CN104396991A - Mixed weedicide containing flazasulfuron, fluroxypyr and trifluralin - Google Patents
Mixed weedicide containing flazasulfuron, fluroxypyr and trifluralin Download PDFInfo
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- CN104396991A CN104396991A CN201410715079.6A CN201410715079A CN104396991A CN 104396991 A CN104396991 A CN 104396991A CN 201410715079 A CN201410715079 A CN 201410715079A CN 104396991 A CN104396991 A CN 104396991A
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- Prior art keywords
- fluroxypyr
- flazasulfuron
- trefanocide
- herbicide
- weed
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- ZSDSQXJSNMTJDA-UHFFFAOYSA-N trifluralin Chemical compound CCCN(CCC)C1=C([N+]([O-])=O)C=C(C(F)(F)F)C=C1[N+]([O-])=O ZSDSQXJSNMTJDA-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 239000005514 Flazasulfuron Substances 0.000 title claims abstract description 50
- HWATZEJQIXKWQS-UHFFFAOYSA-N Flazasulfuron Chemical compound COC1=CC(OC)=NC(NC(=O)NS(=O)(=O)C=2C(=CC=CN=2)C(F)(F)F)=N1 HWATZEJQIXKWQS-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000005558 Fluroxypyr Substances 0.000 title claims abstract description 50
- MEFQWPUMEMWTJP-UHFFFAOYSA-N fluroxypyr Chemical compound NC1=C(Cl)C(F)=NC(OCC(O)=O)=C1Cl MEFQWPUMEMWTJP-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 241000196324 Embryophyta Species 0.000 claims abstract description 62
- 239000004009 herbicide Substances 0.000 claims description 81
- 230000002363 herbicidal effect Effects 0.000 claims description 59
- YZHUMGUJCQRKBT-UHFFFAOYSA-M sodium chlorate Chemical class [Na+].[O-]Cl(=O)=O YZHUMGUJCQRKBT-UHFFFAOYSA-M 0.000 claims description 28
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- OCUSNPIJIZCRSZ-ZTZWCFDHSA-N (2s)-2-amino-3-methylbutanoic acid;(2s)-2-amino-4-methylpentanoic acid;(2s,3s)-2-amino-3-methylpentanoic acid Chemical compound CC(C)[C@H](N)C(O)=O.CC[C@H](C)[C@H](N)C(O)=O.CC(C)C[C@H](N)C(O)=O OCUSNPIJIZCRSZ-ZTZWCFDHSA-N 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a mixed weedicide containing flazasulfuron, fluroxypyr and trifluralin. The mixed weedicide adopts flazasulfuron, fluroxypyr and trifluralin as main effective components, wherein the mass ratio of flazasulfuron to fluroxypyr to trifluralin is (0.1-80) to (0.1-80) to (0.1-80). The mixed weedicide can be applied to weeding in front of and behind lawn seedlings, particularly to prevention and removal of various grassy, cyperaceous and broad-leaved weeds in the lawn, and has a remarkable effect; in addition, the mixed weedicide has a relatively good synergetic effect, can delay the resistance of the weeds, and is wide in weeding spectrum, long in lasting time, safe to the lawn and remarkably superior to a single weedicide in effect.
Description
Technical field
The invention belongs to technical field of pesticide, relate to a kind of weed killer herbicide, be specifically related to a kind of flazasulfuron, fluroxypyr mixes built agent with the ternary of trefanocide, before this herbicidal composition can be applicable to lawn seedling, postemergence weed control.
Background technology
Along with the quickening of Urbanization in China, the lifting of urban afforestation standard and increasing substantially of urban size, arising at the historic moment in various lawn, has caused the great demand to lawn, and Development of Turf has good business opportunity., aesthetic firm in infrastructure such as guarantee highway, railway, airport, reservoir, riverbank, Hu Di, lawn is important auxiliary equipment; In urban construction, afforestation, can better people's living environment greatly in lawn, effectively reduce " tropical island effect " in city.The area of green grassland, quality reflect The Surroundings in Cities quality and civilization degree.Some developed countries as the city of the U.S., European Union especially using Lawn Industry as one of national pillar industry.At present, the Lawn Industry of China has large development, but not yet forms complete integrated industrial system.Lawn is beautified and is improved in China's urban construction, living environment in the spiritual civilization level of the people and plays key player, and it not only has very high economic benefit, and has huge ecological benefits and social benefit.
