CN102823619A - Imidacloprid sustained-release granules and preparation and application thereof - Google Patents
Imidacloprid sustained-release granules and preparation and application thereof Download PDFInfo
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Abstract
The invention discloses an imidacloprid sustained-release granular insecticide and preparation and application thereof. The components of the imidacloprid sustained-release insecticide include imidacloprid, auxiliaries, coating agent and filler. The invention discloses a preparation method and application of the imidacloprid sustained-release insecticide. The imidacloprid sustained-release insecticide slowly releases the beneficial components so as to achieve the aim of reducing insecticide applying times.
Description
Technical field
The present invention relates to pesticide technology and plant protection field, specifically refer to the preparation and the application thereof of Imidacloprid sustained-release granular formulation.
Background technology
Imidacloprid is a nicotinoids super-high-efficient insecticide, has wide spectrum, efficient, low toxicity, low-residual, and insect is difficult for producing resistance, to characteristics such as people, animal, plant and natural enemies securities, and have tag, multiple actions such as stomach toxicity and interior suction.Behind the insect contact medicament, the nervous centralis normal conduction is obstructed, and makes its paralysis dead.
The English general imidacloprid by name of Imidacloprid, chemical name are 1-(6-chloropyridine-3-pyridylmethyl)-N-Nitroimidazoline-2-base amine.Structural formula is:
Imidacloprid is the nitro-methylene-type systemic insecticide; It is the acting body of nicotinic acid acetylcholinesterase acceptor; It is malfunctioning to disturb the pest movements nervous system that chemical signal is transmitted, and is mainly used in the control sucking pest, like aphid, plant hopper, aleyrodid, leafhopper, thrips; To coleoptera, diptera and lepidopterous some insect, also effective like Lissorhoptrus oryzophilus Kuschel, rice leaf beetles, rice borer, leaf miner etc.Can be used for crops such as paddy rice, wheat, corn, cotton, potato, vegetables, beet, fruit tree.Because its good interior absorption is particularly suitable for spreading the dispenser of granule mode.
The tradition processing formulation of Imidacloprid mainly contains missible oil, wetting powder, suspending agent, water dispersible granules, tablet etc.A common problem during these formulations are used is to use the back because reasons such as photodissociation (especially ultraviolet ray), hydrolysis, biological degradation, volatilization and losses; Cause its availability obviously to reduce; There is quite a few not act on target, and is wasted, caused environmental pollution simultaneously.According to investigations, when the agricultural chemicals that sprays is pulvis, medicament about 10% is only arranged attached on the plant corpus; During liquid, only have about 20% attached on the plant corpus.1%～4% of agricultural chemicals touches target pest, and all the other 40%～60% drop to ground, and 5%～30% medicament floats in the air, and the medicament of conventional method is efficient to have only 1%～30%, and percent of loss by all means is up to 50%～60%.The tradition processing formulation of Imidacloprid mainly contains formulations such as missible oil, wetting powder, suspending agent and all faces this problem equally.
Simultaneously; Because the development of industrialization and urbanization; The between twenty and fifty labour's in rural area transfer is gone out, rear personnel's aging and hope are intended to the rural area and are engaged in the number of hard working and sharply reduce; Poor efficiency, the arduous existing plant protection prevention and treatment method of damage by disease and insect have become the weak link of agricultural modernization, and therefore, the modern agricultural technology system of exploitation " efficient, saving of labor, laborsaving " also becomes the agricultural development emphasis direction.Therefore, from environmental protection and the angle that saves labor, exploitation Imidacloprid slow-releasing granules has extraordinary application prospect.Patent CN100442975C is disclosed to be active component with Imidacloprid etc., and modified starch and clay are filler, are the new sustained release granular pesticide of coating agent with tung oil, peanut wet goods, had good sustained release effect, but all oils sources are limited.Patent CN 101194624 discloses a kind of Imidacloprid/hydrotalcite-like compounds nano hybrid; By processing with surfactant-modified houghite with the Imidacloprid that the intercalation form is inserted wherein; Imidacloprid/HTLC nano hybrid is by the toluene/ethanol solution hybrid reaction of the HTLC of surfactant (SAA) modification and Imidacloprid and synthesize; Synthetic method is simple, and the medicine carrying amount is big, compares with the Imidacloprid bulk drug to have tangible slow release effect.But this method production time is slower, and the reaction time needs 4 days.Can find out that up to now, the Imidacloprid sustained release agent also has very big room for improvement, particularly aspect release time, burst size and production technology.
