CN102696586B - Mixed granular preparation with slow/controlled-release pesticide granules and non-slow/controlled-release pesticide granules - Google Patents
Mixed granular preparation with slow/controlled-release pesticide granules and non-slow/controlled-release pesticide granules Download PDFInfo
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Abstract
The invention relates to a mixed granular preparation with slow/controlled-release pesticide granules and non-slow/controlled-release pesticide granules. The mixed granular preparation with the slow/controlled-release pesticide granules and the non-slow/controlled-release pesticide granules is prepared by uniformly mixing agrochemical active substances with a filler material and a surfactant and coating a mixture with covering films with different thicknesses and not coating part of the mixture. The mixed granular preparation with the slow/controlled-release pesticide granules and the non-slow/controlled-release pesticide granules not only can retain original fast-acting property of pesticidal effective activity, but also can improve the physical and chemical stability of the pesticidal effective activity and make up a defect that the original lasting property is short, can expand the pesticidal spectrum and has fast-acting, medium-acting and long-acting properties; the mixed granular preparation is applied once for all to ensure that crops are not damaged by pests any longer, robustly growing in the life time; the yield is improved, the energy is saved, and the labor is saved; and the environment pollution and agricultural residues caused by the pesticide are reduced.
Description
Technical field
The present invention relates to pesticide field, relate in particular to the mixing granules agent of a kind of tool slow control property agricultural chemicals grain and non-slow control agricultural chemicals grain.
Background technology
Slow control pesticidal preparations means that pesticide active ingredient can discharge with the speed of being scheduled within the predetermined time automatically, even if its follow procedure discharges quantitatively, makes its lasting period and corresponding crop growth phase basic identical.
The slow release agricultural chemicals of controlling is generally applicable to shorter pesticide active ingredient of half life period, as sandworm toxin insecticide.Slow control pesticidal preparations can reduce medication number of times, alleviate peasant's labour intensity, improve the availability of pesticidal active substance, extend utilizing the time and effectively reducing because using regular dosage form agricultural chemicals cause to the pollution of environment and the residual increase of agricultural product of pesticidal active substance.
From nineteen thirty, report film coating and be applied to after pharmacy industry the fifties, people are controlled medicine active substance release to utilizing dressing to delay has had new understanding, thinks that it is the combination of science and technology.Development along with polymer science, the new polymeric material with various performances is constantly referred to people's with medicament field, adopt the object of solid dosage forms dressing to improve medicine stability except reaching, the more important thing is for improving pharmaceutical properties and making up the defect that medicine itself exists physicochemical property, as be applied to agricultural chemicals sandworm toxin insecticide, just can make sandworm toxin insecticide in coating membrane except character is more stable, also made up its water-soluble height, the defect that lasting period is short, so the slow controlled release novel form agricultural chemicals of application coating membrane preparation is an important development.
Certainly the slow controlling agent part that also comes with some shortcomings, such as discharging, pesticide active ingredient is slow, so active ingredient onset is also slow compared with general formulation, this is the existing common fault of all slow controlled release pesticidal preparations at present.Patent ZL200510086692.7, name is called in a kind of method preparation of sustained releasing pesticide granule, water-soluble sandworm toxin insecticide cannot fully mix with gelatinization shape modified starch, by the defect that modified starch wrapped up of gelatinization, but also can not keep the original quick-acting characteristics of two class pesticidal active substances.CN01143846.0 patent can only controlled release and the original quick-acting advantage of pesticide activity component is lost, if use CN01143846.0 patent, manufacture the slow control particle of water-soluble high desinsection list and two kinds of active substances of water-soluble low Diacloden, peasant's medication custom is to have seen worm just to go medication, result can make crops be endangered because having lost original quick-acting function, and this is also simple slow control property agricultural chemicals defect.CN01143845.2 patent is that water-soluble high active agricultural chemicals is wrapped in to the inside, and shield with slow-release material, particle outermost is with stickum, water-soluble low active substance to be adhered to superincumbent, profit prepare in this way insecticide in water-soluble high neires toxin more than one with water-soluble low nicotinoids in more than one making controlled release hybrid particles of insecticide, the original quick-acting of its sandworm toxin insecticide will be lost to some extent.No matter be the preparation method in CN01143846.0 or CN01143845.2, all adopt two or more different water-soluble actives to be distributed in the method that is not same layer, be that water-soluble high active substance is in particle the inside, water-soluble low active substance is in the outside of particle, meeting impact the quick-acting of agricultural chemicals, thereby affects the drug effect of agricultural chemicals.
