CN101326912B - Herbicidal composition and use thereof - Google Patents
Herbicidal composition and use thereof Download PDFInfo
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- CN101326912B CN101326912B CN2007101785752A CN200710178575A CN101326912B CN 101326912 B CN101326912 B CN 101326912B CN 2007101785752 A CN2007101785752 A CN 2007101785752A CN 200710178575 A CN200710178575 A CN 200710178575A CN 101326912 B CN101326912 B CN 101326912B
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- salt
- ester
- herbicidal composition
- clopyralid
- picloram
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- 0 *c(cc(cc1)N=O)c1OC(C(C1CC2CC1)=O)=C2Nc1ccccc1 Chemical compound *c(cc(cc1)N=O)c1OC(C(C1CC2CC1)=O)=C2Nc1ccccc1 0.000 description 1
- NQQVFXUMIDALNH-UHFFFAOYSA-N Nc(c(Cl)c(nc1C(O)=O)Cl)c1Cl Chemical compound Nc(c(Cl)c(nc1C(O)=O)Cl)c1Cl NQQVFXUMIDALNH-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides a herbicide combination, containing the effective constituents of picloram or picloram ester, clopyralid or clopyralid ester and as well as one or more varieties of triketone; the weight ratio of the three constituents is 0.1:1:20-20:1:0.1. The combination contains at least one surfactant. The combination can be used to prepare emulsifiable solution, liquor, thick emulsion, microemulsion, wettable powder, water suspending agent, oil suspending agent, water-dispersible granules, soluble powder or granules, and is used to prevent and control Gramineae and broad-leaved weeds which have grown for one year or more than one year in the corn field.
Description
Technical field
The invention belongs to the agricultural herbicide field, more particularly, relate to a kind of herbicidal composition and application thereof that contains picloram or its salt or its ester, clopyralid or its salt or its ester and three ketones.
Background technology
Picloram is mainly used in broad leaved weed and shrub in the control coniferous tree young growth area by the exploitation of LG-DOW company.It is a kind of systemic herbicide, can be rapidly by leaf and root absorption, and in plant corpus, conduct.Act on metabolism of nucleic acid, make plant produce excess nucleic acid, make some structural transformations become meristematic tissue, cause blade, stem and root growth deformity, reserve substance exhausts, and vascular bundle tissue is by embolism or break, and plant is death gradually.
Clopyralid is a kind of interior absorption post-emergence herbicide, prevents and kill off composite family, pulse family, Solanaceae and Umbelliferae weeds effectively.It is selective in gramineous crop, comprises in Brassic beet and other beet crops, flax, strawberry and the allium crop also selective at multiple broad leaf crop.(not interplanting) is with 50～80g a.e/ha and other herbicide mixtures in cereal; Consumption is 70～100g a.e/ha in non-gramineous crop, can with other herbicide mixtures, prevent and kill off annual weed, as Matricaria, or singly execute this agent 100～200g a.e/ha, prevent and kill off perennial weed, as creeping thistle.Energy metabolism not in plant.
The three ketones weed killer herbicide be after the pyrazoles weed killer herbicide by the another kind of HPPD inhibitor of the sharp Kanggong of victory department exploitation, existing at present 3 variety developments success, they are sulphur humulone, mesotrione and benzobicylon.The sulphur humulone is a corn field herbicide, can prevent and kill off multiple broad leaved weed and grassy weed effectively.Mesotrione is mainly used in prevents and kill off corn field weed such as Siberian cocklebur etc., and the weeds that sulfonylurea herbicide produced resistance are effective.Benzobicylon is the new varieties by the exploitation of SDS biotech company.The great advantage of three ketones weed killer herbicide is: 1. the stable storage of the aqueous solution is strong, not volatile and photodissociation; 2. the physical compatibility with other weed killer herbicide is good, is beneficial to the exploitation mix preparation; 3. the faintly acid weed killer herbicide is convenient to plant absorbing.
But the independent Use Limitation fruit of above-mentioned three kinds of weed killer herbicides is all desirable not to the utmost.
Summary of the invention
The object of the present invention is to provide a kind of herbicidal composition that contains picloram or its salt or its ester, clopyralid or its salt or its ester and three ketones.
Another object of the present invention is to provide the preparation method of described herbicidal composition
A further object of the present invention is to provide described herbicidal composition in the application that is used for annual and perennial grass family in control of maize field and broad leaved weed.
