CN109430287A - Slow-release seed treatment dry powder doses and preparation method thereof - Google Patents
Slow-release seed treatment dry powder doses and preparation method thereof Download PDFInfo
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- CN109430287A CN109430287A CN201811554251.9A CN201811554251A CN109430287A CN 109430287 A CN109430287 A CN 109430287A CN 201811554251 A CN201811554251 A CN 201811554251A CN 109430287 A CN109430287 A CN 109430287A
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- seed treatment
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- metalaxyl
- carbosulfan
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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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
- A01N47/24—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing the groups, or; Thio analogues thereof
-
- 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
-
- 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
-
- 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
- A01N25/12—Powders or granules
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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
- A01N25/26—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 in coated particulate form
- A01N25/28—Microcapsules or nanocapsules
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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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/44—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
- A01N37/46—N-acyl derivatives
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/36—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/647—Triazoles; Hydrogenated triazoles
- A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
Abstract
The invention belongs to field of pesticide preparation, more particularly to a kind of slow-release seed treatment dry powder doses, the composition and mass percent of the slow-release seed treatment dry powder doses are as follows: Metalaxyl-M (folding hundred) 5%~20%, carbosulfan (folding hundred) 20%~35%, pesticide C (folding hundred) 5%~20%, amino resins 1.75%~4.69%, emulsifying dispersant 3%~7.75%, wetting dispersing agent 10%~25%, appropriate pH adjusting agent, appropriate defoaming agent, toner 0.4%~1.5% is guarded against, inert carrier supplies 100%.Pesticide C therein is fludioxonil, Tebuconazole or hymexazol.Slow-release seed treatment dry powder doses of the present invention simultaneous can harness the river the underground and aboveground disease pest of the crops such as rice, cotton, and the lasting period is long, and utilization rate is high.
Description
Technical field
The invention belongs to field of pesticide preparation, and in particular to a kind of slow-release seed treatment dry powder doses and preparation method thereof.
Background technique
For a long time, an important factor for subterranean pest-insect and soil-borne disease are puzzlement agricultural production sustainable growths, because of its generation
Seriously, difficulty of prevention and cure is big for hidden, harm, is commonly called as " difficult worm " and " difficult disease ".In recent years, greatly developing with industrialized agriculture, ground
Lower disease pest harm is on the rise, and often results in the disconnected ridge that is short of seedling, large area dead seedling, or even total crop failure total crop failure.Most subterranean pest-insects are such as old
Tiger, grub, mole cricket, wireworm, root maggot, root aphid etc. have more stable ecological environment, and life cycle is long, in spring, Qiu Liangji shape
At hazard boom.Soil-borne disease mainly has damping-off, samping off, base rot disease etc., the seed of crop of mainly causing harm, underground part and
Subaerial rhizome portion.Generally use the harm of disease pest under seed treatment control crop field.
Metalaxyl-M is also known as mefenoxam, is the active isomer of metalaxyl, belongs to phenylamide systemic fungicide.Smart first frost
The selectivity of spirit is strong, only efficient to oomycetes diseases, has special efficacy to downy mildew therein, phytophthora, pythium spp.Have to disease
Protection, treatment and eradicant action, have very strong uptake and transmission to act on, i.e., medicament can be to top, base portion and side after entering plant
To conduction, thus various crop kind seedling stage and growth period disease can be prevented and treated with foliar spray, seed treatment or pouring root, especially
A variety of soil-borne diseases, such as Achlya spp disease, bakanae disease, damping-off, root rot, cotton samping off of soybean and peanut etc..
Carbosulfan belongs to carbamate chemicals for agriculture, and the mechanism of action is to inhibit insect acetylcholinesterases and carboxylic acid
The activity of esterase causes the accumulation of acetylcholine and carboxylate, influences the normal nerve conduction of insect and lethal.It is that carbofuran is low
Poison one of substitute species, Oral toxicity is medium, and percutaneous toxicity is low, no cumulative toxicity, no lopsided, carcinogenic and mutagenesis.Fourth sulphur
Carbofuran has interior suction, stomach toxicity and action of contace poison concurrently, belongs to highly effective and safe, insecticidal/acaricidal agent easy to use, its main feature is that fat-soluble,
Absorbability is good, penetration is strong, effect is rapid, residual is low, using safe etc., effective to adult and larva, to natural enemy and beneficial
Bio-toxicity is lower, harmless to crop.It is particularly suitable for preventing and treating various crop kind seedling stage and growth period by seed treatment or pouring root
Pest.Such as cotton aphid, bollworm, chlorita biguttula, rice thrips, rice borer, rice leafhopper, planthopper and cutworm, acupuncture needle
The various soil insects such as worm, mole cricket, grub, root maggot.
In the prior art, Metalaxyl-M and carbosulfan are usually prepared into seed treatment, Metalaxyl-M is prepared into
Seed treatment suspending agent or seed treatment emulsion, or it is multiple with Tebuconazole, fludioxonil, hymexazol, fluorine azoles ring bacterium amine, probenazole etc.
It is made into the seed treatment suspending agent or seed treatment liquor of binary or ternary, crop is prevented and treated by seed dressing or seed pelleting processing
A variety of underground diseases, carbosulfan are processed into seed treatment dry powder doses or seed treatment emulsion, pass through the anti-Zhiduo County of Dressing
Under kind of crop field and overground part pest.But these two types of pesticides are at the seed treatment emulsion, seed of use prior art preparation
In reason suspending agent, seed treatment liquor, the pesticide activity component after application in preparation is easy drop because being directly exposed in environment
Solution failure, causes bioavailability low, drug effect retention period is short, cannot give full play to control efficiency.
