CN103039486B - Mixed herbicide containing cinosulfuron and cinmethylin and application thereof - Google Patents
Mixed herbicide containing cinosulfuron and cinmethylin and application thereof Download PDFInfo
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- CN103039486B CN103039486B CN201110316076.1A CN201110316076A CN103039486B CN 103039486 B CN103039486 B CN 103039486B CN 201110316076 A CN201110316076 A CN 201110316076A CN 103039486 B CN103039486 B CN 103039486B
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Abstract
The invention belongs to the technical field of agricultural chemicals and discloses a mixed herbicide containing cinosulfuron and cinmethylin and an application thereof. The mixed herbicide takes the cinosulfuron and the cinmethylin as main active ingredients, the mass ratio of the cinosulfuron to the cinmethylin is (0.1-80):(0.1-80), and the content in percentage by weight of the cinosulfuron and the cinmethylin in the mixed herbicide is 1-85%. The mixed herbicide disclosed by the invention has significant effects in applications in weeding of rice paddy fields, in particular to the applications in control of various grass family and broadleaf weeds in the rice paddy fields. Compared with a single agent, the herbicide disclosed by the invention can delay weed resistance and realize the advantages of broad weed control spectrum, long lasting period and safety against rice and afterreap crops on the premise of improving efficacy.
Description
Technical field
The invention belongs to technical field of pesticide, relate to a kind of weed killer herbicide, be specifically related to mixed herbicide and the application thereof of a kind of cinosulfuron-containing and cinmethylin.
Background technology
China is the country with the longest history of rice cropping in the world, and paddy rice is one of China's staple food crop, and approximately 3,300 ten thousand hectares of cultivated areas, account for 29% of plant of grain crops area.The most northern limit of China's paddy growth is Chinese Huma, Heilongjiang Province.But main growth district is south, Taiwan, the north is also rice cultivation of area along the river.That is to say, almost there is rice growth in most place.
Not weeding of field it is reported that annual national paddy rice is all subject to crop smothering in various degree, if can make the paddy rice underproduction more than 50%.Weeds have paddy field main harm: barnyard grass, moleplant seed, reed, firefly Lin, Herba Cyperi Glomerati, difformed galingale herb, cyperus iria, miliary fimbristylis herb, pondweed, Eclipta prostrata, wild arrowhead, Monochoria vaginalis etc.The economic loss causing in order to reduce crop smothering, reduces labor intensity, and also because chemical weed control is convenient, quick-acting, the control time is long, chemical weed control is accepted by people gradually simultaneously.
In recent years, along with increasing and the extensive popularization of chemical control technology in agricultural production of weed killer herbicide kind, chemical weed control has been widely used in each period of paddy growth.Because different regions climate characteristic is different from planting habit, sowing and the time of cultivating of paddy rice there are differences, but basic chemical weed control mode is identical, and what need consideration is mainly the factors such as temperature, soil property, rice varieties and farming custom.Choose reasonable weed killer herbicide not only can reduce friend peasant labour intensity, shorten working time, but also can reduce, cultivate cost, reach the object of volume increase.
Cinosulfuron (Cinosulfuron), has another name called first cinosulfuron, a kind of sulfonylurea herbicide, formal name used at school 1-(4,6-dimethoxy-1,3,5-triazines-2-yl)-3-[2-(2-methoxy ethoxy) phenyl sulphonyl] urea, its structural formula is as follows:
Cinosulfuron is mainly absorbed and is sent to meristematic tissue by conducting tissue by root and stem, suppresses the biosynthesis of branched-chain amino acid (as serine, isoleucine).After medication, weeds can be not dead immediately, but stop growing, and after 5-10 days, plant starts yellow, withered death.In paddy rice body, active ingredient can rupture by urea bridge, after methoxyl group hydrolysis, deamination and phenyl ring hydrolysis and sucrose yoke the approach such as close, finally be metabolized to non-poisonous material, in rice root, the half life period is less than 1 day, and in paddy rice leaf, the half life period is 3 days, so to rice safety.But due to its water-soluble large (3.7g/L water), in water leaking paddy field, thereby may focus on rice root district with water, paddy rice is caused to poisoning.For dry sowing, water, broadcast annual broadleaf weed and the sedge weeds such as rice field control rhizoma alismatis, nutgrass flatsedge, apple, pondweed, arrowhead, Monochoria vaginalis, invalid to barnyard grass and moleplant seed etc.