Summary of the invention
One of the object of the invention is to make full use of the strong characteristics of absorption in the Imidacloprid, develops a kind of imidacloprid pesticide novel form---Imidacloprid sustained-release granular formulation human and the environment harmonious development that helps, to overcome some defectives of conventional dosage forms.The object of the invention two reducing spraying times, reach the purpose that saves labor, efficiently utilizes Imidacloprid.Three of the object of the invention is to enhance productivity, with prepared Imidacloprid sustained-release granular formulation simply fast.Another object of the present invention is to improve the sustained release performance of Imidacloprid sustained release agent, prolongs slow-release time, has the performance of in the paddy field, using (also can use in dry land simultaneously).The invention also discloses the preparation method and the method for using of Imidacloprid sustained release agent.
A kind of Imidacloprid sustained-release granular formulation comprises following composition:
Imidacloprid: 0.1～10%
Adsorption stuffing: 56～97.5%
Auxiliary agent: 0.5～20%
Coated fertilizer: 0.5～15%
Above-mentioned adsorption stuffing is one or more in diatomite, potter's clay, kaolin, bentonite, molecular sieve, zeolite, the montmorillonite;
Above-mentioned auxiliary agent is one or more in stearic acid, neopelex, silicone oil, lauryl sodium sulfate, ethanol, the methyl alcohol;
Above-mentioned release-controlled coated material is polyolefin, butadiene rubber, gather hexylamine lactone, polyurethane, epoxy resin, SK curing agent, phenolic resins, furane resins, Lauxite, polyethylene, gather in allyl acetate, methylcellulose, the abietic resin one or more.
The preparation of described a kind of Imidacloprid sustained-release granular formulation, adopt following method to prepare:
(1). in proportion Imidacloprid, adsorption stuffing, auxiliary agent are put into the granulation dish, stir, water spray is prepared as 2～5 mm circular granulars;
(2). spray coated fertilizer and be heated to 100 ℃～120 ℃ by gradient except that water cure; The time of solidifying is 10～15 min;
(3). the granule of different gradient coatings is mixed according to a certain percentage, promptly is prepared into sustained-release granular formulation;
The content of the Imidacloprid described in the step (1) is 0.1%～10%, the content of adsorption stuffing is 56%～97.5%, the content of auxiliary agent is 0.5%～20%;
The quality of water accounts for 2%～15% of packing quality described in the step (1);
Coating quantity described in the step (2) is 0.5%～15%, and gradient is 0.5% to increase progressively successively to 15%;
The rotating speed that can heat granulating disc in step (1) and the step (2) is 20～120 r/min.
The application of described a kind of Imidacloprid sustained-release granular formulation is used for anti-eliminate aphis section, Delphacidae, Aleyrodidae, Cicadellidae insect.
The application of described a kind of Imidacloprid sustained-release granular formulation, described aphid section insect is aphid, cotten aphid, wheat aphid, black peach aphid; Described Delphacidae insect is a rice fulgorid; Described Aleyrodidae insect is sweet potato whitefly and greenhouse whitefly; Described Cicadellidae insect is little green statin leafhopper.
The application of described a kind of Imidacloprid sustained-release granular formulation, the scope of application of said Imidacloprid sustained-release granular formulation are vegetables, wheat, paddy rice, cotton, Chinese herbal medicine.
