CN105284871A - Microcapsule suspending agent compounded by pyraclostrobin and chlorpyrifos and preparation method thereof - Google Patents
Microcapsule suspending agent compounded by pyraclostrobin and chlorpyrifos and preparation method thereof Download PDFInfo
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Abstract
The invention belongs to the technical field of agricultural agents, in particular to a microcapsule suspending agent compounded by pyraclostrobin and chlorpyrifos and a preparation method thereof. The microcapsule suspending agent includes the following components in weight percent: 1-15% of pyraclostrobin, 1-30% of chlorpyrifos, 10-35% of a solvent, 2-15% of a capsule skin material, 5-15% of an emulsifier, 0-5% of an antifreezing agent, 2-10% of a stabilizer, 0-2% of an antifoaming agent, 0-5% of warning colouration, 0-5% of a pH conditioning agent, 0-5% of a viscosity modifier and the balance of water; after the pesticide compounded by pyraclostrobin and chlorpyrifos is subjected to microencapsulation the pesticide can suppress the adverse effects of many environment factors, such as light, heat, air, rain, soil, microorganism and other chemical matters on the active ingredients of the pesticide, reduce the volatilization, decomposition, oxidation, degradation and running off rates of the pesticide, improve the stability of the pesticide and enlarge the application range.
Description
Technical field
The invention belongs to agriculture pharmaceutical techniques field, be specifically related to micro-capsule suspension of a kind of pyraclostrobin and chlorpyrifos mixture and preparation method thereof.
Background technology
Pyraclostrobin, has another name called pyraclostrobin, and chemical name is, methyl (N)-[[[1-(4-chlorobenzene) pyrazoles-3 base)-oxygen]-0-methoxyl group]-N-methoxymethyl carbamate.It is the bactericide of methoxy acrylic newly developed in recent years, and its mechanism of action is mitochondrial respiratory inhibitor, makes mitochondria can not produce and provide cell eubolism institute energy requirement, finally causes cell death.Pyraclostrobin fungicidal spectrum is wide, can control most of diseases such as Ascomycetes, Basidiomycetes, deuteromycetes, Oomycete.Have very strong inhibitory action to the growth of spore germination and leaf intramatrical mycelium, have protection and therapeutic activity, and have permeability and local systemic activity, the lasting period is long, resistance of rainwater washing against.Be widely used in preventing and treating the disease on wheat, paddy rice, peanut, grape, vegetables, potato, banana, lemon, coffee, fruit tree, walnut, tea tree, tobacco and ornamental plants, lawn and other field crops.
Pyraclostrobin missible oil shows there is good control efficiency to powdery mildew of cucumber, downy mildew and banana freckle, leaf spot through field control effectiveness test result.But cream preparation environmental pollution is larger.
Chlopyrifos is thiophosphate insecticides, it is acetylcholinesteraseinhibitors inhibitors, have tag, stomach toxicity, stifling triple role, all having favorable effect to chewing type multiple on paddy rice, wheat, cotton, fruit tree, vegetables, tea tree and sucking pest, is the first-selected medicament of alternative high-toxic organic phosphorus agricultural chemicals (as 1605, acephatemet, omethoate etc.).Insecticidal spectrum is wide, and the organic matter be easy in soil combines, and to soil insect special efficacy, the lasting period reaches more than 30 days.
CN102334509A discloses a kind of chlopyrifos and Fluoxastrobin mix suspending seed coat agent and preparation method thereof.Suspension seed-coating agent is a kind of flowable stable unit for uniform suspension be made up through wet pulverizing of active ingredient (insecticide, bactericide, plant growth regulator, trace element etc.), film forming agent (polyvinyl alcohol, polyethylene glycol, gelatin, gum Arabic, xanthans, macromolecular organic compound etc.), wetting agent, dispersant, thickener, warning colouration, filler and water.But its longevity of residure short, easy degraded and operation technique is complicated, big for environment pollution, residual high, dangerous to crop; And effectively can not prevent and treat soil insect.Therefore a kind of toxicity of continual exploitation is lower, good to underground pest controling effect, and can prevent and treat the pyraclostrobin of multiple diseases and the novel form of chlorpyrifos mixture.
