a kind of bacillus amyloliquefaciens oil-suspending agents, are related to oil-suspending agent technical field, the component including following parts by weight: 5 × 1010‑5×1012Living spores/gram 1-20 parts of bacillus amyloliquefaciens female powder；50-70 parts of methylated vegetable oil；5-20 parts of emulsifier；1-10 parts of suspension aid.The made bacillus amyloliquefaciens oil-suspending agent of the present invention is suspended in bacillus amyloliquefaciens equably in diluent methylated vegetable oil, excellent storage stability, pourability is good, effective component utilization rate is high, application is convenient and rapid-action, and made bacillus amyloliquefaciens oil-suspending agent is significant to the control efficiency of tobacco bacterial wilt and bacterial wilt of tomato after tested.
Description
Technical field:
The present invention relates to oil-suspending agent technical fields, and in particular to a kind of bacillus amyloliquefaciens oil-suspending agent.
Background technique:
Bacillus amyloliquefaciens (Bacillus amyloliquefaciens) are one kind in bacillus, extensively
It is distributed in gram-positive bacteria in nature, the production capacity with stronger secondary metabolite can produce a variety of suppressions
The relevant metabolite of bacterium.
By bacillus amyloliquefaciens be manured into soil or water body in, some noxious materials in the nature that can degrade, purify quilt
Contaminated soil and rivers and lakes.Bacillus amyloliquefaciens are typical plant growth-promoting bacteria again, can secrete antibacterial protein, antibiosis
Element, enzyme or polypeptide isoreactivity substance promote plant growth, prevent and treat plant epiphyte and bacteriosis.Due to bacillus amyloliquefaciens
A variety of antibacterial substances can be secreted, have extensive resistance to the germ of fruit and vegetable surfaces, are able to solve preserving fruit and vegetable utilizing and long-term
Storage problem.These good characteristics of bacillus amyloliquefaciens have very big application potential in terms of environmental protection, agricultural production.
Patent CN201410086984.X discloses a kind of bacillus amyloliquefaciens water dispersible granules, although water dispersible granules
It is easy to use, the humidity of air can be not only reduced compared with aqua, and dust pollution can be reduced compared with pulvis, but moisture
Shot agent, which needs to be absorbed water after spreading fertilizer over the fields, is disintegrated competence exertion drug effect, works slow, especially the control efficiency to crop foliage disease
It is bad.
Summary of the invention:
Technical problem to be solved by the present invention lies in provide a kind of bacillus amyloliquefaciens oil-suspending agent, the oil-suspending agent
Excellent storage stability, strong drug action, the prevention and treatment suitable for various crop disease.
The following technical solution is employed for the technical problems to be solved by the invention to realize:
A kind of bacillus amyloliquefaciens oil-suspending agent, the component including following parts by weight:
5×1010-5×1012Living spores/gram 1-20 parts of bacillus amyloliquefaciens female powder；
50-70 parts of methylated vegetable oil；
5-20 parts of emulsifier；
1-10 parts of suspension aid.
The methylated vegetable oil selects the one or more of the vegetable oil of esterification, preferably esterification rapeseed oil, methyl esters
Change one or more of soybean oil, esterification peanut oil, esterification rapeseed oil.
The emulsifier selects alkyl phenol polyoxyethylene ether, preferably nonylphenol polyoxyethylene ether.
The suspension aid selects one of ethylhexyl palmitate, ethylhexyl methoxy cinnamate.
Above-mentioned oil-suspending agent further includes 0.5-2 parts of defoaming agents.
The defoaming agent selects polyethers defoaming agent.
In order to further enhance defoaming effect and simultaneously avoid it is poor using dissolubility existing for the conventional antifoam of this field, high
The lower problem for easily occurring to be layered, antifoaming speed is slow of temperature, the present invention have also made defoaming agent by oneself, and specific technical solution is as follows:
The defoaming agent is made of stearic acid and rhodinol by esterification, preparation method are as follows: will be stearic
Acid is added to absolute ethanol with rhodinol, then the concentrated sulfuric acid is added dropwise, and be heated to reflux state insulation reaction, after reaction
Cooled to room temperature, filtering, precipitating washing 2-3 times are most ground into powder after 50-60 DEG C of oven drying afterwards.