Cinmethylin (cinmethylin), commodity cut by Chinese mugwort by name, Shi You Shell Co. Ltd, Dupont development, the herbicide for paddy field of American Cyanamid Company (existing BASF AG) exploitation, chemical name: 1-methyl-4-(1-Methylethyl)-2-[(2-aminomethyl phenyl) methoxyl group]-7-evil two rings (2,2,1) heptane.Its structural formula is as follows:
Cinmethylin is processing soil treatment agent before selectivity inner sucting conduction type bud, can be by the root absorption of sensitive plant, and suppressing merismatic growth is that plant is dead.Paddy rice, cotton, peanut etc. are strong to the drug-resistant capability of this medicine, enter and make to be metabolised in object hydroxy derivatives, and be combined into conjugated compound and lose toxicity with the glucosides in plant corpus.In no water layer situation, be easily evaporated and photodissociation, and can be decomposed by edaphon.Have in water layer situation, decomposition rate slows down.Should be that main area is used annual weed, the lasting period be short, and weeding optimal period is that weeds are in seedling or young tender phase.Be mainly used in preventing and kill off barnyard grass, Monochoria vaginalis, arrowhead, firefly Lin, cyperus iria, difformed galingale herb etc.
Herbicide for paddy field is limit by crop safety at present, herbicide spectrum is also limited, use separately a kind of weed killer herbicide single dose can not control completely effectively the generation of paddy field weed, moreover some weed killer herbicide is due to water-soluble large or the field lasting period is oversize, consumption is excessive or dispenser is inhomogeneous all easily causes the residual hazard to this season crop or succession crop.Therefore, the present invention selects herbicide to compose different, after two kinds of suitable decrements of weed killer herbicide of the cinosulfuron of pluses and minuses complementation and cinmethylin, being made into mixture uses, so both expanded herbicide spectrum, obviously improve herbicidal effect, also avoided this season to make deposits yields poisoning and the possibility to succession crop generation residual hazard.
Summary of the invention
The mixed herbicide that the object of this invention is to provide a kind of cinosulfuron-containing and cinmethylin.
Another object of the present invention is to provide the application in early stage weeding after paddy field seedling of this mixed herbicide.
Object of the present invention can be achieved through the following technical solutions:
A mixed herbicide for cinosulfuron-containing and cinmethylin, it is main active ingredient that this mixed herbicide be take cinosulfuron and cinmethylin, the mass ratio of cinosulfuron and cinmethylin is 0.1～80: 0.1～80.Preferably the mass ratio of cinosulfuron and cinmethylin is 1～70: 1～60.The mass ratio of cinosulfuron and cinmethylin more preferably 1～40: 1～40.
In above-mentioned mixed herbicide, the two quality percentage composition in this mixed herbicide of cinosulfuron and cinmethylin is 1～85%, and preferred mass percentage composition is 15～80%.
In the binary built preparation of cinosulfuron of the present invention and cinmethylin, except the active ingredients such as cinosulfuron and cinmethylin, can also add the auxiliary agents such as conventional surfactants, thickener, solvent or solid packing that allow on pesticidal preparations and be mixed with any one formulation allowing on agricultural chemicals.Preferably be processed into oil-suspending agent, missible oil, water dispersible granules, wetting powder etc.
Mixed herbicide of the present invention can be applied in early stage weeding after paddy field seedling, and particularly in preventing and kill off paddy field, in various grass family, sedge family and broad leaved weed, application has remarkable result.
