CN107517960A - A kind of microballoon suspension seed-coating agent and preparation method thereof - Google Patents
A kind of microballoon suspension seed-coating agent and preparation method thereof Download PDFInfo
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- CN107517960A CN107517960A CN201710769139.6A CN201710769139A CN107517960A CN 107517960 A CN107517960 A CN 107517960A CN 201710769139 A CN201710769139 A CN 201710769139A CN 107517960 A CN107517960 A CN 107517960A
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- microballoon
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- coating agent
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
-
- 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
-
- 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
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
-
- 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
- A01N51/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds having the sequences of atoms O—N—S, X—O—S, N—N—S, O—N—N or O-halogen, regardless of the number of bonds each atom has and with no atom of these sequences forming part of a heterocyclic ring
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Agronomy & Crop Science (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention relates to a kind of microballoon suspension seed-coating agent and preparation method thereof, belong to pesticide production technology field.Using bactericide and insecticide as core, using Biodegradable material to be overmolding to ball material；It is dissolved in by active ingredient and into ball material in recyclable volatile organic solvent, fluorine azoles ring bacterium amine clothianidin microballoon is prepared using emulsion-solvent evaporation method, then through filtering extraction.The microballoon suspension seed-coating agent that agricultural chemicals microballoon, dispersion moisture agent, thickener, antifreezing agent, defoamer, preservative, film forming agent, colouring agent, water prepares stable performance is weighed by raw material proportioning.The compounding microballoon suspension seed-coating agent of the present invention has good preventive and therapeutic action to soil-borne disease, subterranean pest-insect, it can control simultaneously and extend release time of two kinds of active ingredients in soil, and have the characteristics that drug effect is high, environmental pollution is small, the lasting period is long, cost accounting is low, there is significant economic and social benefit.
Description
Technical field
The invention belongs to pesticide field, and in particular to a kind of microballoon suspension seed-coating agent containing bactericide and pesticide compositional and
Its preparation method.
Background technology
Agricultural chemicals is important capital goods in the agricultural sector, is widely used in the overall process of agricultural production, but in the long-term of agricultural chemicals
During use, some agricultural chemicals due in the environment largely use but utilization rate it is extremely low or lack science preparation technique to environment
Pollute.Because the novel pesticide construction cycle is grown, workload is big, and occupancy resource is big, therefore the research for the formulations of pesticide is more next
More paid attention to by vast New pesticides discovery worker, various types of seed coat agent formulation research and development are arisen at the historic moment.
In modern agricultural production, it is preventing and treating subterranean pest-insect and crops soil to carry out chemicals treatment to seed using seed coat agent
One of biography, method of economical and convenient of seed-borne disease.Seed coat agent be it is a kind of be used for crop or other plant seed treatment, have
The pesticidal preparations of film forming characteristics, it can be formed by curing the film of referred to as kind clothing in the surface of the seed.Seed coat agent absorbs water swollen in soil
It is swollen and be not dissolved, it is allowed to seed normally the moisture needed for germination and air by the way that the material such as contained agricultural chemicals and seed manure is slow
Release, can kill subterranean pest-insect, seedling stage insect, have preventing and treating sprout term disease and systemic disease, improve percentage of seedgermination, promote
Enter seedling healthy growth and other effects.
Microballoon (microspheres) refers to that medicine is dissolved or dispersed in high polymer material, and it is real to form the miniature bead of skeleton
Body, particle size range are essentially 1~250 μm, are mainly used in field of medicaments at present, are widely used in the preparation of targeting preparation, are made
Slow, control-release microsphere preparation etc..By agricultural chemicals packing into microballoon formed microscopic, spherical entity can improve agricultural chemicals utilization ratio and can
To reduce pesticide dosage；The bad smell that agricultural chemicals is sent in itself can be covered, suppresses the volatilization of agricultural chemicals, reduces or cover the easy of agricultural chemicals
Combustion property, reduce the contact toxicity, toxicity on inhalation and the poisoning to crops of agricultural chemicals, efficacy stability is persistently discharged, to people, animal,
Fish and other animal safeties.
