CN105211072B - Herbicidal combinations - Google Patents
Herbicidal combinations Download PDFInfo
- Publication number
- CN105211072B CN105211072B CN201510511771.1A CN201510511771A CN105211072B CN 105211072 B CN105211072 B CN 105211072B CN 201510511771 A CN201510511771 A CN 201510511771A CN 105211072 B CN105211072 B CN 105211072B
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- CN
- China
- Prior art keywords
- cyhalofop
- butyl
- fluroxypyr
- clomazone
- monooctyl ester
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 54
- 235000009566 rice Nutrition 0.000 claims abstract description 54
- 241000196324 Embryophyta Species 0.000 claims abstract description 53
- 239000005502 Cyhalofop-butyl Substances 0.000 claims abstract description 43
- 239000005499 Clomazone Substances 0.000 claims abstract description 39
- TYIYMOAHACZAMQ-CQSZACIVSA-N Cyhalofop-butyl Chemical group C1=CC(O[C@H](C)C(=O)OCCCC)=CC=C1OC1=CC=C(C#N)C=C1F TYIYMOAHACZAMQ-CQSZACIVSA-N 0.000 claims abstract description 39
- 150000002148 esters Chemical class 0.000 claims abstract description 39
- KIEDNEWSYUYDSN-UHFFFAOYSA-N clomazone Chemical compound O=C1C(C)(C)CON1CC1=CC=CC=C1Cl KIEDNEWSYUYDSN-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000005558 Fluroxypyr Substances 0.000 claims abstract description 37
- MEFQWPUMEMWTJP-UHFFFAOYSA-N fluroxypyr Chemical compound NC1=C(Cl)C(F)=NC(OCC(O)=O)=C1Cl MEFQWPUMEMWTJP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims description 11
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
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Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a kind of Herbicidal combinations, including following active principle：The different monooctyl ester of cyhalofop-butyl, fluroxypyr is He clomazone, the different monooctyl ester of the cyhalofop-butyl, fluroxypyr are He the weight ratio of clomazone is（15‑35）:（4‑8）:（6‑12）, the different monooctyl ester of cyhalofop-butyl, fluroxypyr is He the gross weight percentage composition of clomazone in the composition is 5 45%.The preventing and kill off with good synergistic function of barnyard grass is carried out in antagonism bion west of the present invention, compared with above-mentioned three kinds of single doses or wherein any two kinds of compositions and improve herbicidal performance, reduce Pesticide use amount, alleviate the pollution to environment, delay the generation of herbicide resistance, and it is good to Security of rice, it is a kind of newtype drug combination for preventing and treating rice terrace annual grassy weeds.
Description
Technical field
The invention belongs to agriculture chemical pesticide field, given birth to more particularly, to one kind for rice field annual grassy weeds and resistance
The Herbicidal combinations of thing type weeds.
Background technology
Cyhalofop-butyl（Cyhalofop-butyl）Belong to aryloxyphenoxypropionic class herbicide, the mechanism of action is acetyl
CoA carboxylase inhibitor, makes aliphatic acid synthesis stopping, and the growth division of cell can not be normally carried out, the knot containing fat such as membranous system
Structure is destroyed, and finally results in Plant death.It is efficient to moleplant seed to paddy rice high safety, there is certain preventive effect to low age barnyard grass, but
It is undesirable to cyhalofop-butyl resistant biotypes moleplant seed effect.
The different monooctyl ester of fluroxypyr（Fluroxypyr-meptyl）Belong to pyridine fluoroacetic acid class herbicide, inhaled with interior
Conduction, after seedling is used, and the reaction of classical hormones class herbicide occurs in sensitive crop.Clearvers, field are prevented and kill off suitable for rice terrace
The broad leaved weeds such as japanese bearbind, shepherd's purse, chickweed, volume stem amaranth, purslane, alternanthera philoxeroides, to grass family and sedge weed effect compared with
Difference.
Clomazone（Clomazone）Belong to heterocycle herbicide, can be absorbed by the root of plant and seedling, sensitivity can be caused
The generation of plant chlorophyll and plamochromic pigment accumulation are interrupted, produce albinism, and the Hill reaction during suppression weeds are photosynthetic makes
Grass cutting blade tip and edge chlorisis, the withered death of the last whole strain of weeds.Can be used for rice terrace prevent and kill off annual gramineae and
Broad leaved weed, but can not effectively prevent and kill off resistant biotypes barnyard grass, resistant biotypes Monochoria vaginalis, resistant biotypes moleplant seed, resistance
The rice terrace resistant biotypes weeds such as bion lady's-grass.