But, because management is improper, there is Quality Down in a lot of lawn, the problems such as turfgrass is dead, weedy, damage by disease and insect occur again and again, the use value on serious reduction lawn and landscape value, cause a large amount of fund wastes, so research turf management technology, especially Kill weeds technology is the important measures changing lawn present situation and improve ecotope.
Artificial weeding, throwing work is large, weeding is thorough, has the disadvantage of trampleing on lawn, thus reduces turf quality.Some places have to change lawn, costly.Chemical weed control saving of work and time, low-cost high-efficiency, later stage weeds generating capacity is few, and this is that artificial uprooting weed institute can not be than.And chemical weed control also has sealing process, the weeds later newly gone out want much less.Chemical weed control is few to lawn interference, for Turfgrass Growth provides rational environment.Weeding expense is low, and an expense is the l/3-l/4 of labour cost, and the expense of a year is the 1/4-1/5 of labour cost.Labour intensity is low, and a people can spray 7-9 mu lawn every day, and machine nebulization efficiency is higher, has large area weeding advantage.In order to reduce the economic loss that crop smothering causes, reduce labor intensity, simultaneously also because chemical weed control is convenient, quick-acting, the control time is long, chemical weed control is gradually by people are accepted.
Flazasulfuron (flazasulfuron) is the sulfonylurea herbicide being originated in the exploitation of industry chemical company by Japanese stone.Chemical name 1-(4,6-dimethoxypyridin-2-base)-3-(3-trifluoromethyl-2-pyridine sulfonyl sulfonyl) urea, its structural representation is as follows:
Flazasulfuron is acetolactate synthestase (ALS) inhibitor.The main reaction suppressing the predecessor acetolactate synthestase producing side chain amino acid, leucine, isoleucine and valine.This medicament broad weed-killing spectrum, annual broad-leaved and grassy weed in Weeds in Turf that can not only be fabulous, and perennial broadleaf weed and sedge weed can also be prevented and kill off, as lady's-grass, barnyard grass, eleusine indica, annual bluegrass, amur foxtail, green foxtail, the rhizome of nutgrass flatsedge, kyllinga brevifolia, cyperus iria, difformed galingale herb, alternanthera philoxeroides, Horseweed Herb, white clover, it is recklessly appropriate, Tufted Cerastium, creeping oxalis, hairy tare, pale reddish brown order place, clover, pale persicaria, sheep hoof, class humid euphorbia, greater plantain, argy wormwood, sweet vernal grass, green amaranth, shepherd's purse, benbie, common vetch, chickweed etc., to short leaf kyllinga brevifolia, lady's-grass and rhizome of nutgrass flatsedge preventive effect splendid.
Generally, process after weeds stop growing immediately, absorbs the leaf chlorisis newly sent afterwards for 4-5 days, then gradually necrosis and spread to whole plant 20-30 days weeds thoroughly withered.This medicament absorbs by weeds cauline leaf, and can suppress suppressing weed seed germination in soil again, the control time is longer, and the lasting period is about more than 40 days in spring and summer, and autumn and winter is more than 120 days.
Flazasulfuron is the herbicides special that first, China is formally registered on warm-season turf (Korea lawn grass class and Bermuda grass class).Can rapidly medicament be decomposed, be converted into innocuous substance after Korea lawn grass contacts medicament with Bermuda grass class turfgrass, the normal growth on lawn can not be affected, high to turfgrass safety.Use in lawn resting stage, germination in the future and growth can not be affected.Be widely used in greening lawn, golf course etc.