To reach permanent control efficiency, contact toxicity when Pesticidal products use is reduced, the prior art is usually smart first
White spirit or carbosulfan are prepared into micro-capsule suspension or with other agriculture chemical compoundings at microcapsule suspension-aqueous emulsion or micro-capsule
Suspension-suspending agent.105076144 A of Chinese patent CN discloses a kind of containing the suspension of the microcapsules of Metalaxyl-M and Fluoxastrobin
Agent, the polyurethane generated using polymethylene multi-phenenyl isocyanate and glycol reaction is cyst material, 105076128 A of CN
Disclose a kind of microcapsule suspending agent containing fosthiazate and Metalaxyl-M, cyst material is the mixed of gelatin and high molecular cellulose
Object is closed to solidify through formaldehyde or glutaraldehyde.This two technologies select dimethylbenzene, cyclohexanone, ethyl acetate, N- methylpyrrole
Alkanone, diethyl phthalate, dibutyl phthalate, in Solvesso100, Solvesso150, Solvesso200
One or more of mixtures be capsule-core solvent.102210315 B of Chinese patent CN describes a kind of using Lauxite system
The method for preparing standby carbosulfan microcapsule suspending agent.103365155 A of Chinese patent CN discloses a kind of carbosulfan
With chlopyrifos and abamectin compounded micro-capsule suspension, it is characterized in that select toluene, dimethylbenzene, solvent naphtha, rosin-based plant
The combination of one or more of oil etc. is as capsule-core solvent, capsule skin material selection polyisocyanates, cyclodextrin, polyethylene
The combination of one or more of alcohol, polyacrylic acid, bisphenol A type epoxy resin, sodium alginate etc..
On the one hand seed treatment dry powder doses in the prior art after administration the pesticide activity component in preparation because directly sudden and violent
Easy degradation failure, lasting period are short in the environment for dew, poor to the control efficiency of crop middle and later periods disease pest, on the other hand existing skill
The slow-release seed treatment of art is mostly the liquid preparation containing organic solvent, has adverse effect to farmland ecological environment, preparation produces
The packaging of product, storage, transportation cost are higher.
Summary of the invention
Metalaxyl-M and carbosulfan all have good systemic activity, in use, can be direct as seed treatment
Kill soil and seeds surface germ and pest, can be also absorbed into plant by the young root of seed and crop, kill or
Inhibit the intracorporal germ of plant and pest, or kill or inhibit the disease pest at the other positions of damage to crops, especially with plant juice
Liquid is the sucking pest of food.But the half-life period of Metalaxyl-M in the soil is 10 days or so, carbosulfan is in soil
Half-life period in earth less than 5 days, using the seed treatment dry powder doses pesticide activity in preparation after administration of prior art preparation
Ingredient is easy degradation failure because being directly exposed in environment, and bioavailability is low, cannot give full play to pesticide-germicide effect.
It is existing to overcome the object of the present invention is to provide a kind of slow-release seed treatment dry powder doses and preparation method thereof
The easy failure of degrading of conventional seed treatment dry powder doses, lasting period are short in technology, poor to the control efficiency of crop middle and later periods disease pest, together
When overcome in slow-release type microcapsule preparation in the prior art containing to farmland ecological environment have dysgenic organic solvent and
The packaging of the liquid preparations such as microcapsule suspending agent, microcapsule suspension-suspoemulsion and microcapsule suspension-suspendinagent agent, storage, transportation cost are high
Technical problem.
For achieving the above object, one aspect of the present invention, provides a kind of slow-release seed treatment dry powder doses, composition at
Part and mass percent are as follows: Metalaxyl-M (folding hundred) 5%~20%, carbosulfan (folding hundred) 20%~35%, pesticide C (folding
Hundred) 5%~20%, amino resins 1.75%~4.69%, emulsifying dispersant 3%~7.75%, wetting dispersing agent 10%~
25%, appropriate pH adjusting agent, appropriate defoaming agent guards against toner 0.4%~1.5%, and inert carrier supplies 100%.
Pesticide C is one of fludioxonil, Tebuconazole or hymexazol in the slow-release seed treatment dry powder doses；It is described
Amino resins be one or both of urea-formaldehyde resin, melamine resin mixture；The emulsifying dispersant
For styrene maleic anhydride copolymer；The wetting dispersing agent is one or both of lignosulfonates, polycarboxylate
Mixture；The pH adjusting agent is sodium hydroxide and citric acid；The warning toner is general pesticide seed treatment institute
With the ultra-micro powder of various colors；The inert carrier is calcined kaolin or diatomite.
The mass percent of each component is also possible to Metalaxyl-M (folding in the slow-release seed treatment dry powder doses
Hundred) 0.1%~50%, carbosulfan (folding hundred) 0.1%~50%, pesticide C (folding hundred) 0.1%~50%, amino resins
0.1%~15%, emulsifying dispersant 0.1%~20%, wetting dispersing agent 5~40% guard against toner 0.1%~3%, and pH is adjusted
Appropriate agent, appropriate defoaming agent, inert carrier supply 100%.
Another aspect of the present invention provides a kind of preparation method of slow-release seed treatment dry powder doses, including following three steps
It is rapid:
The preparation of the microcapsules water slurry of step 1) Metalaxyl-M and carbosulfan mixture
Metalaxyl-M pesticide is uniformly mixed with carbosulfan and is prepared into oily phase, emulsifying dispersant is dissolved in water
In be prepared into water phase；The water phase and the oil are mutually mixed into shear treatment, forming average grain diameter is 0.5 μm~3.0 μm
O/W type lotion；The amino resins performed polymer into the O/W type lotion is added with stirring acidic ph modifier and in-situ polymerization occurs
Reaction generates amino resins (i.e. the cyst wall substances of microcapsules), is deposited on the core material object being made of Metalaxyl-M and carbosulfan
The surface of matter, elevated cure up to Metalaxyl-M and carbosulfan mixture microcapsules water slurry.