Bion（Biotype）Refer to the monoid that different physiological and ecological characteristics are presented with population or between population.Due to
The season activity between Different groups, biological rhythm, body size, face caused by other natural or artificial condition differences
The difference of color, the resistance to the action of a drug, the potential energy that migrates, sex hormone, isozymogram, genotype frequency etc..The monoid broken up under all these kinds,
Bion can be summarized as in addition to subspecies.It is artificial that involved resistant biotypes weeds, which produce main cause, in this patent
The long-term use same class mechanism of action chemical herbicide, and the anti-medicine for causing the original weeds to the herbicide sensitive to produce
Property, resistant biotypes weeds are formd between population.
Barnyard grass（Echinochloa crusgalli (L.) Beauv.）Angiospermae（Angiospermae）Grass family
（Gramineae）It is a kind of annual herb plant, has common ancestors, therefore profile, life habit and paddy rice pole with paddy rice
All it is one of main malignant weed in rice field all the time to be similar.Enter China in 70-80 20th century, chemical herbicides age,
Farmland weed to China prevents and kill off work and brings Gospel, and substantial amounts of labour is able to free from artificial weeding.But thing
The development of thing is respectively provided with dual character, between past 25 years, the similar mechanism of action such as sulfonylurea, amide-type and synthetic hormone class
The rapid popularization of selective herbicide and use year after year, under the selection index system and pressure of these herbicides, some are to all class medicines
The drug-resistant organisms type that the insensitive drug resistance plant of agent sheet is produced due to gene selects effect starts rapid rise and spread.Cut
Dichloro quinolinic acid resistant biotypes barnyard grass, sulfonylurea resistant biotypes Monochoria korsakowii, five fluorine are occurred in that into current weed community
Sulphur grass amine resistant biotypes barnyard grass, cyhalofop-butyl resistant biotypes moleplant seed etc..Wherein, barnyard grass is come with barnyard grass population Chinese and Western
（Echinochloa crusgalli var. zelayemis）Resistance is especially prominent, and preventing and controlling are the most arduous.Report Shanghai
It is 123.07 to dichloro quinolinic acid resistance index that barnyard grass is carried out in Songjiang District of city new recruit town resistant biotypes west.This high biological resistance west is come
Barnyard grass is carried out in barnyard grass and common west a similar profile, different essence, it or same grass for friend peasant, but this
Resistant biotypes weeds are but extremely difficult to prevent and kill off using conventional kill barnyard grass agent such as dichloro quinolinic acid, bispyribac-sodium, penoxsuam etc.
Purpose, typically can still develop into surging group, strive water with paddy rice and strive fertilizer, paddy growth is had a strong impact on when density is big, water is caused
The different degrees of underproduction of rice, threatens the stability and development of China's Rice Production.
Chinese patent CN 101999357《A kind of herbicidal composition and application thereof》A kind of herbicidal composition is disclosed,
One of its active component is cyhalofop-butyl, and the two of active component is chlorine fluorine pyrrole 2-ethyl hexyl ethanoate, and weight ratio is 1:4-2:4, can have
Effect preventing and treating paddy field weed, while reducing dosage of the medicament in field, saves financial cost, reduces medicament to environment
Do not disturb, and improve the prevention effect to the worst weeds.But its active component is cyhalofop-butyl and chlorine fluorine pyrrole 2-ethyl hexyl ethanoate, is related to
And be a kind of binary built composition for preventing and kill off paddy field weed, its use composition effect evaluation method Gowing methods analyze
Draw, cyhalofop-butyl and the different monooctyl ester mixture of fluroxypyr are phase to barnyard grass, sweet wine intestines, difformed galingale herb and moleplant seed type of action
Plus effect, in the absence of synergistic effect, and it carrys out the resistant biotypes such as barnyard grass to preventing and kill off resistant biotypes moleplant seed, Monochoria vaginalis, west
Weeds effect is general.
Inventor's discovery during the related problem of tackling key problem rice terrace resistant biotypes weed control technology, cyhalofop-butyl,
The different monooctyl ester of fluroxypyr is He three kinds of active ingredient compoundings of clomazone, the mechanism of action of three kinds of active ingredient is different, not only
To rice terrace annual grassy weeds preventive effect, while carrying out barnyard grass to resistant biotypes west in rice terrace barnyard grass has good preventive effect, Er Qie
It is very safe to paddy rice under certain dosage.
