CN102461540B - Mixed herbicide containing cinosulfuron,cyhalofop-butyl and pendimethalin and application thereof - Google Patents
Mixed herbicide containing cinosulfuron,cyhalofop-butyl and pendimethalin and application thereof Download PDFInfo
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- CN102461540B CN102461540B CN2010105521558A CN201010552155A CN102461540B CN 102461540 B CN102461540 B CN 102461540B CN 2010105521558 A CN2010105521558 A CN 2010105521558A CN 201010552155 A CN201010552155 A CN 201010552155A CN 102461540 B CN102461540 B CN 102461540B
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- pendimethalin
- butyl
- cinosulfuron
- mixed herbicide
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Abstract
The invention discloses a herbicide, and specifically discloses a mixed herbicide containing cinosulfuron,cyhalofop-butyl and pendimethalin and application thereof, belonging to the technical field of pesticide. The herbicide takes the cinosulfuron,the cyhalofop-butyl and the pendimethalin as main effective ingredients; and a mass ratio of the cinosulfuron,the cyhalofop-butyl and the pendimethalin is 0.1-8.0:0.1-80:0.1-80. The mixed herbicide provided by the invention has obvious effects in application of weeding for paddy fields, in particular the application of preventing and eliminating various gramineae weeds, sedge weeds and broadleaf weeds in the paddy fields. Compared with a single agent, under the premise of improving the drug effect, the herbicide provided by the invention delays resistibility of the weeds, has a wide weeding spectrum and a long lasting period, and is safe to rice and succeeding crops.
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, cyhalofop-butyl and Pendimethalin.
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.
Not weeding of field it is reported that annual national paddy rice all is subject to crop smothering in various degree, if can make the paddy rice underproduction more than 50%.Weeds have the 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 caused in order to reduce crop smothering, reduce 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.The choose reasonable weed killer herbicide not only can reduce friend peasant labour intensity, shorten working time, but also can reduce, cultivate cost, reach the purpose of volume increase.
Cinosulfuron (Cinosulfuron), have another name called the 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 mainly absorbs by root and stem, is sent to meristematic tissue by conducting tissue, 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 the paddy rice body, active ingredient can be by urea bridge fracture, after methoxyl group hydrolysis, deamination and phenyl ring hydrolysis and the sucrose yoke approach such as close, finally be metabolized to non-poisonous material, half life period is less than 1 day in rice root, and the half life period is 3 days in the paddy rice leaf, so to rice safety.But, due to its water-soluble large (3.7g/L water), in water leaking paddy field, thereby may focus on the 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, pondweed, arrowhead, Monochoria vaginalis, invalid to barnyard grass and moleplant seed etc.
Cyhalofop-butyl (Cyhalofop-butyl), commodity are called a thousand pieces of gold, the phenoxy carboxylic acid herbicides of LG-DOW agricultural science company exploitation, chemical name: (R)-2-[4 (4-cyano group-2-fluorophenoxy) phenoxy group]-butyl propionate, its structural formula is as follows:
Cyhalofop-butyl is unique kind that paddy rice is had to tight security in aryloxyphenoxypropanoates class weed killer herbicide, the same with such other kinds, is also inner-adsorption conduction-type herbicide.Cyhalofop-butyl is absorbed by leaf sheath and the blade of plant corpus, the phloem conduction, accumulate the meristem zone in plant corpus, suppress acetyl-CoA carboxylase (ACCase), fatty acid is synthesized to be stopped, the growth division of cell can not normally be carried out, and film system etc. contains membrane structure to be destroyed, and finally causes plant death.From cyhalofop-butyl, be absorbed into the weeds Mortality Ratio slower, generally need 1-3 week.The symptom of weeds after dispenser is as follows: the tender shoots atrophy of four leaf phases, finally work hard lethal.The leaf rapidly of growing tri-leaf period stops growing after a couple of days, the how many appearance of limb edge are sallow, cause death.The Lao Ye of two leaf stage changes minimum, keeps green.Cyhalofop-butyl can be degraded to rapidly the diacid state to the acetyl-CoA carboxylase non-activity by paddy rice, thereby paddy rice is had to the safety of height.In soil and in typical paddy field water either, degraded is rapid because of it, therefore to succession crop safety.Be mainly used in preventing and kill off grassy weed.Cyhalofop-butyl is not only efficient to various barnyard grasses (comprising above the average age for marriage barnyard grass), also can prevent and kill off moleplant seed, lady's-grass, Paspalum distichum, green foxtail, eleusine indica, amur foxtail etc.Invalid to sedge family and broad leaved weed.