The application process of described a kind of Imidacloprid sustained-release granular formulation is characterized in that when seeding crops is perhaps transplanted, described pesticide slow-release granule being spread fertilizer over the fields in the soil, or is spreading fertilizer over the fields around crop rhizosphere during the plant growth.
The preparation of Imidacloprid sustained-release granular formulation of the present invention and application; Because Imidacloprid can be discharged in its surrounding environment by preset time slowly, its effect can be kept one period considerable time, thereby has prolonged the lasting period of agricultural chemicals; Reduced spraying times, the crop utilization rate is high; Also have simultaneously use conveniently, to the operator safely, beneficial effect such as save labor.
The preparation of Imidacloprid sustained-release granular formulation is convenient, and speed of production is fast, just can produce a collection of product in 30 minutes, and required various raw material sources are extensive.
Embodiment
Below embodiment further specify various aspects of the present invention, just to explanation the object of the invention, rather than protection scope of the present invention limited.
The preparation of embodiment 1 0.5% Imidacloprid sustained-release granular formulation
(1). Imidacloprid 50g,, detergent LS 50g, calcium lignosulfonate 20g, lauryl sodium sulfate 20g, diatomite is supplied 9750g.Add the granulation dish, stir, water spray is prepared as 2～5 mm circular granulars, and dry back is subsequent use; (2). spray 50% epoxy resin-SK curing agent and carry out coating, and be heated to 100 ℃～120 ℃ curing; The time of solidifying is 10～15 min, and the coating agent promptly obtains product after solidifying.
The mass percent of the quality of water and native ball quality is 2%～15% described in the step (1);
The rotating speed that can heat granulating disc in step (1) and the step (2) is 20～120 r/min.
Coating quantity described in the step (2) is 2.5%;
The preparation of embodiment 2 1.0% Imidacloprid sustained-release granular formulations
(1). Imidacloprid 100g, detergent LS 80g, calcium lignosulfonate 60g, lauryl sodium sulfate 100g, methylcellulose 50g, bentonite is supplied 9800g.Add the granulation dish, stir, water spray is prepared as 2～5 mm circular granulars, and dry back is subsequent use;
(2). spray 50% epoxy resin-SK curing agent and Lauxite and carry out coating, and be heated to 100 ℃～120 ℃ curing; The time of solidifying is 10～15 min, and the coating agent promptly obtains product after solidifying.
The mass percent of the quality of water and native ball quality is 2%～15% described in the step (1);
The rotating speed that can heat granulating disc in step (1) and the step (2) is 20～120 r/min.
Coating quantity described in the step (2) is 2%;
The preparation of embodiment 3 2.0% Imidacloprid sustained-release granular formulations
(1). Imidacloprid 200g, detergent LS 80g, calcium lignosulfonate 50g, lauryl sodium sulfate 50g, bentonite 40g, methylcellulose 50g, kaolin is supplied 9750g.Add the granulation dish, stir, water spray is prepared as 2～5 mm circular granulars, and dry back is subsequent use;
(2). spray 50% epoxy resin-SK curing agent and carry out coating, and be heated to 100 ℃～120 ℃ curing; The time of solidifying is 10～15 min, and the coating agent promptly obtains product after solidifying.
The mass percent of the quality of water and native ball quality is 2%～15% described in the step (1);
The rotating speed that can heat granulating disc in step (1) and the step (2) is 20～120 r/min.
Coating quantity described in the step (2) is 2.5%;
The preparation of embodiment 4 5.0% Imidacloprid sustained-release granular formulations
(1). Imidacloprid 500g, detergent LS 200g, calcium lignosulfonate 100g, lauryl sodium sulfate 50g, methylcellulose 200g, bentonite 4000g, potter's clay is supplied 9700g.Add the granulation dish, stir, water spray is prepared as 2～5 mm circular granulars, and dry back is subsequent use;
(2). spray 50% epoxy resin-SK curing agent and furane resins and carry out coating, and be heated to 100 ℃～120 ℃ curing; The time of solidifying is 10～15 min, and the coating agent promptly obtains product after solidifying.
