CN104273136B - A kind of Herbicidal combinations containing 2 first 4 chlorine and mefenacet - Google Patents
A kind of Herbicidal combinations containing 2 first 4 chlorine and mefenacet Download PDFInfo
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- CN104273136B CN104273136B CN201410535159.3A CN201410535159A CN104273136B CN 104273136 B CN104273136 B CN 104273136B CN 201410535159 A CN201410535159 A CN 201410535159A CN 104273136 B CN104273136 B CN 104273136B
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- mefenacet
- chlorine
- herbicidal combinations
- weed
- pesticide
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- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 239000000460 chlorine Substances 0.000 title claims abstract description 31
- 229910052801 chlorine Inorganic materials 0.000 title claims abstract description 31
- XIGAUIHYSDTJHW-UHFFFAOYSA-N mefenacet Chemical compound N=1C2=CC=CC=C2SC=1OCC(=O)N(C)C1=CC=CC=C1 XIGAUIHYSDTJHW-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 230000002363 herbicidal effect Effects 0.000 title claims abstract description 27
- 241000196324 Embryophyta Species 0.000 claims abstract description 39
- 239000000203 mixture Substances 0.000 claims description 18
- 240000007594 Oryza sativa Species 0.000 claims description 17
- 235000007164 Oryza sativa Nutrition 0.000 claims description 17
- 235000009566 rice Nutrition 0.000 claims description 16
- 239000000575 pesticide Substances 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 238000009472 formulation Methods 0.000 claims description 6
- 239000004563 wettable powder Substances 0.000 claims description 4
- 239000007900 aqueous suspension Substances 0.000 claims description 2
- 239000012752 auxiliary agent Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 238000001228 spectrum Methods 0.000 abstract description 4
- 206010059866 Drug resistance Diseases 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 3
- 241001290610 Abildgaardia Species 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 abstract description 2
- 230000003449 preventive effect Effects 0.000 description 21
- 238000002360 preparation method Methods 0.000 description 19
- 244000025254 Cannabis sativa Species 0.000 description 16
- 241000192043 Echinochloa Species 0.000 description 13
- 235000009508 confectionery Nutrition 0.000 description 10
- 230000000968 intestinal effect Effects 0.000 description 10
- 210000000582 semen Anatomy 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- 239000000375 suspending agent Substances 0.000 description 8
- 150000001412 amines Chemical class 0.000 description 7
- 239000004009 herbicide Substances 0.000 description 7
- 239000003814 drug Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000013530 defoamer Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 238000000498 ball milling Methods 0.000 description 3
- 230000032823 cell division Effects 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 230000001988 toxicity Effects 0.000 description 3
- 231100000419 toxicity Toxicity 0.000 description 3
- 239000004562 water dispersible granule Substances 0.000 description 3
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Divinylene sulfide Natural products C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- -1 acyl aniline Chemical compound 0.000 description 2
- 125000002252 acyl group Chemical group 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000006184 cosolvent Substances 0.000 description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 2
- QYDYPVFESGNLHU-UHFFFAOYSA-N elaidic acid methyl ester Natural products CCCCCCCCC=CCCCCCCCC(=O)OC QYDYPVFESGNLHU-UHFFFAOYSA-N 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- QYDYPVFESGNLHU-KHPPLWFESA-N methyl oleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC QYDYPVFESGNLHU-KHPPLWFESA-N 0.000 description 2
- 229940073769 methyl oleate Drugs 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229930192474 thiophene Natural products 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009333 weeding Methods 0.000 description 2
- 239000000080 wetting agent Substances 0.000 description 2
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 1