Beneficial effect of the present invention:
1, activity of weeding is high.Cinosulfuron is mainly absorbed and is sent to meristematic tissue by conducting tissue by root and stem, suppresses the biosynthesis of branched-chain amino acid (as serine, isoleucine).Cinmethylin is processing soil treatment agent before selectivity inner sucting conduction type bud, can, by the root absorption of sensitive plant, suppress merismatic growth.That is to say, herbicidal composition of the present invention can kill weeds by two kinds of different approaches, can greatly improve the removing activity of weed killer herbicide.
2, herbicidal spectrum is wide, and the lasting period is long.Cinosulfuron and cinmethylin are all broad spectrum weeding agent.After both mix, action compensating, herbicidal spectrum is wider, and, because cinosulfuron is mainly effective to broad leaved weed and sedge weed, and can spread pesticide-clay mixture or spraying; And cinmethylin is effective to barnyard grass, difformed galingale herb, Monochoria vaginalis etc., and can makes cauline leaf and process.So weed killer herbicide of the present invention has the double action in leaf surface treatment and feud, extended the lasting period of medicament.
3, delay Weed Resistance.Because weeds easily produce resistance to sulfonylurea herbicide, and in weed killer herbicide of the present invention, contain cinmethylin, make medicament can effectively prevent the weeds except anti-sulfonylurea, in addition, reduced the pesticide resistance of weeds, extended the service life of medicament.
4, safe.Herbicidal composition of the present invention, is applied to agent for removing grass in paddy field, and it can prevent and kill off various grass family, sedge family and broad leaved weed in paddy field, is improving under the prerequisite of drug effect, and paddy rice and succession crop are all had to safety.
Therefore, mixed herbicide of the present invention can be applied in agent for removing grass in paddy field, particularly in preventing and kill off paddy field, in various grass family, sedge family and broad leaved weed, applies.
Embodiment
Embodiment 1
Cinosulfuron 1%, cinmethylin 14%, alkylphenol polyoxyethylene 4%, the rare block compound 5% of polyoxyethylene polyoxy third, thickener 2%, adds vegetable oil to 100%, according to conventional formulation method, is mixed with the oil-suspending agent that the quality percentage composition of active ingredient is 15%.
Embodiment 2
Cinosulfuron 2%, cinmethylin 23%, ethylene glycol 5%, cyclohexanone 8%, polyoxyethylene groups alkyl ether 5%, vegetable oil to 100%, is mixed with according to conventional formulation method the missible oil that the quality percentage composition of active ingredient is 25%.
Embodiment 3
Cinosulfuron 5%, cinmethylin 70%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, adds diatomite and supplies 100%, according to conventional formulation method, is mixed with the water dispersible granules that the quality percentage composition of active ingredient is 75%.
Embodiment 4
Cinosulfuron 3%, cinmethylin 47%, NNO (sodium methylene bis-naphthalene sulfonate) 6%, sodium lignin sulfonate 5%, white carbon 9%, adds kaolin and supplies 100%, according to conventional formulation method, is mixed with the wetting powder that the quality percentage composition of active ingredient is 50%.
Embodiment 5
Cinosulfuron 60%, cinmethylin 20%, NNO (sodium methylene bis-naphthalene sulfonate) 5%, sodium lignin sulfonate 4%, white carbon 6%, adds kaolin and supplies 100%, according to conventional formulation method, is mixed with the wetting powder that the quality percentage composition of active ingredient is 80%.
Embodiment 6
Cinosulfuron 24%, cinmethylin 1%, NNO (sodium methylene bis-naphthalene sulfonate) 9%, alkylphenol polyoxyethylene 5%, adds sodium lignin sulfonate to 100%, according to the dry outstanding agent that to be mixed with the quality percentage composition of active ingredient be 25% of conventional formulation method.
Embodiment 7
Cinosulfuron 39%, cinmethylin 11%, ethylene glycol 5%, cyclohexanone 8%, polyoxyethylene groups alkyl ether 5%, vegetable oil to 100%, is mixed with according to conventional formulation method the missible oil that the quality percentage composition of active ingredient is 50%.
