CN109430262A - One kind flying anti-spray adjuvants and its preparation method and application - Google Patents
One kind flying anti-spray adjuvants and its preparation method and application Download PDFInfo
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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
- A01N25/30—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 characterised by the surfactants
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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
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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
- A01N25/24—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 ingredients to enhance the sticking of the active ingredients
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Abstract
The invention discloses one kind to fly anti-spray adjuvants and its preparation method and application, belongs to pesticidal preparations and pesticide application technology field.It is described to fly anti-spray adjuvants by percentage to the quality, comprising: vegetable oil 70%~94%, emulsifier 5%~20%, assistant for emulsifying agent 1%~10%；When configuring spray liquid, auxiliary agent is mixed with pesticide, water, wherein oil and water form emulsus (turbid) liquid of Water-In-Oil form under the action of emulsifier and assistant for emulsifying agent, effective component in pesticidal preparations is dispersed in the oil of oil base emulsus (turbid) liquid mutually or in water phase, the Water-In-Oil droplet for forming moderate in grain size by spraying by fluid pressure type or centrifugal sprinkler reduces the influence that excessive oils forms tikka to crop blade face；Droplet extends rapidly when moving to plant surface, can significantly reduce interference of the wind field of unmanned plane rotor generation to droplet sedimentation adherency behavior；Water-in-oil emulsion is formed after adding water, improves the specific gravity of auxiliary agent, accelerates the sedimentation of droplet, reduce float of mist droplet.
Description
Technical field
The present invention relates to pesticidal preparations and pesticide application technology fields, and in particular to one kind flies anti-spray adjuvants and preparation method thereof
And application.
Background technique
The problem of current China's agriculture field is faced with serious labor shortage, significantly limit agricultural production and
Development, the cost of agricultural production increase year by year.And plant protection is carried out using unmanned plane and flies to prevent substantially increasing crop diseases and pest by spraying
The working efficiency of prevention and control of weeds, it is applied widely, it can also spray insecticide freely in complicated landform, save manually, can not only have
The problem of rural laborer's deficiency is alleviated on effect ground, and has for mechanization of agriculture and intelligent development and greatly facilitate work
With.
In recent years, with the development of unmanned air vehicle technique, the application of unmanned plane in agricultural production is also more and more common, especially
It is to be widely used in plant protection field due to its saving manpower, high-efficient in terms of pesticide spraying.However, in actual job
It finding in the process, unmanned plane low latitude flies influence of the anti-spray effect by pesticide spray dilution and spraying instrument, so that nobody
Machine control efficiency is often not so good as manually to be administered.
The feature of traditional pesticide dispersal equipment maximum be exactly per acre water consumption need to exist in 30L~50L, the advantage of big yield
In can guarantee that medical fluid uniformly covers each position of protected plant.But the conventional spraying water consumption per acre of unmanned plane exists
Between 0.5L~2L, belong to low capacity or ultra-low volume spray, a small amount of water is as droplet of the dilution after spraying in unmanned plane
Fly easily to be evaporated in anti-operation process, and the wind field environment that unmanned plane rotor generates is larger to the drift effect of droplet.
Currently, being equally diluted with water to commercially available pesticidal preparations with artificial spray, portion when China's unmanned plane flies anti-spraying operation
1%~10% can be added when being allocated as industry flies anti-tank-mix adjuvants for increasing the adherency or settleability of spraying droplet.Fly anti-auxiliary agent
Main species have: 1) organic silicon, can effectively reduce the surface tension of solution, conducive to droplet target surface wetting and spreading,
Droplet rebound is reduced, to improve deposition.Permeability is relatively good, is conducive to medical fluid and is directly entered in target body by stomata,
To make medical fluid absorb more medical fluids in finite time.But organic silicon auxiliary agent is in terms of anti-drift, anti-volatilization, compatibility
Almost without effect, it is not suitable for directly as flying anti-special assistant.2) high molecular polymerization species are closed with natural material or chemical industry
At, such as polyacrylamide, the viscosity of system can be improved, to improve mist droplet particle size, reduce drift.Spray liquid liquid also can be improved
The adhesive force of drop reduces rebound, slides, to improve deposited per area unit amount.3) plant oil, with the plant of the extractions such as soybean
Oil or through being esterified.Vegetable oil can make drop quickly adhere to and sprawl on target.Vegetable oil contains a large amount of fatty acid,
Droplet surface forms molecular film, to reduce moisture evaporation.Vegetable oil is conducive to dissolution or loose leaf surface of plant wax coat, promotes
Medicinal liquid osmosis absorbs.
But above-mentioned auxiliary agent is in actual use there are still problem, and first, it adds and flies anti-spraying tank-mix adjuvants, medicament water
Because being influenced by temperature, air-flow and air pressure in field conditions during sprinkling after dilution, the inhibiting effect of droplet evaporation is not
Significantly；Second, as anti-ultra low volume spray preparation or finish is flown, its main feature is that using oils as continuous phase, by pesticidal chemical
It disperses or dissolves wherein and is sprayed.But in south China, main diseases and insect pests all concentrated between October in May-, weather
Sweltering heat, and crop is directly sprayed using oil as spray dilution liquid, soluble crop surface wax coat forms oil mark, leads to plant
Growth is impaired, forms blade face phytotoxicity spot.
Therefore, research and development have anti-evaporating, the dedicated New-type adjuvant of unmanned plane pesticide spray of anti-drift performance is to fly anti-apply
Medicine key technical problem urgently to be solved.
Summary of the invention
The purpose of the present invention is to provide the special assistants that a kind of unmanned plane flies anti-spray pesticide, to solve existing unmanned plane
Fly droplet in anti-easily to evaporate, drift about, the problems such as sedimentation rate is low, and significantly increase droplet the adhesiveness of plant or pest body surface,
Permeability and medicament absorptivity, to guarantee that plant protection flies the nebulization efficiency and control efficiency of anti-application.