Fluroxypyr (Fluroxypyr) is the pyridine oxycarboxylic acid class weed killer herbicide developed by Dow Chemical Co., amino-3, the 5-bis-chloro-6-of chemical name: 4-fluoro-2-pyridine fluoroacetic acid, and its structural representation is as follows:
Fluroxypyr is pyridine fluoroacetic acid class weed killer herbicide.Having Uptake and translocation effect, be absorbed by plants very soon after medicine, there is the reaction of classical hormones class weed killer herbicide in sensitive crop, plant deformity, distortion.Temperature on the final effect of its weeding without impact, but affect its drug effect play speed.Generally when temperature is low, drug effect plays slowly, stops growing after can making dunsiekte, but dead immediately, and it is very fast dead that temperature raises rear plant.Use optimum period wider, can be used for the ground such as wheat, barley, corn, grape and orchard, pasture, forest farm and prevent and kill off broad leaved weed, as the weeds such as clearvers, field bindweed, shepherd's purse, ball sequence grasswort, chickweed, dayflower, Monochoria vaginalis, volume stem knotweed, Amaranthus retroflexus, black nightshade, common vetch, field bindweed, little japanese bearbind, weasel hemp nettle, pale persicaria, willow leaf thorn knotweed, alternanthera philoxeroides, humulus grass, elscholtiza, vetch, Descurainia sophia, kitchen garden.
Trefanocide (Trifluralin) is the phenyl amines weed killer herbicide developed by Dow AgroSciences.Chemical name: 2,6-dinitro-N, N-diη-propyl-4-5-trifluoromethylaniline.Its structural formula is as follows:
Trefanocide is processing soil treatment agent before selectivity bud, suppresses microtubule system.Trefanocide passes in soil layer process absorbed by weed seed at germinating growth, and mainly absorbed by with the bud scale of gramineous plants, the hypocotyl of broad leaved plant, cotyledon and young root also can absorb, but little to bud and the conduction of other organs after absorbing.After emerging, the stem of plant and leaf can not absorb.Enter in plant corpus the generation or transmission that affects hormone and cause its death.Mainly prevent and kill off the broad leaved weed of grassy weed and part small-sized seed, as careless in barnyard grass, lady's-grass, eleusine indica, moleplant seed, eragrostis cilianensisLink, annual bluegrass, bromegrass, hard grass, caput, amaranth, lamb's-quarters, kitchen garden, chickweed, Liao, pivot store, puncture vine etc.Lasting period is long.Volatile, easy photodissociation, aqueous solvent are minimum, not easily move in soil layer.
Current lawn herbicide limit by safety, herbicide spectrum is also limited, be used alone the generation that a kind of weed killer herbicide single dose can not control turf weed completely effectively, moreover some weed killer herbicide is due to water-soluble large or the field lasting period is oversize, consumption is excessive or dispenser is uneven all easily causes residual hazard.
Summary of the invention
The object of this invention is to provide a kind of mixed herbicide containing flazasulfuron, fluroxypyr and trefanocide.
Another object of the present invention is to provide the application of this weed killer herbicide in Kill weeds.
For achieving the above object, it is different that the present invention selects herbicide to compose, be made into mixture after the flazasulfuron of pluses and minuses complementation, fluroxypyr and trefanocide three kinds of suitable decrements of weed killer herbicide to use, so both expand herbicide spectrum, significantly improve herbicidal effect, it also avoid possibility lawn being produced to poisoning and residual hazard.The present invention specifically adopts following technical scheme:
Containing a mixed herbicide for flazasulfuron, fluroxypyr and trefanocide, this weed killer herbicide is with flazasulfuron, fluroxypyr and trefanocide for principle active component, and wherein, the mass ratio of flazasulfuron, fluroxypyr and trefanocide is 0.1 ~ 80:0.1 ~ 80:0.1 ~ 80.
In this mixed herbicide, the mass ratio of flazasulfuron, fluroxypyr and trefanocide is preferably 1 ~ 70:1 ~ 60:1 ~ 60.Mass ratio more preferably 1 ~ 5:1 ~ 60:1 ~ 25 of flazasulfuron, fluroxypyr and trefanocide.
In a kind of technical scheme, the mass ratio of flazasulfuron, fluroxypyr and trefanocide is preferably 1 ~ 5:1 ~ 5:1 ~ 25.
