CN103039478A - Mixed herbicide containing cinosulfuron and cyhalofop-butyl and application thereof - Google Patents
Mixed herbicide containing cinosulfuron and cyhalofop-butyl and application thereof Download PDFInfo
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- CN103039478A CN103039478A CN2011103152483A CN201110315248A CN103039478A CN 103039478 A CN103039478 A CN 103039478A CN 2011103152483 A CN2011103152483 A CN 2011103152483A CN 201110315248 A CN201110315248 A CN 201110315248A CN 103039478 A CN103039478 A CN 103039478A
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Abstract
The invention belongs to the technical field of agricultural chemicals and discloses a mixed herbicide containing cinosulfuron and cyhalofop-butyl and an application thereof. The mixed herbicide takes the cinosulfuron and the cyhalofop-butyl as main active ingredients, the mass ratio of the cinosulfuron to the cyhalofop-butyl is (0.1-80):(0.1-80), and the content in percentage by weight of the cinosulfuron and the cyhalofop-butyl in the mixed herbicide is 1-85%. The mixed herbicide disclosed by the invention has significant effects in applications in post-emergence weeding of rice paddy fields, in particular to the applications in control of various grass family, sedge 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 cyhalofop-butyl.
Background technology
China is in the world rice cropping country with the longest history, 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 the Huma, Heilongjiang Province of China.But main growth district is south, Taiwan, and 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 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 that causes 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 the 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 mainly is the factors such as temperature, soil property, rice varieties and farming custom.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 volume increase.
Cinosulfuron (Cinosulfuron) has 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 and is sent to meristematic tissue by conducting tissue, suppresses the biosynthesis of branched-chain amino acid (such as 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 by urea bridge fracture, after methoxyl group hydrolysis, deamination and the phenyl ring hydrolysis and the sucrose yoke approach such as close, be metabolized at last non-poisonous material, 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 large (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.Broadcast annual broadleaf weed and the sedge weeds such as rice field control rhizoma alismatis, nutgrass flatsedge, apple, pondweed, arrowhead, Monochoria vaginalis for dry sowing, water, invalid to barnyard 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)-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 tight security in the aryloxyphenoxypropanoates class weed killer herbicide, and is the same with such other kinds, also is inner-adsorption conduction-type herbicide.Leaf sheath and blade by plant corpus absorb, and the phloem conduction accumulates the meristem zone in plant corpus, suppress acetyl-CoA carboxylase (ACCase), fatty acid is synthesized stop, the growth division of cell can not normally be carried out, film system etc. contains membrane structure and destroys, and causes at last plant dead.Be absorbed into the weeds Mortality Ratio from cyhalofop-butyl slower, generally need 1-3 week.The symptom of weeds after dispenser is as follows: 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 rapidly diacid attitude to the acetyl-CoA carboxylase non-activity by paddy rice, thereby paddy rice is had the safety of height.Because it is degraded rapidly in soil and in the typical paddy field water either, 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.
Herbicide for paddy field is limit by crop safety at present, the herbicide spectrum is also limited, be used alone the weed killer herbicide single dose and can not control completely effectively the generation of paddy field weed, moreover some weed killer herbicide is because water-soluble large or the field lasting period is oversize, consumption is excessive or the inhomogeneous residual hazard that all easily causes this season crop or succession crop of dispenser.Therefore, but selection herbicide spectrum of the present invention is different, being made into mixture after two kinds of suitable decrements of weed killer herbicide of the cinosulfuron of pluses and minuses complementation and cyhalofop-butyl uses, so both enlarged the herbicide spectrum, obviously improved herbicidal effect, also avoided this season is done the deposits yields poisoning and succession crop produced the possibility of residual hazard.
Summary of the invention
The mixed herbicide that the purpose of this invention is to provide a kind of cinosulfuron-containing and cyhalofop-butyl.
Another object of the present invention provides the application of this mixed herbicide in the paddy field postemergence weed control.