- ZEMPKEQAKRGZGQ-AAKVHIHISA-N 2,3-bis[[(z)-12-hydroxyoctadec-9-enoyl]oxy]propyl (z)-12-hydroxyoctadec-9-enoate Chemical compound CCCCCCC(O)C\C=C/CCCCCCCC(=O)OCC(OC(=O)CCCCCCC\C=C/CC(O)CCCCCC)COC(=O)CCCCCCC\C=C/CC(O)CCCCCC ZEMPKEQAKRGZGQ-AAKVHIHISA-N 0.000 description 1
- VTNQPKFIQCLBDU-UHFFFAOYSA-N Acetochlor Chemical compound CCOCN(C(=O)CCl)C1=C(C)C=CC=C1CC VTNQPKFIQCLBDU-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 244000285790 Cyperus iria Species 0.000 description 1
- 239000005574 MCPA Substances 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241000091577 Mexicana Species 0.000 description 1
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N N-phenyl amine Natural products NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 240000009132 Sagittaria sagittifolia Species 0.000 description 1
- 235000006466 Sagittaria sagittifolia Nutrition 0.000 description 1
- 244000018694 Sagittaria sinensis Species 0.000 description 1
- 235000015909 Sagittaria sinensis Nutrition 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229940100389 Sulfonylurea Drugs 0.000 description 1
- WHKUVVPPKQRRBV-UHFFFAOYSA-N Trasan Chemical compound CC1=CC(Cl)=CC=C1OCC(O)=O WHKUVVPPKQRRBV-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- VNHHSBRJHXRDTE-UHFFFAOYSA-N benzenesulfonic acid;calcium Chemical compound [Ca].OS(=O)(=O)C1=CC=CC=C1 VNHHSBRJHXRDTE-UHFFFAOYSA-N 0.000 description 1
- 210000003969 blast cell Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- HKPHPIREJKHECO-UHFFFAOYSA-N butachlor Chemical compound CCCCOCN(C(=O)CCl)C1=C(CC)C=CC=C1CC HKPHPIREJKHECO-UHFFFAOYSA-N 0.000 description 1
- UDHMTPILEWBIQI-UHFFFAOYSA-N butyl naphthalene-1-sulfonate;sodium Chemical compound [Na].C1=CC=C2C(S(=O)(=O)OCCCC)=CC=CC2=C1 UDHMTPILEWBIQI-UHFFFAOYSA-N 0.000 description 1
- 229920005551 calcium lignosulfonate Polymers 0.000 description 1
- OOCMUZJPDXYRFD-UHFFFAOYSA-L calcium;2-dodecylbenzenesulfonate Chemical compound [Ca+2].CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O.CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O OOCMUZJPDXYRFD-UHFFFAOYSA-L 0.000 description 1
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 230000010261 cell growth Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000857 drug effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 241001233957 eudicotyledons Species 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 239000007952 growth promoter Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- JYVLIDXNZAXMDK-UHFFFAOYSA-N methyl propyl carbinol Natural products CCCC(C)O JYVLIDXNZAXMDK-UHFFFAOYSA-N 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- LCPDWSOZIOUXRV-UHFFFAOYSA-N phenoxyacetic acid Chemical class OC(=O)COC1=CC=CC=C1 LCPDWSOZIOUXRV-UHFFFAOYSA-N 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- 241000894007 species Species 0.000 description 1
- YROXIXLRRCOBKF-UHFFFAOYSA-N sulfonylurea Chemical class OC(=N)N=S(=O)=O YROXIXLRRCOBKF-UHFFFAOYSA-N 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 230000005945 translocation Effects 0.000 description 1
- 230000001018 virulence Effects 0.000 description 1
- 235000010493 xanthan gum Nutrition 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a kind of Herbicidal combinations containing 2 first 4 chlorine and mefenacet, it includes active component 2 first 4 chlorine and the mefenacet that weight ratio is 1:20～20:1.The Herbicidal combinations of the present invention is different from mefenacet mechanisms due to 2 first 4 chlorine, the advantage combining two kinds of single doses after Fu Pei, has reached more preferable herbicidal effect, uses relative to single dose and has obvious potentiation, reduce dosage, reduce cost and safer；Expand weed control spectrum, broad leaved weed, sedge weed and grassy weed are all had preferable prevention effect；The Drug resistance because using single dose to produce can be slowed down simultaneously.
Description
Technical field
The present invention relates to a kind of herbicide for preventing and kill off rice field weeds, be specifically related to a kind of containing 2 first 4 chlorine with
The Herbicidal combinations of mefenacet, belongs to technical field of pesticide.