Herbicidal composition of the present invention, contain picloram or its salt or its ester, clopyralid or its salt or its ester and one or more three ketones weed killer herbicides, the weight part ratio of three class components is 0.1: 1: 20～20: 1: 0.1, and preferred weight part ratio is 0.3: 1: 7～7: 1: 0.3.
Wherein said picloram is a 4-amino-3,5,6-trichloropyridine-2-carboxylic acid, its organic salt is selected from ethanolamine salt, triisopropanolamine salt, triethylamine salt, dimethylamine salt, isopropyl amine salt, its mineral salt are sylvite, sodium salt, ammonium salt, lithium salts, and its ester is methyl esters, ethyl ester, propyl ester, butyl ester, monooctyl ester, different monooctyl ester;
Described clopyralid is 3,6-dichloropyridine-2-carboxylic acid, its organic salt is selected from ethanolamine salt, triisopropanolamine salt, triethylamine salt, dimethylamine salt, isopropyl amine salt, and its mineral salt are sylvite, sodium salt, ammonium salt, lithium salts, and its ester is methyl esters, ethyl ester, propyl ester, butyl ester, monooctyl ester, different monooctyl ester;
Three ketones is selected from 3-(2-chloro-4-methyl sulphonyl benzoyl)-2-thiophenyl dicyclo [3.2.1] oct-2-ene-4-ketone (benzobicylon); 2-(4-mesyl-2-nitro-benzoyl) cyclohexane-1; 3-diketone (mesotrione); or 2-(2-chloro-4-mesyl benzoyl) cyclohexane-1,3-diketone (sulphur humulone).
The structural formula of part component of the present invention is as shown in hereinafter.Picloram chemical name wherein: 4-amino-3,5,6-trichloropyridine-2-carboxylic acid,
Structural formula:
Molecular formula: C
6H
3Cl
3N
2O
2
Relative molecular weight: 241.5.
The clopyralid chemical name: 3,6-dichloropyridine-2-carboxylic acid
Structural formula:
Molecular formula: C
6H
3Cl
2NO
2
Relative molecular weight: 192.
Three ketones class weed killer herbicide is:
Benzobicylon (benzobicylon)
Molecular formula: C
22H
19ClO
48
2
Relative molecular mass: 446.96
Mesotrione (mesotrione)
Molecular formula: C
14H
13NO
7S
Relative molecular mass: 339.31
Sulphur humulone (sulcotrione)
Molecular formula: C
14H
13ClO
5S
2
Relative molecular mass: 328.8.
Active component is 0.1～95.0% of a gross weight in the herbicidal composition of the present invention.
The amount of active component depends on the amount of application when every kind of component is used separately in the herbicidal composition of the present invention, also depends on a kind of component and the ratio of other two kinds of components and the degree of synergistic effect.
At least contain a kind of surfactant in the herbicidal composition of the present invention, can use lauryl sodium sulfate, Teepol, neopelex, sodium lignin sulfonate, polyoxyethylene fatty acid fat, polyoxyethylene aliphatic alcohol ether, polyoxyethylene fatty amine, ethoxy castor oil, fatty acid polyethylene glycol ester, alkylphenol polyoxyethylene, fatty alcohol-polyoxyethylene ether or this area surfactant commonly used.
The present composition can be mixed with missible oil, liquor, aqua, emulsifiable concentrate, microemulsion, wetting powder, aqueous suspension agent, oil-suspending agent, water dispersion granule or soluble powder/granula etc., and these preparations can be prepared by this area method in common.
Herbicidal composition of the present invention can the finished product form provide, and promptly each material mixes in the composition; Also dosage form provides separately, directly mixes in bucket or jar before using.Concentrate of the present invention mixes the concentration that obtains required active substance usually with water.
Composition of the present invention can be used for annual and perennial various grass family in control of maize field and broad leaved weed etc.The place of using of herbicidal composition of the present invention is the nonirrigated farmland.
Composition of the present invention can with other compound with weeding, desinsection or bactericidal property particularly the weed killer herbicide handled of cauline leaf mix use, can also mix use with nematocide, protective agent, growth regulator, nutrient for plants or soil conditioner.
The present invention also provides a kind of method of weeding, before weed germination or after sprouting, uses composition of the present invention to the place of crop and plant growth.Can use by common method, as mix soil, spraying, injection, cast etc.Amount of application of the present invention is with weather condition or crop state variation.Herbicidal effect is usually relevant with the content of individualized compound in the composition, also relevant with extraneous factor, weather for example, but by using suitable formulation can slow down climatic influences.