Summary of the invention
(1) technical problem that will solve
The object of the present invention is to provide a kind of granula with slow control property agricultural chemicals grain and non-slow control agricultural chemicals grain mixing; it can both retain the original quick-acting of agricultural chemicals effective active; can improve again the physical and chemical stability of this agricultural chemicals effective active and make up the short defect of original lasting effect; expand insecticidal spectrum, make quick-acting, the middle effects of its tool and long-acting characteristic, applied once; no longer suffer the harm of disease worm in one season of crop; all one's life, healthy and strong growth, improved the energy-conservation saving of labor of output, and minimizing agricultural chemicals is residual to environment and agricultural product.
(2) technical scheme
In order to address the above problem, the present inventor has conducted intensive studies, and has developed a kind of quick-acting, middle effect and long-acting having both and granula that the non-slow control agricultural chemicals grain of slow control agricultural chemicals grain that insecticidal spectrum is wide mixes.
A mixing granules agent for the slow control property of tool and non-slow control agricultural chemicals grain, it is prepared and obtained by following steps
1, pesticidal active substance is mixed with inserts, surfactant;
2, the product in the 1st step is added and in disk, rotary drum granulator or extrusion equipment, carry out granulation;
3, the product of the 2nd step is dried by drying plant, and sieve, the 2nd step, again granulation pulverized and turned back to the defective part of sieving out;
4, screening certified products out in the 3rd step, according to mass percent meter, are first separated to 5% ~ 50%, remaining certified products coated fertilizer coating;
5, the product that wrapped film in the 4th step according to mass percent meter, first separate 5% ~ 50%, remaining bag the product coated fertilizer coating of film;
6, according to product, use the length in the vegetative period of crop, the product that wrapped film in the 5th step is repeated n time according to the method by the 5th step, reach and before molten time outside film of active substance and use crop harvesting, needed in film time the last week of discontinuing medication basic identical, wherein 3≤n≤10;
7, the resulting all products of the 4th step to the 6 step are mixed, both must there is the granula that slow control property agricultural chemicals grain and non-slow control agricultural chemicals grain mix.
Further, pesticidal active substance, inserts and surfactant in the 1st described step are according to weight percent meter, and pesticidal active substance is 1% ~ 20%, and surfactant is 0.1% ~ 10%, and surplus is inserts.
Further, described pesticide activity component is nicotinic insecticide and/or sandworm toxin insecticide.
Further, described nicotinic insecticide is one or more mixture of Imidacloprid, clothianidin, Diacloden, thiacloprid, MTI-446, Nitenpyram.
Further, described sandworm toxin insecticide is one or more mixture of cartap, dimehypo, desinsection list, thiocyclam.
Further, described coated fertilizer is one or more the mixture in cellulose acetate, ethyl cellulose, pitch, vegetable oil, resinae coated fertilizer.
Further, described inserts is general clay.
Further, described surfactant is anion surfactant and/or non-ionic surface active agent.
Further, described membrane wrapping thickness is 0.1 micron ~ 1000 microns.
beneficial effect of the present invention:
The present invention adopts not coating of parcel different-thickness clothing film and part, finally they are evenly mixed to use, the existing slow-released part part that has immediate effect again, thereby reach not only quick-acting but also in effect long-acting object also, it can both retain the original quick-acting of agricultural chemicals effective active, can improve again the physical and chemical stability of this agricultural chemicals effective active and make up the short defect of original lasting effect, expand insecticidal spectrum, make its tool quick-acting, middle effect and long-acting characteristic, applied once, no longer suffer the harm of disease worm in one season of crop, healthy and strong growth in all one's life, improve the energy-conservation saving of labor of output, minimizing agricultural chemicals is residual to environment and agricultural product.