Agricultural chemicals microballoon belongs to pesticide slow-releasing agent with micro-capsule, all has slow release, sustained release, the spy of time controlled released
Sign, but microballoon has the advantages that than micro-capsule reaction milder, capsule material is more environmentally friendly, release is more thorough, the two is had any different such as following table：
It is used be overmolding to ball material from polyesters (polylactic acid PLA, makrolon), polysaccharide (chitosan, starch,
Cellulose), protein-based (gelatin), polyhydroxyalkanoate class (PHA) Polymer material, these materials are widely used at present
It is also expanded to be used for agricultural chemicals microballoon in biological medicine, there is nontoxic, bio-compatible and degradable in vivo,
Ultimately become some nontoxic materials such as carbon dioxide, water.
The content of the invention
It is an object of the invention to for single pesticide original medicine to subterranean pest-insect or the single preventive and therapeutic effect of disease, it is and conventional
The deficiencies of suspension seed-coating agent lasting period is short, utilization rate of active components is low, big for environment pollution, cost accounting is higher, there is provided a kind of
Microballoon suspension seed-coating agent preparation method containing bactericide and pesticide compositional, it is long, right that it prevents and treats spectrum wide, efficacy stability, lasting period
Environmental pollution is small, cost accounting is relatively low, meets the national policy that pesticide reduction uses.
The present invention relates to a kind of microballoon suspension seed-coating agent, auxiliary necessary to as agricultural chemicals microballoon and being processed into suspension seed-coating agent
Composition forms, and the core of described agricultural chemicals microballoon is bactericide and insecticide, and it is Biodegradable material to be overmolding to ball material, institute
The auxiliary element stated includes film forming agent, wetting agent, dispersant, thickener, colouring agent, antifreezing agent and water etc., and it is formed with weight
Percentages are：20~800g/L of agricultural chemicals microballoon, 5~50g/L of dispersion moisture agent, 0.1~20g/L of thickener, antifreezing agent 5~
50g/L, 0.1~2g/L of defoamer, 0.1~2g/L of preservative, 10~50g/L of film forming agent, 10~80g/L of colouring agent, surplus are
Water, these agitated are uniformly dispersed of component and a kind of manufactured flowable, stable homogeneous suspension liquid.
Present invention also offers a kind of preparation method of microballoon suspension seed-coating agent, with pesticidal active substance bactericide and desinsection
Agent is core, and Biodegradable material is to be overmolding to ball material；By pesticidal active substance and it is overmolding to ball material and is dissolved in and can return
In the volatile organic solvent of receipts, agricultural chemicals microballoon is prepared using emulsification-evaporation method, then through filtering extraction；Claim by raw material proportioning
Agricultural chemicals microballoon, dispersion moisture agent, thickener, antifreezing agent, defoamer, preservative, film forming agent, colouring agent, water are taken, is dispersed through equipment
Stirring concussion, it is well mixed to obtain microballoon suspension seed-coating agent.
Wherein, the mass ratio of bactericide and insecticide is 1~75 ︰ 75~1 in described core, and bactericide and insecticide exist
Mass percent in agricultural chemicals microballoon is 1~30%.
Wherein, the described biodegradable ball material that is overmolding to is selected from polyesters (polylactic acid PLA, makrolon), polysaccharide
One or both of class (chitosan, starch, cellulose), protein-based (gelatin), polyhydroxyalkanoate class (PHA) are any
The mixture of ratio.
Wherein, described organic solvent is selected from any ratio of one or both of dichloromethane, chloroform, ethyl acetate
The mixture of example.
Wherein, described dispersion moisture agent is selected from naphthalenesulfonic acid-formaldehyde condensate, AEO, polycarboxylate
And its derivative, styrylphenol polyoxyethylene ether, lignosulfonates, polyoxyethylene polyoxypropylene block copolymer
The mixture of two or three of arbitrary proportion in Atlox 4913, sodium tripolyphosphate.
Wherein, it is any to be selected from one or both of Kathon CG, sodium benzoate, sorbic acid, sodium salicylate for described preservative
The mixture of ratio.
Wherein, described defoamer is selected from silicone organic silicon defoamer, aliphatic alcohols compound isooctanol, chloro- 2 first of 5-
The mixing of one or both of the ketone of the isothiazoline of base-4-3 and MIT (Kathon CG) arbitrary proportion
Thing.
Wherein, described film forming agent is selected from styrene-acrylic emulsion, pure-acrylic emulsion, the methylcellulose of carboxylic third, polyvinyl alcohol, polyethylene pyrrole
The mixture of one or both of pyrrolidone, polyacrylamide arbitrary proportion.