The stearic acid, rhodinol molar ratio be 1:1.
In order to further enhance made oil-suspending agent to the control efficiency of crop disease, the present invention also added self-control adherency
As component, specific technical solution is as follows for agent:
Above-mentioned oil-suspending agent further includes 0.5-2 parts of adhesives.
The adhesive is made of 1,3-PD and alpha-linolenic acid by esterification, preparation method are as follows: to 1,
The concentrated sulfuric acid is added in the mixture of 3-propanediol and alpha-linolenic acid, and is heated to 70-80 DEG C of insulation reaction, it is natural after reaction
It is cooled to room temperature, filters, precipitating washing 2-3 times is most ground into powder after 50-60 DEG C of oven drying afterwards.
The 1,3- propylene glycol and the molar ratio of alpha-linolenic acid are 1:2.
The effect of each component in oil-suspending agent of the present invention:
Methylated vegetable oil derives from plant as diluent, has the function of adherency, dissolution plant surface wax coat,
It is applied to effective component on crop, and its biological degradability is good, to environment nonhazardous, avoids using organic solvent as dilute
Release the problem of pollution application environment after volatilizing is deposited in agent.
Emulsifier plays solubilising, peptizaiton, promotes bacillus amyloliquefaciens female powder uniform in methylated vegetable oil
Dispersion.
The addition of suspension aid can further increase suspension stability, good with the compatibility of methylated vegetable oil, can
Effectively extend the shelf life of bacillus amyloliquefaciens oil-suspending agent；And ethylhexyl palmitate and methoxyl group meat that the present invention uses
Cinnamic acid ethylhexyl is simultaneously not belonging to the commonly used or known insecticides adjuvant for having and helping suspension effect, and inventor is also to grind
Have been surprisingly found that both substances have the effect in studying carefully.
The addition of defoaming agent efficiently solves bubble problem existing for emulsifier, facilitates the use of made oil-suspending agent, keeps away
Exempt from the presence of foam and influences the concentration of effective component and influence adhesiving effect of the effective component on crop and then can not take
Obtain target drug effect.Self-control defoaming agent is made of stearic acid and rhodinol by esterification, belongs to noval chemical compound, defoams
Effect is substantially better than polyethers defoaming agent commonly used in the art.
The adding purpose of adhesive be in order to after oil-suspending agent is applied to crop enhance effective component crop cauline leaf with
And the adhesiveness on root system, to give full play to control efficiency using effective component.1,3- propylene glycol and linolenic acid itself are not
With adhesive attraction, esterification occurs for carboxyl contained by linolenic acid and 1,3-PD institute's hydroxyl generate to include two in structure
The noval chemical compound of ester group, which can be adhered on crop cauline leaf and root system, so that effective component be made to concentrate on crop
Target effect site.
The beneficial effects of the present invention are: the made bacillus amyloliquefaciens oil-suspending agent of the present invention keeps bacillus amyloliquefaciens equal
It is suspended in diluent methylated vegetable oil evenly, excellent storage stability, pourability is good, and effective component utilization rate is high, application side
Just and it is rapid-action, it avoids using initiation dust pollution and water dispersion existing for increasing air humidity, pulvis existing for aqua
The problem of effective component could be released through disintegration after the existing water suction of granula；And made bacillus amyloliquefaciens oil after tested
Suspending agent is significant to the control efficiency of tobacco bacterial wilt and bacterial wilt of tomato, but its controlling object be not limited to tobacco bacterial wilt and
Bacterial wilt of tomato further includes tobacco black shank, Alternaria alternate etc..
Specific embodiment:
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained.
Embodiment 1
Bacillus amyloliquefaciens female powder selects 3 × 1011Living spores/gram bacillus amyloliquefaciens female powder, esterification plant
Oil selects esterification rapeseed oil, and emulsifier selects nonylphenol polyoxyethylene ether TX-6, and suspension aid selects ethylhexyl palmitate.
150g bacillus amyloliquefaciens female powder, 580g methylated vegetable oil, 100g emulsifier, 25g suspension aid are added
In SHR-100A mixing machine, mix 5min under 650rpm, and using GM2000/4 high-shear colloid mill wet-milling 10min to get
Bacillus amyloliquefaciens oil-suspending agent.