Embodiment
Below in conjunction with specific embodiment, the present invention is described further.
embodiment 1
The slow control of 10% desinsection list and a non-slow control mixing granules agent, it is prepared and obtained by following steps,
1,112.5 kilograms of 90% desinsection lists, 5kg neopelex are mixed with 872.5 kilograms of general clays;
2, the product in the 1st step is carried out to disc granulation;
3, the product in the 2nd step is dried, and screening, the 2nd step, again granulation pulverized and turned back to the defective part of sieving out;
4, screening certified products out in the 3rd step are first separated to 200 ㎏, remaining part coated with resin, membrane wrapping thickness is one micron;
5, the product that wrapped film in the 4th step is first separated to 200 ㎏, remaining part coated with resin, one micron of membrane wrapping thickness;
6, the product that again wrapped film in the 5th step is first separated to 200 ㎏, remainder coated with resin, one micron of thickness;
7, the product that again wrapped film in the 6th step is first separated to 200 ㎏, remainder coated with resin, one micron of thickness;
8, all products in 4th ~ 6 steps are fully mixed, obtain the slow control property of 10% desinsection list and non-slow control mixing granules agent.
embodiment 2
The slow control of 10% thiamethoxam disinsection list and a non-slow control mixing granules agent, it is prepared and obtained by following steps
1,96% Diacloden 10.5 ㎏, 90% desinsection list 105 ㎏, this quality of 10kg sulfoacid calcium, 874.5 ㎏ clays are mixed;
2, the product in the 1st step is carried out to drum granulating;
3, the product in the 2nd step is dried, and screening, the 2nd step, again granulation pulverized and turned back to the defective part of sieving out;
4, screening certified products out in the 3rd step are first separated to 200kg, remaining part ethyl cellulose coating, 2 microns of thickness;
5, the product that wrapped film in the 4th step is first separated to 150 ㎏, remaining part carries out coating with ethyl cellulose, 5 microns of thickness;
6, the product that again wrapped film in the 5th step is first separated to 150kg, remaining part coated with resin, 1 micron of thickness
7, the product that again wrapped film in the 6th step is first separated to 200kg, remaining part coated with resin, 1 micron of thickness;
8, all products in 4th ~ 7 steps are fully mixed, both obtained the slow control of 10% thiamethoxam disinsection list and non-slow control mixing granules agent.
The slow control of 3 one kind of 5% Imidacloprid thiocyclam of embodiment and non-slow control mixing granules agent
It is to be prepared from by following steps:
1, the former medicine of 10.2kg Imidacloprid, the former medicine of 42.5kg thiocyclam, 10kg neopelex and 900kg clay are uniformly mixed.
2, the mixture pelleting in step 1.
3, the product in step 2 is dried and sieved, sieve out underproof part and pulverize and turn back to step 2 granulation again.
4, screening certified products out in step 3 are separated to 300kg, remaining part carries out coating with cellulose acetate, 3 microns of thickness;
5, the product that wrapped film in step 4 is separated to 100kg, vegetable oil coating 1 micron thickness for remaining part;
6, the granula of again wrapping film in step 5 is separated to 100kg, molten molten pitch coating 2 micron thickness for remaining part.
7, the granula of wrapping asphalt membrane in step 6 is separated to 200kg, remaining part coated with resin, 1 micron of thickness.
8, separating 200kg, the film of resin bag 1.5 micron thickness for remaining part with the product that resin bag is crossed film in step 7.
9, products all in step 4-8 is fully mixed, make the slow control of 5% Imidacloprid thiocyclam and non-slow control mixing granules agent.
The slow control of 5% Imidacloprid thiocyclam and non-slow control mixing granules agent are to 2 committee noctuids of corn, cutworm, plant hopper, aphid, after corn seeding, adopt ditch spread control once, at corn, in the whole season of growth, after its medicine, to the average preventive effect of above insect, be between 86.5 ~ 92.9%, to corn safety.
the effect experiment of medicine field
field trial 1
The slow control of 10% desinsection list and the non-slow control mixing granules agent control snout moth's larva of rice test of pesticide effectiveness
1 test objective
Verify that the slow controlled release of 10% desinsection list and non-slow controlled release mixing granules agent are to the preventive effect of rice borer, quick-acting and lasting effect.
2 experimental conditions
2.1 subjects: the snout moth's larva of rice
2.2 experiment places: Mao Zhuan village, Huayuankou township, Zhengzhou City
3experimental scheme arranges
The slow control grain of 10% desinsection list that 3.1 test medicines: embodiment 1 is prepared and the mixing granules agent of non-slow control grain
3.2 contrast medicaments: 10% desinsection simple grain agent
3.3 experimental design
4 test area and repetition
4.1 areas: this test area is 2 mu (1334 ㎡).