Pendimethalin (pendimethalin), the trade name weeding is logical, is the phenyl amines weed killer herbicide by BASF Corp's exploitation.
Chemical name: N-1-(ethyl propyl) 2,6-dinitro-3, the 4-dimethylaniline, its structural formula is as follows:
Pendimethalin is meristematic cell division inhibitor, mainly suppresses the meristematic cell division, does not affect the sprouting of weed seed, but works after suppressing weed seed germination during Young bud, stem and root absorption medicament.Dicotyledon is hypocotyl to the Pendimethalin absorption site, and monocotyledon is young shoot to Pendimethalin, and its symptom of being injured is that young shoot and secondary root are suppressed, finally causes death.Pendimethalin is mainly used in preventing and kill off annual gramineae and some annual broadleaf weed, as lady's-grass, eleusine indica, barnyard grass, annual bluegrass, multitude, kitchen garden, Amaranthus retroflexus, Asiatic plantain, corn sow thistle, amur foxtail, clearvers, green foxtail, volume stem knotweed, chickweed, summer cypress, nutgrass flatsedge, benbie, difformed galingale herb etc.Preemergence application after cereal plants, corn and rice growing, or shallow mixed soil is used before broad bean, cotton, peanut and large bean sprouts.But in vegetable fields, use before seedling or before transplanting, also can prevent and kill off the Tobacco Farm weeds.
Herbicide for paddy field is limit by crop safety at present, the 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.
Summary of the invention
The mixed herbicide that the purpose of this invention is to provide a kind of cinosulfuron-containing, cyhalofop-butyl and Pendimethalin.
Another object of the present invention is to provide the application of this weed killer herbicide.
The mixed herbicide of a kind of cinosulfuron-containing, cyhalofop-butyl and Pendimethalin, this weed killer herbicide be take cinosulfuron, cyhalofop-butyl and Pendimethalin and is main active ingredient, and the mass ratio of cinosulfuron, cyhalofop-butyl and Pendimethalin is 0.1～80: 0.1～80: 0.1～80.Preferably the mass ratio of cinosulfuron, cyhalofop-butyl and Pendimethalin is 1～70: 1～60: 1～60.
In described mixed herbicide, cinosulfuron, cyhalofop-butyl and Pendimethalin three's gross mass percentage composition is 1～85%, and preferably the gross mass percentage composition is 15～80%.
In the ternary built preparation of cinosulfuron of the present invention, cyhalofop-butyl and Pendimethalin, except the active ingredients such as cinosulfuron, cyhalofop-butyl and Pendimethalin, 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 allowed on agricultural chemicals, preferably be processed into suspending agent, wetting powder, water dispersion granule, missible oil or aqueous emulsion.
Mixed herbicide of the present invention can be applied before the paddy field seedling or in postemergence weed control, particularly in preventing and kill off paddy field, apply and have remarkable result in various grassy weeds, sedge weed or broad leaved weed.
Herbicidal composition of the present invention has the following advantages:
1, activity of weeding is high.Herbicidal composition of the present invention can kill weeds by three kinds of different approaches, wherein three kinds of active ingredient pluses and minuses complementation, three kinds of composite reagents not only can reduce the consumption of single dose greatly, according to specific, be made into the mixture use than row, can produce synergistic function, greatly improve the removing activity of weed killer herbicide.
2, herbicidal spectrum is wide, and the lasting period is long.The cyhalofop-butyl ester is effective to grassy weed; Cinosulfuron is mainly effective to broad leaved weed and sedge weed, and can only spread pesticide-clay mixture or spraying; And Pendimethalin except to some broad leaved weed effectively, grassy weed is also had to good effect, after the three mixes, action compensating, herbicidal spectrum is wider, and before seedling, Miao Houjun can use.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 the Pendimethalin of dinitroaniline and the cyhalofop-butyl of aryloxyphenoxypropanoates class, make medicament can effectively prevent the weeds except anti-sulfonylurea, in addition, reduce the pesticide resistance of weeds, extended the service life of medicament.
4, safe.Herbicidal composition of the present invention, be 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, under the prerequisite that has improved drug effect, paddy rice and succession crop all had to safety.
