CN102461540A - 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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- CN102461540A CN102461540A CN2010105521558A CN201010552155A CN102461540A CN 102461540 A CN102461540 A CN 102461540A CN 2010105521558 A CN2010105521558 A CN 2010105521558A CN 201010552155 A CN201010552155 A CN 201010552155A CN 102461540 A CN102461540 A CN 102461540A
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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 the 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 about 3,300 ten thousand hectares of cultivated area accounts for 29% of cereal crops cultivated area.
Not weeding of field it is reported that annual national paddy rice all receives crop smothering in various degree, if can make the paddy rice underproduction more than 50%.Weeds have the paddy field main harm: barnyard grass 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.In order to reduce the economic loss that crop smothering causes, reduce labor intensity, 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, cultivate cost but also can reduce, reach the purpose of raising the output.
Cinosulfuron (Cinosulfuron) has another name called the first cinosulfuron, a kind of sulfonylurea herbicide, and 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 following:
Cinosulfuron mainly absorbs through root and stem, is sent to meristematic tissue by conducting tissue, suppresses the biosynthesis of branched-chain amino acid (like serine, isoleucine).Weeds can be not dead immediately after the medication, but stop growing, and plant begins yellow after 5-10 days, withered death.In the paddy rice body, active ingredient can be through urea bridge fracture, after methoxyl group hydrolysis, deamination and the phenyl ring hydrolysis with approach such as the sucrose yoke close; Be metabolized to non-poisonous material at last; The half life period was 3 days in the paddy rice leaf, so to rice safety less than 1 day half life period in rice root.But because its water-soluble big (3.7g/L water) in the water leaking paddy field, causes poisoning thereby may focus on the rice root district with water to paddy rice.Be used for that drought is broadcast, water broadcasts annual broadleaf weed and sedge weeds such as rice field control rhizoma alismatis, nutgrass flatsedge, pondweed, arrowhead, Monochoria vaginalis, and is invalid to barnyard grass grass and moleplant seed etc.
Cyhalofop-butyl (Cyhalofop-butyl), commodity are called a thousand pieces of gold, are the phenoxy carboxylic acid herbicidess of LG-DOW agricultural science company exploitation, chemical name: (R)-and 2-[4 (4-cyanic acid-2-fluorophenoxy) phenoxy group]-butyl propionate, its structural formula is following:
Cyhalofop-butyl is unique in the fragrant phenoxy propionic acid ester weed killer herbicide paddy rice to be had the kind of tight security, and is the same with such other kinds, also is the inner sucting conduction type weed killer herbicide.Cyhalofop-butyl is absorbed by the leaf sheath and the blade of plant corpus; The phloem conduction accumulates the meristem zone in plant corpus, suppresses 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 and destroys, and causes plant dead at last.It is slower to be absorbed into weeds death from cyhalofop-butyl, generally needs 1-3 week.The symptom of weeds after dispenser is following: the tender shoots atrophy of four leaf phases, working hard at last causes death.Grow rapidly that leaf then stops growing after a couple of days tri-leaf period, it is sallow how many limb edge occurs, and causes death.The Lao Ye of two leaf stage changes minimum, keeps green.Cyhalofop-butyl can be degraded to the diacid attitude to the acetyl-CoA carboxylase non-activity rapidly by paddy rice, thereby paddy rice is had the safety of height.Because of it is degraded rapidly in soil with in the typical paddy field water either, so to succession crop safety.Be mainly used in and prevent and kill off grassy weed.Cyhalofop-butyl is not only efficient to various barnyard grass grass (comprising above the average age for marriage barnyard grass 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 following:
Pendimethalin is a meristematic cell division inhibitor, mainly suppresses the meristematic cell division, does not influence the sprouting of weed seed, but in the suppressing weed seed germination process behind young shoot, stem and the root absorption medicament and work.Dicotyledon is a hypocotyl to the Pendimethalin absorption site, and monocotyledon is a young shoot to Pendimethalin, and its symptom of being injured is that young shoot and secondary root are suppressed, and finally causes death.Pendimethalin is mainly used in prevents and kill off annual gramineae and some annual broadleaf weed, like lady's-grass, eleusine indica, barnyard grass 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 behind cereal plants, corn and the rice growing, or shallow mixed soil is used before broad bean, cotton, peanut and big bean sprouts.But use before the vegetables Tanaka seedling or before transplanting, also can prevent and kill off the tobacco field weed.
Herbicide for paddy field is limit by crop safety at present; It is also limited to kill the grass spectrum; Use separately the agent of a kind of weed killer herbicide list can not control the generation of paddy field weed completely effectively, moreover some weed killer herbicide is because water-soluble big or the field lasting period is oversize, consumption is excessive or the inhomogeneous residual hazard that all causes easily this season crop or succession crop of dispenser.