Summary of the invention
The invention provides that a kind of lasting period is long, dosage is few, spraying time interval is large, saving of work and time, toxicity are lower, and effectively can prevent and treat the microcapsules suspension seed-coating agent of soil insect and multiple diseases simultaneously.
Technical scheme of the present invention is: the micro-capsule suspension of a kind of pyraclostrobin and chlorpyrifos mixture, and it comprises following component: pyraclostrobin, 1 ~ 15, chlopyrifos, 1 ~ 30, solvent, 10 ~ 35, capsule leather material, 2 ~ 15, emulsifier, 5 ~ 15, antifreeze, 0 ~ 5, stabilizing agent, 2 ~ 10, defoamer, 0 ~ 2, warning colouration, 0 ~ 5, pH value regulator, 0 ~ 5, viscosity modifier, 0 ~ 5, water, surplus; Above numerical value is each component percentage by weight shared in described micro-capsule suspension.
The preparation method of the micro-capsule suspension of above-mentioned pyraclostrobin and chlorpyrifos mixture, comprises the following steps:
Step 1, prepare raw material according to following component: pyraclostrobin, 1 ~ 15, chlopyrifos, 1 ~ 30, solvent, 10 ~ 35, capsule leather material, 2 ~ 15, emulsifier, 5 ~ 15, antifreeze, 0 ~ 5, stabilizing agent, 2 ~ 10, defoamer, 0 ~ 2, warning colouration, 0 ~ 5, pH value regulator, 0 ~ 5, viscosity modifier, 0 ~ 5, water, surplus; Above numerical value is each component percentage by weight shared in described micro-capsule suspension;
Step 2, pyraclostrobin and chlopyrifos are added solvent stirring and dissolving together with in stabilizing agent, until completely dissolved, add emulsifier, defoamer, capsule leather material, carry out high speed shear high speed homogenizing, be keep 2 hours ~ 24 hours under the environment of 30 DEG C ~ 80 DEG C in reaction temperature, make capsule leather material solidify encystation;
Step 3, after capsule leather material solidifies encystation completely, add appropriate pH value regulator adjust ph and antifreezing agent, viscosity modifier, warning colouration, after stirring and evenly mixing, namely make the micro-capsule suspension of pyraclostrobin and chlorpyrifos mixture;
Each step has all been implemented under atmospheric pressure state above.
Described pyraclostrobin and chlopyrifos are all materials well known in the art, can be buied by various commercial channel.
Described solvent be selected from toluene, dimethylbenzene, certain herbaceous plants with big flowers acid amides, methyl alcohol, ethanol, acetone, dimethyl formamide, cyclohexane, cyclohexanone, acetonitrile, ethyl acetate, n-butanol, isopropyl alcohol, n-octyl alcohol, lauryl alcohol, tetradecyl alchohol, dimethyl sulfoxide (DMSO), mixed benzene, solvent naphtha 100, solvent naphtha 150 or solvent naphtha 200 one or more.
Described emulsifier is selected from aliphatic alcohol sulfate, alkyl sulfate, alkyl alcohol ethoxylates sodium sulphate, alkyl phenol polyethenoxy ether sodium sulfate, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, sodium alkyl sulfonate, sodium alkyl benzene sulfonate, alkyl benzene calcium sulfonate, alkylnaphthalene sulfonate, dialkyl succinylsuccinate sulfonate, disecoctylmaleate sodium sulfonate, monoalkyl phenyl APEO succinic acid sodium sulfonate, fatty alcohol ethylene oxide adduct sulfonate, alkylphenol formaldehyde condensation product ethylene oxide adduct sulfonate, alkyl amide taurate, polyoxyethylene nonylphenol ether, styrylphenol polyoxyethyl ether, aliphatic alcohol polyethenoxy base ether, alkylphenol-polyethenoxy base ether, one or more in phenethyl phenol polyoxyethylene poly-oxygen propylene aether or castor oil polyoxyethylene ether.