Embodiment
Embodiment 1
Cinosulfuron 1%, cyhalofop-butyl 1%, Pendimethalin 13%, alkylphenol polyoxyethylene 4%, the rare block compound 5% of polyoxyethylene polyoxy third, xanthans 2%, water to 100%, according to conventional formulation method, being mixed with active ingredient gross mass percentage composition is 15% suspending agent.
Embodiment 2
Cinosulfuron 4%, cyhalofop-butyl 60%, Pendimethalin 1%, NNO (sodium methylene bis-naphthalene sulfonate) 6%, sodium lignin sulfonate 4%, alkylphenol polyoxyethylene 5%, white carbon 9%, kaolin supplies 100%, and according to conventional formulation method, being mixed with active ingredient gross mass percentage composition is 65% wetting powder.
Embodiment 3
Cinosulfuron 70%, cyhalofop-butyl 2%, Pendimethalin 3%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and according to conventional formulation method, being mixed with active ingredient gross mass percentage composition is 75% water dispersible granules.
Embodiment 4
Cinosulfuron 5%, cyhalofop-butyl 15%, Pendimethalin 10%, ethylene oxide propylene oxide block copolymer 7%, sodium lignin sulfonate 1%, ethylene glycol 3%, toluene 20%, water supplies 100%, and according to conventional formulation method, being mixed with active ingredient gross mass percentage composition is 30% aqueous emulsion.
Embodiment 5
Cinosulfuron 15%, cyhalofop-butyl 5, Pendimethalin 60%, calcium dodecyl benzene sulfonate 6%, fatty alcohol-polyoxyethylene ether 7%, white carbon 9%, kaolin supplies 100%, and according to conventional formulation method, being mixed with active ingredient gross mass percentage composition is 80% wetting powder.
Embodiment 6
Cinosulfuron 10%, cyhalofop-butyl 20%, Pendimethalin 20%, calcium dodecyl benzene sulfonate 9%, alkylphenol polyoxyethylene 5%, dimethylbenzene to 100%, according to conventional formulation method, being mixed with active ingredient gross mass percentage composition is 50% missible oil.
Embodiment 7
1), toxicity determination test
Utilize the preparation in embodiment 1～4, measure its co-toxicity coefficient to the paddy field common weed.
Test method: quantitative weed seed is seeded in respectively in the Disposable paper cup of 9cm, sows 10～15 seeds in every glass, cultivate in illumination box, during the phase, do on composition spray in crawler type the processing of spraying until weeds 3～6 leaves.After processing, continue in greenhouse to cultivate, each processes the preventive effect to weeds routine observation, and each weeds fresh weight after processing of weighing after 30d is pressed the method for the nineteen sixty propositions such as Sun Yunpei, calculates its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient is greater than 100, shows that three kinds of active principles have synergistic effect, and co-toxicity coefficient is less than 100, shows that three kinds of active principles have antagonism.Measurement result as shown in Table 1 and Table 2.
Table 1 cinosulfuron and the Pendimethalin toxicity measurement result to difformed galingale herb
Table 2 Pendimethalin and the cyhalofop-butyl toxicity measurement result to barnyard grass
As can be seen from the above table, the co-toxicity coefficient after active principle is composite all is greater than 100, illustrates that the present invention has obvious synergistic effect.
2), field control effectiveness test
Reagent agent:
Ternary built weed killer herbicide in embodiment 1～4 4.
The contrast medicament:
20% cinosulfuron water dispersible granules (commercially available), 33% pendimethalin missible oil (commercially available), 10% cyhalofop-butyl missible oil (commercially available).
For studying thing: paddy rice
Rice seedlings was 3～5 leaf phases, grew fine, and 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, difformed galingale herb, lady's-grass, green foxtail, barnyard grass, eleusine indica.
Test method:
According to the area of experimental plot, the accurate good various medicaments of weighing, and, after being watered dilution, utilize knapsack sprayer, carry out even spraying, the Fan spray head of sprinkler selection weed killer herbicide special use.During spraying, note liquid is evenly sprayed application in experimental plot the phenomenon of accomplishing there is no drain spray, spraying more.
After test respectively after medicine 20d, 40d observe the weeds death condition, and the activity of weeding of more various medicaments, the results are shown in Table 3 and table 4.In addition, also to after medicine, observe the condition of production of crop in 1～15d, to investigate medicament, whether crop be had to poisoning, the results are shown in Table 5.