Background technology
In global agrochemical market, herbicide occupies the market share of 43%, and increases year by year.Oryza sativa L. is China
First grande culture thing, the herbicide kind quantity of whole nation registration also ranks first place.But due to use for many years, some
Herbicide such as sulfonylurea and amide-type make weeds in paddy field create Drug resistance；Although butachlor and Acetochlor use face
Long-pending big, but also bring hydrobiological toxicity problem simultaneously；In addition herbicides for use in paddy is many with cream or wettability
Powder is main, brings the problem such as environmental pollution, drug effect poisoning；Weed Communities in Paddy Fields develops simultaneously is also to rice field
One new challenge of herbicide.
2 first 4 chlorine, have another name called 2-methyl-4-chlorophenoxyacetic acid.Remove for phenoxy acetic acid class selectivity Uptake and translocation hormone-type
Grass agent, can destroy the conducting tissue of dicotyledon, make growth promoter be interfered.Rice field great majority can be prevented and kill off
Sedge weed and broad leaved weed, such as flat stalk grass, Herba monochoriae vaginalis, Rhizoma Alismatis, Sagittaria trifolia L. Var. Angusti-folia(Sieb.) Kitag.(Sagittaria sagittifolia L.) etc., but to grassy weed
Preventive effect is poor, limits it and promotes the use of.
Mefenacet, is again Herba Dendrobii amine, the entitled 2 one benzothiazole-2-base oxygen-N-exalgines of chemistry.
It is selectivity inner sucting conduction type acyl aniline herbicide, is cell growth and division inhibitor, to young former blast cell
Division has the strongest inhibitory action.Main by bud scale and root absorption, conduct to weeds through xylem and phloem
Plumelet and tender leaf, stop weed growth point cell division elongation, after grassy weed (barnyard grass) contacts this medicine
Quickly it is gathered at growing point.Can effectively prevent and kill off grassy weed, barnyard grass is had specially good effect in rudiment to 2 leaf phases, right
Semen Euphorbiae, Herba Eleocharitis acicularis, Herba Euphorbiae Helioscopiae, Herba monochoriae vaginalis, mexicana, abnormity dried tuber, flat dried tuber, cyperus iria and water for many years
Raw dried tuber also has certain preventive effect.But exist and be used alone cost height, be unfavorable for that spread uses.
In actual use, 2 first 4 chlorine can prevent and kill off most of dried tuber and broad leaved weed, but to grassy weed
Effect is poor；Mefenacet has specially good effect in rudiment to 2 leaf phases to annual gramineous weed especially barnyard grass, but
Poor to part broad leaved weed preventive effect.
Summary of the invention
It is an object of the invention to provide that a kind of herbicidal spectrum is wide, preventive effect good, low cost containing 2 first 4 chlorine and benzene thiophene acyl
The Herbicidal combinations of grass amine, is respectively provided with remarkable result in broad leaved weed and grassy weed in preventing and kill off rice terrace.
A kind of Herbicidal combinations containing 2 first 4 chlorine and mefenacet of the present invention, include weight ratio be 1:20～
Active component 2 first 4 chlorine of 20:1 and mefenacet；Preferably, described 2 first 4 chlorine and mefenacet
Weight ratio is 1:20～5:1, more preferably 1:20,1:15 and 5:1.
Described compositions is added with acceptable auxiliary agent on pesticide and makes the agriculturally conventional formulations of pesticide, as made
Become the formulations of pesticide such as aqueous suspension agent, oil-suspending agent, aqueous emulsion, wettable powder, water dispersible granules, be preferably made
Oil-suspending agent or water dispersible granules.The insecticides adjuvant used includes wetting agent, dispersant, surfactant, thickening
Each analog assistants such as agent, defoamer, antifreezing agent, solvent, cosolvent, filler, the wetting agent used, dispersant
For in dispersing agent MF, sodium lignin sulfonate, calcium lignosulfonate, sodium butylnaphthalenesulfonate etc.