In another kind of technical scheme, the mass ratio of flazasulfuron, fluroxypyr and trefanocide is 1:1:18 or 3:2:25 or 5:4:1 or 3:60:2.
In mixed herbicide of the present invention, flazasulfuron, fluroxypyr and the mass percentage of trefanocide three in weed killer herbicide are 1 ~ 85%, and preferred mass percentage composition is 15 ~ 80%, and most preferably mass percentage is 10 ~ 65%.
In the ternary built preparation of flazasulfuron of the present invention, fluroxypyr and trefanocide, except the active ingredients such as flazasulfuron, fluroxypyr and trefanocide, the auxiliary agents such as conventional surfactants, thickener, solvent or the solid packing that pesticidal preparations allows can also be added and excipient becomes any one formulation that agricultural chemicals allows.Preferably be processed into suspending agent, wetting powder, water dispersion granule, missible oil, microcapsule formulations.
Weeding before the present invention can be applicable to lawn seedling, after seedling, is particularly applied in various grass family, sedge family and broad leaved weed in Weeds in Turf, Be very effective.
Herbicidal composition of the present invention has the following advantages:
1, Synergistic, activity of weeding are high.Flazasulfuron is inhibitor of acetolactate synthetase.Absorb mainly through root and stem and be sent to meristematic tissue by conducting tissue, suppress the biosynthesis of branched-chain amino acid (as serine, isoleucine).Fluroxypyr is inner sucting conduction type herbicide after seedling, makes sensitive crop occur the reaction of classical hormones class weed killer herbicide, plant deformity, distortion.Trefanocide mainly suppresses microtubule system, passes in soil layer process absorbed by weed seed at germinating growth.That is, herbicidal composition of the present invention can kill weeds by three kinds of different approaches, produces higher synergistic function, greatly can improve the removing activity of weed killer herbicide.
2, herbicidal spectrum is wide, and the lasting period is long.After flazasulfuron, fluroxypyr mix with trefanocide three, action compensating, herbicidal spectrum is wider, and flazasulfuron is mainly effective to broad leaved weed and sedge weed, and can spread pesticide-clay mixture or spraying; Fluroxypyr be pyridines weed killer herbicide be mainly used in preventing and kill off broad leaved weed to grass family and sedge weed invalid, foliage-spray.Trefanocide is processing soil treatment agent before selectivity bud, suppresses microtubule system.Mainly prevent and kill off the broad leaved weed of grassy weed and part small-sized seed.So weed killer herbicide of the present invention has the double action in leaf surface treatment and feud, extend the lasting period of medicament.So weed killer herbicide of the present invention has the double action in leaf surface treatment and feud, extend the lasting period of medicament.
3, Weed Resistance is delayed.Because weeds easily produce resistance to sulfonylurea herbicide, and containing pyridines weed killer herbicide fluroxypyr and phenyl amines herbicide trifluralin in weed killer herbicide of the present invention, enable the medicament anti-weeds except anti-sulfonylurea effectively, in addition, reduce resistance weed, extend the service life of medicament.
4, safety is high.Herbicidal composition of the present invention, is applied to Kill weeds, and it can various grass family, sedge family and broad leaved weed in Weeds in Turf, under the prerequisite that improve drug effect, has safety to lawn.
Therefore, mixed herbicide of the present invention can be applied in the weed killer herbicide preparing Kill weeds, particularly applies in various grass family, sedge family and broad leaved weed in Weeds in Turf.
Specific embodiments
Embodiment 1
Flazasulfuron 1%, fluroxypyr 1%, trefanocide 18%, alkylphenol polyoxyethylene 4%, the rare block compound 5% of polyoxyethylene polyoxy third, thickener 2%, vegetable oil to 100%, formulation method is conveniently mixed with the suspending agent that mass percentage is 20%.
Embodiment 2
Flazasulfuron 3%, fluroxypyr 2%, trefanocide 25%, NN0 (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, alkylphenol polyoxyethylene 5%, sodium lignin sulfonate to 100%, formulation method is conveniently mixed with the suspending agent that mass percentage is 30%.