This three classes medicament of picloram or its salt or its ester, clopyralid or its salt or its ester and three ketones weed killer herbicide possesses different structure types and different mechanism of action, the three is composite to have very obvious synergistic effect, can be at the preventive effect that improves to a greater extent the corn field malignant weed, and can enlarge and kill the grass spectrum.
Herbicidal combinations of the present invention has the following advantages: the one, and composition shows fabulous synergistic effect in certain ratio range, mixed composition has obviously improved herbicidal effect than its single agent, thereby reduced using dosage, when reducing peasant's drug cost, reduced influence degree.The 2nd, enlarged and killed the grass spectrum, a kind of medicament can be prevented and treated multiple weeds simultaneously, and a kind of means of prevention extremely easily and effectively is provided, and the grass family and the broad leaved weed of corn field all had good control efficiency.The 3rd, said composition is systemic herbicide and the combination of tagging property mixture of herbicides, and the different action characteristics of medicament obtain extremely strong mutual supplement with each other's advantages, and the resistance that can effectively delay single agent takes place and development.
Embodiment
The present invention is elaborated with following specific embodiment, so that advantage of the present invention is more obvious, but the present invention is limited to these examples absolutely not.Percentage all is weight percentage in the proportioning of all preparations; The treatment dosage of biologically-active moiety is active ingredient.
1, the preparation of wetting powder
By the prescription requirement, former medicine, various auxiliary agent and filler etc. are fully mixed, after ultrafine crusher is pulverized, promptly obtain converted products.As embodiment 1～5 prescription.
Embodiment 1 (21.1% wetting powder)
Picloram 0.1%, clopyralid 1%, benzobicylon 20%, neopelex 2.0%, white carbon black 5%, sodium lignin sulfonate 10%, diatomite complements to 100%.
Embodiment 2 (30% wetting powder)
Picloram triethanolamine salt 10%, mesotrione 10%, sulphur humulone 10%, lauryl sodium sulfate 1.5%, white carbon black 10%, sodium lignin sulfonate 10%, kaolin complements to 100%.
Embodiment 3 (95% wetting powder)
Picloram 5%, dichloropyridine acid sodium-salt 15%, sulphur humulone 75%, alkyl amide taurate 1%, Fluhyzon formaldehyde condensation 1%, neopelex 3%.
2, the preparation of aqueous emulsion
Former medicine, solvent, emulsifier added with co-emulsifier be in the same place, make and be dissolved into even oil phase.Water, antifreeze etc. is mixed, becomes the homogeneous water.Under high-speed stirred, water is joined oil phase or oil phase is joined water, form the aqueous emulsion of favorable dispersibility.As embodiment 6～1 0 prescriptions.
Embodiment 4 (21.1% aqueous emulsion)
Picloram 20%, clopyralid 1%, sulphur humulone 0.1%, N-Methyl pyrrolidone 5%, polyvinyl alcohol 0.8%, sorbitan fatty acid ester polyoxyethylene groups ether 5%, alkyl-diethylene glycol ether-sodium sulfonate 2.5%, farming breast 2,201 2%, ethylene glycol 5%, water complements to 100%.
Embodiment 5 (15% aqueous emulsion)
Picloram 2%, dichloropyridine acetoacetic ester 7%, benzobicylon 6%, solvent naphtha 15%, polyethylene glycol 5%, alkylaryl polyoxyethylene poly-oxygen propylene aether 3.5%, farming breast 2,201 5%, dimethyl formamide 12%, ethylene glycol 5%, water complements to 100%.
Embodiment 6 (30% aqueous emulsion)
Picloram isobutyl ester 2.5%, clopyralid 3.5%, mesotrione 10%, benzobicylon 5%, mesotrione 9%, PMA 3%, sorbitan fatty acid ester polyoxyethylene groups ether 10%, alkyl-diethylene glycol ether-sodium sulfonate 3.5%, farming breast 22012%, dimethyl formamide 20%, ethylene glycol 5%, water complements to 100%.
3, the preparation of water-dispersible granules
Former medicine and powder carrier, wetting spreader-sticker and binding agent etc. are mixed pulverizing, and spray-dried or fluidized drying adds in the comminutor that the certain specification screen cloth is housed and carries out granulation after obtaining water-dispersible granules or add water again mediating.And then drying, screening (pressing the screen cloth scope) promptly get granular product.As embodiment 11～14 prescriptions.