The present invention to containing cyhalofop-butyl, the different monooctyl ester of fluroxypyr He the Herbicidal combinations of clomazone use technology
Have made intensive studies, by lot of experiments, complete the present invention, it can effectively solve current rice terrace and prevent and kill off weeds in field dispenser
The problems such as dosage is big, access times are more, residues of pesticides are serious, resistant biotypes weeds are difficult anti-.
The content of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of poison more high and low to crop safety, low-residual, killed
Grass spectrum is wide, can effectively delay the Herbicidal combinations of herbicide resistance.
The technical solution adopted for the present invention to solve the technical problems is：A kind of Herbicidal combinations, including following effective group
Point：The different monooctyl ester of cyhalofop-butyl, fluroxypyr is He clomazone, the different monooctyl ester of the cyhalofop-butyl, fluroxypyr and different
Evil grass pine weight ratio be（15-35）:（4-8）:（6-12）.
Further, the different monooctyl ester of cyhalofop-butyl, fluroxypyr is He the weight ratio of clomazone is 20:6:9.
Further, the different monooctyl ester of cyhalofop-butyl, fluroxypyr is He the weight of clomazone accounts for composition total weight
5-45%。
Further, active principle is with auxiliary agent hybrid process into formulation, and the auxiliary agent includes emulsifying agent, suspending agent, synergy
Agent, preservative and solvent.
Further, emulsifying agent is calcium dodecyl benzene sulfonate, styrylphenol polyoxyethylene ether, alkylaryl polyoxy
Ethene polyethenoxy ether, castor oil polyoxyethylene ether, polyoxyethylene polyoxypropylene block copolymer, APES phosphorus
One or more in acid esters.
Further, suspending agent is the one or more in organobentonite, xanthans.
Further, synergist is in poly- trisiloxanes, AEO, butanedioic acid di-isooctyl sulfonate
It is one or more of.
Further, preservative is the one or more in sodium benzoate, Kathon CG.
Further, solvent is in soybean oil, methyl oleate, methyl naphthalene higher aliphatic hydrocarbon ils, aromatic hydrocarbons S-150 solvent naphtha
One or more.
Further, it is preventing and kill off the application of rice terrace annual grassy weeds and rice terrace resistant biotypes weeds.
The production method of above-mentioned Herbicidal combinations is：In proportion by cyhalofop-butyl, the different monooctyl ester of fluroxypyr He Yi Evil
Careless pine mixing, then be well mixed with emulsifying agent, synergist, suspending agent, preservative and solvent by formula rate missible oil is made, can divide
Dissipate the application forms used in the suitable agricultural productions such as oil-suspending agent, aqueous emulsion.
The present invention Herbicidal combinations frequency of use and usage amount with plant growth, weeds occur, Changes in weather and
There is a small amount of change, the purpose effectively prevented and treated can be reached by using appropriate dosage.
Herbicidal combinations its active component cyhalofop-butyls, the different monooctyl ester of fluroxypyr of the present invention are He clomazone is compounded
It is co-administered, obtains obvious synergistic function, overcome the deficiency of the herbicide containing single-activity component, reduce single
The consumption of active component, the mechanism of action is different, can delay the generation of herbicide resistance, while reducing production cost and making
With cost, and expand herbicide controlling spectrum, can effectively prevent and kill off rice terrace annual grassy weeds and rice terrace resistant biotypes weeds, particularly
Barnyard grass is carried out in rice terrace resistant biotypes west, many advantages, such as it has efficient, low toxicity, low-residual, low cost.And the present invention is used
Auxiliary agent and solvent belong to environmentally friendly type, low toxicity, low-residual, to rice safety, in use to crop, fishes and shrimps and water body not
Murder by poisoning can be produced.
In summary, the beneficial effects of the invention are as follows using conveniently, cost is low, can effectively reduce usage amount, reduces medication
Number of times, broad weed-killing spectrum can effectively delay herbicide resistance, and herbicidal effect is preferable.
Embodiment
In order that those skilled in the art are better understood from the present invention program, below by the technology in inventive embodiments
Scheme carries out clear, complete description.
In following examples active ingredient using 95% cyhalofop-butyl active compound, the different monooctyl ester active compound of 95% fluroxypyr,
96% clomazone active compound, active compound and auxiliary element are commercially available.