Embodiment 8
Cinosulfuron 0.1%, cinmethylin 80%, sodium lignin sulfonate 6%, neopelex 4%, ammonium sulfate 4%, adds diatomite and supplies 100%, according to conventional formulation method, is mixed with the water dispersible granules that the quality percentage composition of active ingredient is 80.1%.
Embodiment 9
Cinosulfuron 80%, cinmethylin 0.1%, sodium lignin sulfonate 6%, neopelex 4%, ammonium sulfate 4%, adds diatomite and supplies 100%, according to conventional formulation method, is mixed with the water dispersible granules that the quality percentage composition of active ingredient is 80.1%.
Embodiment 10
Cinosulfuron 70%, cinmethylin 1%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, adds diatomite and supplies 100%, according to conventional formulation method, is mixed with the water dispersible granules that the quality percentage composition of active ingredient is 71%.
Embodiment 11
Cinosulfuron 1%, cinmethylin 60%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, adds diatomite and supplies 100%, according to conventional formulation method, is mixed with the water dispersible granules that the quality percentage composition of active ingredient is 61%.
Embodiment 12
Cinosulfuron 40%, cinmethylin 1%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, adds diatomite and supplies 100%, according to conventional formulation method, is mixed with the water dispersible granules that the quality percentage composition of active ingredient is 41%.
Embodiment 13
Cinosulfuron 40%, cinmethylin 40%, NNO (sodium methylene bis-naphthalene sulfonate) 6%, sodium lignin sulfonate 4%, white carbon 6%, adds kaolin and supplies 100%, according to conventional formulation method, is mixed with the wetting powder that the quality percentage composition of active ingredient is 80%.
Embodiment 14
Cinosulfuron 1%, cinmethylin 40%, NNO (sodium methylene bis-naphthalene sulfonate) 9%, alkylphenol polyoxyethylene 5%, adds sodium lignin sulfonate to 100%, according to the dry outstanding agent that to be mixed with the quality percentage composition of active ingredient be 41% of conventional formulation method.
Embodiment 15
1, toxicity determination test
Utilize the preparation in embodiment 1,2,3,4, measure its co-toxicity coefficient to paddy field common weed Monochoria vaginalis.
Test method: the seed of quantitative Monochoria vaginalis is seeded in respectively in the Disposable paper cup of 9cm, sows 10～15 seeds in every glass, cultivate in illumination box, until Monochoria vaginalis 3～6 leaves during the phase, in the crawler type processing of doing to spray on composition spray.After processing, in greenhouse, continue cultivation, each processes the preventive effect to weeds routine observation, weighs the weeds fresh weight after each processing after 30d, by the method that the nineteen sixties such as Sun Yunpei propose, calculates its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient is greater than 100, shows that two kinds of active principles have synergistic effect, and co-toxicity coefficient is less than 100, shows that two kinds of active principles have antagonism.Measurement result is as shown in table 1.
Table 1 toxicity measurement result
As can be seen from the above table, the co-toxicity coefficient after two kinds of active principles are composite is all greater than 100, illustrates that the present invention has obvious synergistic effect.
2, field control effectiveness test
4 kinds of re-compounded binary herbicides in reagent agent: embodiment 1,2,3,4.
Contrast medicament: 20% cinosulfuron water dispersible granules (commercially available), 10% cinmethylin missible oil (commercially available).
For studying thing: paddy rice, rice seedlings was 3～5 leaf phases, grew fine, robust plant, without other damage by disease and insect.
Prevent and kill off object: the paddy field advantage weeds such as rhizoma alismatis, nutgrass flatsedge, apple, pondweed, arrowhead, lady's-grass, green foxtail, barnyard grass, moleplant seed, eleusine indica, Monochoria vaginalis.
Test method:
According to the area of experimental plot, accurately weigh good various medicaments, and be watered after dilution, utilize knapsack sprayer, carry out even spraying, the Fan spray head of sprinkler selection weed killer herbicide special use.During spraying, note liquid evenly to spray application in experimental plot the phenomenon of accomplishing there is no drain spray, spraying more.