Embodiment 2
It is control, the embodiment 2 that setting suspension aid dosage is 30g, remaining materials and operation and embodiment with embodiment 1
1 is identical.
150g bacillus amyloliquefaciens female powder, 580g methylated vegetable oil, 100g emulsifier, 30g suspension aid are added
In SHR-100A mixing machine, mix 5min under 650rpm, and using GM2000/4 high-shear colloid mill wet-milling 10min to get
Bacillus amyloliquefaciens oil-suspending agent.
Embodiment 3
With embodiment 1 be control, setting suspension aid select ethylhexyl methoxy cinnamate substitution palm acid ethyl oneself
The embodiment 3 of ester, remaining materials and operation are identical with embodiment 1.
150g bacillus amyloliquefaciens female powder, 580g methylated vegetable oil, 100g emulsifier, 25g suspension aid are added
In SHR-100A mixing machine, mix 5min under 650rpm, and using GM2000/4 high-shear colloid mill wet-milling 10min to get
Bacillus amyloliquefaciens oil-suspending agent.
Embodiment 4
It is control, the embodiment 4 of setting addition 10g defoaming agent, defoaming agent selection polyether antifoam agent DF- with embodiment 1
1587, remaining materials and operation are identical with embodiment 1.
By 150g bacillus amyloliquefaciens female powder, 580g methylated vegetable oil, 100g emulsifier, 25g suspension aid, 10g
Defoaming agent is added in SHR-100A mixing machine, 5min is mixed under 650rpm, and utilize the wet-milling of GM2000/4 high-shear colloid mill
10min is to get bacillus amyloliquefaciens oil-suspending agent.
Embodiment 5
It is control with embodiment 1, the embodiment 5 of setting addition 10g defoaming agent, defoaming agent selection is following to make defoaming agent by oneself,
Remaining materials and operation are identical with embodiment 1.
By 150g bacillus amyloliquefaciens female powder, 580g methylated vegetable oil, 100g emulsifier, 25g suspension aid, 10g
Defoaming agent is added in SHR-100A mixing machine, 5min is mixed under 650rpm, and utilize the wet-milling of GM2000/4 high-shear colloid mill
10min is to get bacillus amyloliquefaciens oil-suspending agent.
The preparation of defoaming agent: 28.4g stearic acid and 15.6g rhodinol are added to absolute ethanol, then 0.5g is added dropwise
98% concentrated sulfuric acid, and it is heated to reflux state insulation reaction 5h, cooled to room temperature, filtering, precipitating wash 2 after reaction
It is secondary, most powder is ground into after 55 DEG C of oven dryings afterwards.
Embodiment 6
It is control with embodiment 1, the embodiment 6 of setting addition 10g adhesive, adhesive selection is following to make adhesive by oneself,
Remaining materials and operation are identical with embodiment 1.
150g bacillus amyloliquefaciens female powder, 580g methylated vegetable oil, 100g emulsifier, 25g suspension aid, 10g are viscous
In attached dose of addition SHR-100A mixing machine, 5min is mixed under 650rpm, and utilize the wet-milling of GM2000/4 high-shear colloid mill
10min is to get bacillus amyloliquefaciens oil-suspending agent.
The preparation of adhesive: 0.05g is added into 0.76g 1,3- propylene glycol and the mixture of 5.57g alpha-linolenic acid
98% concentrated sulfuric acid, and 75 DEG C of insulation reaction 2h are heated to, cooled to room temperature, filtering, precipitating are washed 2 times after reaction,
Most powder is ground into after 55 DEG C of oven dryings afterwards.
Embodiment 7
It is control with embodiment 1, the embodiment 7 of setting addition 10g defoaming agent and 10g adhesive, defoaming agent is selected following
Make defoaming agent by oneself, adhesive selects following self-control adhesive, remaining materials and operation are identical with embodiment 1.
By 150g bacillus amyloliquefaciens female powder, 580g methylated vegetable oil, 100g emulsifier, 25g suspension aid, 10g
Defoaming agent, 10g adhesive are added in SHR-100A mixing machine, 5min are mixed under 650rpm, and utilize GM2000/4 high shear
Colloid mill wet-milling 10min is to get bacillus amyloliquefaciens oil-suspending agent.