Embodiment 1
Cyhalofop-butyl 20%, the different , clomazones 9% of monooctyl ester 6% of fluroxypyr, calcium dodecyl benzene sulfonate 7%, benzene second
Alkenyl benzene phenol polyethenoxy ether 3%, alkylaryl polyoxyethylene poly-oxygen propylene aether 4%, poly- trisiloxanes 5%, methyl oleate 20%, virtue
Hydrocarbon S-150 solvent naphtha surpluses.Above-mentioned all the components are well mixed in the ratio, you can 35% cyanogen fluorine chlorine fluorine is made
Clomazone missible oil.
Embodiment 2
Cyhalofop-butyl 17.5%, the different , clomazones 6% of monooctyl ester 2% of fluroxypyr, calcium dodecyl benzene sulfonate 7%, benzene
Vinyl benzene phenol polyethenoxy ether 4%, castor oil polyoxyethylene ether 4%, AEO 3%, butanedioic acid di-isooctyl
Sulfonate 6%, methyl naphthalene higher aliphatic hydrocarbon ils 10%, aromatic hydrocarbons S-150 solvent naphtha surpluses.By above-mentioned all the components in the ratio
It is well mixed, you can 25.5% cyanogen fluorine chlorine Fu clomazone missible oil is made.
Embodiment 3
Cyhalofop-butyl 35%, the different , clomazones 6% of monooctyl ester 4% of fluroxypyr, calcium dodecyl benzene sulfonate 5%, castor oil
APEO 4%, polyoxyethylene polyoxypropylene block copolymer 3%, organic silicon defoamer 0.1%, organobentonite 3%, soybean
Oily surplus.Above-mentioned all the components are well mixed in the ratio, make resulting material average grain diameter small through horizontal sand mill grinding
In 5 microns, you can the 45% dispersible oil-suspending agent of cyanogen fluorine chlorine Fu clomazones is made.
Embodiment 4
Herbicidal combinations include cyhalofop-butyl 15%, the different , clomazones 4.5% of monooctyl ester 3% of fluroxypyr, dodecyl
Benzene sulfonic acid calcium 8%, styrylphenol polyoxyethylene ether 7%, AEO 3%, organobentonite 3%, methyl oleate
Surplus.Above-mentioned all the components are well mixed in the ratio, resulting material average grain diameter is less than 5 through horizontal sand mill grinding
Micron, you can the 17.5% dispersible oil-suspending agent of cyanogen fluorine chlorine Fu clomazones is made.
Embodiment 5
Herbicidal combinations include cyhalofop-butyl 20%, and the different , clomazones 9% of monooctyl ester 6% of fluroxypyr, polyoxyethylene gathers
Oxypropylene block copolymer 3%, the % of AEO 4, organic silicon defoamer 0.2%, xanthans 0.15%, propane diols
5%, sodium benzoate 0.1%, aromatic hydrocarbons S-150 solvent naphthas 20%, water surplus.After mentioned component is weighed according to the ratio, press
According to following steps operation.Cyhalofop-butyl, fluroxypyr three kinds of active compounds of different monooctyl ester, clomazones are dissolved in aromatic hydrocarbons S-150
In number solvent naphtha, add polyoxyethylene polyoxypropylene block copolymer, AEO and be emulsified into oil phase, it is stand-by；Will
Xanthans, propane diols, sodium benzoate and defoamer are added to the water into aqueous phase；Aqueous phase, high speed shear are slowly added into oil phase
30min, you can 35% cyanogen fluorine chlorine Fu clomazone aqueous emulsions are made.
Embodiment 6
Herbicidal combinations include cyhalofop-butyl 15%, the different , clomazones 12% of monooctyl ester 8% of fluroxypyr, castor oil polyoxy
Vinethene 3%, APES phosphate 2%, polyoxyethylene polyoxypropylene block copolymer 1.5%, xanthans 0.1%,
Aromatic hydrocarbons S-150 solvent naphthas 25%, organobentonite 3%, Kathon CG 0.1%, propane diols 4%, organic silicon defoamer 0.2%, water surplus.
After mentioned component is weighed according to the ratio, operated according to following steps.It is first that cyhalofop-butyl, fluroxypyr is different pungent
Three kinds of active compounds of ester, clomazones are dissolved in aromatic hydrocarbons S-150 solvent naphthas, add castor oil polyoxyethylene ether, alkyl phenol polyoxy
Ethene ether phosphate and polyoxyethylene polyoxypropylene block copolymer are emulsified into oil phase, stand-by.Then by organobentonite, the third two
Alcohol, Kathon CG, organic silicon defoamer are added to the water into aqueous phase.Then aqueous phase, high speed shear 30min are slowly added into oil phase.I.e.