To achieve the above object, the present invention adopts the following technical scheme:
One kind flying anti-spray adjuvants, by percentage to the quality, comprising: oil 70%~94%, helps emulsifier 5%~20%
Emulsifier 1%~10%；
Vegetable oil can effectively facilitate infiltration and absorption of the pesticide active ingredient to plant, for non-internal-absorting pesticide
Effective component can also be enhanced in the adhesiveness on plant surface.The present invention, which passes through, adds a certain amount of surfactant, assistant for emulsifying agent,
The water of proper proportion is added to be mixed to form emulsus (turbid) liquid of Water-In-Oil form, the use of oil when reducing existing ultra-low volume spray
Amount also reduces the influence that excessive oils forms tikka to crop blade face while cost is reduced；Mist can be effectively facilitated simultaneously
Uniformly sprawling on plant surface is dripped, the area coverage of droplet is expanded.
The vegetable oil is one of methyl oleate, methyl esterification soybean oil, soybean oil, laurel methyl oleate or a variety of
Compounded combination.
Emulsifier has many advantages, such as to reduce surface tension, increases wetting and permeability, is to form this auxiliary agent water-in-oil system
Important auxiliary agent, ensure that the stability of emulsion for flying anti-spray adjuvants at high/low temperature so that auxiliary agent system itself be not easy by
The pesticidal preparations of addition are demulsified.
The emulsifier is fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether-organophosphorus ester compound emulsifying agent, gathers
Ethylene oxide sorbitan fatty acid ester, organophosphorus ester, sorbitan fatty acid ester, castor oil polyoxyethylene ether, alkyl
One of phenol alkoxide compound, alkyl glycosides, hydroxyl poly-ethylene oxide block polymer, propylene glycol block polyether are a variety of
Compounded combination.
Assistant for emulsifying agent increases in spray adjuvants system oils to the solubilising of emulsifier and helps emulsification function, guarantees emulsifier energy
It is adequately dissolved in the oil and forms stable emulsion system.
The assistant for emulsifying agent is one of polyethylene glycol, ethyl alcohol, isopropanol, n-butanol, isobutanol or a variety of combinations.
Under the action of assistant for emulsifying agent based on the alcohols, promote to fly anti-spray adjuvants and resist the ability that high/low temperature influences and stablize to be promoted ,-
Adjuvant system of the present invention is stable between 10 DEG C~54 DEG C, the emulsion stabilization of formation.
Adjuvant system provided by the invention is liquid condition, and mobility is moderate, a variety of commercially available conventional agricultures to be added to need
Pharmaceutically dosage form has good compatibility.
Preferably, described fly anti-spray adjuvants by percentage to the quality, comprising: vegetable oil 70%~85%, emulsifier
10%~20%, assistant for emulsifying agent 3%~10%；
The vegetable oil is one of methyl oleate, methyl esterification soybean oil, soybean oil or a variety of compounded combinations；
The emulsifier is fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether-organic phosphoric acid ester complexes, polyoxy second
Alkene sorbitan fatty acid ester, organophosphorus ester, sorbitan fatty acid ester, castor oil polyoxyethylene ether, alkyl phenol alkane
One of oxo-compound, hydroxyl poly-ethylene oxide block polymer, propylene glycol block polyether or a variety of compounded combinations；
The assistant for emulsifying agent is one of isopropanol, n-butanol, isobutanol or a variety of combinations.
Preferably, described flies anti-spray adjuvants by percentage to the quality, comprising: vegetable oil 70%~80%, emulsification
Agent 10%~20%, assistant for emulsifying agent 5%~10%；
The vegetable oil is one of methyl oleate, methyl esterification soybean oil or a variety of compounded combinations；Oils in auxiliary agent
Dosage can be with but not just for 70%, 75%, 78%, 80% equal percentage content；
The emulsifier is fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether-organic phosphoric acid ester complexes, polyoxy second
Alkene sorbitan fatty acid ester, organophosphorus ester, sorbitan fatty acid ester, castor oil polyoxyethylene ether, hydroxyl polycyclic
One of oxidative ethane block polymer, propylene glycol block polyether or a variety of compounded combinations；The dosage of emulsifier can in auxiliary agent
With but not just for 10%, 13%, 15%, 18%, 19%, 20% equal percentage content；
The assistant for emulsifying agent is one of n-butanol, isobutanol or a variety of compounded combinations.Assistant for emulsifying agent in auxiliary agent
Dosage can be with but not just for 5%, 7%, 9%, 10% equal percentage content.
The above-mentioned method for flying anti-spray adjuvants is prepared the present invention also provides a kind of, comprising: by emulsifier and assistant for emulsifying agent
After mixing, stirring and dissolving in oil is added, through 2000 turns~3000 revs/min of homogenizer shearings, 5~20 minutes formation stable homogeneous
Oil-based fluid fly anti-spray adjuvants to get described.
When progress plant protection drone flies anti-operation, fly anti-spray adjuvants dilution pesticidal chemical using provided by the invention,
Most of pesticidal preparations are now sold in the auxiliary agent and market can form stable water-in-oil emulsion with water.The water-in-oil emulsion of formation
Liquid includes oil and water, the pesticidal preparations dosage form equal energy of oil dispersed or water dispersion wide to the suitability of pesticidal preparations in use process
Dilution mixing is effectively performed, specifically, is suitble to the formulations of pesticide mixed with auxiliary agent of the present invention as follows: aqueous emulsion, microemulsion, water
Suspending agent, oil-suspending agent, water dispersible granules, wettable powder, missible oil, soluble liquid, water (liquid) agent and ultra low volume spray oil
Agent.
The present invention provides a kind of preparation methods for flying anti-spray liquid, comprising:
Oil base dosage form or drying dosage form pesticide and it is described fly anti-spray adjuvants premixing after, add water oscillation mixing, be made
Fly anti-spray liquid；
After water base dosage form pesticide and water are pre-mixed, the anti-spray adjuvants oscillation that flies is added and mixes, is made winged anti-spraying
Liquid.
The oil base dosage form refers to oil-suspending agent, missible oil, ultra low volume spray finish.