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 provides this herbicide applications.
The mixed herbicide of a kind of cinosulfuron-containing, cyhalofop-butyl and Pendimethalin; This weed killer herbicide is main active ingredient with cinosulfuron, cyhalofop-butyl and Pendimethalin, and the mass ratio of cinosulfuron, cyhalofop-butyl and Pendimethalin is 0.1～80: 0.1～80: 0.1～80.The mass ratio of preferred cinosulfuron, cyhalofop-butyl and Pendimethalin is 1～70: 1～60: 1～60.
In the described mixed herbicide, cinosulfuron, cyhalofop-butyl and Pendimethalin three's gross mass percentage composition is 1～85%, and preferred gross mass percentage composition is 15～80%.
In the ternary built preparation of cinosulfuron of the present invention, cyhalofop-butyl and Pendimethalin; Except 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 the pesticidal preparations and be mixed with any one formulation that allows on the 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 used before the paddy field seedling or in the postemergence weed control, particularly in preventing and kill off paddy field, uses in various grassy weeds, sedge weed or the broad leaved weed to have remarkable result.
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 through three kinds of different approaches; Wherein three kinds of active ingredient pluses and minuses are complementary; Three kinds of composite reagents not only can reduce the consumption of single agent greatly; Be made into the mixture use according to specific 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 that to some broad leaved weed effectively, grassy weed is also had good effect, after the three mixes, action compensating, herbicidal spectrum is wideer, and before the seedling, Miao Houjun can use.So weed killer herbicide of the present invention has the double action in foliar treatment and feud, prolonged the lasting period of medicament.
3, delay the weeds resistance.Because weeds are prone to sulfonylurea herbicide is produced resistance; And contain the Pendimethalin of dinitroaniline and the cyhalofop-butyl of fragrant phenoxy propionic acid ester in the weed killer herbicide of the present invention; Make medicament can prevent weeds effectively except anti-sulfonylurea; In addition, reduce the pesticide resistance of weeds, prolonged 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 the paddy field, under the prerequisite that has improved drug effect, paddy rice and succession crop is all had safety.
Embodiment
Embodiment 1
Cinosulfuron 1%, cyhalofop-butyl 1%, Pendimethalin 13%; APES 4%, polyoxyethylene polyoxy third rare block compound 5%, xanthans 2%; Water to 100%, being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 15% suspending agent.
Embodiment 2
Cinosulfuron 4%, cyhalofop-butyl 60%, Pendimethalin 1%; NNO (sodium methylene bis-naphthalene sulfonate) 6%; Sodium lignin sulfonate 4%, APES 5%, white carbon 9%; Kaolin supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine 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 being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 75% water dispersible granules.
Embodiment 4
Cinosulfuron 5%, cyhalofop-butyl 15%, Pendimethalin 10%; Oxirane propylene oxide block copolymer 7%, sodium lignin sulfonate 1%, ethylene glycol 3%; Toluene 20%, water supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 30% aqueous emulsion.
Embodiment 5
Cinosulfuron 15%, cyhalofop-butyl 5, Pendimethalin 60%; Calcium dodecyl benzene sulfonate 6%, AEO 7%, white carbon 9%; Kaolin supplies 100%, and being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 80% wetting powder.
Embodiment 6
Cinosulfuron 10%, cyhalofop-butyl 20%, Pendimethalin 20%, calcium dodecyl benzene sulfonate 9%, APES 5%, xylol to 100%, being mixed with active ingredient gross mass percentage composition according to the formulation method of routine is 50% missible oil.
Embodiment 7
1), indoor active determination test
Utilize the preparation among the embodiment 1～4, measure its co-toxicity coefficient 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, in illumination box, cultivate, treat weeds 3～6 leaves during the phase, do the enterprising row spraying of composition spray in crawler type and handle.Handle in the greenhouse, back and continue to cultivate, each handles the preventive effect to weeds routine observation, and each weeds fresh weight after handling of weighing behind the 30d is pressed the method for nineteen sixty propositions such as Sun Yunpei, calculates its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient shows that greater than 100 three kinds of active principles have synergistic effect, and co-toxicity coefficient shows that less than 100 three kinds of active principles have antagonism.Measure the result shown in table 1 and table 2.
Table 1 cinosulfuron and Pendimethalin are to the indoor determination of activity result of difformed galingale herb
Table 2 Pendimethalin and cyhalofop-butyl are to the indoor determination of activity result of barnyard grass grass
Can find out that from last table the co-toxicity coefficient after active principle is composite explains that all greater than 100 the present invention has obvious synergistic effect.
2), field control effectiveness test
Supply the reagent agent:
Ternary built weed killer herbicide among among the 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).
Confession studies thing: paddy rice
The paddy rice seedling was 3～5 leaf phases, grew fine, and robust plant does not have other damage by disease and insect.