Embodiment 7 (21.1% water-dispersible granules)
Picloram sodium salt 1%, clopyralid 0.1%, benzobicylon 20%, sodium methylene bis-naphthalene sulfonate formaldehyde condensation products 12%, citric acid 5%, soluble starch 15%, gypsum complements to 100%.
Embodiment 8 (50% water-dispersible granules)
Clopyralid 15%, mesotrione 25%, sulphur humulone 10%, sodium lignin sulfonate 12%, epoxidized polyether 5%, sodium sulphate 15%, gypsum complements to 100%.
Embodiment 9 (80% water-dispersible granules)
Picloram 10%, dichloropyridine acid potassium salt 25%, sulphur humulone 45%, calcium lignosulfonate 15%, epoxidized polyether 5%, soluble starch 15%, polyvinylpyrrolidone 5%, attapulgite complements to 100%.
4, the preparation of suspending agent
By the prescription requirement, be medium with water, former medicine, dispersant, suspending agent and antifreezing agent etc. are added in the sand milling still, carry out porphyrize, make suspending agent.As embodiment 1 5～17 prescriptions.
Embodiment 10 (24% suspending agent)
Picloram 1.0%, clopyralid 3.0%, mesotrione 10%, sulphur humulone 10%, calcium lignosulfonate 5%, white carbon black 0.3%, ethylene glycol 4%, silicone a little, water complements to 100%.
Embodiment 11 (30% suspending agent)
Picloram 2%, clopyralid 6%, sulphur humulone 8%, benzobicylon 14%, sodium methylene bis-naphthalene sulfonate formaldehyde condensation products 5%, white carbon black 1%, sorbitan fatty acid ester polyoxyethylene groups ether 5%, ethylene glycol 4%, tributyl phosphate a little, water complements to 100%.
Embodiment 12 (45% suspending agent)
Picloram 10%, clopyralid 10%, benzobicylon 15%, mesotrione 10%, sodium lignin sulfonate 5%, white carbon black 0.3%, farming breast 2,201 5%, glycerine 8%, silicone a little, water complements to 100%.
5, the preparation of oil-suspending agent
By the prescription requirement, be medium with oil, former medicine, dispersant, suspending agent and antifreezing agent etc. are added in the sand milling still, carry out porphyrize, make suspending agent.As embodiment 1 8～23 prescriptions.Embodiment 13 (21.1% oil-suspending agent)
Picloram 20%, clopyralid 0.1%, sulphur humulone 1%, fatty alcohol-polyoxyethylene ether 10%, polyoxyethylene nonylphenol ether (7) 5%, plant oil subsidy to 100%.
Embodiment 14 (14% oil-suspending agent)
The different monooctyl ester 2% of picloram, clopyralid 4%, mesotrione 8%,, fatty alcohol-polyoxyethylene ether 10%, polyoxyethylene nonylphenol ether (7) 5%, plant oil subsidy to 100%.
Embodiment 15 (20% oil-suspending agent)
Picloram 1%, dichloropyridine propyl propionate 3%, benzobicylon 10%, sulphur humulone 6%, aliphatic acid polyethenoxy ether 10%, castor oil polyoxyethylene ether (20) 5%, alkylphenol polyoxyethylene 5%, plant oil subsidy to 100%.
Embodiment 16 (35% oil-suspending agent)
Picloram 2%, clopyralid 5.5%, mesotrione 27.5%, fatty alcohol-polyoxyethylene ether 10%, polyoxyethylene nonylphenol ether (7) 5%, machine oil is mended to 100%.
6, the preparation of missible oil
Former medicine, solvent, emulsifier are added together, make and be dissolved into even oil phase.。As embodiment 24～30 prescriptions.
Embodiment 17 (0.1% missible oil)
Picloram butyl ester 0.01%, clopyralid methyl esters 0.02%, mesotrione 0.07%, N-Methyl pyrrolidone 5%, fatty alcohol-polyoxyethylene ether 5%, glyceryl monolaurate APEO 10%, fast penetration enhancer T10%, plant oil subsidy to 100%.
Embodiment 18 (5% missible oil)
Picloram 0.8%, clopyralid 0.3%, benzobicylon 3.9%, cyclohexanone 20%, aliphatic acid polyethenoxy ether 5%, trilaurin APEO 10%, JFC 10%,
Toluene is mended to 100%.
Embodiment 19 (10% missible oil)
Picloram 2%, clopyralid 2%, sulphur humulone 6%, N, dinethylformamide 10%, fatty alcohol-polyoxyethylene ether 10%, glyceryl monolaurate APEO 10%, fast penetration enhancer T10%, solvent oil subsidy to 100%.