The dry preparation refers to water dispersible granules, wettable powder.
The water base dosage form refers to aqueous emulsion, microemulsion, aqueous suspension agent, soluble liquid, liquor or aqua.
Water used is deionized water, city domestic water (tap water) or natural water.
Preferably, the mixed volume ratio for flying anti-spray adjuvants and water phase is 1:0.1~1.5.The water phase include water and
Water base dosage form pesticide, prepared by the present invention to fly emulsus (turbid) liquid that anti-spray liquid is Water-In-Oil form, wherein water phase accounting is certain,
It when preparing spray liquid, is matched according to the formulations of pesticide, is added in water volume (water phase) ratio as the volume of water base dosage form pesticide is included in；
The volume of aqueous compositions is not counted in and flies anti-spray liquid total volume for oil base dosage form and dry preparation pesticide etc..More preferably, flying anti-
The mixed volume ratio of spray adjuvants and water phase is 1.25:1.
The present invention also provides fly anti-spray liquid as made from above-mentioned preparation method.Studies have shown that auxiliary agent addition of the present invention
After medicament and water are stirred oscillation mixing, Water-In-Oil spray dilution liquid is formed, measures conductivity in 0.01 μ of μ s/cm~0.04
Between s/cm, the partial size of drop in water-in-oil emulsion is measured through laser particle analyzer are as follows: D10=71.34 μm, D50=99.60 μm,
D90=132.43 μm.It can be determined that oil is continuous phase when usually conductivity is extremely low, water is dispersed phase, it can be confirmed that of the invention
The anti-spray liquid that flies of preparation is Water-In-Oil form emulsion.
The present invention also provides the anti-spray liquids that flies to fly the application in anti-spray pesticide for unmanned plane.Fly when application
The dosage of anti-spray adjuvants is 7.5~30 liters/hectare.
It is that the present invention has the utility model has the advantages that
(1) the anti-spray adjuvants that fly of the invention are made of vegetable oil, emulsifier and assistant for emulsifying agent, when configuring spray liquid,
Auxiliary agent is mixed with pesticide, water, wherein oil and water form the emulsus of Water-In-Oil form under the action of emulsifier and assistant for emulsifying agent
(turbid) liquid, the effective component in pesticidal preparations are dispersed in the oil of oil base emulsus (turbid) liquid mutually or in water phase, pass through fluid pressure type
Or centrifugal sprinkler forms the Water-In-Oil droplet of moderate in grain size by spraying, the dosage of oil when reducing existing ultra-low volume spray,
The influence that excessive oils forms tikka to crop blade face is also reduced while cost is reduced；Emulsion under Water-In-Oil state
The droplet formed after spraying can effectively enhance adhesiveness when moving to plant surface, reduce droplet and bounce effect, and
It is extended rapidly under the action of surfactant, can significantly reduce the wind field of unmanned plane rotor generation to droplet sedimentation adherency behavior
Interference；Auxiliary agent of the present invention forms water-in-oil emulsion after adding water simultaneously, improves the specific gravity of auxiliary agent, thus can accelerate the heavy of droplet
Drop reduces float of mist droplet.
(2) preparation process of auxiliary agent of the present invention is simple, and field is easy to use and operate；It is right without containing aromatic hydrocarbons organic solvent
The bio-safeties such as user and domestic animal；Oils platymiscium oil is selected, it is degradable in the environment, there is anti-evaporating, anti-drift, Yi Chen
Drop, easy the advantages that absorbing.
(3) auxiliary agent provided by the invention belongs to universal spray adjuvants, forms Water-In-Oil form emulsus (turbid) after mixing with water
Liquid has oil mutually and water phase, can sell most of formulations of pesticide with current market and can be carried out dilution mixing well, be suitble to
Fly anti-spray pesticide in fluid pressure type or centrifugal sprinkler.
Detailed description of the invention
Fig. 1 is that the dilution of commercially available agricultural chemical suspending agent adding assistant and water is big in plant blade face droplet after being sprayed in embodiment 1
Small and distribution comparison figure；Wherein (a) is after special assistant of the present invention is mixed with commercially available agricultural-chemical suspension dilution agent on plant blade face
Droplet size and distribution map；(b) for water mixed with commercially available agricultural-chemical suspension dilution agent after plant blade face droplet size and divide
Butut.
Fig. 2 is after the dilution of commercially available agricultural chemical preparation oil-suspending agent adding assistant and water is spraying in embodiment 5 on plant blade face
Droplet size and the comparison figure of distribution；Wherein (a) is that special assistant of the present invention is mixed with the dilution of commercially available pesticidal preparations oil-suspending agent
Afterwards in the droplet size and distribution map on plant blade face；(b) in plant after being mixed for water with the dilution of commercially available pesticidal preparations oil-suspending agent
The droplet size and distribution map on blade face.
Specific embodiment
In order to make the apparent intuitive presentation of the objectives, technical solutions, and advantages of the present invention, below in conjunction with test data knot
The present invention is described in further detail for fruit.Following analysis result for explaining only the invention, is not limited to the present invention.
The mass percent for each component mentioned in the embodiment of the present invention refers not only to close for the mass ratio between each component
System, can also indicate the concrete content of each component.As long as therefore according between each component being previously mentioned in the embodiment of the present invention
Content ratio within the scope of zoom in or out disclosed in the specification of the embodiment of the present invention, mass unit described in the specification
It can be with mathematical quality unit well known to mg, g, kg etc..
The embodiment of the present invention chooses the part pesticidal preparations of market sale, and invention is further described in detail.It chooses
Commercially available pesticide be respectively: 20% Rynaxypyr suspending agent (SC, E.I.Du Pont Company), 10% bromine cyanogen insect amide oil-suspending agent
(OD, E.I.Du Pont Company), 3% chlorine fluorine pyridine ester (EC, Tao benefit agriculture).