After test, after medicine, 20d, 40d observe weeds death condition respectively, and the activity of weeding of more various medicaments.In addition, also to after medicine, in 1～15d, observe the condition of production of crop, to investigate medicament, whether crop be had to poisoning.
Embodiments of the invention preparation weeding test effect see the following form 2 (20d after medicine) and table 3 (40d after medicine)
Table 2 field control effectiveness test result (20d after medicine)
Table 3 field control effectiveness test result (40d after medicine)
From table 2 and table 3, can find out, the present invention has significant preventive effect to grassy weed, sedge family and broad leaved weed, and synergy is remarkable, and the lasting period is long.
The security survey result of table 4 medicament to crop
Each is processed, and in community, the rice is doing well, has no any medicine spot, illustrates that various medicaments are to the equal safety of paddy rice.
Claims (1)
1. a mixed herbicide for cinosulfuron-containing and cinmethylin, is characterized in that it is active ingredient that this mixed herbicide be take cinosulfuron and cinmethylin, and the mass ratio of cinosulfuron and cinmethylin is 1:14,1:11.5,3:47.
2. mixed herbicide according to claim 1, is characterized in that the two quality percentage composition in this mixed herbicide of cinosulfuron and cinmethylin is 1 ~ 85%.
3. mixed herbicide according to claim 2, is characterized in that the two quality percentage composition in this mixed herbicide of cinosulfuron and cinmethylin is 15 ~ 80%.
4. mixed herbicide according to claim 1, is characterized in that this mixed herbicide take the auxiliary agent that cinosulfuron and cinmethylin allow on active ingredient and pesticidal preparations and be mixed with any one formulation.
5. mixed herbicide according to claim 4, is characterized in that described formulation is oil-suspending agent, dry outstanding agent, missible oil, water dispersible granules or wetting powder.
6. mixed herbicide claimed in claim 1 application in early stage weeding after paddy field seedling.
7. mixed herbicide claimed in claim 1 application in various grass family, sedge family and broad leaved weed in preventing and kill off paddy field.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110316076.1A CN103039486B (en) | 2011-10-17 | 2011-10-17 | Mixed herbicide containing cinosulfuron and cinmethylin and application thereof |
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| CN201110316076.1A CN103039486B (en) | 2011-10-17 | 2011-10-17 | Mixed herbicide containing cinosulfuron and cinmethylin and application thereof |
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| CN103039486A CN103039486A (en) | 2013-04-17 |
| CN103039486B true CN103039486B (en) | 2014-04-16 |
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| EP3319438B1 (en) * | 2015-07-10 | 2019-09-11 | BASF Agro B.V. | Herbicidal composition comprising cinmethylin and specific photosystem ii inhibitors |
| CN109287675A (en) * | 2018-10-23 | 2019-02-01 | 安徽绿亿种业有限公司 | Herbicides special and preparation method thereof before a kind of rice seedlings |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1183895A (en) * | 1997-12-23 | 1998-06-10 | 宜兴市益农化工厂 | Suberyl oxalether bensulfuron methyl wettable powder |
| CN1382376A (en) * | 2001-04-25 | 2002-12-04 | 陈丰喜 | Herbicide composition |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1183895A (en) * | 1997-12-23 | 1998-06-10 | 宜兴市益农化工厂 | Suberyl oxalether bensulfuron methyl wettable powder |
| CN1382376A (en) * | 2001-04-25 | 2002-12-04 | 陈丰喜 | Herbicide composition |
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Effective date of registration: 20180516 Address after: 211318 Dongfeng Road 8, Yalong Town, Gaochun, Nanjing, Jiangsu Co-patentee after: Nanjing Redsun Co., Ltd. Patentee after: Nanjing Huazhou Pharmaceutical Co., Ltd. Address before: 211318 Dongfeng Road 8, Yalong Town, Gaochun, Nanjing, Jiangsu Patentee before: Nanjing Huazhou Pharmaceutical Co., Ltd. |
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