Embodiment 20 (40% missible oil)
Picloram 3%, clopyralid 12%, mesotrione 25%, N-Methyl pyrrolidone 30%, castor oil polyoxyethylene alcohol 10%, glyceryl monolaurate APEO 5%, solvent oil subsidy to 100%.
Embodiment 21 (50% missible oil)
Picloram 10%, clopyralid 15%, mesotrione 25%, methyl alcohol 20%, monoethanolamine 10%, aliphatic amine polyoxyethylene ether 5%, glycerine bilaurate APEO 4%, alkylphenol polyoxyethylene phosphate 5%, N-Methyl pyrrolidone is mended to 100%.
5, composition is at the herbicidal effect in greenhouse
In the greenhouse, adopt potted plant method measure the preparation of composition and picloram, clopyralid, to the preventive effect of grass family and broad leaved weed.
Test method: the greenhouse pot culture method is adopted in test, the quantitative weed seed of sowing in Disposable paper cup, treat that the unearthed back of weeds 1.5～2 leaves carry out thinning during the phase, each dixie cup is cultivated by the more consistent weeds plant of 5 strain growing ways of selecting and remain, and regularly water the aqueous solution of N, P, K composite fertilizer, treat that grassy weed grows to 3～4 leaf phases, broad leaved weed 4～6 leaves and carries out cauline leaf spraying processing with crawler type crop sprayer during the phase, handle and be placed on greenhouse continuation cultivation observation, the herbicidal effect of each processing of " Invest, Then Investigate " in 20 days after back 6 hours.The result is as shown in table 1.
The preventive effect contrast and experiment of table 1 pair grass family and broad leaved weed
| Medicament | Dosage g (a.i.)/ha | Weeds preventive effect (%) | |||
| The barnyard grass grass | Golden green foxtail | The root of Beijing euphorbia | Commelina communis | ||
| Picloram | 60 | 55 | 60 | 80 | 80 |
| Clopyralid | 150 | 50 | 55 | 80 | 85 |
| Benzobicylon | 300 | 90 | 85 | 55 | 65 |
| The sulphur humulone | 300 | 90 | 95 | 45 | 55 |
| Mesotrione | 150 | 85 | 90 | 20 | 25 |
| Embodiment 1 | 150 | 100 | 100 | 100 | 95 |
| Embodiment 2 | 75 | 95 | 100 | 100 | 100 |
| Embodiment 3 | 150 | 95 | 95 | 100 | 100 |
| Embodiment 4 | 150 | 85 | 95 | 100 | 100 |
| Embodiment 5 | 150 | 100 | 95 | 95 | 100 |
| Embodiment 6 | 75 | 95 | 100 | 100 | 100 |
| Embodiment 7 | 100 | 95 | 95 | 95 | 100 |
| Embodiment 8 | 50 | 95 | 95 | 100 | 100 |
| Embodiment 9 | 75 | 95 | 95 | 95 | 100 |
| Embodiment 10 | 100 | 95 | 100 | 100 | 100 |
| Embodiment 11 | 75 | 95 | 90 | 95 | 100 |
| Embodiment 12 | 75 | 90 | 90 | 100 | 100 |
| Embodiment 13 | 200 | 85 | 100 | 100 | 100 |
| Embodiment 14 | 150 | 90 | 90 | 100 | 95 |
| Embodiment 15 | 100 | 90 | 95 | 95 | 90 |
| Embodiment 16 | 75 | 95 | 95 | 100 | 100 |
| Embodiment 17 | 200 | 95 | 95 | 100 | 100 |
| Embodiment 18 | 300 | 95 | 95 | 100 | 95 |
| Embodiment 19 | 200 | 100 | 100 | 100 | 100 |
| Embodiment 20 | 50 | 100 | 95 | 100 | 100 |
| Embodiment 21 | 50 | 95 | 95 | 100 | 100 |
Conclusion: table 1 test of pesticide effectiveness is the result show, after picloram and clopyralid and three ketones are used with more single with compare weeds particularly the preventive effect of grassy weed barnyard grass grass, golden green foxtail be significantly improved, broad leaved weed also there is obvious synergistic effect, reaches the purpose of preventing and treating grassy weed and broad leaved weed simultaneously.