The mass percent of the quality of water and native ball quality is 2%～15% described in the step (1);
The rotating speed that can heat granulating disc in step (1) and the step (2) is 20～120 r/min.
Coating quantity described in the step (2) is 3%;
Embodiment 5 Imidacloprid sulfur coatings
According to utility application numbers 201020591885.4; The preparation method that Granted publication CN 201846717 U are announced; Outer surface at Imidacloprid medicine matrix carries out coating; Solid sulfur added in the melting device melt, then in layer the coating uniformly of fusion sulphur is wrapped in the surface of Imidacloprid medicine matrix, finally form the sustained release coating layer of similar onion-skin structure.
The test of embodiment 6 release performances
Take by weighing 3 g, 1.0% Imidacloprid sustained-release granular formulation and be loaded in the nylon string bag, in 25 ℃ thermostatic chamber, soak with the mineral water bottle that 1000 mL are housed; After 1,3,5,7,10,14,21,28 day; With the pipette sampling, get two parts, every part 10 mL at every turn; The water sample that takes out then is with dichloromethane extraction three times (30 mL, 20 mL, 20mL); Collect organic facies; Place the pyriform bottle, under 45 ℃ of conditions the decompression revolve dried, use 1 mL methanol constant volume then after; After adopting high performance liquid chromatography that the concentration that from preparation, is discharged into the Imidacloprid in the water is analyzed, calculate its release rate such as table 1.
The release rate of table 1 1.0% Imidacloprid sustained-release granular formulation
Can find out from table: the Imidacloprid sustained-release granular formulation is in 1～48 day scope the embodiment 3; Release rate reduces gradually; The release rate of Imidacloprid sustained-release granular formulation just reaches 70.82% time 48 days; This speed that shows that Imidacloprid is discharged in the water is controlled, and at particle surface bundled slow-releasing coated fertilizer, the diffusion of pesticide activity component also can obtain more effectively controlling.And Imidacloprid sulfur coating product reaches 77.54% release in 1～10 day in the control Example 5, and rate of release is far faster than Imidacloprid sustained-release granular formulation among the embodiment 3.
Embodiment 7 field practical situations 1
Test objective
Study 2% slow release Imidacloprid granule and related agents thereof and handle control efficiency white-backed planthopper on the single cropping rice of mountain area, plateau.
Experimental condition
Trial crops: semilate rice section excellent 21
Controlling object: white-backed planthopper
Environmental condition: the test place is located at hole, Zhaoyang Town, Libo County, Guizhou Province Yang Ba (20 ° 41 of north latitude ', 109 ° 52 of east longitude ').The rice seedling bed soil types is a paddy soil, belongs to laterite and brown earth, clay soil, and middle fertility, pH is about 6.5, and the rice field physical features is smooth, and irrigation and drainage are convenient, and conditions such as all experimental plot cultivations and water and fertilizer management are all consistent.The rice seedling bed previous crops is a potato, and the Honda previous crops is a paddy rice.Single cropping rice output 8250 kg/hm
2Prepared non-irrigated seedling seedling bed in 5～10 April in 2011, sowing on April 15, every square of seeding quantity is wet paddy 60 g, May 25 transplanted.The harvesting time was 15～20 September.Planting patterns is to transplant the about 250,000 clumps/hm of planting density
2
Experimental scheme and arrangement
A supplies the reagent agent
[1] 2% Imidacloprid slow release granule,
Arrange the b sub-district
3 repetitions, totally 18 sub-districts are established in each processing.Each rice seedling bed, sub-district area is not less than 100 m
2, little field is block-shaped to be set according to the concrete landform in field, is shaped as rectangle or trapezoidal, long or wide 5 m～10 m that are controlled at, and arrange sub-district district's group at random.There is the guard row of wide 0.5 m (wide) minizone, adopts the plastic film covering or builds ridge isolation.Test is blank (CK) with the clear water, establishes following processing altogether, specifically is treated to:
Handle 1:Nursery period/2% slow release Imidacloprid granule.Be specially: when sowing nursery period, use 2% slow release Imidacloprid granule, using dosage is every mu 0.5 kg, evenly sows with the composite fertilizer mixing, with the covering of thin layer fine earth, does not remake other processing between field period then.