Described antifreeze be selected from ethylene glycol, propane diols, glycerine, polyethylene glycol or sorbierite one or more.
Described stabilizing agent be selected from triphenyl phosphate, epoxidized soybean oil, epoxychloropropane, BHT, BHA, citric acid, castor oil, salicylic acid, sorb sodium alkoxide, butyl glycidyl ether, cresyl glycidyl ether, polyethylene glycol diglycidyl ether, adipic acid or succinic acid one or more.
Described defoamer be selected from silicone oil, silicone, natural oil lipid, polyethers, the higher alcohols of C12 ~ C22 or C7 ~ C9 alcohols one or more.
Described pH value regulator be selected from glacial acetic acid, propionic acid, hydrochloric acid, phosphoric acid, citric acid, sodium hydroxide, ammoniacal liquor or triethanolamine one kind of multiple.
Described capsule leather material be selected from alginate, pectin, gum Arabic, gelatin, formaldehyde, urea, ethyl cellulose, cellulose acetate butyl ester, polyvinyl chloride, polyvinyl alcohol, polyvinyl acetate, styrol maleic acid copolymers, polyamide, polyurethanes, polyurethane, poly-sulfonamides, vulcabond or polyisocyanates, dihydroxylic alcohols or polyethylene glycols, polyureas, polyester, Merlon, nylon one or more.
Described warning colouration be selected from the oxide of metal, sulphide, sulphate, chromate, molybdate, etc. one or more in salt and carbon black, AZOpigments, phthalein blue or green pigment, Heterocyclics Pigments, mordant pigment, dyestuff, fluorescent whitening agent, fluorescent pigment and water-soluble dye.
Described viscosity modifier be selected from xanthans, methylcellulose, carboxymethyl cellulose, hydroxyethylcellulose, polyvinyl alcohol, Sodium Polyacrylate, polyvinyl acetate, bentonite, aluminium-magnesium silicate one or more.
One or more in running water, distilled water or deionized water of described wet concentration.
Beneficial effect of the present invention is:
1, inhibit many environmental factors if light, heat, air, rainwater, soil, microorganism and other chemical substance are to the adverse effect of pesticide activity component after pyraclostrobin and chlorpyrifos mixture pesticide micro capsule, reduce the speed of the volatilization of agricultural chemicals, decomposition, oxidation, degraded and loss, thus enhance the stability of agricultural chemicals, expand the scope of application.
2, after pesticide micro capsule, because capsule content in microcapsules SC is generally between 1 ~ 45%, all the other are WATER AS FLOW MEDIUM, compare with missible oil, in the capsule-core that active ingredient concentrates on.Due to the effect of suspending agent, adhesive force is strengthened, and improves control efficiency.
3, because microcapsule formulations has Co ntrolled release ability, thus can make that high-toxic pesticide is low to be poisoned, reduce the acute toxicity of former medicine.After being processed into microcapsule formulations, the volatility of agricultural chemicals is subject to very large suppression, and original peculiar smell is also masked, decreases the excitant to people and animals, the pollution to environment and the poisoning to crops, and the toxicity of preparation to fish is also greatly alleviated.No matter namely to people and animals or ecotope, all reliably safer.
4, after microencapsulation, its active ingredient can manual control by the permeability of cyst material, and slow release speed can design in advance.Due to the protection of capsule skin, active ingredient degradation speed slows down, and the agricultural chemicals lasting period can extend 3-10 times.Lasting period extends, and just can improve control efficiency, reduces spraying times, reduces agricultural cost.
