CN106070230B - A kind of Herbicidal combinations and its application containing ring pyrrole fluorine humulone and tralkoxydim - Google Patents
A kind of Herbicidal combinations and its application containing ring pyrrole fluorine humulone and tralkoxydim Download PDFInfo
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- CN106070230B CN106070230B CN201610457441.3A CN201610457441A CN106070230B CN 106070230 B CN106070230 B CN 106070230B CN 201610457441 A CN201610457441 A CN 201610457441A CN 106070230 B CN106070230 B CN 106070230B
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- Prior art keywords
- tralkoxydim
- herbicidal combinations
- pyrrole fluorine
- fluorine humulone
- ring pyrrole
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/32—Ingredients for reducing the noxious effect of the active substances to organisms other than pests, e.g. toxicity reducing compositions, self-destructing compositions
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N35/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical
- A01N35/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical at least one of the bonds to hetero atoms is to nitrogen
- A01N35/10—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical at least one of the bonds to hetero atoms is to nitrogen containing a carbon-to-nitrogen double bond
Abstract
The present invention relates to technical field of pesticide, more particularly to a kind of using ring pyrrole fluorine humulone and tralkoxydim as the Herbicidal combinations of effective active composition and its application, the mass ratio of its middle ring pyrrole fluorine humulone and tralkoxydim is 1-100:1-100, it is preferred that 1-20:1-20, shared mass percent is 1%-90%, preferably 3%-85% to two kinds of effective active compositions in the composition.The Herbicidal combinations can effectively prevent and kill off the parts such as annual gramineous weeds and Descurainia sophia, the ox chickweed broadleaf weeds such as the common hard grass, Wang grass in farmland, amur foxtail, wild avena sativa, annual bluegrass, Alopecurus, have the significant effect of preventing and kill off to amur foxtail, Alopecurus, the hard grass, Wang grass etc. that ALS and ACCase inhibitor generates resistance.Herbicidal combinations provided by the invention not only can be reduced Pesticide use amount and reduce environmental pollution, but also can expand degrass spectrum, slow down the development of weeds drug resistance and drug resistance, have important economic value and social value.
Description
Technical field
The invention belongs to technical field of pesticide, and in particular to a kind of weeding group containing ring pyrrole fluorine humulone and tralkoxydim
Close object and its application.
Background technique
Wheat is the important cereal crops in China, solve the people have enough to eat and wear and sociopolitical stabilization in play to Guan Chong
The effect wanted, with the continuous improvement of agricultural production mechanization level, by the use of herbicide come control of weed in wheat field,
As step indispensable in agricultural production process instantly.But use single variety or single effect to long-term continuous high dose
The chemical herbicide of mode, the problems such as be easy to causeing weeds drug resistance and resistance evolution.The reasonable compounding or mixed of herbicidal compounds
It is to solve with the generation and development for having many advantages, such as to expand weeds spectrum, improve preventive effect, delay weeds drug resistance and drug resistance
One of maximally efficient method of the above problem.
Tralkoxydim is the cyclohexenone analog herbicide developed by ICI Company, and action target is acetyl-CoA carboxylase
(ACCase), the common broadleaf weeds of wheatland prevents and kill off gramineae weed amur foxtail, annual bluegrass, wild avena sativa without preventive effect
Effect is best, poor to the preventive effect of herba bromi japonici.In addition, the single long-time of such herbicide uses, so that amur foxtail, Japan see
The resistance weeds such as wheat ma, barnyard grass are more and more stronger, and preventive effect is also worse and worse.
Ring pyrrole fluorine humulone is HPPD class herbicide, by inhibiting the activity of HPPD that p-hydroxybenzene pyruvic acid (HPP) is made to be converted into urine
Nigrotic acid process is obstructed, and can not normally be synthesized so as to cause tocopherol and plastoquinone, is influenced carotenogenesis in target body, is led
Blade is caused to whiten.Ring pyrrole fluorine humulone solves the problems, such as the resistance and multiresistance of ALS and ACCase inhibitor, can effectively solve to resist
Gramineae weeds and the part broadleaf weeds such as amur foxtail, the Alopecurus of property and multiresistance.
The characteristic of coupling collar pyrrole fluorine humulone and tralkoxydim carries out scientific compounding, realizes that traditional herbicide is removed with novel
The advantageous combination of careless agent can expand degrass spectrum, reduce herbicide resistance development and Pesticide use amount, improve safety
Property, for pesticide field, related work person has great importance.