Wherein, described colouring agent be selected from acid scarlet, basic rhodamine, alkaline rhodo, Red-8110, Red-131,
The mixture of one or both of FGR-131, permanent bordeaux F4R arbitrary proportion.
Wherein, described antifreezing agent is selected from the mixture of one or both of ethylene glycol, glycerine, propane diols, urea.
Wherein, described thickener is in sodium carboxymethylcellulose, aluminium-magnesium silicate, xanthans XG, polyvinyl alcohol, pectin
One or two kinds of mixtures.
A kind of specific method for preparing microballoon suspension seed-coating agent described above comprises the following steps：
(1) bactericide and insecticide assemble：According to the activity of the bactericide of selection and insecticide, bactericide and insecticide
1~75 ︰ 75~1 in mass ratio is compounded, and is weighed and well mixed rear standby；
(2) preparation of drug containing oil phase suspension：The compounding mixture of step (1) and macromolecule are pressed into quality into ball material
Than for 1:1~4 mixing, add to dissolve in ice-water bath with the recyclable organic solvent of volatility (needs to supervise in course of dissolution
The weight of control system, weight need to supply organic solvent when reducing), finally it is made into 1.0~2.0g/L drug containing oleagenous suspension；
(3) preparation of colostric fluid：Under high-speed stirred, it is by the drug containing oleagenous suspension O/W phase volume ratios in step (2)
In 1 ︰ 10~20 aqueous gelatin solution, O/W colostric fluids are prepared；Emulsification condition is：20~35 DEG C, speed is dispersed with stirring as 3000
~4800rpm, 30~50S of emulsification times；
(4) preparation of agricultural chemicals microballoon：Under scattered stirring condition, the colostric fluid obtained by step (3) is placed in the water containing 1L
In container, 30~35 DEG C of reaction temperature is kept, is stirred to organic solvent-free and volatilized with 500rpm under the conditions of lucifuge, collected by suction
Solid content is simultaneously dried at a temperature of 30~50 DEG C, that is, obtains agricultural chemicals microballoon；
(5) preparation of microballoon suspension seed-coating agent：Weigh in proportion agricultural chemicals microballoon, dispersion moisture agent, thickener, antifreezing agent,
Defoamer, preservative, film forming agent, colouring agent and water, the scattered microballoon suspension for preparing that mass-dispersion is 2.5~20% that stirs
Seed coat agent.
Compared with prior art, the beneficial effects of the invention are as follows：
Suspension seed-coating agent is made in agricultural chemicals microballoonization by the present invention again, is advantageous to preserve the ecological environment；Can also be to some easy
Hydrolysis and the difficult pesticide processing for being processed into the waterborne preparations such as water and milk, micro emulsion expand its use range into microballoon, and realize its with
Other agricultural chemicals or auxiliary agent mixing are advantageous to pesticide processing use without chemically reacting.And by bactericide and pesticide compositional
Use, wide, efficacy stability is composed in preventing and treating, the lasting period is long, environmental pollution is small, cost accounting is relatively low, meets what pesticide reduction used
National policy.
Brief description of the drawings
Fig. 1 is 500 times and 8000 times of scanning figures of fluorine azoles ring bacterium amine-clothianidin microballoon of the present invention；
Fig. 2 is fluorine azoles ring bacterium amine-clothianidin microballoon and its microballoon suspension seed-coating agent outward appearance photo of the present invention；
Fig. 3 is fluorine azoles ring bacterium amine-clothianidin microballoon suspension seed-coating agent of the present invention and fluorine azoles ring bacterium amine-clothianidin suspended seed coating
Release rate profile of the clothianidin in soil in agent；
Fig. 4 is fluorine azoles ring bacterium amine-clothianidin of the present invention, microballoon suspension seed-coating agent and fluorine azoles ring bacterium amine-clothianidin suspension kind
Release rate profile of the fluorine azoles ring bacterium amine in soil in clothing agent.
Embodiment
The present invention is insecticide using fluorine azoles ring bacterium amine as bactericide, clothianidin, prepares fluorine azoles ring bacterium amine-clothianidin microballoon and hangs
Floating seed coat agent, illustrate the formula and preparation method of the present invention.