The preparation of defoaming agent: 28.4g stearic acid and 15.6g rhodinol are added to absolute ethanol, then 0.5g is added dropwise
98% concentrated sulfuric acid, and it is heated to reflux state insulation reaction 5h, cooled to room temperature, filtering, precipitating wash 2 after reaction
It is secondary, most powder is ground into after 55 DEG C of oven dryings afterwards.
The preparation of adhesive: 0.05g is added into 0.76g 1,3- propylene glycol and the mixture of 5.57g alpha-linolenic acid
98% concentrated sulfuric acid, and 75 DEG C of insulation reaction 2h are heated to, cooled to room temperature, filtering, precipitating are washed 2 times after reaction,
Most powder is ground into after 55 DEG C of oven dryings afterwards.
Reference examples 1
It is control with embodiment 1, the reference examples 1 of suspension aid are not added in setting, remaining materials and operation are complete with embodiment 1
It is exactly the same.
150g bacillus amyloliquefaciens female powder, 580g methylated vegetable oil, 100g emulsifier are added SHR-100A and mixed
In machine, 5min is mixed under 650rpm, and using GM2000/4 high-shear colloid mill wet-milling 10min to get solution starch gemma bar
Bacterium oil-suspending agent.
Reference examples 2
It is control with embodiment 1, institute in the mixture replacing embodiment 5 of 10g stearic acid and rhodinol is added in setting
The reference examples 2 of defoaming agent are stated, remaining materials and operation are identical with embodiment 1.
By 150g bacillus amyloliquefaciens female powder, 580g methylated vegetable oil, 100g emulsifier, 25g suspension aid, 10g
SHR-100A mixing machine is added in the mixture (molar ratio of stearic acid and rhodinol is 1:1) of stearic acid and rhodinol
In, 5min is mixed under 650rpm, and using GM2000/4 high-shear colloid mill wet-milling 10min to get bacillus amyloliquefaciens
Oil-suspending agent.
Reference examples 3
It is control with embodiment 1, setting is added in the mixture replacing embodiment 6 of 10g 1,3-PD and alpha-linolenic acid
The reference examples 3 of the adhesive, remaining materials and operation are identical with embodiment 1.
150g bacillus amyloliquefaciens female powder, 580g methylated vegetable oil, 100g emulsifier, 25g suspension aid, 10g 1,
The mixture (1,3- propylene glycol is 1:2 with the molar ratio of alpha-linolenic acid) of 3-propanediol and alpha-linolenic acid is added SHR-100A and mixes
In machine, 5min is mixed under 650rpm, and using GM2000/4 high-shear colloid mill wet-milling 10min to get solution starch gemma bar
Bacterium oil-suspending agent.
The nuclear-magnetism characterize data of defoaming agent: C28H54O2；1HNMR(DMSO,400MHz),δ:5.19(t,1H),4.01(t,
2H),2.32(t,2H),1.92(m,2H),1.80(s,3H),1.80(s,3H),1.54-1.41(m,5H),1.26-1.33(m,
30H),0.87(m,6H)；ESI-MS:m/z=423.41 [M]+。
The characterize data of adhesive: C30H64O4；1HNMR(DMSO,400MHz),δ:5.39-5.42(m,12H),4.10(m,
4H),2.82(t,8H),2.30(t,4H),2.14(q,4H),1.95(m,2H),1.66-1.26(m,24H),0.82(t,6H)；
ESI-MS:m/z=597.48 [M]+。
The key technical indexes of bacillus amyloliquefaciens oil-suspending agent made from embodiment 1-7 and reference examples 1-3 is carried out
Measurement, measurement result are as shown in table 1.
Referring to GB/T 14825-2006 agricultural-chemical suspension rate measuring method, GB/T 31737-2015 pesticide pourability measurement side
Method, GB/T 28137-2011 pesticide persistent foamability measuring method, GB/T 19136-2003 pesticide heat storage stability measurement side
Method, GB/T 19137-2003 pesticide low-temperature stability measuring method.