Prevent and kill off object:
Paddy field advantage weeds such as rhizoma alismatis, nutgrass flatsedge, apple, pondweed, arrowhead, difformed galingale herb, lady's-grass, green foxtail, barnyard grass grass, eleusine indica.
Test method:
According to the area of experimental plot, the accurate good various medicaments of weighing, and after converting the water dilution, utilize knapsack sprayer, and carrying out even spraying, shower nozzle is selected the special-purpose Fan spray head of weed killer herbicide for use.During spraying, note soup is evenly sprayed application in the experimental plot, accomplish not leak the phenomenon of spray, many sprays.
After the test respectively behind medicine 20d, 40d observe the weeds death condition, and the activity of weeding of more various medicaments, the result sees table 3 and table 4.In addition, also will behind medicine, observe the condition of production of crop in 1～15d, to investigate medicament whether crop had poisoning, the result sees table 5.
Table 3 field control effectiveness test result (20d behind the medicine)
Table 4 field control effectiveness test result (40d behind the medicine)
Can find out that from table 3 and table 4 the present invention has significant preventive effect to grassy weed, broad leaved weed and sedge weed, synergy property is remarkable, and the lasting period is long.
Table 5 medicament is to the security survey result of crop
Each is handled, and the rice is doing well in the sub-district, do not see any medicine spot, explains that various medicaments are to the equal safety of paddy rice.
Claims (8)
1. the mixed herbicide of a cinosulfuron-containing, cyhalofop-butyl and Pendimethalin; It is characterized in that described mixed herbicide is main active ingredient with cinosulfuron, cyhalofop-butyl and Pendimethalin, the mass ratio of cinosulfuron, cyhalofop-butyl and Pendimethalin is 0.1～80: 0.1～80: 0.1～80.
2. mixed herbicide according to claim 1, the mass ratio that it is characterized in that cinosulfuron, cyhalofop-butyl and Pendimethalin in this weed killer herbicide is 1～70: 1～60: 1～60.
3. according to the mixed herbicide described in claim 1 or 2, the gross mass percentage composition that it is characterized in that cinosulfuron in the described mixed herbicide, cyhalofop-butyl and Pendimethalin three is 1～85%.
4. according to the mixed herbicide described in the claim 3, the gross mass percentage composition that it is characterized in that cinosulfuron in the described mixed herbicide, cyhalofop-butyl and Pendimethalin three is 15～80%.
5. according to the mixed herbicide described in the claim 1, it is characterized in that it is that the auxiliary agent that allows on main active ingredient and the agricultural chemicals is mixed with any one formulation with cinosulfuron, cyhalofop-butyl and Pendimethalin.
6. according to the mixed herbicide described in the claim 5, it is characterized in that described formulation is suspending agent, wetting powder, water dispersible granules, missible oil or aqueous emulsion.
7. the described mixed herbicide of claim 1 is before the paddy field seedling or the application in the postemergence weed control.
8. the described mixed herbicide of claim 1 application in various grassy weeds, sedge weed or the 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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| CN2010105521558A CN102461540B (en) | 2010-11-19 | 2010-11-19 | Mixed herbicide containing cinosulfuron,cyhalofop-butyl and pendimethalin and application thereof |
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| CN102461540A true CN102461540A (en) | 2012-05-23 |
| CN102461540B CN102461540B (en) | 2013-11-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016115709A1 (en) * | 2015-01-22 | 2016-07-28 | Hicap Formulations (Hong Kong) Ltd. | A safe, one-shot rice herbicide composition and weed control method in rice fields |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19834629A1 (en) * | 1998-07-31 | 1998-12-03 | Novartis Ag | Broad-spectrum pre- or post=emergence herbicidal composition |
| CN1309533A (en) * | 1998-07-16 | 2001-08-22 | 阿温提斯作物科学有限公司 | Herbicide composition |
| CN101401569A (en) * | 2008-11-13 | 2009-04-08 | 长沙矿冶研究院 | Environment-friendly floating agrochemical preparation for paddy field and preparation method thereof |
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- 2010-11-19 CN CN2010105521558A patent/CN102461540B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1309533A (en) * | 1998-07-16 | 2001-08-22 | 阿温提斯作物科学有限公司 | Herbicide composition |
| DE19834629A1 (en) * | 1998-07-31 | 1998-12-03 | Novartis Ag | Broad-spectrum pre- or post=emergence herbicidal composition |
| CN101401569A (en) * | 2008-11-13 | 2009-04-08 | 长沙矿冶研究院 | Environment-friendly floating agrochemical preparation for paddy field and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016115709A1 (en) * | 2015-01-22 | 2016-07-28 | Hicap Formulations (Hong Kong) Ltd. | A safe, one-shot rice herbicide composition and weed control method in rice fields |
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