Fluorine azoles ring bacterium amine-raw material components of clothianidin microballoon suspension seed-coating agent and the concentration of each component in the present invention are：
Fluorine azoles ring bacterium amine-clothianidin 20~800g/L of microballoon, 5~50g/L of dispersion moisture agent, 0.1~20g/L of thickener, antifreezing agent 5~
50g/L, 0.1~2g/L of defoamer, 0.1~2g/L of preservative, 10~50g/L of film forming agent, 10~80g/L of colouring agent, surplus are
Water.
Fluorine azoles ring bacterium amine-clothianidin microballoon suspension seed-coating agent preparation method comprises the following steps that：
(1) preparation method of fluorine azoles ring bacterium amine-clothianidin microballoon：Weighed respectively by raw material proportioning certain mass than fluorine azoles
Ring bacterium amine active compound, clothianidin active compound and PLA, dissolved completely with dichloromethane, closed container is placed in ice-water bath (dissolving
During to weigh, in time add dichloromethane supplement loss weight), decoction is injected into a certain amount of volume containing emulsifying agent
Percentage is in the 0.05% Tween-80 aqueous solution, emulsifies 30~40S with 3000~4500rpm with high speed agitator, is made just
How much emulsion (adds 0.1~0.3ml organic silicon defoamers) depending on colostric fluid foam volume, and resulting solution is poured into rapidly to band and disperses to stir
In the beaker for mixing device, 30~35 DEG C of reaction temperature is kept, is stirred under the conditions of lucifuge with 500~800rpm, until dichloromethane
Untill alkane volatilization is clean, centrifuges and filter to obtain solid content, solid content is placed on 40 DEG C of drying in thermostatic drying chamber, you can
To fluorine azoles ring bacterium amine-clothianidin microballoon, the total mass fraction of fluorine azoles ring bacterium amine-clothianidin is for 1~35% (in example in microballoon
The PLA of use can utilize makrolon, chitosan, starch, cellulose, gelatin, PHA replacements).
(2) above-mentioned emulsifying agent is 10~20mg/ml aqueous gelatin solution.
(3) preparation method of microballoon suspension seed-coating agent：Fluorine azoles ring bacterium is weighed by the active ingredient mass fraction of required preparation
Amine-clothianidin microballoon, dispersion moisture agent, thickener, antifreezing agent, defoamer, preservative, film forming agent, colouring agent, water, using stirring
Mix dispersal device and 15~30min is allocated with 1500~2000rpm, it is 2~20% fluorine azoles ring bacterium amine-thiophene worm to produce mass fraction
Amine microballoon suspension seed-coating agent.
Embodiment one (sample 1)：2.5% fluorine azoles ring bacterium amine-clothianidin microballoon suspension seed-coating agent (fluorine：Thiophene=1:6)
Composition of raw materials：18.22% fluorine azoles ring bacterium amine-clothianidin microballoon (Fu ︰ thiophene=1:6) 13.75 grams, dispersant SP-
28361.24 grams, it is 0.88 gram of lauryl sodium sulfate, 0.81 gram of aluminium-magnesium silicate, 0.11 gram of xanthans, 3.11 grams of urea, organic
0.22 gram of silicon defoaming agent, S-300.18 grams of preservative, Km-M011.85 grams of film forming agent, Red-81103.12 grams of colouring agent, water are mended
Foot is to 100 grams.
Embodiment two (sample 2)：10% fluorine azoles ring bacterium amine-clothianidin microballoon suspension seed-coating agent (Fu ︰ thiophene=1:6)
Composition of raw materials：18.22% fluorine azoles ring bacterium amine-clothianidin microballoon (Fu ︰ thiophene=1:6) 54.77 grams, polyoxyethylene polyoxy
49131.54 grams of propylene-based block copolymer Atlox, NN-89060.61 grams, 0.06 gram of xanthans, 3.02 grams of ethylene glycol, organosilicon
0.22 gram of defoamer, S-300.22 grams of preservative, Km-M013.02 grams of film forming agent, Red-81106.04 grams of colouring agent, water are supplied
To 100 grams.