Summary of the invention
The purpose of the present invention is the advantages characteristics of coupling collar pyrrole fluorine humulone, are directed to tralkoxydim not in actual production
The technical issues of resistant weed, broad leaved weeds can be prevented and kill off, provides a kind of containing ring pyrrole fluorine humulone and tralkoxydim compounding
Herbicidal combinations, realize to common broadleaf weeds, gramineae weed and ALS and ACCase inhibitor generated anti-application is upper
The weeds of property are effectively prevented and kill off.
In order to achieve the above technical purposes, the present invention is achieved through the following technical solutions:
A kind of Herbicidal combinations and its application containing ring pyrrole fluorine humulone and tralkoxydim, it is characterised in that: including two
Kind effective active composition ring pyrrole fluorine humulone and tralkoxydim.
Wherein, the mass ratio of active constituent ring pyrrole fluorine humulone and tralkoxydim is 1-100:1-100, it is preferable that ring pyrrole
The mass ratio of fluorine humulone and tralkoxydim is 1-40:1-40, it is highly preferred that the mass ratio of ring pyrrole fluorine humulone and tralkoxydim
For 1-20:1-20, the quality defined by is than in range, active constituent ring pyrrole fluorine humulone and tralkoxydim mixture obtain association
With the technical effect of synergy.
The Herbicidal combinations middle ring pyrrole fluorine humulone and tralkoxydim account for the 1-90%, preferably 3- of total composition
85%.In general, Herbicidal combinations of the invention include that the active constituent of 1-90 parts by weight and the pesticide of 10-99 parts by weight routinely help
Agent, auxiliary agent refer to carrier, surfactant, the safener etc. for facilitating active constituent application.
The carrier is that pesticide industry often uses substance, such as clay, silicate, water, alcohols, silica, resin.
The surfactant may include emulsifier, dispersing agent or wetting agent, be that pesticide industry often uses substance, such as poly- third
The salt of olefin(e) acid, lignosulfonates, the salt of phenolsulfonic acid or naphthalene sulfonic acids, alkylphenol or aryl phenol polymer, sulphation
Fatty alcohol glycol ether, laruyl alcohol polyglycol ether acetal, sorbitol ester, lignin sulfite waste liquor and protein, denaturation
Albumen, polyvinylamine, polyvinylpyrrolidone and its copolymer.A kind of surfactant is needed to exist, at least to be conducive to live
The dispersion in water of property ingredient simultaneously is conducive to enable them to correctly be applied to plant.
The Herbicidal combinations contain various other components, as protecting colloid, adhesive, thickener, thixotropic agent,
Bleeding agent, stabilizer, chelating agent, dyestuff, colorant and polymer.
Composition of the invention can used before through dilution or directly by user.It, which is prepared, to be added by common
Work method preparation, i.e., after active material being mixed with liquid solvent or solid carrier, add surfactant such as dispersing agent, surely
Determine one or more of agent, wetting agent, adhesive, defoaming agent etc..
The specific preparation of the Herbicidal combinations be missible oil, microemulsion, suspoemulsion, aqueous emulsion, dispersible oil-suspending agent, can
Wet powder or water dispersible granules.
Comprising following constituent content when wettable powder is made in composition: ring pyrrole fluorine humulone 1~58%, tralkoxydim 1
~55%, dispersing agent 2~10%, wetting agent 1~15%, filler surplus.
Composition includes following constituent content when water dispersible granules are made: ring pyrrole fluorine humulone 1~60%, tralkoxydim 1
~60%, dispersing agent 1~15%, wetting agent 1~10%, disintegrating agent 1~10%, binder 1~10%, filler surplus.
Composition includes following constituent content when suspending agent is made: ring pyrrole fluorine humulone 0.5~50%, tralkoxydim 0.5
~50%, dispersing agent 1~10%, wetting agent 1~12%, defoaming agent 0.1~5%, binder 0.5~3%, antifreeze 0.5~
5%, deionized water adds to 100%.
Composition includes following constituent content when suspoemulsion is made: ring pyrrole fluorine humulone 0.5~55%, tralkoxydim 0.5
~50%, emulsifier 2~9%, dispersing agent 2~10%, defoaming agent 0.1~3%, thickener 0.2~3%, antifreeze 0.1~
10%, stabilizer 0.1~5%, water add to 100%.