The preparation of step 2) pesticide C water slurry
Pesticide C, wetting and dispersing auxiliary agent, defoaming agent, warning toner, inert carrier and water are uniformly mixed, are sanded into solid
The pesticide C water slurry that the average grain diameter of substance is 0.5 μm~3.0 μm.
The preparation of step 3) slow-release seed treatment dry powder doses
By the microcapsules water slurry and the resulting agriculture of step 2 of step 1 gained Metalaxyl-M and carbosulfan mixture
Medicine C water slurry is uniformly mixed, and pH adjusting agent is added and adjusts mixture ph to 6~8, spray-dried moisture of sloughing is up to this
Invention slow-release seed treatment dry powder doses.
Metalaxyl-M described in step 1) and carbosulfan, can also be fresh by the miaow after phoxim or heating melting
Other fusing points such as amine, pyraclostrobin, difenoconazole, chlopyrifos, lambda-cyhalothrin, cyfloxylate are lower than 70 DEG C of pesticide
It is substituted；Emulsifying dispersant is styrene maleic anhydride copolymer, or sodium lignin sulfonate, polycarboxylate, Arab
Replaced the high molecular surfactants such as glue, sodium alginate, gelatin, carboxymethyl cellulose salt；The amino resins performed polymer
For the mixture of one or both of urea-formaldehyde resin performed polymer, melamine resin performed polymer, or change
The urea-formaldehyde resin performed polymer of property, modification the amino resins performed polymer such as melamine resin performed polymer replaced；Institute
Stating acidic ph modifier is citric acid, or the acidity such as hydrochloric acid, phosphoric acid, sulfuric acid, acetic acid, ammonium acetate, benzoic acid, benzene sulfonic acid
Replaced substance.
Pesticide C described in step 2 is one of fludioxonil, Tebuconazole or hymexazol, or fluorine azoles ring bacterium amine,
Replaced probenazole, Fluoxastrobin, Rynaxypyr, Diacloden, imidacloprid, clothianidin etc.；The wetting and dispersing auxiliary agent is
The mixture of one or more of sodium lignin sulfonate, polycarboxylate, or alkyl sulfate, alkyl sulfonic acid
Replaced salt, alkyl benzene sulfonate etc.；The inert carrier is calcined kaolin or diatomite, or lightweight carbonic acid
One or both of calcium, white carbon black, talcum powder, bentonite, atlapulgite, mica powder, ammonium sulfate, sodium sulphate, urea, starch
Mixture etc. replaced；The warning toner is the ultra-micro powder of various colors used in general pesticide seed treatment；Institute
The defoaming agent stated is organic silicon defoamer.
PH adjusting agent described in step 3 is sodium hydroxide or citric acid, is also possible to potassium hydroxide, triethanolamine or benzene
The acidic or alkaline substances such as formic acid, ammonium acetate.
Compared with prior art, the present invention the beneficial effects are as follows:
Slow-release seed treatment dry powder doses provided by the present invention are free of organic solvent, and packaging stores, convenient transportation, at
This is low, has good slow release, the underground and aboveground disease pest for the crops such as rice, cotton that simultaneous can harness the river, the lasting period is long, significantly improves
Bioavailability gives full play to desinsection, the bactericidal effect of pesticide activity component, improves control efficiency.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, present invention following specific embodiments
It is illustrated, without constituting limiting the scope of the invention.Test method used in embodiment, if being without specified otherwise
Conventional method.Preparation method and applications range and the user of preparation are illustrated the present invention below by way of multiple embodiments
Formula.
The preparation of 1 30% Metalaxyl-M carbosulfan fludioxonil (1:4:1) seed treatment dry powder doses of embodiment
The mass percentage of 30% Metalaxyl-M carbosulfan fludioxonil (1:4:1) seed treatment dry powder doses:
Metalaxyl-M (97.6%) is 5.12%, carbosulfan (94.0%) 21.28%, fludioxonil (99.5%) 5.03%, urea
Formaldehyde resin 1.75%, styrene maleic anhydride copolymer 3.00%, sodium lignin sulfonate 19.88% guard against toner 1.50%,
Appropriate citric acid, Sodium hydroxide q.s., calcined kaolin supply 100%.
Preparation step is as follows:
The preparation of the microcapsules water slurry of 40% Metalaxyl-M carbosulfan (1:4) of step 1
81.9g Metalaxyl-M (97.6%) and 340.5g carbosulfan (94.0%) is uniformly mixed and is prepared into oil
Phase is added 20%SMA-520 (styrene maleic anhydride copolymer) aqueous solution 240.0g in 150.0g water and stirs evenly preparation
At water phase；The water phase and the oil are mutually mixed into shear treatment, form the O/W type cream that average grain diameter is 0.5 μm~3.0 μm
Liquid；25% urea-formaldehyde resin performed polymer aqueous solution 111.8g is added under stirring into the O/W type lotion, is slowly added dropwise appropriate
30% aqueous citric acid solution, adjusting pH value is 2.5~3.5, supplies 1000.0g with water.In 35 DEG C of ± 5 DEG C of insulation reaction 1h, rise
Temperature is to 75 DEG C of ± 5 DEG C of solidification 1h to get 40% Metalaxyl-M carbosulfan (1:4) microcapsules water slurry.Wherein contain admittedly
Amount about 50%.
The preparation of 3.8% fludioxonil water slurry of step 2
150.0g Borresperse NA (lignosulfonates) is dissolved in 450g water, 38.2g fludioxonil is added
(99.5%), 11.3g guards against toner, 319.3g calcined kaolin is dispersed with stirring uniformly, and water supplies 1000.0g, after mixing
It is sanded and is prepared into the 3.8% fludioxonil water slurry that average grain diameter is 0.5 μm~3.0 μm, solid content therein is 51.9%.