Kind or thickening agent multiple, that use are one or both in xanthan gum, sodium alginate；The defoamer used is phosphorus
Acid tributyl and organic silicon defoamer in one or both；The antifreezing agent used is ethylene glycol, propylene glycol and carbamide
In one or more；The emulsifying agent used be calcium dodecyl benzene sulfonate, PULLRONIC F68 block gather
Compound (L series such as L61, L62, L63, L64 etc.), condensation compound of alkyl phenol and epoxy ethane (the serial such as TX-4 of TX,
TX-5, TX-7, TX-9 etc.), Oleum Ricini/castor oil hydrogenated and ethylene oxide condensate (such as EL60, EL80, EL90)
One or more in Deng；The solvent used is methyl oleate；The cosolvent used is butanol；Used
Filler is one or more in white carbon, Kaolin, attapulgite etc.；
In the described formulations of pesticide, active component 2 first 4 chlorine accounts for Herbicidal combinations gross weight with the cumulant of mefenacet
The 1～50% of amount, it is preferred that described active component 2 first 4 chlorine accounts for Herbicidal combinations with the cumulant of mefenacet
The 15～50% of gross weight.
The application in preventing and kill off rice field weeds of the described Herbicidal combinations.
For the careful analysis of 2 first 4 chlorine Yu mefenacet weeding characteristic, Wadley method is used to carry out quantitative screening,
Prepare each single dose and variant proportioning mixture Concentraton gradient.Test material selects barnyard grass, sweet wine intestinal, uses indoor biometrics
Method.Each concentration processes 4 times and repeats, and often repeating number of weeds is 30 strains.Spraying equipment is spray tower, air pressure
0.8-0.4mpa.During dispenser, barnyard grass is the 1-1.5 leaf phase, and sweet wine intestinal was 2 leaf phases.By accurate spray tower actual spray powder
Long-pending (0.19m2, spraying volume is 10ml, and equivalent amount of liquid medicine is 35L/ mu) accurately prepares the medicine needed for each process
Liquid.Calculated the fresh weight preventive effect of each process by following equation, unit is percentage rate (%), and result of calculation retains arithmetic point
Latter two.
E=C T/C × 100
In formula: E is fresh weight preventive effect；C is comparison weeds fresh weight；T is for processing weeds fresh weight.
Fresh weight preventive effect is converted into suppression probit value (Y), and drug concentration is converted into log concentration (X), by log concentration
It is that vertical coordinate makees the toxicity regression straight line each single dose of calculating and mixture virulence regression equation y=a for abscissa, probit value0+b0X
With r value, seek ED50(g.a.i/hm2).The potentiation ratio (SR) of mixture is calculated according to Wadley formula.
ED50(theoretical)=(a+b)/(a/ED50A+b/ED50B)
SR=ED50Theoretical value/ED50Actual value
In formula, A, B are each components in mixture, and a, b are these components content ratios in mixture.
Synergy overall merit is made according to SR.When SR >=1.5, for potentiation；As 1.5 SR 0.5,
For addition；When SR≤0.5, for antagonism.
From table 1 below, data can be analyzed and obtain, and 2 first 4 chlorine and mefenacet are with 1:20～20:1 ratio
Mixture, has preferable prevention effect to such as barnyard grass, the broad leaved weed such as sweet wine intestinal of the annual gramineous weed in rice terrace.
Table 12 first 4 chlorine, mefenacet and mixture thereof prevent and kill off the activity of weeding of paddy field weed
In table, 2 first are 2 first 4 chlorine, and benzene thiophene acyl is mefenacet.
Inventor finds through research, 2 first 4 chlorine and mefenacet is carried out rational mixture, can overcome unitary system
Agent defect also has notable potentiation, and expansion weeds spectrum, a dispenser can prevent and kill off rice terrace overwhelming majority weeds, reduce
Spraying times, reduces cost accounting, slows down Drug resistance, to rice safety.The Herbicidal combinations of the present invention is due to 2
First 4 chlorine is different from mefenacet mechanisms, the advantage combining two kinds of single doses after compounding, and has reached preferably to remove
Grass effect, uses relative to single dose and has obvious potentiation, can replace part high price pesticide species, and subtract
Few dosage, effectively reduces ecological disruption and environmental pollution, and can improve crop yield and quality；In the present invention 2
First 4 chlorine and mefenacet all belong to the toxicity such as low, and to people and animals, beneficial organism, Environmental security；It is right to expand
Weed control spectrum, all has preferable prevention effect to broad leaved weed and grassy weed, and weeds can be delayed to resist single medicament
The property of medicine.