Embodiment three (sample 3)：15% fluorine azoles ring bacterium amine-clothianidin microballoon suspension seed-coating agent (Fu ︰ thiophene=1:2)
Composition of raw materials：26.68% fluorine azoles ring bacterium amine-clothianidin microballoon (Fu ︰ thiophene=1:2) 56.04 grams, YUS-
FS30002.16 grams, it is 0.52 gram of YUS-TXC, 0.08 gram of xanthans, 3.11 grams of ethylene glycol, 0.22 gram of organic silicon defoamer, anti-
Rotten 0.22 gram of agent sodium benzoate, 3.05 grams of styrene-acrylic emulsion, Red-1316.07 grams of colouring agent, water complement to 100 grams.
Example IV (sample 4)：6% fluorine azoles ring bacterium amine-clothianidin microballoon suspension seed-coating agent (Fu ︰ thiophene=3:1)
Composition of raw materials：20.64% fluorine azoles ring bacterium amine-clothianidin microballoon (Fu ︰ thiophene=3:1) 29.40 grams, DA-6751.83
Gram, Atlas-G50000.75 grams, CMC0.32 grams, 3.07 grams of propane diols, 0.16 gram of organic silicon defoamer, preservative sodium benzoate
0.24 gram, 2.21 grams of film forming agent E-135 (standing grain is big), FGR-1314.13 grams of colouring agent, water complement to 100 grams.
Embodiment five (sample 5)：12% fluorine azoles ring bacterium amine-clothianidin microballoon suspension seed-coating agent (Fu ︰ thiophene=7:1)
Composition of raw materials：24.51% fluorine azoles ring bacterium amine-clothianidin microballoon (Fu ︰ thiophene=7:1) 48.92 grams, GY-12871.67
Gram, 0.86 gram of YUS-LXC, 0.12 gram of xanthans, 3.23 grams of ethylene glycol, 0.14 gram of organic silicon defoamer, Preservative Kathon CG(Methylchloroisothiazolinone/Methylisothiazolinone combination)
0.20 gram, 5.05 grams of polyvinyl alcohol, 5.16 grams of colouring agent permanent bordeaux F4R, water complement to 100 grams.
Control sample embodiment one (control 1)：2.5% fluorine azoles ring bacterium amine clothianidin suspension seed-coating agent (Fu ︰ thiophene=1:6)
Control sample composition of raw materials：0.38 gram of fluorine azoles ring bacterium amine active compound, 2.39 grams of clothianidin active compound, dispersant SP-
28361.20 grams, it is 0.86 gram of lauryl sodium sulfate, 0.84 gram of aluminium-magnesium silicate, 0.11 gram of xanthans, 3.08 grams of urea, organic
0.22 gram of silicon defoaming agent, S-300.18 grams of preservative, Km-M011.80 grams of film forming agent, Red-81103.08 grams of colouring agent, water are mended
Foot is to 100 grams.
Control sample raw material process：By water, fluorine azoles ring bacterium amine active compound, clothianidin active compound, dispersant SP-2836, dodecane
The number of weighing, shearing are uniformly sanded to body using sand mill afterwards in proportion for base sodium sulphate, aluminium-magnesium silicate, urea, organic silicon defoamer
It is particle diameter D90≤5.0 μm, film forming agent Km-M01, colouring agent Red-8110, xanthans, excess water is added after discharging and is stirred
Produce conventional 2.5% fluorine azoles ring bacterium amine clothianidin suspension seed-coating agent (Fu ︰ thiophene=1:6).
By above-mentioned each three parts of six samples, be respectively used to cold storage, heat storage, normal temperature observation, determine its cold storage stability and
The indexs such as heat storage stability, the results are shown in Table 1.
The microballoon suspension seed-coating agent storage-stable of table 1
Cold storage and the result surface of heat storage, preparation stability closes after both active materials are prepared into microballoon suspension seed-coating agent
Lattice, on wheat, rice germination percentage without influence, while contrast basically identical in conventional suspension seed-coating agent performance indications, meet
National standard.