The preparation of step 3 30% Metalaxyl-M carbosulfan fludioxonil (1:4:1) seed treatment dry powder doses
By the microcapsules water slurry 125.0g of the resulting 40% Metalaxyl-M carbosulfan (1:4) of step 1 and step
Rapid 2 resulting 3.8% fludioxonil water slurry 265.0g is uniformly mixed, and 10% sodium hydrate aqueous solution is added and adjusts mixture pH
Value is 6~8, spray-dried to slough moisture, is filtered to remove greater than the particle of 200 mesh to get slow-release seed treatment of the present invention
Dry powder doses (30% Metalaxyl-M carbosulfan fludioxonil (1:4:1) seed treatment dry powder doses).
The preparation of 2 55% Metalaxyl-M carbosulfan hymexazol (3:7:1) seed treatment dry powder doses of embodiment
The mass percentage of 55% Metalaxyl-M carbosulfan hymexazol (3:7:1) seed treatment dry powder doses:
Metalaxyl-M (97.6%) is 15.37%, carbosulfan (94.0%) 37.24%, hymexazol (99.4%) 5.03%, urea
Formaldehyde resin 3.20%, styrene maleic anhydride copolymer 6.31%, sodium lignin sulfonate 9.00%, polycarboxylate 1.00%,
Warning toner 0.40%, appropriate citric acid, Sodium hydroxide q.s., calcined kaolin supply 100%.
Preparation step is as follows:
The preparation of the microcapsules water slurry of 40% Metalaxyl-M carbosulfan (3:7) of step 1
123.0g Metalaxyl-M (97.6%) is uniformly mixed with 297.9g carbosulfan (94.0%) and is prepared into
20%SMA-520 (styrene maleic anhydride copolymer) the aqueous solution 252.5g system of stirring evenly is added in oily phase in 150.0g water
Standby Cheng Shuixiang；The water phase and the oil are mutually mixed into shear treatment, form the O/W type that average grain diameter is 0.5 μm~3.0 μm
Lotion；25% urea-formaldehyde resin performed polymer aqueous solution 102.5g is added under stirring into the O/W type lotion, is slowly added dropwise suitable
30% aqueous citric acid solution is measured, adjusting pH value is 2.5~3.5, supplies 1000.0g with water.In 35 DEG C of ± 5 DEG C of insulation reaction 1h,
75 DEG C of ± 5 DEG C of solidification 1h are warming up to get 40% Metalaxyl-M carbosulfan (3:7) microcapsules water slurry.It is wherein solid
Content about 50%.
The preparation of 6.25% hymexazol water slurry of step 2
By 112.5g Borresperse NA (lignosulfonates) and 12.5g Tersperse 2700 (polycarboxylate)
It is dissolved in 450g water, 62.9g hymexazol (99.4%) is added, 5.0g guards against toner, 276.1g calcined kaolin is dispersed with stirring
Even, water supplies 1000.0g, and it is outstanding to be prepared into the 6.25% hymexazol water that average grain diameter is 0.5 μm~3.0 μm for sand milling after mixing
Supernatant liquid, solid content therein are 46.9%.
The preparation of step 3 55% Metalaxyl-M carbosulfan hymexazol (3:7:1) seed treatment dry powder doses
By the microcapsules water slurry 250.0g of the resulting 40% Metalaxyl-M carbosulfan (3:7) of step 1 and step
Rapid 2 resulting 6.25% hymexazol water slurry 160.0g is uniformly mixed, and 10% sodium hydrate aqueous solution is added and adjusts mixture
PH value is 6~8, spray-dried to slough moisture, is filtered to remove greater than the particle of 200 mesh to get slow-release seed of the present invention
It manages dry powder doses (55% Metalaxyl-M carbosulfan hymexazol (3:7:1) seed treatment dry powder doses).
The preparation of 3 35% Metalaxyl-M carbosulfan Tebuconazole (2:4:1) seed treatment dry powder doses of embodiment
The mass percentage of 35% Metalaxyl-M carbosulfan Tebuconazole (2:4:1) seed treatment dry powder doses:
Metalaxyl-M (97.6%) is 10.25%, carbosulfan (94.0%) 21.28%, Tebuconazole (98.3%) 5.09%, trimerization
Cyanamide formaldehyde resin 3.75%, styrene maleic anhydride copolymer 4.73%, sodium lignin sulfonate 25% guard against toner 1.0%,
Appropriate citric acid, Sodium hydroxide q.s., diatomite supply 100%.
Preparation step is as follows:
The preparation of the microcapsules water slurry of 40% Metalaxyl-M carbosulfan (1:2) of step 1
136.6g Metalaxyl-M (97.6%) is uniformly mixed with 283.7g carbosulfan (94.0%) and is prepared into
20%SMA-520 (styrene maleic anhydride copolymer) the aqueous solution 315.0g system of stirring evenly is added in oily phase in 150.0g water
Standby Cheng Shuixiang；The water phase and the oil are mutually mixed into shear treatment, form the O/W type that average grain diameter is 0.5 μm~3.0 μm
Lotion；25% melamine resin performed polymer aqueous solution 200.0g is added under stirring into the O/W type lotion, slowly drips
Add appropriate 30% aqueous citric acid solution, adjusting pH value is 4.5~5.5, supplies 1000.0g with water.In 35 DEG C of ± 5 DEG C of insulation reactions
1h is warming up to 75 DEG C of ± 5 DEG C of solidification 1h to get 40% Metalaxyl-M carbosulfan (1:2) microcapsules water slurry.Wherein
Solid content about 54%.
The preparation of 5% Tebuconazole water slurry of step 2
By 100.0g Ufoxane NA (lignosulfonates) and 150.0g Borresperse NA (lignin sulfonic acid
Salt) it is dissolved in 450g water, 50.8g Tebuconazole (98.3%) is added, 10.0g guards against toner, 284.1g diatomite is dispersed with stirring
Even, water supplies 1000.0g, is sanded is prepared into the 5% Tebuconazole aqueous suspension that average grain diameter is 0.5 μm~3.0 μm after mixing
Liquid, solid content therein are 59.5%.