Detailed description of the invention
Following embodiment is to further illustrate using as the explaination to the technology of the present invention content for present invention,
But the flesh and blood of the present invention is not limited in described in following embodiment, those of ordinary skill in the art can and should
When know any simple change based on true spirit or replace all should belong to protection model of the presently claimed invention
Enclose.
Embodiment 1
The preparation method of the 2 first 4 chlorine mefenacet wettable powders of 42%: by weight percentage.
Preparation method: above component is pressed formula proportion and adds mixer mix homogeneously laggard row comminution by gas stream, powder
Broken complete after stir, wettable powder product.Every mu of preparation consumption 150-200g is used for preventing and treating
Rice field grassy weed barnyard grass, Semen Euphorbiae and broad leaved weed sweet wine intestinal, Herba monochoriae vaginalis and dried tuber, fresh weight preventive effect can be distinguished
Reaching 93.30%, 88.65%, 93.83%, 90.66%, 91.16%, total grass fresh weight preventive effect is up to 92.79%.
Embodiment 2
The preparation method of the 2 first 4 chlorine mefenacet suspending agents of 32%: by weight percentage.
Preparation method: according to formula, above component weighed in proportion, adds ball mill ball milling 30 minutes, benzene
Thiophene acyl grass amine filters after fully dissolving, and suction dispersion tank high speed shear was fully ground through sand mill after 3 minutes, controls
Solid constituent particle diameter, within 2 microns, grinds and stirs after terminating, obtain suspending agent product.Every mu of system
Agent consumption 150-200g be used for preventing and treating rice field grassy weed barnyard grass, Semen Euphorbiae and broad leaved weed sweet wine intestinal, Herba monochoriae vaginalis with
And dried tuber, fresh weight preventive effect can reach 91.16%, 87.75%, 89.15%, 85.53%, 91.36% respectively, total grass fresh weight
Preventive effect is up to 88.94%.
Embodiment 3
The preparation method of the 2 first 4 chlorobenzene thiophene acyl grass aqueous amine Emulsions of 16%: by weight percentage.
Preparation method: 2 first 4 chlorine and mefenacet are dissolved in methyl oleate and butanol, call in emulsifying agent dodecane
Base benzenesulfonic acid calcium and TX-9, stir, and in high-speed shearing machine, limit sheared edge introduces aqueous phase, then proceedes to shear
20 minutes, call in defoamer, stir, obtain finished product.Every mu of preparation consumption 150-200g is used for preventing and treating rice field
Grassy weed barnyard grass, Semen Euphorbiae and broad leaved weed sweet wine intestinal, Herba monochoriae vaginalis and dried tuber, fresh weight preventive effect can reach respectively
93.14%, 90.31%, 92.65%, 88.65%, 91.10%, total grass fresh weight preventive effect is up to 90.97%.
Embodiment 4
The preparation method of the 2 first 4 chlorine mefenacet suspending agents of 36%: by weight percentage.
Preparation method: according to formula, above component weighed in proportion, adds ball mill ball milling 30 minutes, benzene
Thiophene acyl grass amine filters after fully dissolving, and suction dispersion tank high speed shear was fully ground through sand mill after 3 minutes, controls
Solid constituent particle diameter, within 2 microns, grinds and stirs after terminating, obtain suspending agent product.Every mu of system
Agent consumption 150-200g be used for preventing and treating rice field grassy weed barnyard grass, Semen Euphorbiae and broad leaved weed sweet wine intestinal, Herba monochoriae vaginalis with
And dried tuber, fresh weight preventive effect can reach 88.32%, 87.39%, 92.93%, 90.67%, 90.65% respectively, total grass fresh weight
Preventive effect is up to 89.99%.