Number of repetition is to repeat ，She Yige blank test district 4 times, and totally 9 districts, adopt the mode of random district group arrangement to arrange while carrying out the test of pesticide effectiveness.
5 application methods
5.1 accurately weigh respectively reagent agent by above-mentioned test, and arrange community by experimental scheme; By every mu of 2000g dosage, amount to every community 444.4g, blank not medication of community.
5.2 spraying times and number of times
On June 27th, 2011, when after rice transplanting, seedling has just been turned green, according to experimental scheme respectively process community dosage, rice borer is spread fertilizer over the fields to control once.
6 investigation and records
6.1 control times and number of times
6.1.1 control time be after dispenser 3 days be June 30, after dispenser 15 days is July 15, after dispenser 30 days and 60 days each once, i.e. each investigation of August 14 and September 13 once, totally 4 times.
7 results and analysis
Evaluating drug effect and analysis:
As can be seen from Table 2,
(1) after dispenser 3 days, two kinds of formulations all more than 90%, illustrated that the slow controlled release of 10% desinsection list and non-slow controlled release mixing granules agent have the feature of former the killing property of speed of desinsection list to the preventive effect of rice borer;
(2) investigation result on July 15 shows, the preventive effect of 10% slow controlled release and non-slow controlled release mixing granules agent is significantly higher than 10% desinsection simple grain agent, and the investigation result in August 14 and September 13 is that the preventive effect of the slow controlled release of 10% desinsection list and non-slow controlled release mixing granules agent is especially far away higher than 10% desinsection simple grain agent preventive effect.Conclusion proves that the slow controlled release of 10% desinsection list and the existing quick-acting of non-slow controlled release mixing granules agent have again middle effect and long-lasting, and applied once can meet the needs to snout moth's larva control in paddy rice whole vegetative period.
effect experiment 2
The slow controlled release of 10% thiamethoxam disinsection list and non-slow controlled release mixing granules agent are to the snout moth's larva of rice, plant hopper efficiency test
1 test objective
Verify insecticidal spectrum, the quick-acting and long-lasting of the slow controlled release of 10% thiamethoxam disinsection list and non-slow controlled release mixing granules agent.
2 experimental conditions
2.1 subjects: water rice hopper, snout moth's larva
2.2 test sites: Xi Huangliu village, Huayuankou township, Zhengzhou City
3 experimental scheme and arrangement
The slow control of 10% thiamethoxam disinsection list and non-slow control mixing granules agent that 3.1 test medicines: embodiment 2 is prepared
3.2 contrast medicaments: 10% thiamethoxam disinsection simple grain agent (mixture of 1% Diacloden granula and 9% desinsection simple grain agent); 1% Diacloden granula; 9% desinsection simple grain agent.
3.3 experimental design
4 test area and number of repetition
4.1 areas: this test area is that 2 mu (1334 ㎡) repeat 4 times, and it is 78.5 ㎡ that ，Mei district, ，Gong17Ge district, clear area area is set.
5 application methods
5.1 accurately weigh respectively reagent agent by above-mentioned experimental scheme, and arrange community by design, by every mu of 2000g pharmaceutical quantities, use ，Mei community 235.4g, blank not medication of community.
5.2 spraying times and number of times
On June 15th, 2011, when after rice transplanting, seedling is turned green, according to experimental scheme respectively process community dosage, the snout moth's larva of rice and the plant hopper mode of spreading fertilizer over the fields are prevented and treated once.
6 investigation and records
6.1 control times and number of times
6.1.1 control time is within after dispenser 3 days, to be to investigate once June 18, within after medicine 15 days, is to investigate once July 3, within after dispenser 30 days and 60 days, respectively investigates once, respectively investigates once on August 2 and September 1, investigates altogether 4 times.