The preparation of step 3 35% Metalaxyl-M carbosulfan Tebuconazole (2:4:1) seed treatment dry powder doses
By the microcapsules water slurry 150.0g of the resulting 40% Metalaxyl-M carbosulfan (1:2) of step 1 and step
Rapid 2 resulting 5% Tebuconazole water slurry 200.0g is uniformly mixed, and 10% sodium hydrate aqueous solution is added and adjusts mixture ph
It is 6~8, it is spray-dried to slough moisture, it is filtered to remove dry to get slow-release seed treatment of the present invention greater than the particle of 200 mesh
Pulvis (35% Metalaxyl-M carbosulfan Tebuconazole (2:4:1) seed treatment dry powder doses).
The preparation of 4 45% Metalaxyl-M carbosulfan hymexazol (1:5:3) seed treatment dry powder doses of embodiment
The mass percentage of 45% Metalaxyl-M carbosulfan hymexazol (1:5:3) seed treatment dry powder doses:
Metalaxyl-M (97.6%) is 5.12%, carbosulfan (94.0%) 26.6%, hymexazol (99.4%) 15.09%, trimerization
Cyanamide formaldehyde resin 1.97%, styrene maleic anhydride copolymer 3.75%, sodium lignin sulfonate 11.82%, polycarboxylate
7.09%, toner 0.89% is guarded against, appropriate citric acid, Sodium hydroxide q.s., diatomite supplies 100%.
Preparation step is as follows:
The preparation of the microcapsules water slurry of 40% Metalaxyl-M carbosulfan (1:5) of step 1
68.3g Metalaxyl-M (97.6%) and 354.6g carbosulfan (94.0%) is uniformly mixed and is prepared into oil
Phase is added 20%SMA-520 (styrene maleic anhydride copolymer) aqueous solution 250.0g in 150.0g water and stirs evenly preparation
At water phase；The water phase and the oil are mutually mixed into shear treatment, form the O/W type cream that average grain diameter is 0.5 μm~3.0 μm
Liquid；25% melamine resin performed polymer aqueous solution 105.0g is added under stirring into the O/W type lotion, is slowly added dropwise
Appropriate 30% aqueous citric acid solution, adjusting pH value is 4.5~5.5, supplies 1000.0g with water.In 35 DEG C of ± 5 DEG C of insulation reactions
1h is warming up to 75 DEG C of ± 5 DEG C of solidification 1h to get 40% Metalaxyl-M carbosulfan (1:5) microcapsules water slurry.Wherein
Solid content about 50%.
The preparation of 12.7% hymexazol water slurry of step 2
100.0g Reax 88B (lignosulfonates) and 60.0g Agrilan 700 (polycarboxylate) are dissolved in 450g
In water, addition 127.8g hymexazol (99.4%), 7.5g warning toner, 233.7g diatomite are dispersed with stirring uniformly, and water is supplied
1000.0g is sanded is prepared into the 12.7% hymexazol water slurry that average grain diameter is 0.5 μm~3.0 μm after mixing, wherein
Solid content be 52.9%.
The preparation of step 3 45% Metalaxyl-M carbosulfan hymexazol (1:5:3) seed treatment dry powder doses
By the microcapsules water slurry 150.0g of the resulting 40% Metalaxyl-M carbosulfan (1:5) of step 1 and step
Rapid 2 resulting 12.7% hymexazol water slurry 236.3g is uniformly mixed, and 10% sodium hydrate aqueous solution is added and adjusts mixture
PH value is 6~8, spray-dried to slough moisture, is filtered to remove greater than the particle of 200 mesh to get slow-release seed of the present invention
It manages dry powder doses (45% Metalaxyl-M carbosulfan hymexazol (1:5:3) seed treatment dry powder doses).
The preparation of 5 70% Metalaxyl-M carbosulfan fludioxonil (2:3:2) seed treatment dry powder doses of embodiment
The mass percentage of 70% Metalaxyl-M carbosulfan fludioxonil (2:3:2) seed treatment dry powder doses:
Metalaxyl-M (97.6%) is 20.49%, carbosulfan (94.0%) 30.92%, fludioxonil (99.5%) 20.1%, urea
Formaldehyde resin 4.69%, styrene maleic anhydride copolymer 7.75%, lignosulfonates 11.33% guard against toner 0.67%,
Appropriate citric acid, Sodium hydroxide q.s., diatomite supply 100%.
Preparation step is as follows:
The preparation of the microcapsules water slurry of 40% Metalaxyl-M carbosulfan (2:3) of step 1
163.9g Metalaxyl-M (97.6%) is uniformly mixed with 255.3g carbosulfan (94.0%) and is prepared into
20%SMA-520 (styrene maleic anhydride copolymer) the aqueous solution 310.0g system of stirring evenly is added in oily phase in 150.0g water
Standby Cheng Shuixiang；The water phase and the oil are mutually mixed into shear treatment, form the O/W type that average grain diameter is 0.5 μm~3.0 μm
Lotion；25% urea-formaldehyde resin performed polymer aqueous solution 150.0g is added under stirring into the O/W type lotion, is slowly added dropwise suitable
30% aqueous citric acid solution is measured, pH value 4.5~5.5 is adjusted, supplies 1000.0g with water.In 35 DEG C of ± 5 DEG C of insulation reaction 1h, rise
Temperature is to 75 DEG C of ± 5 DEG C of solidification 1h to get 40% Metalaxyl-M carbosulfan (2:3) microcapsules water slurry.Wherein contain admittedly
Amount about 52%.