Embodiment
The present invention is illustrated below in conjunction with embodiment.In embodiment, percentage is all weight percentage, and in following embodiment, pyraclostrobin is the former medicine of pyraclostrobin of 95% from pyraclostrobin mass percentage; Chlopyrifos is the former medicine of chlopyrifos of 97% from chlopyrifos mass percentage.
Embodiment 1:6% pyraclostrobin chlorpyrifos microcapsule suspension agent
Pyraclostrobin 1%; Chlopyrifos 5%; Toluene selected by solvent, and consumption is 8%; Emulsifier selects castor oil polyoxyethylene ether and polyoxyethylene nonylphenol ether, and consumption is respectively 3% and 3%; Capsule leather material selects gelatin, gum Arabic and formaldehyde (concentration 37%), and consumption is respectively 1%, gum Arabic 1% and 2%; PH value regulator conditioning agent selects acetic acid and sodium hydroxide, and ethylene glycol selected by antifreeze, and consumption is 4%; Xanthans selected by viscosity modifier, consumption 0.2%; Wet concentration running water, surplus.
Preparation method is: pyraclostrobin and chlopyrifos are joined in toluene and dissolve completely, add emulsifier to stir, then high speed shear is added after water 0.5 hour, adding gelatin and gumwater again, drip acetic acid and regulate pH value, is keep 2 hours ~ 24 hours under the environment of 30 DEG C ~ 80 DEG C in reaction temperature, cooling adds formaldehyde crosslinking solidification, and regulate pH value to neutral, add antifreeze glycol and viscosity modifier xanthans, continue stirring and evenly mixing and namely obtain product.
Embodiment 2:20% pyraclostrobin chlopyrifos microcapsule suspending agent
Pyraclostrobin 5%; Chlopyrifos 15%; Solvent selects dimethylbenzene and cyclohexanone, and consumption is respectively 10% and 5%; Emulsifier selects fatty alcohol-polyoxyethylene ether and styrylphenol polyoxyethyl ether, and consumption is respectively 2% and 4%; Capsule leather material selects formaldehyde (content 37%), urea, and consumption is respectively 8% and 5%; PH value regulator conditioning agent selects hydrochloric acid and sodium hydroxide, and in right amount, glycerine selected by antifreeze, and consumption is 4%; Aluminium-magnesium silicate selected by viscosity modifier, consumption 1%; Warning colouration selects oil-soluble bright red, consumption 2%, wet concentration running water, surplus.
Preparation method is: pyraclostrobin and chlopyrifos are joined in dimethylbenzene and cyclohexanone and dissolve completely, add emulsifier to stir, then high speed shear is added after water 0.5 hour, add urea formadehyde mixed solution again, drip hydrochloric acid and regulate pH value, heat up 70 degree of insulations 1.5 hours, then adds sodium hydroxide and regulate pH value to neutral.Cooling down to 40 spends left and right, adds antifreezing agent glycerine, viscosity modifier aluminium-magnesium silicate and warning colouration, continues stirring and evenly mixing and namely obtains product.
Embodiment 3:40% pyraclostrobin chlopyrifos microcapsule suspending agent
Pyraclostrobin 10%; Chlopyrifos 30%; Solvent selects toluene and acetonitrile, consumption difference 15% and 10%; Emulsifier selects polyoxyethylene nonylphenol ether and styrylphenol polyoxyethylene ether, and consumption is respectively 4% and 2%; Capsule leather material selects toluene di-isocyanate(TDI), PEG400 and polyvinyl alcohol, and consumption is respectively 2%, 9% and 1%; ; Xanthans selected by viscosity modifier, consumption 0.1%; Warning colouration selects rhodamine toner, consumption 0.1%, and ethylene glycol selected by antifreeze, and consumption is 4%; Wet concentration running water, surplus.