Embodiment seven (prevention effect)
Field experiment is in 2016 in the peasant household's rice direct seeding field of Nanchang County Tang Nan Zhen Huang mountain villages one, reagent agent A：10% fluorine
Azoles ring bacterium amine-clothianidin microballoon suspension seed-coating agent (Fu ︰ thiophene=1:And reagent agent B 6)：10% fluorine azoles ring bacterium amine-clothianidin hangs
Floating seed coat agent (Fu ︰ thiophene=1:6), main detection is shown in Table to bakanae disease of rice, the preventive effect of rice thrips, test process and usage amount
2
The microballoon suspension seed-coating agent rice of table 2 seed dressing result of the test
As shown in Table 2, microballoon suspension seed-coating agent of the present invention and the contrast of the conventional suspension seed coat agent of same amount are normal
It is just suitable to the preventive effect of bakanae disease of rice when rule suspension seed-coating agent dosage is twice of microballoon suspension seed-coating agent；In preventing and treating rice
In terms of thrips, effect is not so good as micro emulsion suspension seed-coating agent to conventional suspension seed coat agent from beginning to end, illustrates fluorine azoles ring bacterium amine and clothianidin
The lasting period of extension active ingredient after microballoon suspension seed-coating agent is made in compounding, can reduce the dosage and times for spraying of agricultural chemicals.
Microballoon suspension seed-coating agent and conventional suspension seed coat agent Release Performance contrast test
Seed is loaded into mesh bag after microballoon suspension seed-coating agent, conventional suspension seed coat agent are dressed seed according to identical pesticide-seeds ratio
In, then it is embedded under suitable soil, mesh bag is taken out in timing, determines its drugloading rate, is calculated according to the reduction of drugloading rate different
The rate of release of time active ingredient, experimental result are shown in accompanying drawing 3, Fig. 4.
Test result indicates that：Fluorine azoles ring bacterium amine and clothianidin in microballoon suspension seed-coating agent discharge than conventional suspension seed coat agent
Speed more relaxes, is more longlasting, more thoroughly.Conventional suspension seed coat agent discharged substantially at 25~30 days just to be stopped, and release rate reaches
75% or so, and microballoon suspension seed-coating agent was also discharging when 60 days, release rate reaches more than 90%, realizes that zero is residual substantially
Stay, improve pesticide active ingredient utilization rate more than 20%.
This fluorine azoles ring bacterium amine-clothianidin microballoon suspension seed-coating agent is applied to the seed dressing of the crops such as corn, wheat, rice, fluorine azoles
Ring bacterium amine can prevent and treat loose smut of wheat, maize head smut, bakanae disease of rice, Achlya spp disease etc., and clothianidin can be prevented harnessing the river
Rice rice thripses, corn small brown rice planthopper, wheat aphid etc., the two compounding have very to the pest and disease damage on the crops such as corn, wheat, rice
Good common anti-effect.
The fluorine azoles ring bacterium amine-clothianidin microballoon suspension seed-coating agent simple production process of the present embodiment, cost is relatively low, raw material
It is easy to get, balling-up material environment friendly is degradable, and capsuled seed can safe storage 12 months.Percentage of seedgermination, expulsion rate are qualified, seedling
Robust growth, well developed root system, diseases prevention insect prevention, increase yield etc..
In view of this, the present invention provides a kind of microballoon suspension kind used available for wheat, rice, seeding corn and other crops seed dressing
Clothing agent, the composition refer to the method prompting that this patent is studied in this area or those skilled in the relevant art and developed
Into the microspheres product applied to practical commercial purposes, i.e., it is applicable to including microballoon, microballoon suspending agent, microballoon suspension seed-coating agent etc.
The product of business application；Microballoon, the microballoon available for commercial use that such as polysaccharide, protein-based material can be used to make hang
All dosage forms easy to use such as floating agent, microballoon seed coat agent；It is numerous to list herein due to various, because this patent is ground
A kind of microballoon suspension seed-coating agent studied carefully is from the hierarchy of skill field difference such as included microballoon, microballoon suspending agent, microballoon seed coat agent
The commercially viable product of form, but as long as being accordingly to be regarded as encroaching right in the range of the microsphere composition described in this patent assembles；Also can join
The microsphere composition prompting that this patent is studied is examined, the product for carrying out the application of the 3rd component is accordingly to be regarded as encroaching right.
Claims (8)
1. a kind of microballoon suspension seed-coating agent, it is characterised in that the seed coat agent includes agricultural chemicals microballoon, and is processed into suspension seed-coating agent
Necessary auxiliary element, the core of described agricultural chemicals microballoon is bactericide and insecticide, and it is biological to drop to be overmolding to ball material
Solve material.