Embodiment 3
Flazasulfuron 5%, fluroxypyr 4%, trefanocide 1%, sodium lignin sulfonate 7%, neopelex 5%, ammonium sulfate 5%, diatomite supplies 100%, and formulation method is conveniently mixed with the water dispersion granule that mass percentage is 10%.
Embodiment 4
Flazasulfuron 3%, fluroxypyr 60%, trefanocide 2%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 6%, sodium lignin sulfonate 5%, white carbon 9%, kaolin supplies 100%, and formulation method is conveniently mixed with the wetting powder that mass percentage is 65%.
Embodiment 5
Flazasulfuron 70%, fluroxypyr 5%, trefanocide 5%, NNO (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 5%, sodium lignin sulfonate 4%, white carbon 5%, kaolin supplies 100%, and formulation method is conveniently mixed with the wetting powder that mass percentage is 80%.
Embodiment 6
Flazasulfuron 10%, fluroxypyr 10%, trefanocide 60%, NN O (di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate) 9%, alkylphenol polyoxyethylene 5%, sodium lignin sulfonate to 100%, formulation method is conveniently mixed with the missible oil that mass percentage is 80%.
Embodiment 7
1), toxicity determination test
Utilize the preparation in embodiment 1 ~ 4, measure its co-toxicity coefficient to lawn common weed chickweed.
Test method: be seeded in respectively in the Disposable paper cup of 9cm by the seed of quantitative chickweed, sows 10 ~ 15 seeds in every glass, cultivates in illumination box, when chickweed 3 ~ 6 leaf phase, does composition spray to carry out spraying process in crawler type.Continue in greenhouse after process to cultivate, routine observation respectively processes the preventive effect to weeds, weighs the weeds fresh weight after each process after 30d, and the method proposed by nineteen sixties such as Sun Yunpei, calculates its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient is greater than 120, and show that three kinds of active principles have synergy, co-toxicity coefficient is greater than 100, and show that three kinds of active principles have synergistic effect, co-toxicity coefficient is less than 100, shows that three kinds of active principles have antagonism.Measurement result is as shown in table 1.
Table 1 toxicity measurement result
As can be seen from the above table, the co-toxicity coefficient after three kinds of active principles are composite is all greater than 120, illustrates that the present invention has significantly synergy and synergistic effect.
2), field control effectiveness test
Reagent agent:
4 kinds of ternary built weed killer herbicides in embodiment 1 ~ 4.
Contrast medicament:
25% flazasulfuron water dispersible granules (commercially available), 20% fluroxypyr missible oil (commercially available), 48% trifluralin ec (commercially available).
For examination lawn: Bermuda grass
Bermuda grass was 3 ~ 5 leaf phases, grew fine, robust plant, without other damage by disease and insect.
Prevent and kill off object:
The lawn gesture weeds such as rhizoma alismatis, nutgrass flatsedge, apple, pondweed, arrowhead, difformed galingale herb, chickweed, lady's-grass, green foxtail, barnyard grass, eleusine indica.
Test method:
According to the area of experimental plot, the good various medicament of precise, and after being watered dilution, utilize knapsack sprayer, carry out even spraying, the Fan spray head that sprinkler selection weed killer herbicide is special.During spraying, liquid be noted evenly to spray application in experimental plot, accomplish the phenomenon not having drain spray, many sprays.
After test, after medicine, 20d, 40d observe weeds death condition respectively, and the activity of weeding of more various medicament.In addition, after medicine, the growing state on lawn also in 1 ~ 15d, to be observed, whether have poisoning to investigate medicament to lawn.
Embodiments of the invention preparation Herbicidal Testing Trials effect sees the following form 2 (after medicine 20d) and table 3 (after medicine 40d)
Table 2 field control effectiveness test result (after medicine 20d)
Table 3 field control effectiveness test result (after medicine 40d)
As can be seen from table 2 and table 3, the present invention has significant preventive effect to grassy weed, sedge weed and broad leaved weed, significantly building performance, and the lasting period is long.
Table 4 medicament is to the security survey result on lawn
Growing fine in lawn in each process community, has no any medicine spot, illustrates that various medicament is all safe to lawn.