Preparation method is: pyraclostrobin and chlopyrifos are joined in dimethylbenzene, acetonitrile and toluene di-isocyanate(TDI) and dissolve completely, add emulsifier to stir, then high speed shear is added after water 0.5 hour, slow dropping PEG400, dropwise rear continuation stirring and add polyvinyl alcohol after 10 minutes, react after 30 minutes, add antifreeze glycol, viscosity modifier xanthans and warning colouration, continue stirring and evenly mixing and namely obtain product.
For better verifying result of implementation of the present invention, we have carried out field control effectiveness test for peanut damage by disease and insect, and result of the test is shown in Table 1.Wherein embodiment 1 is 6% chlopyrifos pyraclostrobin microcapsules suspension seed-coating agent, embodiment 2 is 20% chlopyrifos pyraclostrobin microcapsules suspension seed-coating agent, embodiment 3 is 40% chlopyrifos pyraclostrobin microcapsules suspension seed-coating agent, comparative example 1 is 20% chlopyrifos (15%) pyraclostrobin (5%) suspension seed-coating agent, comparative example 2 is (30% chlorpyrifos aqueous emulsion 300ml+10% pyraclostrobin suspending agent 100ml)/80kg peanut seed (chlopyrifos: pyraclostrobin=9:1), separately establishes clear water blank.Each process repetition 4 times, totally 24 process communities.
Field investigation is 15 days and investigation harvest time (about 120 days) after peanut is emerged, and every community " Z " font 5 sampling, investigates peanut total strain number and killed strain number in sampling point respectively, calculate killed strain preventive effect.
The incidence of disease (%)=(the seedling number of the seedling number/investigation of morbidity) × 100
Control efficiency (%)=[(the check plot incidence of disease-treatment region incidence of disease)/check plot incidence of disease] × 100
Table 1 various dose medicament is to peanut growth phase extermination of disease and insect pest effect
As can be seen from the result of the test of table 1, peanut seed is after test medicine process, peanut is emerged latter 14 days, each treatment agent is little to peanut extermination of disease and insect pest difference on effect, but along with the peanut growth phase extends to harvest time, each dosage process of embodiment 1, embodiment 2 and embodiment 3 to the extermination of disease and insect pest effect of peanut far away higher than comparative example 1 and comparative example 2, after illustrating that pyraclostrobin and chlopyrifos are processed into micro-capsule suspension, delay the rate of release of medicament, drug effect is extended.
Claims (9)
1. a micro-capsule suspension for pyraclostrobin and chlorpyrifos mixture, it comprises following component: pyraclostrobin, 1 ~ 15, chlopyrifos, 1 ~ 30, solvent, 10 ~ 35, capsule leather material, 2 ~ 15, emulsifier, 5 ~ 15, antifreeze, 0 ~ 5, stabilizing agent, 2 ~ 10, defoamer, 0 ~ 2, warning colouration, 0 ~ 5, pH value regulator, 0 ~ 5, viscosity modifier, 0 ~ 5, water, surplus; Above numerical value is each component percentage by weight shared in described micro-capsule suspension.
2. micro-capsule suspension according to claim 1, is characterized in that: described solvent is one or more in toluene, dimethylbenzene, certain herbaceous plants with big flowers acid amides, methyl alcohol, ethanol, acetone, dimethyl formamide, cyclohexane, cyclohexanone, acetonitrile, ethyl acetate, n-butanol, isopropyl alcohol, n-octyl alcohol, lauryl alcohol, tetradecyl alchohol, dimethyl sulfoxide (DMSO), mixed benzene, solvent naphtha 100, solvent naphtha 150 or solvent naphtha 200.