35% cyanogen fluorine chlorine Fu clomazone aqueous emulsions can be made.
In order to verify the effect of Herbicidal combinations, the present invention is by the way of indoor biometricses, to cyhalofop-butyl, chlorine fluorine pyrrole oxygen
The different proportion co-toxicity experiment of 2-ethyl hexyl ethanoate He clomazone.
1. reagent agent
95% cyhalofop-butyl active compound, the different monooctyl ester of 95% fluroxypyr, 96% clomazone active compound.
2. test target
Barnyard grass is carried out in resistant biotypes west（Echinochloa crusgalli var. Zelayensis）Seed collection is in 2013
Nian9Yue Shanghai Songjiangs area, dries, and 4 degrees Celsius of constant temperature preserve stand-by.
3. testing equipment
Beaker, electronic balance, liquid-transfering gun, spray tower（Nanjing Agriculturing Mechanization Inst., Ministry of Agriculture, 3WPSH-500D, spray
Mist pressure 3.0kg/cm3）
4. experimental procedure
Using potted plant cauline leaf process method（NY/T155.4.2006）：In polypots（15cm*11cm*7cm）Built-in quantitative wind
Dry fine earth, will broadcast rear fine earth covering thickness 0.2cm for examination target seed sowing in polypots body.It is positioned in greenhouse and cultivates, often
Its moisturizing by the way of bottom-irrigating, keeps ground moistening.Treat that target length to the of the right age phase carries out cauline leaf spraying treatment, often handle
It is repeated 4 times, and sets the processing without medicament as control.Material is tried after processing and is positioned over warmhouse booth culture, routine observation target target
Victimization state is marked, target damage symptoms and growth inhibition situation are estimated after 3 days, and claims aerial part fresh weight, fresh weight is calculated and suppresses
Rate is i.e. to target weeds preventive effect.
5. medicament configuration and design
The different monooctyl ester active compound, clomazone active compounds of cyhalofop-butyl active compound, fluroxypyr of constant weight are first weighed, are added
DMF solvent is diluted after fully dissolving with the 0.1% Tween 80 aqueous solution, is configured to single dose mother liquor, is set series to match somebody with somebody according to mixture purpose
Than each proportioning sets 7-9 concentration gradient.
The drug concentration gradient design table of table 1
| Medicament is numbered | Herbicide | Medicament gradient g.a.i/ha |
| 1 | Cyhalofop-butyl | 0、50、100、150、200、250、300、350 |
| 2 | The different monooctyl ester of fluroxypyr | 0、30、60、90、120、150、180、210、240 |
| 3 | Clomazone | 0、25、50、75、100、125、150、175 |
| 4 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 15:4:6 | 0、30、60、90、120、150、180 |
| 5 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 15:4:12 | 0、30、60、90、120、150、180 |
| 6 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 15:8:6 | 0、30、60、90、120、150、180 |
| 7 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 15:8:12 | 0、30、60、90、120、150、180 |
| 8 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 20:4:9 | 0、30、60、90、120、150、180 |
| 9 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 20:4:12 | 0、30、60、90、120、150、180 |
| 10 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 20:6:6 | 0、30、60、90、120、150、180 |
| 11 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 20:6:9 | 0、30、60、90、120、150、180 |
| 12 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 20:6:12 | 0、30、60、90、120、150、180 |
| 13 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 20:8:6 | 0、30、60、90、120、150、180 |
| 14 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 20:8:12 | 0、30、60、90、120、150、180 |
| 15 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 25:4:6 | 0、30、60、90、120、150、180 |
| 16 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 25:4:12 | 0、30、60、90、120、150、180 |
| 17 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 25:6:9 | 0、30、60、90、120、150、180 |
| 18 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 25:8:6 | 0、30、60、90、120、150、180 |
| 19 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 25:8:12 | 0、30、60、90、120、150、180 |
| 20 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 30:4:9 | 0、30、60、90、120、150、180 |
| 21 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 30:6:6 | 0、30、60、90、120、150、180 |
| 22 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 30:6:9 | 0、30、60、90、120、150、180 |
| 23 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 30:8:6 | 0、30、60、90、120、150、180 |
| 24 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 35:4:6 | 0、30、60、90、120、150、180 |
| 25 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 35:4:12 | 0、30、60、90、120、150、180 |
| 26 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 35:8:6 | 0、30、60、90、120、150、180 |
| 27 | Cyanogen fluorine：Chlorine fluorine：Yi Evil 35:8:12 | 0、30、60、90、120、150、180 |
6. data statistics and analysis：
6.1 according to investigation statisticses, calculating fresh weight inhibition（%）Fresh weight inhibition（%）=（Compare fresh weight-processing fresh weight）/ right
According to fresh weight * 100%
6.2 co-toxicity coefficient method
Using DPS data processing softwares according to fresh weight inhibition obtain the different monooctyl ester of single dose cyhalofop-butyl, fluroxypyr,
The virulence regression equation of clomazone and 24 groups of Ternary preparations, calculates ED50 values, 95% confidence limit and with the abundant method meters of Sun Yun
Calculate co-toxicity coefficient.