Embodiment 1
1, a kind of spraying special assistant of agricultural plant protection unmanned plane is present embodiments provided.The spray adjuvants are by following components
Composition: methyl oleate 75.5%, organophosphorus ester 2%, fatty alcohol polyoxyethylene ether 3.5%, sorbitan fatty acid ester
8.5%, polyoxyethylene sorbitan fatty acid ester 3.5%, n-butanol 7%.
The special assistant preparation method: according to spray adjuvants formula, methyl oleate, organophosphorus ester, fat are weighed respectively
After alcohol polyoxyethylene ether, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, n-butanol mixing, use
Shearing homogenizing machine is sheared 10 minutes with 2000 revs/min of rate, and form transparent and homogeneous form flies anti-spraying special assistant.This
The mixing ratio of auxiliary agent and water is 1:0.667.
2, fly anti-spray liquid preparation method:
Suspending agent type spray liquid (SC): after the water mixing of 20% Rynaxypyr suspending agent and 30g for weighing 10g, delay
Slowly it is added to the above-mentioned spraying special assistant of 60g, being mixed to form spray liquid through oscillation, to can be used to unmanned plane spraying；
Oil suspending agent type spray liquid (OD): weigh 10g 10% bromine cyanogen insect amide oil-suspending agent and 60g it is above-mentioned spraying dedicated
After auxiliary agent mixing, it is slowly added to the water of 40g, being mixed to form spray liquid through oscillation, to can be used to unmanned plane spraying；
Missible oil dosage form spray liquid (EC): the above-mentioned spraying special assistant mixing of the 3% chlorine fluorine pyridine ester and 60g of 10g is weighed
Afterwards, it is slowly added to the water of 40g, being mixed to form spray liquid through oscillation, to can be used to unmanned plane spraying.
3, performance test
Spraying special assistant provided in this embodiment carries out 10 times of dilution shapes using the Multiple Pesticides dosage form now sold in the market
Water-in-oil emulsion is used at spraying, and 10 times of dilutions processing is carried out to identical pesticidal preparations using deionized water simultaneously and is used as pair
According to if Water-In-Oil blank control and each conduct of deionized water blank control are referring to processing.Mist droplet particle size test uses
HYPRO-015# calibrating nozzle carries out under the conditions of flow 1.0L/min.The measurement of 20min evaporation rate uses weight method, in constant temperature
It is carried out under 30 DEG C of constant temperatures in case.
Each spray liquid carries out parametric measurement listed in table 1, measures results of property and is displayed in Table 1.
Table 1
As shown in Table 1, the special assistant that embodiment 1 provides is diluted mixing from the different formulations of pesticide listed in table 1
Afterwards, indoor simulation spraying operation, the water-in-oil emulsion performance parameter of acquisition are carried out using same model fluid pressure type Fan spray head
Majority is better than using the diluted pesticidal preparations of deionized water.Pure deionized water mist droplet particle size is smaller, but after adding pesticidal preparations
Mist droplet particle size is significantly greater than spray adjuvants dilution, this is because this spray adjuvants itself contain the auxiliary agents such as emulsifier, can more have
The physicochemical character of the performance pesticidal preparations of benefit.
The diluted emulsion of this special assistant homogeneous stability, all spray liquids in 1 hour stability test do not occur
Phenomena such as crystallization, flocculation.
The evaporation rate of 1 special assistant of embodiment, surface tension, contact angle are respectively less than deionized water dilution control group；
Conductivity shows that droplets particles outer layer is wrapped up by oil, moisture is difficult between 0.01~0.04 μ s/cm when conductivity is almost 0
To be evaporated, evaporation rate it is small, be more advantageous to field spray.The lesser medical fluid that can effectively facilitate of surface tension, contact angle exists
Distribution is sprawled on plant blade face, can more effectively play drug effect, reaches prevention and treatment purpose.
This special assistant for further looking at the offer of embodiment 1 adds water confection to dilute the water-in-oil emulsion medical fluid to be formed
Practical nanospray experiment is carried out as a result, can observe in Fig. 1 and dilution more of the present invention in field with deionized water dilute liquid medicine
Medical fluid and deionized water dilute liquid medicine the plant blade face Pcnten-1 yne-4 situation after the practical spraying operation in field.Such as Fig. 1 (a) institute
Show, by embodiment 1 provide it is spraying flown anti-be sprayed with water-in-oil emulsion after droplet be evenly distributed on rice leaf, droplet
It is adsorbed immediately after touching rice leaf and extravagance is come rapidly, while also can effectively helped under the action of methyl oleate
The osmotic absorption of effective ingredient is conducive to play drug effect；As shown in Fig. 1 (b), the routine that is diluted using deionized water
After jet sprays found no on rice leaf any droplet inhale appended spot or droplet there are the phenomenon that, droplet is being planted
The adsorption effect on strain blade face is undesirable.
Embodiment 2
1, a kind of spraying special assistant of agricultural plant protection unmanned plane is present embodiments provided.The spray adjuvants are by following components
Composition: methyl oleate 77.5%, organophosphorus ester 2%, hydroxyl poly-ethylene oxide block polymer 3.5%, Sorbitan alcohol ester
Fat acid esters 10%, polyoxyethylene sorbitan fatty acid ester 2%, n-butanol 5%.
The special assistant preparation method: according to spray adjuvants formula, methyl oleate, organophosphorus ester, hydroxyl are weighed respectively
Poly-ethylene oxide block polymer, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, n-butanol mixing
Afterwards, it uses shearing homogenizing machine to shear 10 minutes with 2000 revs/min of rate, forms the winged anti-spraying dedicated of transparent and homogeneous form
Auxiliary agent.The mixing ratio of this auxiliary agent and water is 1:1.