The preparation of 30% fludioxonil water slurry of step 2
120.0g Ufoxane 3A (lignosulfonates) and 50.0g Reax 100M (lignosulfonates) are dissolved in
In 450g water, 301.5g fludioxonil (99.5%) is added, 10.0g guards against toner, 43.5g diatomite is dispersed with stirring uniformly, water benefit
Sufficient 1000.0g is sanded is prepared into the 30% fludioxonil water slurry that average grain diameter is 0.5 μm~3.0 μm after mixing, wherein
Solid content be 52.5%.
The preparation of step 3 55% Metalaxyl-M carbosulfan fludioxonil (2:3:2) seed treatment dry powder doses
By the microcapsules water slurry 250.0g of the resulting 40% Metalaxyl-M carbosulfan (2:3) of step 1 and step
Rapid 2 resulting 30% fludioxonil water slurry 133.3g is uniformly mixed, and 10% sodium hydrate aqueous solution is added and adjusts mixture pH
Value is 6~8, spray-dried to slough moisture, is filtered to remove greater than the particle of 200 mesh to get slow-release seed treatment of the present invention
Dry powder doses (70% Metalaxyl-M carbosulfan fludioxonil (2:3:2) seed treatment dry powder doses).
The preparation of 6 75% Metalaxyl-M carbosulfan Tebuconazole (4:7:4) seed treatment dry powder doses of embodiment
The mass percentage of 75% Metalaxyl-M carbosulfan Tebuconazole (4:7:4) seed treatment dry powder doses:
Metalaxyl-M (97.6%) is 20.49%, carbosulfan (94.0%) 37.23%, Tebuconazole (98.3%) 20.35%, three
Melamine-formaldehyde resin 1.86%, urea-formaldehyde resin 1.86%, styrene maleic anhydride copolymer 5.23%, lignin sulfonic acid
Sodium 12%, warning toner 0.4%, appropriate citric acid, Sodium hydroxide q.s., calcined kaolin supply 100%.
Preparation step is as follows:
The preparation of the microcapsules water slurry of 40% Metalaxyl-M carbosulfan (4:7) of step 1
149.0g Metalaxyl-M (97.6%) is uniformly mixed with 270.8g carbosulfan (94.0%) and is prepared into
20%SMA-520 (styrene maleic anhydride copolymer) the aqueous solution 190.0g system of stirring evenly is added in oily phase in 150.0g water
Standby Cheng Shuixiang；The water phase and the oil are mutually mixed into shear treatment, form the O/W type that average grain diameter is 0.5 μm~3.0 μm
Lotion；25% urea-formaldehyde resin performed polymer aqueous solution 54.0g and 25% melamine is added under stirring into the O/W type lotion
Appropriate 30% aqueous citric acid solution is slowly added dropwise in amine-formaldehyde resins performed polymer aqueous solution 54.0g, and adjusting pH value is 4.5~5.5,
1000.0g is supplied with water.In 35 DEG C of ± 5 DEG C of insulation reaction 1h, 75 DEG C of ± 5 DEG C of solidification 1h are warming up to get 40% smart first frost
Clever carbosulfan (1:2) microcapsules water slurry.Wherein solid content about 48%.
The preparation of 25% Tebuconazole water slurry of step 2
100.0g Ufoxane 3A (lignosulfonates) and 50.0g Ultrazine NA (lignosulfonates) is molten
In 450g water, addition 254.3g Tebuconazole (98.3%), 5.0g warning toner, 15.7g calcined kaolin are dispersed with stirring uniformly,
Water supplies 1000.0g, is sanded is prepared into the 5% Tebuconazole water slurry that average grain diameter is 0.5 μm~3.0 μm after mixing,
Solid content therein is 42.5%.
The preparation of step 3 75% Metalaxyl-M carbosulfan Tebuconazole (4:7:4) seed treatment dry powder doses
By the microcapsules water slurry 275.0g of the resulting 40% Metalaxyl-M carbosulfan (4:7) of step 1 and step
Rapid 2 resulting 25% Tebuconazole water slurry 160.0g is uniformly mixed, and 10% sodium hydrate aqueous solution is added and adjusts mixture pH
Value is 6~8, spray-dried to slough moisture, is filtered to remove greater than the particle of 200 mesh to get slow-release seed treatment of the present invention
Dry powder doses (75% Metalaxyl-M carbosulfan Tebuconazole (4:7:4) seed treatment dry powder doses).
The preparation of 7 60% Metalaxyl-M carbosulfan hymexazol (1:7:4) seed treatment dry powder doses of embodiment
The mass percentage of 60% Metalaxyl-M carbosulfan hymexazol (1:7:4) seed treatment dry powder doses:
Metalaxyl-M (97.6%) is 5.12%, carbosulfan (94.0%) 37.23%, hymexazol (99.4%) 20.12%, urea
Formaldehyde resin 1.5%, melamine resin 1.5%, styrene maleic anhydride copolymer 4.6%, sodium lignin sulfonate
15%, toner 0.75% is guarded against, appropriate citric acid, Sodium hydroxide q.s., diatomite supplies 100%.
Preparation step is as follows:
The preparation of the microcapsules water slurry of 40% Metalaxyl-M carbosulfan (1:7) of step 1
51.2g Metalaxyl-M (97.6%) and 372.3g carbosulfan (94.0%) is uniformly mixed and is prepared into oil
Phase is added 20%SMA-520 (styrene maleic anhydride copolymer) aqueous solution 230.0g in 150.0g water and stirs evenly preparation
At water phase；The water phase and the oil are mutually mixed into shear treatment, form the O/W type cream that average grain diameter is 0.5 μm~3.0 μm
Liquid；25% melamine resin performed polymer aqueous solution 60.0g and 25% urea is added under stirring into the O/W type lotion
Appropriate 30% aqueous citric acid solution is slowly added dropwise in formaldehyde resin performed polymer aqueous solution 60.0g, and adjusting pH value is 4.5~5.5, uses
Water supplies 1000.0g.In 35 DEG C of ± 5 DEG C of insulation reaction 1h, 75 DEG C of ± 5 DEG C of solidification 1h are warming up to get 40% Metalaxyl-M
Carbosulfan (1:7) microcapsules water slurry.Wherein solid content about 50%.