A kind of 2. microballoon suspension seed-coating agent according to claim 1, it is characterised in that by weight percentage, component bag
Include 20~800g/L of agricultural chemicals microballoon, 5~50g/L of dispersion moisture agent, 0.1~20g/L of thickener, 5~50g/L of antifreezing agent, defoaming
0.1~2g/L of agent, 0.1~2g/L of preservative, 10~50g/L of film forming agent, 10~80g/L of colouring agent, surplus are water.
3. a kind of microballoon suspension seed-coating agent according to claim 1 or 2, it is characterised in that the bactericide and insecticide
Mass ratio be 1~75 ︰ 75~1, the mass percent of bactericide and insecticide in agricultural chemicals microballoon is 1~30%.
4. a kind of microballoon suspension seed-coating agent according to claim 1, it is characterised in that the bactericide is fluorine azoles ring bacterium
Amine, Silthiopham, thifluzamide, pyraclostrobin, triazolone, Metalaxyl-M, Difenoconazole, fludioxonil, Tebuconazole, phonetic bacterium
One kind in ester, thiram, Prochloraz, the insecticide are clothianidin, bromine cyanogen insect amide, Rynaxypyr, imidacloprid, thiophene
One kind in worm piperazine, ethiprole, MTI-446, phoxim, chlopyrifos, chlorine cyanogen worm ester, gamma cyhalothrin.
A kind of 5. microballoon suspension seed-coating agent according to claim 1, it is characterised in that：
It is described it is biodegradable be overmolding to ball material be selected from PLA, makrolon, chitosan, starch, cellulose, gelatin,
The mixture of one or both of polyhydroxyalkanoate arbitrary proportion；
Described dispersion moisture agent is selected from naphthalenesulfonic acid-formaldehyde condensate, AEO, polycarboxylate and its derivative
Thing, styrylphenol polyoxyethylene ether, lignosulfonates, polyoxyethylene polyoxypropylene block copolymer Atlox4913, three
The mixture of two or more arbitrary proportions in polyphosphate sodium；
Described preservative is selected from the mixing of one or both of Kathon CG, sodium benzoate, sorbic acid, sodium salicylate arbitrary proportion
Thing；
Described defoamer is selected from silicone organic silicon defoamer, aliphatic alcohols compound isooctanol, chloro- -4 different thiophenes of 2 methyl of 5-
The mixture of one or both of the ketone of oxazoline -3 and MIT arbitrary proportion；
Described film forming agent is selected from styrene-acrylic emulsion, pure-acrylic emulsion, the methylcellulose of carboxylic third, polyvinyl alcohol, polyvinylpyrrolidone, poly-
The mixture of one or both of acrylamide arbitrary proportion；
Described colouring agent is selected from acid scarlet, basic rhodamine, water-based rhodo, Red-8110, Red-131, FGR-131, forever
The mixture of one or both of fast red F4R arbitrary proportion；
Described antifreezing agent is selected from the mixture of one or both of ethylene glycol, glycerine, propane diols, urea；
One kind in sodium carboxymethylcellulose, aluminium-magnesium silicate, xanthans XG, polyvinyl alcohol, pectin of described thickener or
Two kinds of mixture.
6. the preparation method of a kind of microballoon suspension seed-coating agent according to claim 1, it is characterised in that by bactericide and kill
Worm agent core, the ball material that is overmolding to of Biodegradable material are dissolved in recyclable volatile organic solvent, using emulsification-it is molten
Agent volatility process, then prepare agricultural chemicals microballoon through filtering extraction；Agricultural chemicals microballoon, dispersion moisture agent, thickener, antifreeze is weighed in proportion
Agent, defoamer, preservative, colouring agent, film forming agent, water are dispersed through equipment stirring concussion, well mixed to obtain microballoon suspension kind
Clothing agent.
7. the preparation method of a kind of microballoon suspension seed-coating agent according to claim 6, it is characterised in that described is organic molten
Agent is selected from the mixture of one or both of dichloromethane, chloroform, ethyl acetate arbitrary proportion.
8. a kind of microballoon is in the application of suspension seed-coating agent, it is characterised in that pesticide activity component is made into microballoon and is applied to suspend
In seed coat agent.
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| CN109792986A (en) * | 2018-06-27 | 2019-05-24 | 贵州大学 | A kind of short-chain amylose nano pesticide and preparation method thereof |
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