Handle 2:Nursery period/2% slow release Imidacloprid granule～field period/2% slow release Imidacloprid granule.Be specially: when sowing nursery period, use 2% slow release Imidacloprid granule, using dosage is every mu 0.5 kg, evenly sows with the composite fertilizer mixing, covers with the thin layer fine earth then.Shoot transplanting equipment land for growing field crops 1 day before adopts 2% slow release Imidacloprid granule evenly to sow the land for growing field crops earlier, transplants after 1 day.
Handle 3:The clear water contrast.Be specially: in whole paddy growth season, any medicament does not all use, and does not promptly take any prophylactico-therapeutic measures fully.
Spraying equipment and application method
Adopt backpack 3W-16 type hand sprayers (operating pressure 0.2～0.3 MPa, spray orifice bore 1.0 mm), water consumption 900 kg/hm
2, the constant even spraying.Also has power driven sprayer in addition?
Investigation content
The sick efficacy survey method of a white-backed planthopper and southern rice black-streaked dwarf
The white-backed planthopper investigation is according to Guizhou Province's provincial standard " the rice fulgorid monitoring technology standard DB52/T 396-2005 of Guizhou Province ", investigation and monitoring white-backed planthopper quantity.
The b determination of yield
September 12 in 2011 adopted the actual product of surveying to produce dual mode with theoretical the survey to early October, and survey is produced for reality: take the real cutting rice in full field, area and the paddy rice clump number of surveying the producing region are measured in on-the-spot threshing then, carry out conversion yield; Survey product for theory: the mode of random sampling has been carried out so-called " compasses " and has been surveyed product, 1 point of each sub-district picked at random, about 12 m of each vertex cut
2, claim after on-the-spot threshing, the removal of impurities that wet paddy is heavy, wet paddy to the constant weight of sampling paddy baking is calculated and is dried rate, uses 12 m again
2(greatly about 2 * 6 m) wet paddy weighs and the sample rate of drying is calculated per unit area yield.
C security survey and other investigation
The viewing test medicament has or not poisoning to produce to the influence of paddy growth.Observation has or not other damage by disease and insect to take place and the situation that causes harm, and in addition, the paddy rice of also observing the different disposal group is in the physical signs of whole growth in the cycle.
Data
All data are analyzed through SPSS 11.5 softwares; The prevention and control effect of southern rice black-streaked dwarf disease is at first through variance test of homogeneity (Test of Homogeneity of Variance); Then adopt One Way ONOVA to carry out the variance analysis between any two groups more than two groups; If homogeneity of variance adopts the LSD method to test; If heterogeneity of variance then adopts Dunnett T3 to test.Between two groups, compare, adopt Independent-Samples T Test to carry out variance analysis.
Result and analysis
The sick worm situation in field
Rice seedling bed, experimental field situation: white-backed planthopper, brown planthopper all have, and are main with white-backed planthopper, and the worm attitude is main with adult, and a small amount of nymph is arranged; This year, plant hopper was moved into more late than over the years owing to temperature after the spring is on the low side, 2d before transplanting, and promptly field, the rice seedling bed density on May 23 is merely 1～23/m
2, therefore, the vermins-proof effect in rice seedling bed can't be measured.