Though above the present invention is described in detail with a general description of the specific embodiments, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements all belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Claims (8)
1. a herbicidal composition is characterized in that, said composition contains active ingredient picloram or its salt or its ester, clopyralid or its salt or its ester and one or more three ketones, three class components weight ratio be 0.1: 1: 20～20: 1: 0.1; Described three ketones is selected from: 3-(2-chloro-4-methyl sulphonyl benzoyl)-2-thiophenyl dicyclo [3.2.1] oct-2-ene-4-ketone; 2-(4-mesyl-2-nitro-benzoyl) cyclohexane-1; 3-diketone or 2-(2-chloro-4-mesyl benzoyl) cyclohexane-1; 3-diketone, described ester are methyl esters, ethyl ester, propyl ester, butyl ester, monooctyl ester, different monooctyl ester.
2. herbicidal composition as claimed in claim 1 is characterized in that, the weight ratio of each component is 0.3: 1: 7～7: 1: 0.3.
3. herbicidal composition as claimed in claim 1 or 2, it is characterized in that, described picloram is a 4-amino-3,5,6-trichloropyridine-2-carboxylic acid, its organic salt is selected from ethanolamine salt, triisopropanolamine salt, triethylamine salt, dimethylamine salt, isopropyl amine salt, and its mineral salt are sylvite, sodium salt, ammonium salt, lithium salts.
4. herbicidal composition as claimed in claim 3, it is characterized in that described clopyralid is 3,6-dichloropyridine-2-carboxylic acid, its organic salt is selected from ethanolamine salt, triisopropanolamine salt, triethylamine salt, dimethylamine salt, isopropyl amine salt, and its mineral salt are sylvite, sodium salt, ammonium salt, lithium salts.
5. herbicidal composition as claimed in claim 1 or 2, it is characterized in that, described clopyralid is 3,6-dichloropyridine-2-carboxylic acid, its organic salt is selected from ethanolamine salt, triisopropanolamine salt, triethylamine salt, dimethylamine salt, isopropyl amine salt, and its mineral salt are sylvite, sodium salt, ammonium salt, lithium salts.
6. herbicidal composition as claimed in claim 1 or 2 is characterized in that, the weight percentage of active ingredient is 0.1～95.0%.
7. herbicidal composition as claimed in claim 1 or 2 is characterized in that, said composition is mixed with missible oil, aqua, emulsifiable concentrate, microemulsion, wetting powder, aqueous suspension agent, oil-suspending agent, water dispersion granule, soluble powder or granula.
8. any described herbicidal composition of claim 1～7 is in the application that is used for annual and perennial grass family in control of maize field and broad leaved weed.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| AU2013200964B2 (en) * | 2010-03-22 | 2015-08-27 | Corteva Agriscience Llc | High-strength, low viscosity herbicidal concentrate of clopyralid dimethylamin |
| CA2770359C (en) * | 2010-03-22 | 2014-04-22 | Dow Agrosciences Llc | High-strength, low viscosity herbicidal concentrate of clopyralid dimethylamine |
| CN101953353B (en) * | 2010-06-01 | 2013-05-15 | 北京颖泰嘉和生物科技有限公司 | Herbicide composition and use thereof |
| PL2582240T3 (en) * | 2010-06-21 | 2016-09-30 | Herbicidal picolinic acid salt composition | |
| CN103636606A (en) * | 2013-11-22 | 2014-03-19 | 重庆双丰化工有限公司 | Weed killer for preventing and removing rape field broadleaf weeds |
| CN103636607A (en) * | 2013-11-28 | 2014-03-19 | 北京燕化永乐生物科技股份有限公司 | Compound herbicide |
| CN105175324B (en) * | 2015-08-14 | 2019-02-19 | 山东潍坊润丰化工股份有限公司 | A kind of preparation method and application of dichloropyridine hydrochlorate raw medicine and its water-soluble granule |
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| CN1476757A (en) * | 2002-08-20 | 2004-02-25 | 沈阳化工研究院 | Weedicide composite |
| CN1555700A (en) * | 2004-01-02 | 2004-12-22 | 河南省农业科学院植物保护研究所农药 | Composite herbicide used for preventing and eliminating corn field weeds |
| CN1558718A (en) * | 2001-09-27 | 2004-12-29 | �����ɷ� | Herbicidal composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1558718A (en) * | 2001-09-27 | 2004-12-29 | �����ɷ� | Herbicidal composition |
| CN1476757A (en) * | 2002-08-20 | 2004-02-25 | 沈阳化工研究院 | Weedicide composite |
| CN1555700A (en) * | 2004-01-02 | 2004-12-22 | 河南省农业科学院植物保护研究所农药 | Composite herbicide used for preventing and eliminating corn field weeds |
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