The ED50*100 of the ED50/ Mixed Pharmacies of actual toxicity index ATI=standard agent
Percentage+confession the examination in mixing is assembled of theoretical toxicity index TTI=standard agent toxicity index * standard agents
Percentage+reagent agent toxicity index 2* the reagent agents 2 in mixing is assembled of medicament toxicity index 1* reagent agents 1 are being mixed
Percentage in combined group
Co-toxicity coefficient（CTC）=ATI/TTI*100%
Co-toxicity coefficient is calculated with the abundant methods of Sun Yun.Co-toxicity coefficient is expressed as synergistic effect more than 120, and antagonism is expressed as less than 80
Summation action is expressed as between effect, 80-120.
7. test results and analysis
The cyhalofop-butyl of table 2, the different monooctyl ester of fluroxypyr are He the joint of barnyard grass is carried out in clomazone mixture antagonism bion west
Effect
According to the abundant co-toxicity coefficient methods of Sun Yun, co-toxicity coefficient is more than 120, with synergistic function, is worth bigger, synergistic function
It is more notable.Such as table 2, the different monooctyl ester of cyhalofop-butyl, fluroxypyr He 24 Ternary combination antagonism of clomazone are biological
The fresh weight that barnyard grass is carried out in type west has 15 in obvious inhibitory action, 24 proportionings:4:6；15:4:12；15:8:6；15:8:12；20:
4:9；20:4:12；20:6:6；20:6:9；20:6:12；20:8:6；20:8:12；25:4:6；25:4:12；25:6:9；25:8:
6；25:8:12；30:4:9；30:6:6；30:6:9；30:8:6；35:4:6；35:4:12；35:8:6 and 35:8:12 common poison system
Number is respectively 186.8769；191.562；138.6015；183.67；182.1091；249.833；194.3471；383.835；
261.0611；198.875；250.4630；132.7078；170.2195；120.0028；162.3743；192.3253；
209.016；178.0808；202.5593；170.9167；234.1493；222.2571；213.3809 and 207.6571.Foundation
Co-toxicity coefficient principle, the different monooctyl ester of cyhalofop-butyl, fluroxypyr are He clomazone weight ratio is（15-35）：（4-8）：（6-
12）The preventive effect of barnyard grass is carried out in antagonism bion west in ratio range has a synergistic function, and wherein three's ratio is 20：6：9, altogether
Malicious coefficient value is respectively 383.835, and co-toxicity coefficient value is maximum in above ratio range, and barnyard grass collaboration increasing is carried out in antagonism bion west
Effect effect is most obvious.
8. field efficacy verifies example
Embodiment 1
Field control effectiveness test prevents and kill off direct sowing of rice field weed
Experiment selection is in Changsha Wangcheng County, and the region rice terrace uses herbicide history for many decades, weeds
Resistance hardly possible is anti-；Soil fertility is unanimously medium；Experimental field rice varieties：Obstruct rice, long-grained nonglutinous rice；Planting patterns：Paddy rice water direct seeding；Field
Main weeds have moleplant seed, Monochoria vaginalis, west to carry out the resistant biotypes weeds such as barnyard grass.Experiment sets 9 processing altogether, and each processing sets 3
Repeat.Processing 1 is 35% cyanogen fluorine chlorine Fu clomazone missible oil（20:6:9）；Processing 2 is 45% cyanogen fluorine chlorine Fu Yi Evil grass
The dispersible oil-suspending agent of pine（35:4:6）；Processing 3 is the dispersible oil-suspending agent of the different monooctyl ester of 26% cyhalofop-butyl fluroxypyr
（20:6）；Processing 4 is 29% cyhalofop-butyl clomazone missible oil（20:9）；Processing 5 is the different monooctyl ester of 30% fluroxypyr
Clomazone missible oil（6:9）；Processing 6 is the different monooctyl ester missible oil of 288g/L fluroxypyrs；Processing 7 is 480g/L clomazones breast
Oil；Processing 8 is 10% cyhalofop-butyl missible oil；Processing 9 is control（Do not apply herbicide）, paddy rice is in 3 leaf phases using cauline leaf spray
Mist.Above medicament is provided by research and development department of Zhejiang Tianfeng Biological Science Co., Ltd..