Purpose of the present invention can be achieved through the following technical solutions:
The mixed herbicide of a kind of cinosulfuron-containing and cyhalofop-butyl, this mixed herbicide is take cinosulfuron and cyhalofop-butyl as main active ingredient, and the mass ratio of cinosulfuron and cyhalofop-butyl is 0.1～80: 0.1～80.The mass ratio of preferred cinosulfuron and cyhalofop-butyl is 1～70: 1～60.The mass ratio of cinosulfuron and cyhalofop-butyl more preferably 1～40: 1～40.
In above-mentioned mixed herbicide, the two quality percentage composition in this mixed herbicide of cinosulfuron and cyhalofop-butyl is 1～85%, and the preferred mass percentage composition is 15～80%.
In the binary built preparation of cinosulfuron of the present invention and cyhalofop-butyl, except the active ingredients such as cinosulfuron and cyhalofop-butyl, 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 missible oil, aqueous emulsion, water dispersible granules, wetting powder.
Mixed herbicide of the present invention can be used in the paddy field postemergence weed control, particularly uses in various grass family, sedge family and the broad leaved weed to have remarkable result in preventing and kill off paddy field.
Beneficial effect of the present invention:
1, activity of weeding is high.Cinosulfuron mainly absorbs by root and stem and is sent to meristematic tissue by conducting tissue, suppresses the biosynthesis of branched-chain amino acid (such as serine, isoleucine).Cyhalofop-butyl is inner-adsorption conduction-type herbicide, leaf sheath and blade by plant corpus absorb, the phloem conduction, accumulate the meristem zone in plant corpus, suppress acetyl-CoA carboxylase (ACCase), fatty acid is synthesized stop, the growth division of cell can not normally be carried out, film system etc. contains membrane structure and destroys, and causes at last plant dead.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 is mainly effective to broad leaved weed and sedge weed, and the cyhalofop-butyl ester is effective to grassy weed, and both mix rear action compensating, and herbicidal spectrum is wider, and because cinosulfuron can spread pesticide-clay mixture or spraying; And cyhalofop-butyl can be done the cauline leaf processing.So weed killer herbicide of the present invention has the double action in leaf surface treatment and feud, prolonged the lasting period of medicament.
3, delay Weed Resistance.Because weeds easily produce resistance to sulfonylurea herbicide, and contain the cyhalofop-butyl of aryloxyphenoxypropanoates class in the weed killer herbicide of the present invention, make medicament can effectively prevent weeds except anti-sulfonylurea, in addition, reduce resistance weed, 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.
Therefore, mixed herbicide of the present invention can be used in agent for removing grass in paddy field, particularly uses in various grass family, sedge family and the broad leaved weed in preventing and kill off paddy field.
Embodiment
Embodiment 1
Cinosulfuron 1%, cyhalofop-butyl 14%, alkyl pyrrolidone 6%, ethylene oxide-propylene oxide block copolymer 5%, gum Arabic 9%, isobutanol 2%, glycerine 4% adds water to 100%, and the quality percentage composition that is mixed with active ingredient according to the formulation method of routine is 15% aqueous emulsion.
Embodiment 2
Cinosulfuron 15%, cyhalofop-butyl 5%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5% adds diatomite and supplies 100%, and the quality percentage composition that is mixed with active ingredient according to the formulation method of routine is 20% water dispersible granules.
Embodiment 3
Cinosulfuron 10%, cyhalofop-butyl 60%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5% adds diatomite and supplies 100%, and the quality percentage composition that is mixed with active ingredient according to the formulation method of routine is 70% water dispersible granules.
Embodiment 4
Cinosulfuron 70%, cyhalofop-butyl 10%, NNO (sodium methylene bis-naphthalene sulfonate) 5%, sodium lignin sulfonate 4%, white carbon 6% adds kaolin and supplies 100%, and the quality percentage composition that is mixed with active ingredient according to the formulation method of routine is 80% wetting powder.