7 results and analysis
Toxicity Analysis and evaluation
As can be seen from Table 4:
(1) after medicine, the slow controlled release of 3 days 10% thiamethoxam disinsection lists and non-slow controlled release mixing granules agent and 10% thiamethoxam disinsection simple grain agent are little to water rice hopper and snout moth's larva preventive effect difference, with 1% Diacloden granula comparison, anti-water rice hopper effect is basically identical, not remarkable to snout moth's larva of rice preventive effect yet difference with 9% desinsection simple grain agent, but be significantly higher than 1% Diacloden granula to snout moth's larva of rice preventive effect and 9% desinsection simple grain agent the preventive effect to water rice hopper, illustrate that the slow control of 10% thiamethoxam disinsection list has quick-acting and broad spectrum activity equally with non-slow control mixing granules agent and 10% thiamethoxam disinsection simple grain agent;
(2) after medicine, 15 days, 30 days, 60 days investigation results show, the slow controlled release of 10% thiamethoxam disinsection list is compared three kinds of preparation preventive effects of the preventive effect of water rice hopper and snout moth's larva and other with non-slow controlled release mixing granules agent, be significantly higher than other three kinds of preparations, prove that the slow controlled release of 10% thiamethoxam disinsection list and non-slow controlled release mixing granules agent have longer lasting effect, once spread fertilizer over the fields, substantially can prevent and treat paddy rice snout moth's larva and the plant hopper in whole vegetative period, energy-saving and environmental protecting, save labor.
Above embodiment is only for illustrating the present invention, rather than protection scope of the present invention is limited.Those skilled in the art can change and revise it after understanding spirit of the present invention and principle, thereby reaches equivalent object, and these changes all should be covered by the present invention with modification.
Claims (1)
1. a mixing granules agent for the slow control property of tool and non-slow control agricultural chemicals grain, is characterized in that, it is prepared and obtained by following steps:
(1), pesticidal active substance is mixed with inserts, surfactant; Described pesticidal active substance, inserts and surfactant are according to weight percent meter, and pesticidal active substance is 1% ~ 20%, and surfactant is 0.1% ~ 10%, and surplus is inserts, and inserts is clay; Described pesticide activity component is nicotinic insecticide and/or sandworm toxin insecticide; Described nicotinic insecticide is one or more mixture of Imidacloprid, clothianidin, Diacloden, thiacloprid, MTI-446, Nitenpyram; Described sandworm toxin insecticide is one or more mixture of cartap, dimehypo, desinsection list, thiocyclam; Described surfactant is anion surfactant and/or non-ionic surface active agent;
(2), the product in (1) step is added and in disk, rotary drum granulator or extrusion equipment, carry out granulation;
(3), the product of (2) step is dried by drying plant, and sieve, the 2nd step, again granulation pulverized and turned back to the defective part of sieving out;
(4), certified products out of screening in (3) step according to mass percent meter, first separate 5% ~ 50%, remaining certified products coated fertilizer coating, described coated fertilizer is one or more the mixture in cellulose acetate, ethyl cellulose, pitch, vegetable oil, resinae coated fertilizer;
(5), the product that wrapped film in (4) step according to mass percent meter, first separate 5% ~ 50%, remaining bag the product coated fertilizer coating of film; The length of using the vegetative period of crop according to product, repeats n time, 3≤n≤10 wherein, and described membrane wrapping thickness is 0.1 micron ~ 1000 microns;
(6), (4) step and the resulting all products of (5) step are mixed, obtain the mixing granules agent of the slow control property of a kind of tool and non-slow control agricultural chemicals grain.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102972429A (en) * | 2012-12-24 | 2013-03-20 | 海利尔药业集团股份有限公司 | Insecticidal composition containing dinotefuran and thiocyclam |
| CN103271072A (en) * | 2013-05-30 | 2013-09-04 | 南宁市德丰富化工有限责任公司 | Insecticidal and synergistic composition containing cartap |
| CN103772068B (en) * | 2014-01-07 | 2016-01-20 | 叶长东 | A kind of Humic acid type organic-inorganic medicine fertilizer composition comprising neires toxin and nicotinic insecticide utilizing sugar refinery, grain distillery's waste |
| CN104609988A (en) * | 2014-04-29 | 2015-05-13 | 河南远见农业科技有限公司 | Paddy rice insecticide-fertilizer mixed formulation containing thiamethoxam.cartap and production method thereof |
| CN105746565B (en) * | 2015-12-28 | 2018-07-03 | 山东潍坊润丰化工股份有限公司 | A kind of Pesticidal combination containing Diacloden and Cupric sulfate and its preparation method and application |
| CN106035323B (en) * | 2016-05-25 | 2018-12-11 | 广西南宁农事帮农业科技服务有限公司 | A kind of sustained releasing pesticide granule and preparation method thereof |
| CN111513079A (en) * | 2020-06-02 | 2020-08-11 | 太仓优活生物技术有限公司 | Bactericide with trapping and killing effect |
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