2, fly anti-spray liquid preparation method:
Suspending agent type spray liquid (SC): after the water mixing of 20% Rynaxypyr suspending agent and 40g for weighing 10g, delay
Slowly it is added to the above-mentioned spraying special assistant of 50g, being mixed to form spray liquid through oscillation, to can be used to unmanned plane spraying；
Oil suspending agent type spray liquid (OD): weigh 10g 10% bromine cyanogen insect amide oil-suspending agent and 50g it is above-mentioned spraying dedicated
After auxiliary agent mixing, it is slowly added to the water of 50g, being mixed to form spray liquid through oscillation, to can be used to unmanned plane spraying；
Missible oil dosage form spray liquid (EC): the above-mentioned spraying special assistant mixing of the 3% chlorine fluorine pyridine ester and 50g of 10g is weighed
Afterwards, it is slowly added to the water of 50g, being mixed to form spray liquid through oscillation, to can be used to unmanned plane spraying.
3, performance test
Spraying special assistant provided in this embodiment carries out 10 times of dilution shapes using the Multiple Pesticides dosage form now sold in the market
Water-in-oil emulsion is used at spraying, and 10 times of dilutions processing is carried out to identical pesticidal preparations using deionized water simultaneously and is used as pair
According to if Water-In-Oil blank control and each conduct of deionized water blank control are referring to processing.Mist droplet particle size test uses
HYPRO-015# standard fan nozzle carries out under the conditions of flow 1.0L/min.The measurement of 20min evaporation rate uses weight method,
It is carried out under 30 DEG C of constant temperatures in insulating box.
Each spray liquid carries out parametric measurement listed in table 2, measures results of property and is displayed in Table 2.
Table 2
As shown in Table 2, the special assistant that embodiment 2 provides is diluted mixing from the different formulations of pesticide listed in table 2
Afterwards, indoor simulation spraying operation, the water-in-oil emulsion performance parameter of acquisition are carried out using same model fluid pressure type Fan spray head
Majority is better than using the diluted pesticidal preparations of deionized water.Pure deionized water mist droplet particle size is smaller, but after adding pesticidal preparations
Mist droplet particle size is significantly greater than spray adjuvants dilution, this is because this spray adjuvants itself contain the auxiliary agents such as emulsifier, can more have
The physicochemical character of the performance pesticidal preparations of benefit.The diluted emulsion of this special assistant homogeneous stability in 1 hour stability test,
All spray liquids do not occur phenomena such as crystallization, flocculation.The evaporation rate of 2 special assistant of embodiment, surface tension, contact angle are equal
Less than deionized water dilution control group.Conductivity is between 0.01~0.04 μ s/cm；Spray liquid conductivity is significantly less than certainly
Show that droplets particles outer layer is wrapped up by oil when water is close to zero, moisture is difficult to be evaporated, evaporation rate is small, is more advantageous to field
It is spraying.Surface tension, contact angle be lesser can be effectively facilitated medical fluid and sprawls distribution on plant blade face, can more effectively be played
Drug effect reaches prevention and treatment purpose.
Embodiment 3
1, it present embodiments provides a kind of agricultural plant protection unmanned plane and is sprayed special assistant.The spray adjuvants are by following components group
At: methyl esterification soybean oil 79%, fatty alcohol polyoxyethylene ether-organic phosphoric acid ester complexes 3%, sorbitan fatty acid ester
9%, hydroxyl poly-ethylene oxide block polymer 2.5%, n-butanol 6.5%.
The special assistant preparation method: according to above-mentioned auxiliary formula, methyl esterification soybean oil, fatty alcohol polyoxy second are weighed respectively
Alkene ether-organic phosphoric acid ester complexes, sorbitan fatty acid ester, hydroxyl poly-ethylene oxide block polymer, n-butanol use
Shearing homogenizing machine is sheared 10 minutes with 2000 revs/min of rate, and form transparent and homogeneous form flies anti-spraying special assistant.This
The mixing ratio of auxiliary agent and water is 1:0.667.
2, fly anti-spray liquid preparation method:
Suspending agent type spray liquid (SC): after the water mixing of 20% Rynaxypyr suspending agent and 30g for weighing 10g, delay
Slowly it is added to the above-mentioned spraying special assistant of 60g, being mixed to form spray liquid through oscillation, to can be used to unmanned plane spraying；
Oil suspending agent type spray liquid (OD): weigh 10g 10% bromine cyanogen insect amide oil-suspending agent and 60g it is above-mentioned spraying dedicated
After auxiliary agent mixing, it is slowly added to the water of 40g, being mixed to form spray liquid through oscillation, to can be used to unmanned plane spraying；
Missible oil dosage form spray liquid (EC): the above-mentioned spraying special assistant mixing of the 3% chlorine fluorine pyridine ester and 60g of 10g is weighed
Afterwards, it is slowly added to the water of 40g, being mixed to form spray liquid through oscillation, to can be used to unmanned plane spraying；
3, performance test
Spraying special assistant provided in this embodiment carries out 10 times of dilution shapes using the Multiple Pesticides dosage form now sold in the market
Water-in-oil emulsion is used at spraying, and 10 times of dilutions processing is carried out to identical pesticidal preparations using deionized water simultaneously and is used as pair
According to if Water-In-Oil blank control and each conduct of deionized water blank control are referring to processing.Mist droplet particle size test uses
HYPRO-015# standard fan nozzle carries out under the conditions of flow 1.0L/min.The measurement of 20min evaporation rate uses weight method,
It is carried out under 30 DEG C of constant temperatures in insulating box.
Each spray liquid carries out parametric measurement listed in table 3, measures results of property and is displayed in Table 3.
Table 3
As shown in Table 3, the special assistant that embodiment 3 provides is diluted mixing from the different formulations of pesticide listed in table 3
Afterwards, indoor simulation spraying operation, the water-in-oil emulsion performance parameter of acquisition are carried out using same model fluid pressure type Fan spray head
Majority is better than using the diluted pesticidal preparations of deionized water.Pure deionized water mist droplet particle size is smaller, but after adding pesticidal preparations
Mist droplet particle size is significantly greater than spray adjuvants dilution, this is because this spray adjuvants itself contain the auxiliary agents such as emulsifier, can more have
The physicochemical character of the performance pesticidal preparations of benefit.The diluted emulsion of this special assistant homogeneous stability in 1 hour stability test,
All spray liquids do not occur phenomena such as crystallization, flocculation.