Land for growing field crops, experimental field situation: transplant back 10d, i.e. investigation on June 5, the worm attitude is an adult, nymph seldom, white-backed planthopper accounts for 90%, 1～8 the average hundred clumps of worms amounts in field handled are below 60, average hundred clumps of worms amounts in contrast field are 166.7.Transplant back 15d, i.e. investigation on June 15, the worm attitude is main with adult, and nymph is still less, and white-backed planthopper accounts for 95%, and the average hundred clumps of worms amounts in the field of processing 1～8 are 37～150.7, average hundred clumps of worm amounts in contrast field are 586.3.The white-backed planthopper adult reduces gradually later on, and the nymph ratio rises rapidly.Transplant back 25d, i.e. investigation on June 25, the worm attitude is main with nymph, and adult is less, and white-backed planthopper accounts for 95%, and the average hundred clumps of worms amounts in the field of processing 1～8 are 75.7～343.3, average hundred clumps of worm amounts in contrast field are 1921 (seeing table 2).This moment, paddy rice got into late tillering state, though later stage field white-backed planthopper worm amount is big, also not suiting breeding time, it is caused harm.
The prevention and control effect of rice fulgorid
For the various processing of 2% Imidacloprid slow release granule, the result is as shown in table 1.
The output investigation
The processing of 2% slow release Imidacloprid granule is adopted in rice seedling bed and land for growing field crops respectively, and output is at 678.15kg, and this processing of this results suggest has good control efficiency and effect of increasing production to white-backed planthopper.
Security survey and other investigation
No poisoning produces.The physical signs of whole growth in the cycle is normal.
Embodiment 8 field practical situations 2
The field control aphid
During sowing wild cabbage and 2% slow release Imidacloprid granule are applied in the sowing nest simultaneously, the sub-district area is 2m*6m, each sub-district particulate application agent 3g, and 6g, 12g repeats for three times, establishes a blank and imidacloprid wettable powder and mixes soil and spread fertilizer over the fields contrast.Investigated once result such as table 3. in per 7 days
Can find out that from table 2% slow release Imidacloprid granule is prevented eliminating aphis respond well, the lasting period is long, and 42 days preventive effect is appointed so up to 100% after the dispenser.
Conclusion
1 the present invention is the preparation and the application of Imidacloprid sustained-release granular formulation, and the Imidacloprid sustained-release granular formulation is made up of the former medicine of Imidacloprid, dispersant, diffusant, coating agent and filler.
The preparation of 2 Imidacloprid sustained-release granular formulations of the present invention comprises absorption, granulation, curing process, and production technology is simple.
3 Imidacloprid sustained-release granular formulations of the present invention, 48 days release rates in water are 70.82%, have sustained release performance preferably.
4 Imidacloprid sustained-release granular formulation effects of the present invention are better, can effectively prevent and treat crop pest, and applied range is easy to be converted into practical application.
Claims (9)
1. Imidacloprid sustained-release granular formulation is characterized in that comprising following composition:
Imidacloprid: 0.1～10%
Adsorption stuffing: 56～97.5%
Auxiliary agent: 0.5～20%
Coated fertilizer: 0.5～15%.
2. a kind of Imidacloprid sustained-release granular formulation according to claim 1 is characterized in that: described adsorption stuffing is one or more in diatomite, potter's clay, kaolin, bentonite, molecular sieve, zeolite, the montmorillonite.
3. a kind of Imidacloprid sustained-release granular formulation according to claim 1 is characterized in that: described auxiliary agent is one or more in stearic acid, neopelex, silicone oil, clarificant LS, calcium lignosulfonate, lauryl sodium sulfate, ethanol, the methyl alcohol.
4. a kind of Imidacloprid sustained-release granular formulation according to claim 1 is characterized in that: release-controlled coated material is polyolefin, butadiene rubber, SK curing agent, gather hexylamine lactone, polyurethane, epoxy resin, phenolic resins, furane resins, Lauxite, polyethylene, gather in allyl acetate, methylcellulose, the abietic resin one or more.