Claims (10)
1. the mixed herbicide containing flazasulfuron, fluroxypyr and trefanocide, it is characterized in that this weed killer herbicide with flazasulfuron, fluroxypyr and trefanocide for principle active component, the mass ratio of flazasulfuron, fluroxypyr and trefanocide is 0.1 ~ 80:0.1 ~ 80:0.1 ~ 80.
2. the mixed herbicide containing flazasulfuron, fluroxypyr and trefanocide according to claim 1, is characterized in that the mass ratio of flazasulfuron, fluroxypyr and trefanocide in this weed killer herbicide is 1 ~ 5:1 ~ 60:1 ~ 25.
3. the mixed herbicide containing flazasulfuron, fluroxypyr and trefanocide according to claim 2, is characterized in that the mass ratio of flazasulfuron, fluroxypyr and trefanocide in this weed killer herbicide is 1 ~ 5:1 ~ 5:1 ~ 25.
4. the mixed herbicide containing flazasulfuron, fluroxypyr and trefanocide according to claim 2, is characterized in that the mass ratio of flazasulfuron, fluroxypyr and trefanocide in this weed killer herbicide is 1:1:18 or 3:2:25 or 5:4:1 or 3:60:2.
5. the mixed herbicide containing flazasulfuron, fluroxypyr and trefanocide according to any one of Claims 1 to 4, is characterized in that flazasulfuron, fluroxypyr and the mass percentage of trefanocide three in weed killer herbicide are 1 ~ 85%.
6., according to the mixed herbicide containing flazasulfuron, fluroxypyr and trefanocide described in claim 5, it is characterized in that flazasulfuron, fluroxypyr and the mass percentage of trefanocide three in weed killer herbicide are 10 ~ 65%.
7. according to any one of Claims 1 to 4 containing the mixed herbicide of flazasulfuron, fluroxypyr and trefanocide, it is characterized in that this weed killer herbicide becomes any one formulation with flazasulfuron, fluroxypyr and trefanocide for auxiliary agent that principle active component and agricultural chemicals allow and excipient.
8., according to the mixed herbicide containing flazasulfuron, fluroxypyr and trefanocide described in claim 7, it is characterized in that described formulation is suspending agent, wetting powder, water dispersion granule, missible oil.
9. the application of mixed herbicide before the seedling of lawn and/or in postemergence weed control containing flazasulfuron, fluroxypyr and trefanocide according to any one of Claims 1 to 4.
10. the application of mixed herbicide in Weeds in Turf in various grass family, sedge family and broad leaved weed containing flazasulfuron, fluroxypyr and trefanocide according to any one of Claims 1 to 4.
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| CN101066056A (en) * | 2007-06-06 | 2007-11-07 | 赵邦斌 | Re-compounded herbicide of nicosulfuron and fluroxypyr |
| CN102326572A (en) * | 2011-06-18 | 2012-01-25 | 陕西韦尔奇作物保护有限公司 | Weeding composition containing rimsulfuron and fluroxypyr |
| CN103037695A (en) * | 2010-02-03 | 2013-04-10 | 陶氏益农公司 | Synergistic herbicidal composition containing penoxsulam and flazasulfuron |
| CN103732069A (en) * | 2011-06-24 | 2014-04-16 | 石原产业株式会社 | Herbicidal composition |
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2014
- 2014-11-30 CN CN201410715079.6A patent/CN104396991B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101066056A (en) * | 2007-06-06 | 2007-11-07 | 赵邦斌 | Re-compounded herbicide of nicosulfuron and fluroxypyr |
| CN103037695A (en) * | 2010-02-03 | 2013-04-10 | 陶氏益农公司 | Synergistic herbicidal composition containing penoxsulam and flazasulfuron |
| CN102326572A (en) * | 2011-06-18 | 2012-01-25 | 陕西韦尔奇作物保护有限公司 | Weeding composition containing rimsulfuron and fluroxypyr |
| CN103732069A (en) * | 2011-06-24 | 2014-04-16 | 石原产业株式会社 | Herbicidal composition |
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