The preparation of 20% hymexazol water slurry of step 2
100.0g Ufoxane 3A (lignosulfonates) and 50.0g Ultrazine NA (lignosulfonates) is molten
In 450g water, 201.2g hymexazol (99.4%) is added, 7.5g guards against toner, 73.8g diatomite is dispersed with stirring uniformly, water benefit
Sufficient 1000.0g is sanded is prepared into the 20% hymexazol water slurry that average grain diameter is 0.5 μm~3.0 μm after mixing, wherein
Solid content be 50%.
The preparation of step 3 60% Metalaxyl-M carbosulfan hymexazol (1:7:4) seed treatment dry powder doses
By the microcapsules water slurry 200.0g of the resulting 40% Metalaxyl-M carbosulfan (1:7) of step 1 and step
Rapid 2 resulting 20% hymexazol water slurry 200.0g is uniformly mixed, and 10% sodium hydrate aqueous solution is added and adjusts mixture pH
Value is 6~8, spray-dried to slough moisture, is filtered to remove greater than the particle of 200 mesh to get slow-release seed treatment of the present invention
Dry powder doses (60% Metalaxyl-M carbosulfan hymexazol (1:7:4) seed treatment dry powder doses).
Correlated performance test
Illustrate at the slow-release seed of 1-7 of embodiment of the present invention offer below by seeds secure test and pharmacodynamic test
Reason dry powder doses are safe, controllable seedling stage or even entire growth period to rice, cotton, corn, the seed of potato or potato seed
The harm of disease pest.
1. seeds secure is tested
Implemented using the standard method used in seed industry, to the sustained release for having used 1-7 of the embodiment of the present invention to provide
The seed for the rice and cotton that type seed treatment dry powder doses are handled respectively carries out indoor pot experiment to verify preparation of the invention
It is safe to seed.6 months measurement germination percentages, test result are shown in Table 1 after treatment.
1 seeds secure test result of table
As shown in Table 1, the kind of the slow-release seed treatment dry powder doses processing provided using invention formulation embodiment 1 to 7
Son, germination percentage is suitable with untreated control, to for examination crop seed be safe.
2. field medicine effect test
Referring to the People's Republic of China (PRC) " pesticide field efficacy medicine test criterion " method, crop varieties phase is chosen respectively
Together, fertilizer and water management and underground disease pest a situation arises almost the same paddy field or cotton field, marks off different processing cells, every place
Reason is all provided with blank control.Testing comparison medicament used is the conventional seed treatment dry powder doses prepared using prior art method, is shown in Table
2。
2 field medicine effect test medicament list of table
(i) rice disease and pest prevents and treats field medicine effect test to pharmacodynamic test
The slow-release seed treatment dry powder doses and its control that embodiment 1, embodiment 2, embodiment 3 and embodiment 4 are provided
Medicament is after rice paddy seed seed soaking, and with 100ga.i./100kg seed Dressing, comparison medicament CK1, CK1, CK1 and CK4 are
The conventional seed treatment dry powder doses prepared using prior art method.It is No. 1 seed of semilate rice for studying object, is sowed immediately after seed dressing,
Each treatment region soil property and water, fertilizer management are consistent, respectively at rice seedling (after medicine 28 days) and tillering stage (after medicine 60 days)
Counting each treatment region pest and disease damage, a situation arises, and counts each treatment region yield in the rice harves phase.The master of experimental plot rice seedling
Wanting disease is damping-off and seedling rot, and primary pest is rice thrips and striped rice borer, and the Major Diseases of rice plant of tillering stage are bakanae disease
And rice blast, primary pest are rice thrips and pachydiplosis oryzae.Table 3 is the rice seedling and tillering stage prevention and control of plant diseases, pest control effect of each treatment region
Fruit and per mu yield.
3 rice disease and pest of table prevents and treats field medicine effect test result
From table 3 it can be seen that slow-release seed treatment dry powder doses provided by the present invention have good slow release and hold
(by taking embodiment 1 as an example, 28 days are respectively 92.1% and 94.5% (CK1 to the control efficiency of bakanae disease and pachydiplosis oryzae to effect property after medicine
Corresponding control efficiency is respectively 92.3% and 89.3%), is respectively to the control efficiency of bakanae disease and pachydiplosis oryzae within 60 days after medicine
85.6% and 71.7% (the corresponding control efficiency of CK1 is respectively 50.3% and 23.2%), the treatment region rice of 1 preparation of embodiment
Per mu yield is 805 kilograms (CK1 treatment region rice per mu yield is 735 kilograms), shows that having for preparation of the embodiment of the present invention is good
Lasting effect, 60 days control efficiency and per mu yield are significantly higher than identical active component after medicine and the conventional seed treatment of content is dry
The control efficiency and per mu yield of pulvis.
Pharmacodynamic test (ii) cotton insect pest preventing and controlling field medicine effect test
The slow-release seed treatment dry powder doses and its comparison medicament that embodiment 5, embodiment 6 and embodiment 7 are provided are in cotton
After flower seed is hoted water treatment of seeds, with 100g a.i./100kg seed Dressing, comparison medicament CK5, CK6 and CK7 are using existing
The conventional seed treatment dry powder doses of technology law preparation.It is No. 36 seeds of Lu Mianyan for studying object, seed dressing is sowed immediately, each treatment region
Soil property and water, fertilizer management are consistent, and count each treatment region disease in cotton in seedling stage (after medicine 28 days), bud stage (after medicine 60 days)
A situation arises for insect pest, and counts each treatment region seed cotton yield and lint yield in the cotton harvesting phase.The master of experimental plot cotton in seedling stage
Wanting disease is damping-off and samping off, and primary pest is cutworm and aphid；Experimental plot cotton bud stage Major Diseases are withered
Disease, primary pest are bollworm and cotton plant bug.Table 4 is the cotton in seedling stage and bud stage insect pest preventing and controlling effect and unginned cotton of each treatment region
Yield and lint yield.