Embodiment 5
The preparation method of 48%2 first 4 chlorine mefenacet wettable powders: by weight percentage.
Preparation method: above component being pressed formula proportion and adds mixer mix homogeneously laggard row comminution by gas stream, pulverizing completes
After stir, wettable powder product.Every mu of preparation consumption 150-200g is used for preventing and treating rice field standing grain
Undergraduate course weeds barnyard grass, Semen Euphorbiae and broad leaved weed sweet wine intestinal, Herba monochoriae vaginalis and dried tuber, fresh weight preventive effect can reach 87.69% respectively,
88.73%, 94.62%, 91.91%, 88.66%, total grass fresh weight preventive effect is up to 90.77%.
Embodiment 6
The preparation method of 21%2 first 4 chlorine mefenacet suspending agents: by weight percentage.
Preparation method: according to formula, above component weighed in proportion, adds ball mill ball milling 30 minutes, benzene thiophene acyl grass
Amine filters after fully dissolving, and suction dispersion tank high speed shear was fully ground through sand mill after 3 minutes, controls solid group
Divide particle diameter within 2 microns, grind and stir after terminating, obtain suspending agent product.Every mu of preparation consumption
150-200g is used for preventing and treating rice field grassy weed barnyard grass, Semen Euphorbiae and broad leaved weed sweet wine intestinal, Herba monochoriae vaginalis and dried tuber,
Fresh weight preventive effect can reach 91.36%, 88.56%, 90.63%, 89.59%, 89.76% respectively, total grass fresh weight preventive effect up to
90.56%.
Embodiment 7
The preparation method of 16%2 first 4 chlorobenzene thiophene acyl grass aqueous amine dispersible granules: by weight percentage.
Preparation method: above component being pressed formula proportion and adds mixer mix homogeneously laggard row comminution by gas stream, pulverizing completes
The a small amount of purified water of rear addition stirs, extruder grain, after drying water dispersible granules product.Every mu
Preparation consumption 150-200g is used for preventing and treating rice field grassy weed barnyard grass, Semen Euphorbiae and broad leaved weed sweet wine intestinal, Herba monochoriae vaginalis
And dried tuber, fresh weight preventive effect can reach 91.28%, 88.97%, 92.11%, 87.69%, 88.97% respectively, and total grass is fresh
Weight preventive effect is up to 89.30%.
Claims (6)
1. the Herbicidal combinations containing 2 first 4 chlorine with mefenacet, it is characterised in that: include active component 2 first 4 chlorine and mefenacet that weight ratio is 1:20～1:15 or 5:1.
2. Herbicidal combinations as claimed in claim 1, it is characterised in that: it is added with acceptable auxiliary agent on pesticide and makes the agriculturally conventional formulations of pesticide.
3. Herbicidal combinations as claimed in claim 2, it is characterised in that: the described formulations of pesticide are aqueous suspension agent or wettable powder.
4. Herbicidal combinations as claimed in claim 2 or claim 3, it is characterised in that: in the described formulations of pesticide, active component 2 first 4 chlorine accounts for the 1～50% of Herbicidal combinations gross weight with the cumulant of mefenacet.
5. Herbicidal combinations as claimed in claim 4, it is characterised in that: described active component 2 first 4 chlorine accounts for the 15～50% of Herbicidal combinations gross weight with the cumulant of mefenacet.
6. the application in preventing and kill off rice field weeds of the Herbicidal combinations described in any one of claim 1-5.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101653117A (en) * | 2009-08-31 | 2010-02-24 | 江苏辉丰农化股份有限公司 | Rice field herbicide composite containing cyhalofop butyl |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101653117A (en) * | 2009-08-31 | 2010-02-24 | 江苏辉丰农化股份有限公司 | Rice field herbicide composite containing cyhalofop butyl |
Non-Patent Citations (1)
| Title |
|---|
| 稻特利Ⅱ(苯噻酰草胺)防除中稻秧田杂草试验总结;沈杰等;《湖北植保》;20001231(第3期);第35页 * |
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