The evaporation rate of the present embodiment spray adjuvants, surface tension, contact angle are respectively less than deionized water dilution control group.
Conductivity is between 0.02~0.05 μ s/cm；Spray liquid conductivity shows droplets particles outer layer quilt when being significantly less than tap water
Oil package, moisture is difficult to be evaporated, evaporation rate is small, is more advantageous to field spray.Surface tension, contact angle are lesser to be had
Effect promotes medical fluid to sprawl distribution on plant blade face, can more effectively play drug effect, reach prevention and treatment purpose.
Embodiment 4
1, a kind of spraying special assistant of agricultural plant protection unmanned plane is present embodiments provided.The spray adjuvants are by following components
Composition: soybean oil 77%, sorbitan fatty acid ester 8.5%, fatty alcohol polyoxyethylene ether 3.5%, propylene glycol block polyether
5%, n-butanol 6%.
The special assistant preparation method: according to spray adjuvants formula, soybean oil, sorbitan fatty acid are weighed respectively
After ester, fatty alcohol polyoxyethylene ether, propylene glycol block polyether, n-butanol mixing, use shearing homogenizing machine with 2000 revs/min
Rate is sheared 10 minutes, and form transparent and homogeneous form flies anti-spraying special assistant.The mixing ratio of this auxiliary agent and water is 1:0.5.
2, fly anti-spray liquid preparation method:
Suspending agent type spray liquid (SC): after the water mixing of 20% Rynaxypyr suspending agent and 23g for weighing 10g, delay
Slowly it is added to the above-mentioned spraying special assistant of 67g, being mixed to form spray liquid through oscillation, to can be used to unmanned plane spraying；
Oil suspending agent type spray liquid (OD): weigh 10g 10% bromine cyanogen insect amide oil-suspending agent and 67g it is above-mentioned spraying dedicated
After auxiliary agent mixing, it is slowly added to the water of 33g, being mixed to form spray liquid through oscillation, to can be used to unmanned plane spraying；
Missible oil dosage form spray liquid (EC): the above-mentioned spraying special assistant mixing of the 3% chlorine fluorine pyridine ester and 67g of 10g is weighed
Afterwards, it is slowly added to the water of 33g, being mixed to form spray liquid through oscillation, to can be used to unmanned plane spraying；
3, performance test
Spraying special assistant provided in this embodiment carries out 10 times of dilution shapes using the Multiple Pesticides dosage form now sold in the market
Water-in-oil emulsion is used at spraying, and 10 times of dilutions processing is carried out to identical pesticidal preparations using deionized water simultaneously and is used as pair
According to if Water-In-Oil blank control and each conduct of deionized water blank control are referring to processing.Mist droplet particle size test uses
HYPRO-015# standard fan nozzle carries out under the conditions of flow 1.0L/min.The measurement of 20min evaporation rate uses weight method,
It is carried out under 30 DEG C of constant temperatures in insulating box.
Each spray liquid carries out parametric measurement listed in table 4, measures results of property and is displayed in Table 4.
Table 4
As shown in Table 4, the special assistant that embodiment 4 provides is diluted mixing from the different formulations of pesticide listed in table 4
Afterwards, indoor simulation spraying operation, the water-in-oil emulsion performance parameter of acquisition are carried out using same model fluid pressure type Fan spray head
Majority is better than using the diluted pesticidal preparations of deionized water.
Pure deionized water mist droplet particle size is smaller, but mist droplet particle size is significantly greater than spray adjuvants dilution after adding pesticidal preparations
Liquid, this is because this spray adjuvants itself contain the auxiliary agents such as emulsifier, it can the more favorable physicochemical character for playing pesticidal preparations.This
The diluted emulsion of special assistant homogeneous stability in 1 hour stability test, all spray liquids do not occur crystallization, flocculation etc.
Phenomenon.
The evaporation rate of the present embodiment spray adjuvants, surface tension, contact angle are respectively less than deionized water dilution control group.
Between 9.81~12.63 μ s/cm, generated lower conductance generates part for soybean oil in process and leads conductivity
Electron ion causes；Spray liquid conductivity show when being significantly less than deionized water droplets particles outer layer by oil wrap up, moisture be difficult to by
Evaporation, evaporation rate are small, are more advantageous to field spray；The lesser medical fluid that can effectively facilitate of surface tension, contact angle is in plant
Distribution is sprawled on blade face, can more effectively play drug effect, reaches prevention and treatment purpose.
Embodiment 5
1, it present embodiments provides a kind of agricultural plant protection unmanned plane and is sprayed special assistant.The spray adjuvants are by following components group
At: methyl esterification soybean oil 76%, fatty alcohol polyoxyethylene ether-organophosphorus ester compound emulsifying agent 3.5%, sorbitan fatty
Acid esters 8.5%, hydroxyl poly-ethylene oxide block polymer 1.5%, propylene glycol block polyether 3.5%, n-butanol 7%.
The special assistant preparation method: according to above-mentioned auxiliary formula, methyl esterification soybean oil, fatty alcohol polyoxy second are weighed respectively
Alkene ether organophosphorus ester, sorbitan fatty acid ester, hydroxyl poly-ethylene oxide block polymer, propylene glycol block polyether, just
Butanol uses shearing homogenizing machine to shear 10 minutes with 2000 revs/min of rate, forms the winged anti-spraying special of transparent and homogeneous form
Used additives.The mixing ratio of this auxiliary agent and water is 1:1.25.