4 cotton insect pest preventing and controlling field medicine effect test result of table
From table 4, it can be seen that slow-release seed treatment dry powder doses provided by the present invention have good slow release and hold
(by taking embodiment 6 as an example, 28 days are respectively 97.8% and 89.1% (CK6 to the control efficiency of damping-off and cutworm to effect property after medicine
Corresponding control efficiency is respectively 93.9% and 85.4%), is respectively to the control efficiency of wilt disease and cotton plant bug within 60 days after medicine
89.7% and 81.1% (the corresponding control efficiency of CK6 is respectively 37.5% and 22.3%), the treatment region cotton of 6 preparation of embodiment
Unginned cotton and the per mu yield of gined cotton be respectively 275.6 kilograms and 120.4 kilograms (unginned cotton of CK6 treatment region cotton and the mus of gined cotton
Yield is respectively 228.1 kilograms and 99.7 kilograms), show that preparation of the embodiment of the present invention has good lasting effect, 60 days after medicine
Control efficiency and per mu yield be significantly higher than identical active component and content conventional seed treatment dry powder doses control efficiency and
Per mu yield.
By above-mentioned table 1, table 3 and table 4 it is found that slow-release seed treatment dry powder doses of the embodiment of the present invention overcome the prior art
The pesticide activity component in preparation is easy the technological deficiency of degradation failure to middle routine seed dry powder inorganic agent after administration, extends
The lasting period of preparation, and then pesticide activity component bioavailability is improved, control efficiency is improved, crop is significantly improved
Yield.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (5)
1. a kind of slow-release seed treatment dry powder doses, which is characterized in that the composition of the slow-release seed treatment dry powder doses
And mass percent are as follows: Metalaxyl-M (folding hundred) 5%~20%, carbosulfan (folding hundred) 20%~35%, pesticide C (folding hundred)
5%~20%, amino resins 1.75%~4.69%, emulsifying dispersant 3%~7.75%, wetting dispersing agent 10%~25%,
Appropriate pH adjusting agent, appropriate defoaming agent guard against toner 0.4%~1.5%, and inert carrier supplies 100%.
2. slow-release seed treatment dry powder doses according to claim 1, which is characterized in that the pesticide C be fludioxonil,
One of Tebuconazole or hymexazol；
The amino resins is the mixture of one or both of urea-formaldehyde resin, melamine resin；
The emulsifying dispersant is styrene maleic anhydride copolymer；
The wetting dispersing agent is the mixture of one or both of lignosulfonates, polycarboxylate；
The pH adjusting agent is sodium hydroxide and citric acid；
The defoaming agent is organic silicon defoamer；
The warning toner is the ultra-micro powder of various colors used in general pesticide seed treatment；
The inert carrier is calcined kaolin or diatomite.
3. a kind of preparation method of slow-release seed treatment dry powder doses, which is characterized in that the preparation of the slow-release seed treatment
Method the following steps are included:
The preparation of the microcapsules water slurry of step 1 Metalaxyl-M and carbosulfan mixture:
Metalaxyl-M pesticide is uniformly mixed with carbosulfan and is prepared into oily phase, by the emulsifying dispersant system of being dissolved in the water
Standby Cheng Shuixiang；The water phase and the oil are mutually mixed into shear treatment, form the O/W type that average grain diameter is 0.5 μm~3.0 μm
Lotion；The amino resins performed polymer into the O/W type lotion is added with stirring acidic ph modifier and home position polymerization reaction life occurs
At amino resins (i.e. the cyst wall substances of microcapsules), it is deposited on the table for the core material being made of Metalaxyl-M and carbosulfan
Face, elevated cure up to Metalaxyl-M and carbosulfan mixture microcapsules water slurry.
The preparation of step 2 pesticide C water slurry:
Pesticide C, wetting and dispersing auxiliary agent, defoaming agent, warning toner, inert carrier and water are uniformly mixed, are sanded into solid matter
Average grain diameter be 0.5 μm~3.0 μm of pesticide C water slurry.
The preparation of step 3 slow-release seed treatment dry powder doses
By the microcapsules water slurry and the resulting pesticide C water of step 2 of step 1 gained Metalaxyl-M and carbosulfan mixture
Suspension is uniformly mixed, and pH adjusting agent is added and adjusts mixture ph to 6~8, spray-dried moisture of sloughing is up to the present invention
Slow-release seed treatment dry powder doses.
4. the preparation method of slow-release seed treatment dry powder doses according to claim 3, which is characterized in that institute in step 1
The emulsifying dispersant stated is styrene maleic anhydride copolymer, and the amino resins performed polymer is urea-formaldehyde resin pre-polymerization
The mixture of one or both of body, melamine resin performed polymer, the acidic ph modifier are citric acid.
5. the preparation method of slow-release seed treatment dry powder doses according to claim 3, which is characterized in that institute in step 2
The pesticide C stated is one of fludioxonil, Tebuconazole or hymexazol, and the wetting and dispersing auxiliary agent is sodium lignin sulfonate, gathers
The mixture of one or both of carboxylate, the defoaming agent are organic silicon defoamer, and the warning toner is general
The ultra-micro powder of various colors used in pesticide seed treatment, the inert carrier are calcined kaolin or diatomite；Step 3
Described in pH adjusting agent be sodium hydroxide.
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