Respondent and method：Observe within 7 days after medication each treatment agent on paddy growth situation influence and weeds it is aggrieved
Situation.30 days after medication, barnyard grass preventive effect and the total preventive effect of field weed community are come in range estimation moleplant seed, Monochoria vaginalis, west.
The cyhalofop-butyl of table 3, the different monooctyl ester of fluroxypyr and clomazone ternary built respectively handle rice direct seeding field medication
30 days field control effectiveness test results.
According to investigation, 7 days after paddy rice medication, 35% cyanogen fluorine chlorine Fu clomazone missible oil of the invention（20:6:9）
With 45% cyanogen fluorine chlorine Fu clomazone missible oil（35:4:6）In the range of test dose to stalk rice and long-grained nonglutinous rice security very well,
Paddy growth is normal, has no that blade such as is burnt, turned to be yellow, withering at the anomaly.The present invention is in certain dosage model as can be seen here
Enclose interior to stalk rice and long-grained nonglutinous rice safety.
As can be seen that first, 35% cyanogen fluorine chlorine fluorine of the invention is different from 30 days result of the tests after the crop field medication of table 3
The loose missible oil of Evil grass（20:6:9）With the 45% dispersible oil-suspending agent of cyanogen fluorine chlorine Fu clomazones（35:4:6）In test dose model
Enclose interior antagonism bion west and carry out the resistant biotypes such as barnyard grass, Monochoria vaginalis, moleplant seed Weed-control effect between more than 85%, field is total
Preventive effect reaches the purpose for preventing and kill off resistant biotypes weeds more than 90%.Second, 35% cyanogen fluorine chlorine Fu clomazone missible oil
（20:6:9）With the 45% dispersible oil-suspending agent of cyanogen fluorine chlorine Fu clomazones（35:4:6）Its weeding in the range of test dose
Effect is intended to apparently higher than comparison medicament（Each single dose control and wherein any two kinds of compositions control）Herbicidal effect.Third, 35%
Cyanogen fluorine chlorine Fu clomazone missible oil（20:6:9）With the 45% dispersible oil-suspending agent of cyanogen fluorine chlorine Fu clomazones（35:4:
6）It is 30-40-50 ga.i./667m2 and 23-31-39 ga.i./667m2 that dosage is distinguished at the 3 leaf phase of paddy rice, you can
The effectively careless feelings of control occur within paddy rice whole breeding time, reach a drug, a season carefree purpose.However, comparison medicament
（Each single dose control and wherein any two kinds of compositions control）To rice terrace resistant biotypes weeds and its overall preventive effect
Yan Jun has weak point, spreading for careless feelings of suppression that at present can only be temporarily, serious area occurs in careless feelings, in addition it is also necessary to according to grass
Feelings weeding again.
As can be seen here, the Herbicidal combinations in the range of certain dosage to rice safety and herbicidal performance is excellent,
With potential agricultural extension value.
Embodiment 2
Field control effectiveness test prevents and kill off weeds in direct sowing on dry paddy field
Experiment selection is in Xiuqian City of Jiangsu Province, and the rice terrace region has continuous using herbicide more than ten years history, and weeds resist
Property difficulty is removed；Experimental field rice varieties：Hybrid paddy rice；Planting patterns：Direct sowing on dry paddy field；Main weeds resistant bion west in field is come
The weeds such as the resistant biotypes such as barnyard grass, lady's-grass, moleplant seed, difformed galingale herb weeds and cyperus iria, eleusine indica.Experiment is set at 6 altogether
Reason, each processing sets 3 repetitions.Processing 1 is 35% cyanogen fluorine chlorine Fu clomazone missible oil（20:6:9）；Processing 2 is 10% pair
Careless ether suspending agent（It is commercially available）；Processing 3 is the dispersible oil-suspending agent of 25g/L penoxsuams（It is commercially available）；Processing 4 is 50% 2 chloroquine
Quinoline acid wettable powder（It is commercially available）；Processing 5 is 600g/L butachlor ecs（It is commercially available）；Processing 6 is blank control（Do not apply weeding
Agent）, paddy rice is in 3 leaf phases using cauline leaf spraying.