Embodiment 5
Cinosulfuron 24%, cyhalofop-butyl 1%, NNO (sodium methylene bis-naphthalene sulfonate) 6%, sodium lignin sulfonate 5%, white carbon 9% adds kaolin and supplies 100%, and the quality percentage composition that is mixed with active ingredient according to the formulation method of routine is 25% wetting powder.
Embodiment 6
Cinosulfuron 5%, cyhalofop-butyl 10%, ethylene glycol 5%, cyclohexanone 8%, polyoxyethylene groups alkyl ether 5% adds vegetable oil to 100%, and the quality percentage composition that is mixed with active ingredient according to the formulation method of routine is 15% missible oil.
Embodiment 7
Cinosulfuron 40%, cyhalofop-butyl 1%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5% adds diatomite and supplies 100%, and the quality percentage composition that is mixed with active ingredient according to the formulation method of routine is 41% water dispersible granules.
Embodiment 8
Cinosulfuron 1%, cyhalofop-butyl 40%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5% adds diatomite and supplies 100%, and the quality percentage composition that is mixed with active ingredient according to the formulation method of routine is 41% water dispersible granules.
Embodiment 9
Cinosulfuron 40%, cyhalofop-butyl 40%, sodium lignin sulfonate 6%, neopelex 4%, ammonium sulfate 4% adds diatomite and supplies 100%, and the quality percentage composition that is mixed with active ingredient according to the formulation method of routine is 80% water dispersible granules.
Embodiment 10
Cinosulfuron 80%, cyhalofop-butyl 0.1%, sodium lignin sulfonate 6%, neopelex 4%, ammonium sulfate 4% adds diatomite and supplies 100%, and the quality percentage composition that is mixed with active ingredient according to the formulation method of routine is 80.1% water dispersible granules.
Embodiment 11
Cinosulfuron 0.1%, cyhalofop-butyl 80%, NNO (sodium methylene bis-naphthalene sulfonate) 5%, sodium lignin sulfonate 4%, white carbon 6% adds kaolin and supplies 100%, and the quality percentage composition that is mixed with active ingredient according to the formulation method of routine is 80.1% wetting powder.
Embodiment 12
Cinosulfuron 70%, cyhalofop-butyl 1%, NNO (sodium methylene bis-naphthalene sulfonate) 6%, sodium lignin sulfonate 5%, white carbon 4% adds kaolin and supplies 100%, and the quality percentage composition that is mixed with active ingredient according to the formulation method of routine is 71% wetting powder.
Embodiment 13
Cinosulfuron 1%, cyhalofop-butyl 60%, ethylene glycol 5%, cyclohexanone 8%, polyoxyethylene groups alkyl ether 5%, vegetable oil to 100%, the quality percentage composition that is mixed with active ingredient according to the formulation method of routine are 61% missible oil.
Embodiment 14
Cinosulfuron 15%, cyhalofop-butyl 35%, ethylene glycol 5%, cyclohexanone 8%, polyoxyethylene groups alkyl ether 5%, vegetable oil to 100%, the quality percentage composition that is mixed with active ingredient according to the formulation method of routine are 50% missible oil.
Embodiment 15
1, field control effectiveness test
4 kinds of re-compounded binary herbicides among reagent agent: the embodiment 1,2,3,4.
Contrast medicament: 20% cinosulfuron water dispersible granules (commercially available), 10% cyhalofop-butyl microemulsion (commercially available).
For studying thing: paddy rice, rice seedlings were 3～5 leaf phases, grew fine, and robust plant is 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, Ya Zhi grass.
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 the experimental plot phenomenon of accomplishing there is not drain spray, spraying more.
After the test respectively behind medicine 20d, 40d observe the weeds death condition, and the activity of weeding of more various medicaments.In addition, also to behind medicine, observe the condition of production of crop in 1～15d, to investigate medicament whether crop be had poisoning.