2, fly anti-spray liquid preparation method:
SC: after the water mixing of 20% Rynaxypyr suspending agent and 50g for weighing 10g, it is slowly added into the above-mentioned of 60g
Spraying special assistant, being mixed to form spray liquid through oscillation, to can be used to unmanned plane spraying；
OD: after the above-mentioned spraying special assistant mixing of 10% bromine cyanogen insect amide oil-suspending agent and 40g for weighing 10g, slowly
The water of 60g is added, being mixed to form spray liquid through oscillation, to can be used to unmanned plane spraying；
EC: after the above-mentioned spraying special assistant mixing of 3% chlorine fluorine pyridine ester and 40g for weighing 10g, it is slowly added to 60g's
Water, being mixed to form spray liquid through oscillation, to can be used to unmanned plane spraying；
3, performance test
The special assistant that the present embodiment 5 provides carries out 10 times of dilutions using the Multiple Pesticides dosage form now sold in the market and forms spray
Spray film, and 10 times of dilution processing are carried out as control, if Water-In-Oil blank to identical pesticidal preparations using deionized water simultaneously
Control and deionized water blank control each one as referring to processing.Mist droplet particle size test uses HYPRO-015# calibrating nozzle,
It is carried out under the conditions of flow 1.0L/min.20min evaporation rate measurement use weight method, in insulating box under 30 DEG C of constant temperatures into
Row.
Each spray liquid carries out parametric measurement listed in table 5, measures results of property and is displayed in Table 5.
Table 5
As shown in Table 5, the spraying special assistant that the present embodiment 5 provides carries out dilute from the different formulations of pesticide listed in table 5
It releases mixing and carries out spraying operation, indoor simulation spraying operation, the spray of acquisition are carried out using same model fluid pressure type Fan spray head
Spray film performance parameter majority is better than using the diluted pesticidal preparations of deionized water.
Pure deionized water mist droplet particle size is smaller, but mist droplet particle size is significantly greater than spray adjuvants dilution after adding pesticidal preparations
Liquid, this is because this spray adjuvants itself contain the auxiliary agents such as emulsifier, it can the more favorable physicochemical character for playing pesticidal preparations.This
The diluted emulsion of special assistant homogeneous stability in 1 hour stability test, all spray liquids do not occur crystallization, flocculation etc.
Phenomenon.
The evaporation rate of the present embodiment spray adjuvants, surface tension, contact angle are respectively less than deionized water dilution control group.
Conductivity is between 0.02~0.04 μ s/cm；Spray liquid conductivity shows droplets particles outer layer quilt when being significantly less than tap water
Oil package, moisture is difficult to be evaporated, evaporation rate is small, is more advantageous to field spray.Surface tension, contact angle are lesser to be had
Effect promotes medical fluid to sprawl distribution on plant blade face, can more effectively play drug effect, reach prevention and treatment purpose.
The diluted spray liquid of special assistant and deionized water dilution spray liquid for further looking at the offer of embodiment 5 are in field
Practical nanospray experiment is carried out as a result, can observe in Fig. 2 and spray dilution liquid more of the present invention and deionized water dilution are sprayed
Liquid plant blade face Pcnten-1 yne-4 situation after the practical spraying operation in field.As shown in Fig. 2 (a), provided by embodiment 5 spraying dilute
Release liquid flown it is anti-spraying after droplet be evenly distributed on rice leaf, droplet absorption immediately and rapid after touching rice leaf
Extravagance is come, while the osmotic absorption of effective ingredient also can be effectively helped under the action of methyl esterification soybean oil, favorably
In performance drug effect；As shown in Fig. 2 (b), after the conventional jet sprays being diluted using deionized water on rice leaf not
It was found that the phenomenon that inhaling appended spot or droplet with the presence of any droplet, adsorption effect of the droplet on plant blade face is undesirable.
Auxiliary agent of the present invention has many advantages, such as that water conservation, anti-evaporating, high-flash, adhesiveness is high, easily settled and use is safe, forms
Water-in-oil emulsion include oil and water, the pesticide of oil dispersed or water dispersion wide to the suitability of pesticidal preparations in use process
Preparation formulation can be effectively carried out dilution mixing, is suitable for plant protection drone and flies anti-spraying operation use.
The foregoing is merely certain embodiments of the present invention explanations, cannot be all in the claims in the present invention to limit the present invention
Any modification, replacement, improvement in context described in book etc., are all included in the scope of protection of the present invention.
Claims (9)
1. one kind flies anti-spray adjuvants, which is characterized in that by percentage to the quality, comprising: vegetable oil 70%~94%, emulsifier
5%~20%, assistant for emulsifying agent 1%~10%；
The vegetable oil is one of methyl oleate, methyl esterification soybean oil, soybean oil, laurel methyl oleate or a variety of compoundings
Combination；
The emulsifier is fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether-organophosphorus ester compound emulsifying agent, polyoxy second
Alkene sorbitan fatty acid ester, organophosphorus ester, sorbitan fatty acid ester, castor oil polyoxyethylene ether, alkyl phenol alkane
One of oxo-compound, alkyl glycosides, hydroxyl poly-ethylene oxide block polymer, propylene glycol block polyether a variety of are answered
With combination；
The assistant for emulsifying agent is one of polyethylene glycol, ethyl alcohol, isopropanol, n-butanol, isobutanol or a variety of combinations.
2. flying anti-spray adjuvants as described in claim 1, which is characterized in that by percentage to the quality, comprising: vegetable oil 70%
~85%, emulsifier 10%~20%, assistant for emulsifying agent 3%~10%；
The vegetable oil is one of methyl oleate, methyl esterification soybean oil, soybean oil or a variety of compounded combinations；
The emulsifier is fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether-organic phosphoric acid ester complexes, polyoxyethylene mistake
Water Span, organophosphorus ester, sorbitan fatty acid ester, castor oil polyoxyethylene ether, alkyl phenol alkoxy
One of compound, hydroxyl poly-ethylene oxide block polymer, propylene glycol block polyether or a variety of compounded combinations；
The assistant for emulsifying agent is one of isopropanol, n-butanol, isobutanol or a variety of combinations.
3. flying anti-spray adjuvants as claimed in claim 2, which is characterized in that by percentage to the quality, comprising: vegetable oil 70%
~80%, emulsifier 10%~20%, assistant for emulsifying agent 5%~10%；
The vegetable oil is one of methyl oleate, methyl esterification soybean oil or a variety of compounded combinations；
The emulsifier is fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether-organic phosphoric acid ester complexes, polyoxyethylene mistake
Water Span, organophosphorus ester, sorbitan fatty acid ester, castor oil polyoxyethylene ether, hydroxyl polycyclic oxygen second
One of alkane block polymer, propylene glycol block polyether or a variety of compounded combinations；
The assistant for emulsifying agent is one of n-butanol, isobutanol or a variety of compounded combinations.