Respondent and method：Observe within 7 days after medication each treatment agent on paddy growth situation influence and weeds it is aggrieved
Situation.30 days after medication, the resistant biotypes such as barnyard grass Weed-control effect and field are come in range estimation resistant biotypes moleplant seed, lady's-grass, west
The total preventive effect of weed community.
The cyhalofop-butyl of table 4, the different monooctyl ester of fluroxypyr and clomazone ternary built respectively handle direct-sowing dry paddy field use
30 days field control effectiveness test results after medicine.
According to investigation, 7 days after paddy rice medication, 35% cyanogen fluorine chlorine Fu clomazone missible oil of the invention（20:6:9）
When usage amount is 30-40-50ga.i./667m2 to hybrid paddy rice security very well, paddy growth is normal, has no that blade is burnt, sent out
The anomaly such as yellow, withered.Present invention hybrid paddy rice in the range of suitable dosage is safe as can be seen here.
As can be seen that 35% cyanogen fluorine chlorine Fu clomazones of the invention from 30 days result of the tests after the crop field medication of table 4
Missible oil（20:6:9）Usage amount be 30-40-50ga.i./667m2 when to rice terrace resistant biotypes moleplant seed, resistant biotypes
Barnyard grass, resistant biotypes lady's-grass Weed-control effect are come between 89.76%-100%, the total preventive effect in field is more than 95% in west.35% cyanogen fluorine
Chlorine Fu clomazone missible oil（20:6:9）Usage amount be 30-40-50ga.i./667m2 when its herbicidal effect be intended to apparently higher than
Comparison medicament（Current main flow kills barnyard grass agent）Herbicidal effect.
As can be seen here, the Herbicidal combinations in the range of certain dosage to hybrid rice safety and herbicidal performance is excellent
It is different, with potential agricultural extension value.
During the patented invention, also many embodiments are numerous to list herein.
To sum up virulence test and field experiment are as a result, it was confirmed that the present invention contains cyhalofop-butyl, the different monooctyl ester of fluroxypyr
The Herbicidal combinations of He clomazones, are mainly used in preventing and kill off rice terrace annual grassy weeds, have to field resistance bion weeds
Good preventive effect effect, and to rice safety.Herbicidal combinations of the present invention have the mechanism of action unique, and dosage is low, kills
Grass spectrum is wide, the advantages of lasting period is long.So, the present invention contains cyhalofop-butyl, the different monooctyl ester of fluroxypyr He clomazone
The research and development and popularization of Herbicidal combinations have huge economic and social benefit.
Claims (2)
1. a kind of Herbicidal combinations, it is characterised in that：Including following active principle：The different monooctyl ester of cyhalofop-butyl, fluroxypyr
He clomazone, the different monooctyl ester of the cyhalofop-butyl, fluroxypyr are He the weight ratio of clomazone is 20:6:9；It is described effective
Component and auxiliary agent hybrid process are into 35% missible oil.
2. Herbicidal combinations according to claim 1, it is characterised in that：It is preventing and kill off rice terrace annual grassy weeds and paddy rice
The application of field resistant biotypes weeds.
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| CN108576016A (en) * | 2018-01-20 | 2018-09-28 | 浙江天丰生物科学有限公司 | A kind of polynary Herbicidal combinations of rice terrace |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106106454A (en) * | 2016-03-19 | 2016-11-16 | 仲恺农业工程学院 | A kind of complex composition for preventing and kill off Alternanthera philoxeroides |
| CN106857553A (en) * | 2017-01-05 | 2017-06-20 | 浙江天丰生物科学有限公司 | Han You metamifops, the different monooctyl ester of fluroxypyr are He the Herbicidal combinations of clomazone |
| CN107183027A (en) * | 2017-06-16 | 2017-09-22 | 浙江天丰生物科学有限公司 | Polynary Herbicidal composition for rice field |
| CN107136111A (en) * | 2017-06-16 | 2017-09-08 | 浙江天丰生物科学有限公司 | Herbicidal composition for rice field |
| CN112438265A (en) * | 2019-08-27 | 2021-03-05 | 青岛清原化合物有限公司 | Weeding composition containing R-type pyridyloxycarboxylic acid derivative and application thereof |
| CN113133450B (en) * | 2020-01-17 | 2023-10-20 | 成都新朝阳作物科学股份有限公司 | Use of polyether compounds as potentiators of herbicides |
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| CN108576016A (en) * | 2018-01-20 | 2018-09-28 | 浙江天丰生物科学有限公司 | A kind of polynary Herbicidal combinations of rice terrace |
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