The key technical indexes of 1 bacillus amyloliquefaciens oil-suspending agent of table
As shown in Table 1, the addition of suspension aid can significantly improve the suspensibility of oil-suspending agent, and the addition of defoaming agent can
It is obviously reduced the persistent foamability of oil-suspending agent, the addition of suspension aid, defoaming agent can improve the pourability of oil-suspending agent.
Bacillus amyloliquefaciens oil-suspending agent made from embodiment 1-7 and reference examples 1-3 is applied in Jiangxi Province Shicheng County
In the prevention and treatment of tobacco bacterial wilt and bacterial wilt of tomato, it is administered dosage 1200g/ hectares, pouring root application, application twice, is spaced 15 days,
Control efficiency is as shown in table 2.
Control efficiency calculation formula: [(disease index after blank control disease index-application)/blank control disease index]
× 100%.
Referring to the 49th part of NY/T 1464.49-2013 pesticide field efficacy medicine test criterion: bactericidal agent for preventing and treating tobacco blueness is withered
Disease, the 32nd part of NY/T 1464.32-2010 pesticide field efficacy medicine test criterion: bactericidal agent for preventing and treating bacterial wilt of tomato.
The control efficiency of 2 bacillus amyloliquefaciens oil-suspending agent of table
As shown in Table 2, the addition of suspension aid, defoaming agent and adhesive can obtain the technology effect of enhancing prevention and treatment drug effect
Fruit.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
1. a kind of bacillus amyloliquefaciens oil-suspending agent, it is characterised in that: the component including following parts by weight:
5×1010-5×1012Living spores/gram 1-20 parts of bacillus amyloliquefaciens female powder；
50-70 parts of methylated vegetable oil；
5-20 parts of emulsifier；
1-10 parts of suspension aid.
2. bacillus amyloliquefaciens oil-suspending agent according to claim 1, it is characterised in that: the methylated vegetable oil choosing
With the one or more of the vegetable oil of esterification, preferably esterification rapeseed oil, methyl esterification soybean oil, esterification peanut oil, methyl esters
Change one or more of rapeseed oil.
3. bacillus amyloliquefaciens oil-suspending agent according to claim 1, it is characterised in that: the emulsifier selects alkyl
Phenol polyethenoxy ether, preferably nonylphenol polyoxyethylene ether.
4. bacillus amyloliquefaciens oil-suspending agent according to claim 1, it is characterised in that: the suspension aid selects palm fibre
One of palmitic acid acid ethylhexyl, ethylhexyl methoxy cinnamate.
5. bacillus amyloliquefaciens oil-suspending agent according to claim 1, it is characterised in that: further include 0.5-2 parts of defoamings
Agent.
6. bacillus amyloliquefaciens oil-suspending agent according to claim 5, it is characterised in that: the defoaming agent selects polyethers
Class defoaming agent.
7. bacillus amyloliquefaciens oil-suspending agent according to claim 5, it is characterised in that: the defoaming agent is by tristearin
Acid and rhodinol are made by esterification, preparation method are as follows: dehydrated alcohol is added in stearic acid and rhodinol
In, then the concentrated sulfuric acid being added dropwise, and be heated to reflux state insulation reaction, cooled to room temperature, filtering precipitate water after reaction
It washes 2-3 times, is most ground into powder after 50-60 DEG C of oven drying afterwards.
8. bacillus amyloliquefaciens oil-suspending agent according to claim 7, it is characterised in that: the stearic acid, left-handed perfume (or spice)
The molar ratio of thatch alcohol is 1:1.
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| CN108184858A (en) * | 2017-12-26 | 2018-06-22 | 河北省农林科学院植物保护研究所 | A kind of compound synergistic bactericidal composition of fluorine bacterium azoles of alkene containing benzo and its application |
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| CN110447659A (en) * | 2019-08-15 | 2019-11-15 | 江苏苏滨生物农化有限公司 | A kind of bacillus amyloliquefaciens suspending agent and preparation method thereof |
| CN110447659B (en) * | 2019-08-15 | 2020-08-21 | 江苏苏滨生物农化有限公司 | Bacillus amyloliquefaciens suspending agent and preparation method thereof |
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