3. micro-capsule suspension according to claim 1, it is characterized in that: described emulsifier is aliphatic alcohol sulfate, alkyl sulfate, alkyl alcohol ethoxylates sodium sulphate, alkyl phenol polyethenoxy ether sodium sulfate, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, sodium alkyl sulfonate, sodium alkyl benzene sulfonate, alkyl benzene calcium sulfonate, alkylnaphthalene sulfonate, dialkyl succinylsuccinate sulfonate, disecoctylmaleate sodium sulfonate, monoalkyl phenyl APEO succinic acid sodium sulfonate, fatty alcohol ethylene oxide adduct sulfonate, alkylphenol formaldehyde condensation product ethylene oxide adduct sulfonate, alkyl amide taurate, polyoxyethylene nonylphenol ether, styrylphenol polyoxyethyl ether, aliphatic alcohol polyethenoxy base ether, alkylphenol-polyethenoxy base ether, one or more in phenethyl phenol polyoxyethylene poly-oxygen propylene aether or castor oil polyoxyethylene ether.
4. micro-capsule suspension according to claim 1, is characterized in that: described stabilizing agent is one or more in triphenyl phosphate, epoxidized soybean oil, epoxychloropropane, BHT, BHA, citric acid, castor oil, salicylic acid, sorb sodium alkoxide, butyl glycidyl ether, cresyl glycidyl ether, polyethylene glycol diglycidyl ether, adipic acid or succinic acid.
5. micro-capsule suspension according to claim 1, is characterized in that: described defoamer is one or more in silicone oil, silicone, natural oil lipid, polyethers, the higher alcohols of C12 ~ C22 or C7 ~ C9 alcohols.
6. micro-capsule suspension according to claim 1, is characterized in that: described capsule leather material is one or more in alginate, pectin, gum Arabic, gelatin, formaldehyde, urea, ethyl cellulose, cellulose acetate butyl ester, polyvinyl chloride, polyvinyl alcohol, polyvinyl acetate, styrol maleic acid copolymers, polyamide, polyurethanes, polyurethane, poly-sulfonamides, vulcabond or polyisocyanates, dihydroxylic alcohols or polyethylene glycols, polyureas, polyester, Merlon, nylon.
7. micro-capsule suspension according to claim 1, is characterized in that: described warning colouration be the oxide of metal, sulphide, sulphate, chromate, molybdate, etc. one or more in salt and carbon black, AZOpigments, phthalein blue or green pigment, Heterocyclics Pigments, mordant pigment, dyestuff, fluorescent whitening agent, fluorescent pigment and water-soluble dye.
8. micro-capsule suspension according to claim 1, is characterized in that: described viscosity modifier is one or more in xanthans, methylcellulose, carboxymethyl cellulose, hydroxyethylcellulose, polyvinyl alcohol, Sodium Polyacrylate, polyvinyl acetate, bentonite, aluminium-magnesium silicate.
9. the micro-capsule suspension according to any one of claim 1-8, its preparation method comprises the following steps:
Step 1, prepare raw material according to following component: pyraclostrobin, 1 ~ 15, chlopyrifos, 1 ~ 30, solvent, 10 ~ 35, capsule leather material, 2 ~ 15, emulsifier, 5 ~ 15, antifreeze, 0 ~ 5, stabilizing agent, 2 ~ 10, defoamer, 0 ~ 2, warning colouration, 0 ~ 5, pH value regulator, 0 ~ 5, viscosity modifier, 0 ~ 5, water, surplus; Above numerical value is each component percentage by weight shared in described micro-capsule suspension;
Step 2, pyraclostrobin and chlopyrifos are added solvent stirring and dissolving together with in stabilizing agent, until completely dissolved, add emulsifier, defoamer, capsule leather material, carry out high speed shear high speed homogenizing, be keep 2 hours ~ 24 hours under the environment of 30 DEG C ~ 80 DEG C in reaction temperature, make capsule leather material solidify encystation;
Step 3, after capsule leather material solidifies encystation completely, add appropriate pH value regulator adjust ph and antifreezing agent, viscosity modifier, warning colouration, after stirring and evenly mixing, namely make the micro-capsule suspension of pyraclostrobin and chlorpyrifos mixture;
Each step has all been implemented under atmospheric pressure state above.