5. according to the preparation of the described a kind of Imidacloprid sustained-release granular formulation of claim 1, it is characterized in that adopting following method to prepare:
(1). in proportion Imidacloprid, adsorption stuffing, auxiliary agent are put into the granulation dish, stir, water spray is prepared as 2～5 mm circular granulars;
(2). spray coated fertilizer and be heated to 100 ℃～120 ℃ by gradient except that water cure; The time of solidifying is 10～15 min;
(3). the granule of different gradient coatings is mixed according to a certain percentage, promptly is prepared into sustained-release granular formulation;
The content of the Imidacloprid described in the step (1) is 0.1%～10%, the content of adsorption stuffing is 56%～97.5%, the content of auxiliary agent is 0.5%～20%;
The quality of water accounts for 2%～15% of packing quality described in the step (1);
Coating quantity described in the step (2) is 0.5%～15%, and gradient is 0.5% to increase progressively successively to 15%;
The rotating speed that can heat granulating disc in step (1) and the step (2) is 20～120 r/min.
6. the application of a kind of Imidacloprid sustained-release granular formulation according to claim 1 is characterized in that being used for anti-eliminate aphis section, Delphacidae, Aleyrodidae, Cicadellidae insect.
7. the application of a kind of Imidacloprid sustained-release granular formulation according to claim 6, described aphid section insect is aphid, cotten aphid, wheat aphid, black peach aphid; Described Delphacidae insect is a rice fulgorid; Described Aleyrodidae insect is sweet potato whitefly and greenhouse whitefly; Described Cicadellidae insect is little green statin leafhopper.
8. according to the application of claim 6 or 7 described a kind of Imidacloprid sustained-release granular formulations, the scope of application that it is characterized in that said Imidacloprid sustained-release granular formulation is vegetables, wheat, paddy rice, cotton, Chinese herbal medicine.
9. according to the application process of the described a kind of Imidacloprid sustained-release granular formulation of claim 1, it is characterized in that when seeding crops is perhaps transplanted, described pesticide slow-release granule being spread fertilizer over the fields in the soil, or spreading fertilizer over the fields around crop rhizosphere during the plant growth.
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| CN104126601A (en) * | 2014-07-31 | 2014-11-05 | 绍兴文理学院 | Preparation method for slow-release type imidacloprid granules |
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| WO2019015659A1 (en) * | 2017-07-21 | 2019-01-24 | 山东省农业科学院生物技术研究中心 | Coated controlled-release insecticide dedicated to peanuts and preparation method thereof |
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| CN103563893A (en) * | 2013-10-14 | 2014-02-12 | 广东中迅农科股份有限公司 | Slow release agent for pesticide granules |
| CN104126601A (en) * | 2014-07-31 | 2014-11-05 | 绍兴文理学院 | Preparation method for slow-release type imidacloprid granules |
| CN106614553A (en) * | 2016-11-08 | 2017-05-10 | 长安大学 | Pesticide slow-release agent and preparation method thereof |
| CN108651502A (en) * | 2017-03-28 | 2018-10-16 | 江苏龙灯化学有限公司 | A kind of solid Pesticidal combination and its method for preventing soil-dwelling pests |
| CN107279173A (en) * | 2017-06-29 | 2017-10-24 | 山东大农药业有限公司 | A kind of spacetabs type imidacloprid granule |
| WO2019015659A1 (en) * | 2017-07-21 | 2019-01-24 | 山东省农业科学院生物技术研究中心 | Coated controlled-release insecticide dedicated to peanuts and preparation method thereof |
| CN109221107A (en) * | 2018-09-12 | 2019-01-18 | 绩溪农华生物科技有限公司 | A kind of sustained releasing pesticide granule and preparation method thereof |
| CN109095995A (en) * | 2018-09-20 | 2018-12-28 | 绩溪农华生物科技有限公司 | A kind of water-absorbing-retaining sustained-release pesticides and preparation method thereof |
| CN110810406A (en) * | 2019-12-09 | 2020-02-21 | 江苏擎宇化工科技有限公司 | Imidacloprid granules and preparation method thereof |
| CN110810406B (en) * | 2019-12-09 | 2022-01-21 | 江苏擎宇化工科技有限公司 | Imidacloprid granules and preparation method thereof |
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