4. the preparation method as described in any one of claims 1-3 for flying anti-spray adjuvants characterized by comprising will emulsify
After agent and assistant for emulsifying agent mixing, stirring and dissolving in vegetable oil is added, through 2000 turns~3000 revs/min of homogenizer shearings 5~20
The oil-based fluid that minute forms stable homogeneous flies anti-spray adjuvants to get described.
5. a kind of preparation method for flying anti-spray liquid characterized by comprising
Oil base dosage form or dry preparation pesticide and it is as described in any one of claims 1-3 fly anti-spray adjuvants premixing after, add water
Oscillation mixing, is made and flies anti-spray liquid；
After water base dosage form pesticide and water premixing, it is added that as described in any one of claims 1-3 to fly the oscillation of anti-spray adjuvants mixed
It closes, is made and flies anti-spray liquid.
6. preparation method as claimed in claim 5, which is characterized in that the oil base dosage form includes oil-suspending agent, missible oil, ultralow
Measure spraying finish；The water base dosage form includes aqueous emulsion, microemulsion, aqueous suspension agent, soluble liquid, liquor or aqua；It is described
Dry preparation includes water dispersible granules, wettable powder.
7. preparation method as claimed in claim 5, which is characterized in that the mixed volume ratio for flying anti-spray adjuvants and water phase is 1:
0.1~1.5.
8. flying anti-spray liquid as made from the described in any item preparation methods of claim 5-7.
Fly the application in anti-spray pesticide in unmanned plane 9. flying anti-spray liquid as claimed in claim 8.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110999903A (en) * | 2019-12-16 | 2020-04-14 | 上海交通大学 | Flying anti-spray solid auxiliary agent and preparation method thereof |
| CN111449063A (en) * | 2020-05-11 | 2020-07-28 | 河北天发生物科技有限公司 | Emulsifier and application thereof in processing of pesticide spray auxiliary agent |
| CN111528225A (en) * | 2020-05-26 | 2020-08-14 | 山东麒麟农化有限公司 | Synergistic composition for preventing and controlling vegetable plutella xylostella and preparation method thereof |
| CN112369413A (en) * | 2020-10-29 | 2021-02-19 | 中化化工科学技术研究总院有限公司 | Pre-emergence soil closed weeding auxiliary agent and preparation and use methods thereof |
| CN112931496A (en) * | 2021-01-27 | 2021-06-11 | 仲恺农业工程学院 | Special pesticide containing brucea javanica oil for flying defense and preparation method thereof |
| CN113040136A (en) * | 2021-03-17 | 2021-06-29 | 湖南嘉诚农业科技有限公司 | Aerial pesticide application auxiliary agent and preparation method and application thereof |
| CN113180039A (en) * | 2021-05-06 | 2021-07-30 | 苏州嘉佑生物科技有限公司 | Special auxiliary agent for unmanned aerial vehicle plant protection and flying prevention and preparation method and application thereof |
| CN113545342A (en) * | 2021-08-09 | 2021-10-26 | 南京科翼新材料有限公司 | Efficient auxiliary agent suitable for 25% pymetrozine-containing pesticide suspending agent |
| CN113796374A (en) * | 2021-01-27 | 2021-12-17 | 仲恺农业工程学院 | Pesticide containing neem oil special for flight control and preparation method thereof |
| CN113959267A (en) * | 2021-09-30 | 2022-01-21 | 国研软件股份有限公司 | Mist wall spray for interfering small aircraft, and using equipment and using method thereof |
| CN115191430A (en) * | 2022-06-02 | 2022-10-18 | 中国科学院化学研究所 | Application of biomass-based surfactant system as auxiliary agent in improving effective utilization rate of pesticide |
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| CN110999903A (en) * | 2019-12-16 | 2020-04-14 | 上海交通大学 | Flying anti-spray solid auxiliary agent and preparation method thereof |
| CN111449063A (en) * | 2020-05-11 | 2020-07-28 | 河北天发生物科技有限公司 | Emulsifier and application thereof in processing of pesticide spray auxiliary agent |
| CN111449063B (en) * | 2020-05-11 | 2022-09-30 | 河北天发生物科技有限公司 | Emulsifier and application thereof in processing of pesticide spray auxiliary agent |
| CN111528225A (en) * | 2020-05-26 | 2020-08-14 | 山东麒麟农化有限公司 | Synergistic composition for preventing and controlling vegetable plutella xylostella and preparation method thereof |
| CN112369413B (en) * | 2020-10-29 | 2021-07-16 | 中化化工科学技术研究总院有限公司 | Pre-emergence soil closed weeding auxiliary agent and preparation and use methods thereof |
| CN112369413A (en) * | 2020-10-29 | 2021-02-19 | 中化化工科学技术研究总院有限公司 | Pre-emergence soil closed weeding auxiliary agent and preparation and use methods thereof |
| CN112931496A (en) * | 2021-01-27 | 2021-06-11 | 仲恺农业工程学院 | Special pesticide containing brucea javanica oil for flying defense and preparation method thereof |
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| CN113040136A (en) * | 2021-03-17 | 2021-06-29 | 湖南嘉诚农业科技有限公司 | Aerial pesticide application auxiliary agent and preparation method and application thereof |
| CN113180039A (en) * | 2021-05-06 | 2021-07-30 | 苏州嘉佑生物科技有限公司 | Special auxiliary agent for unmanned aerial vehicle plant protection and flying prevention and preparation method and application thereof |
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| CN115191430A (en) * | 2022-06-02 | 2022-10-18 | 中国科学院化学研究所 | Application of biomass-based surfactant system as auxiliary agent in improving effective utilization rate of pesticide |
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