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Cited By (9)
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| CN105961384A (en) * | 2016-06-03 | 2016-09-28 | 安徽广信农化股份有限公司 | Method for preparing pyraclostrobin micro-capsule through re-coagulation method |
| CN106070203A (en) * | 2016-06-03 | 2016-11-09 | 安徽广信农化股份有限公司 | A kind of preparation method of Fluoxastrobin microcapsule |
| CN106508953A (en) * | 2016-10-11 | 2017-03-22 | 常州市鼎日环保科技有限公司 | Preparation method of degradable chlorpyrifos sustained release microsphere |
| CN106818731A (en) * | 2016-12-14 | 2017-06-13 | 严帝 | A kind of pyraclostrobin of argy wormwood essential oil synergy, chlorpyrifos mixture microcapsules and preparation method thereof |
| CN107497379A (en) * | 2017-09-14 | 2017-12-22 | 东北林业大学 | A kind of isocyanate microcapsule and preparation method thereof |
| CN108464309A (en) * | 2018-05-30 | 2018-08-31 | 广东和利农种业股份有限公司 | Contain pyraclostrobin, fluopyram and the seed treatment compositions of chlopyrifos, preparation method and applications |
| CN108849881A (en) * | 2018-06-19 | 2018-11-23 | 江苏邦盛生物科技有限责任公司 | A kind of Fluoxastrobin microcapsule suspending agent and preparation method thereof |
| CN114732009A (en) * | 2022-06-13 | 2022-07-12 | 山东百农思达生物科技有限公司 | Preparation method of water dispersible granules containing pyraclostrobin and dimethomorph |
| CN114982774A (en) * | 2022-07-12 | 2022-09-02 | 河北八源生物制品有限公司 | Multifunctional compound seed treatment suspending agent and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105961384A (en) * | 2016-06-03 | 2016-09-28 | 安徽广信农化股份有限公司 | Method for preparing pyraclostrobin micro-capsule through re-coagulation method |
| CN106070203A (en) * | 2016-06-03 | 2016-11-09 | 安徽广信农化股份有限公司 | A kind of preparation method of Fluoxastrobin microcapsule |
| CN106508953A (en) * | 2016-10-11 | 2017-03-22 | 常州市鼎日环保科技有限公司 | Preparation method of degradable chlorpyrifos sustained release microsphere |
| CN106818731A (en) * | 2016-12-14 | 2017-06-13 | 严帝 | A kind of pyraclostrobin of argy wormwood essential oil synergy, chlorpyrifos mixture microcapsules and preparation method thereof |
| CN107497379A (en) * | 2017-09-14 | 2017-12-22 | 东北林业大学 | A kind of isocyanate microcapsule and preparation method thereof |
| CN107497379B (en) * | 2017-09-14 | 2019-07-30 | 东北林业大学 | A kind of isocyanate microcapsule and preparation method thereof |
| CN108464309A (en) * | 2018-05-30 | 2018-08-31 | 广东和利农种业股份有限公司 | Contain pyraclostrobin, fluopyram and the seed treatment compositions of chlopyrifos, preparation method and applications |
| CN108849881A (en) * | 2018-06-19 | 2018-11-23 | 江苏邦盛生物科技有限责任公司 | A kind of Fluoxastrobin microcapsule suspending agent and preparation method thereof |
| CN114732009A (en) * | 2022-06-13 | 2022-07-12 | 山东百农思达生物科技有限公司 | Preparation method of water dispersible granules containing pyraclostrobin and dimethomorph |
| CN114982774A (en) * | 2022-07-12 | 2022-09-02 | 河北八源生物制品有限公司 | Multifunctional compound seed treatment suspending agent and preparation method thereof |
| CN114982774B (en) * | 2022-07-12 | 2023-09-22 | 河北八源生物制品有限公司 | Multifunctional compound seed treatment suspending agent and preparation method thereof |
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