Table 3 field control effectiveness test result (20d after medicine)
Table 4 field control effectiveness test result (40d after medicine)
From table 3 and table 4, finding out, the present invention has significant preventive effect to grassy weed, broad leaved weed and sedge weed, and synergy is remarkable, and the lasting period is long.
The security survey result of table 5 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 (12)
1. the mixed herbicide of a cinosulfuron-containing, cyhalofop-butyl and Pendimethalin, it is characterized in that described mixed herbicide take cinosulfuron, cyhalofop-butyl and Pendimethalin and be main active ingredient, and prepare by the following method: cinosulfuron 1%, cyhalofop-butyl 1%, Pendimethalin 13%, alkylphenol polyoxyethylene 4%, the rare block compound 5% of polyoxyethylene polyoxy third, xanthans 2%, water to 100%, according to conventional formulation method, being mixed with active ingredient gross mass percentage composition is 15% suspending agent.
2. the mixed herbicide of a cinosulfuron-containing, cyhalofop-butyl and Pendimethalin, it is characterized in that described mixed herbicide take cinosulfuron, cyhalofop-butyl and Pendimethalin and be main active ingredient, and prepare by the following method: cinosulfuron 4%, cyhalofop-butyl 60%, Pendimethalin 1%, sodium methylene bis-naphthalene sulfonate 6%, sodium lignin sulfonate 4%, alkylphenol polyoxyethylene 5%, white carbon 9%, kaolin supplies 100%, and according to conventional formulation method, being mixed with active ingredient gross mass percentage composition is 65% wetting powder.
3. the mixed herbicide of a cinosulfuron-containing, cyhalofop-butyl and Pendimethalin, it is characterized in that described mixed herbicide take cinosulfuron, cyhalofop-butyl and Pendimethalin and be main active ingredient, and prepare by the following method: cinosulfuron 70%, cyhalofop-butyl 2%, Pendimethalin 3%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and according to conventional formulation method, being mixed with active ingredient gross mass percentage composition is 75% water dispersible granules.
4. the mixed herbicide of a cinosulfuron-containing, cyhalofop-butyl and Pendimethalin, it is characterized in that described mixed herbicide take cinosulfuron, cyhalofop-butyl and Pendimethalin and be main active ingredient, and prepare by the following method: cinosulfuron 5%, cyhalofop-butyl 15%, Pendimethalin 10%, ethylene oxide propylene oxide block copolymer 7%, sodium lignin sulfonate 1%, ethylene glycol 3%, toluene 20%, water supplies 100%, and according to conventional formulation method, being mixed with active ingredient gross mass percentage composition is 30% aqueous emulsion.
5. mixed herbicide claimed in claim 1 is before the paddy field seedling or the application in postemergence weed control.
6. mixed herbicide claimed in claim 2 is before the paddy field seedling or the application in postemergence weed control.
7. mixed herbicide claimed in claim 3 is before the paddy field seedling or the application in postemergence weed control.
8. mixed herbicide claimed in claim 4 is before the paddy field seedling or the application in postemergence weed control.
9. mixed herbicide claimed in claim 1 application in various grassy weeds, sedge weed or broad leaved weed in preventing and kill off paddy field.
10. mixed herbicide claimed in claim 2 application in various grassy weeds, sedge weed or broad leaved weed in preventing and kill off paddy field.
11. mixed herbicide claimed in claim 3 is the application in various grassy weeds, sedge weed or broad leaved weed in preventing and kill off paddy field.
12. mixed herbicide claimed in claim 4 is the application in various grassy weeds, sedge weed or 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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| CN2010105521558A CN102461540B (en) | 2010-11-19 | 2010-11-19 | Mixed herbicide containing cinosulfuron,cyhalofop-butyl and pendimethalin and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105521558A CN102461540B (en) | 2010-11-19 | 2010-11-19 | Mixed herbicide containing cinosulfuron,cyhalofop-butyl and pendimethalin and application thereof |
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| DE19834629A1 (en) * | 1998-07-31 | 1998-12-03 | Novartis Ag | Broad-spectrum pre- or post=emergence herbicidal composition |
| CN101401569B (en) * | 2008-11-13 | 2011-01-05 | 湖南大方农化有限公司 | Environment-friendly floating agrochemistic formulations for rice field and method of producing the same |
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