Embodiments of the invention preparation weeding test effect see the following form 1 (20d behind the medicine) and table 2 (40d behind the medicine)
Table 1 field control effectiveness test result (20d behind the medicine)
Table 2 field control effectiveness test result (40d behind the medicine)
Can find out from table 1 and table 2, the present invention has significant preventive effect to grassy weed, sedge weed and broad leaved weed, and synergy is remarkable, and the lasting period is long.
Table 3 medicament is to the security survey result of crop
Each is processed, and the rice is doing well in the residential quarter, has no any medicine spot, illustrates that various medicaments are to the equal safety of paddy rice.
Claims (9)
1. the mixed herbicide of a cinosulfuron-containing and cyhalofop-butyl is characterized in that this mixed herbicide take cinosulfuron and cyhalofop-butyl as main active ingredient, and the mass ratio of cinosulfuron and cyhalofop-butyl is 0.1～80: 0.1～80.
2. mixed herbicide according to claim 1 is characterized in that the mass ratio of cinosulfuron and cyhalofop-butyl is 1～70: 1～60 in this mixed herbicide.
3. mixed herbicide according to claim 2 is characterized in that the mass ratio of cinosulfuron and cyhalofop-butyl is 1～40: 1～40 in this mixed herbicide.
4. mixed herbicide according to claim 1 is characterized in that the two quality percentage composition in this mixed herbicide of cinosulfuron and cyhalofop-butyl is 1～85%.
5. mixed herbicide according to claim 4 is characterized in that the two quality percentage composition in this mixed herbicide of cinosulfuron and cyhalofop-butyl is 15～80%.
6. mixed herbicide according to claim 1 is characterized in that the auxiliary agent that allows on this mixed herbicide is take cinosulfuron and cyhalofop-butyl as main active ingredient and pesticidal preparations is mixed with any one formulation.
7. mixed herbicide according to claim 6 is characterized in that described formulation is missible oil, aqueous emulsion, water dispersible granules or wetting powder.
8. the application of mixed herbicide claimed in claim 1 in the paddy field postemergence weed control.
9. mixed herbicide claimed in claim 1 application in various grass family, sedge family and 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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| CN2011103152483A CN103039478A (en) | 2011-10-17 | 2011-10-17 | Mixed herbicide containing cinosulfuron and cyhalofop-butyl and application thereof |
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| CN2011103152483A CN103039478A (en) | 2011-10-17 | 2011-10-17 | Mixed herbicide containing cinosulfuron and cyhalofop-butyl and application thereof |
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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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19834627A1 (en) * | 1998-07-31 | 1998-12-03 | Novartis Ag | Broad-spectrum pre- or post=emergence herbicidal composition |
| CN101530104A (en) * | 2009-04-21 | 2009-09-16 | 北京颖泰嘉和科技股份有限公司 | Herbicide composition containing sulfonylurea, pyridine and cyhalofop-butyl and use thereof |
| CN101911948A (en) * | 2010-08-20 | 2010-12-15 | 陕西上格之路生物科学有限公司 | Cinosulfuron-containing herbicide composition |
| CN101999389A (en) * | 2010-12-07 | 2011-04-06 | 陕西韦尔奇作物保护有限公司 | Cyhalofop-butyl and sulfonylurea herbicide-containing herbicide composition |
-
2011
- 2011-10-17 CN CN2011103152483A patent/CN103039478A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19834627A1 (en) * | 1998-07-31 | 1998-12-03 | Novartis Ag | Broad-spectrum pre- or post=emergence herbicidal composition |
| CN101530104A (en) * | 2009-04-21 | 2009-09-16 | 北京颖泰嘉和科技股份有限公司 | Herbicide composition containing sulfonylurea, pyridine and cyhalofop-butyl and use thereof |
| CN101911948A (en) * | 2010-08-20 | 2010-12-15 | 陕西上格之路生物科学有限公司 | Cinosulfuron-containing herbicide composition |
| CN101999389A (en) * | 2010-12-07 | 2011-04-06 | 陕西韦尔奇作物保护有限公司 | Cyhalofop-butyl and sulfonylurea herbicide-containing herbicide composition |
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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Application publication date: 20130417 |