Composition includes following constituent content when suspoemulsion is made: ring pyrrole fluorine humulone 0.5~55%, tralkoxydim 0.5
~50%, emulsifier 2~9%, dispersing agent 2~10%, defoaming agent 0.1~3%, thickener 0.2~3%, antifreeze 0.1~
10%, stabilizer 0.1~5%, water add to 100%.
Composition includes following constituent content when microemulsion is made: ring pyrrole fluorine humulone 0.1%~45%, tralkoxydim
0.1%~55%, emulsifier 1%~10%, solvent 2%~12%, antifreeze 1%~10%, stabilizer 0.5%~5%, go
Ionized water adds to 100%.
In further preferred form of implementation, the composition contains safener, and the safener is selected from pyrazoles solution grass
Ester, cloquintocetmexyl, isoxadifen, cyclopropyl-sulfonylamide, naphthalic anhydride, chlorine oxalene peace, R-28725, AD-67, CGA-154281,
CGA-43089, CGA-43089, Hoe-70542, benoxacor, flurazole, BAS-145138, MON-13900, quinoline,
One of 2,4-D, novel Antidote T and gibberellin are a variety of.
Herbicidal combinations of the invention can be applied on plant leaf blade to be processed by spraying method, pass through field medicine
Effect experiments have shown that, in the 3 leaf phase of wheat to period of seedling establishment, the weeds 1-4 leaf not equal phases, wheat has no phytotoxicity disease from being administered the maturity period
Shape, to wheat safety.Preventive effect 45 days of weeds reach 90% or more, and with the increase of dosage, preventive effect is obviously increased, and can control
The grass family such as the broadleaf weeds such as Descurainia sophia, ox chickweed in fabrication growth period and amur foxtail, annual bluegrass, barnyard grass, wild avena sativa are miscellaneous
Grass, while can effectively prevent and kill off Descurainia sophia, ox chickweed, amur foxtail, the Alopecurus that resistance is generated to ALS and ACCase inhibitor
Equal multiple drug resistances weeds, on second stubble crop without influence.
It is that the present invention realizes the utility model has the advantages that
1, Herbicidal combinations of the present invention compensate for tralkoxydim to broadleaf weeds such as Descurainia sophia, ox chickweeds without work
Defect expands the degrass spectrum of general weeds.
2, Herbicidal combinations of the present invention combine the advantages characteristic of tralkoxydim and ring pyrrole fluorine humulone, delay
Weeds drug resistance and drug resistance betide development, realize the synergistic effect of effective component, reduce Pesticide use amount, to environment
Safety is more preferable.
Specific embodiment
The present invention will be further described combined with specific embodiments below, but these examples are not intended to limit model of the invention
It encloses.Furthermore any change that those of ordinary skill in the related art are the present invention all will without departing from essence of the invention
Equivalence is fallen within the scope of the invention as defined in the claims.
1, embodiment
1.1) 40% ring pyrrole fluorine humulone tralkoxydim missible oil
Formula composition are as follows:+5% detergent alkylate of 10%+5% dimethyl sulfoxide of ring pyrrole fluorine+30% tralkoxydim of humulone
+ 10% phenethyl phenol polyethenoxy ether+100# aromatic solvent naphtha of sulfoacid calcium is supplied.
Process equipment: vacuum pump, batching kettle, storage tank.
Process: all materials are put into batching kettle, and stirring and dissolving after chemical examination is qualified, is transferred to fully transparent
Storage tank is filling.
1.2) 25% ring pyrrole fluorine humulone tralkoxydim suspending agent
Formula composition are as follows:+2% pull open powder of 5%+20% tralkoxydim+5%EO-PO block polyether of ring pyrrole fluorine humulone+
0.2%+5% glycerine of xanthan gum+water is supplied.
Process equipment: mixing kettle, colloid mill, sand mill, cutter etc..
Process: all materials are put into mixing kettle, and colloid mill is crossed after being stirred, and enter sand mill three-level later
It is sanded, is finally sheared in cutter uniformly, after chemical examination is qualified, it is filling to be transferred to storage tank.
1.3) oil-suspending agent can be dispersed in 10% ring pyrrole fluorine humulone tralkoxydim
Formula composition are as follows:+6% phenethyl phenol polyoxyethylene phosphonate of 3%+7% tralkoxydim of ring pyrrole fluorine humulone
+ 8%+1.5% organobentonite of castor oil polyoxyethylene ether of+6% polyoxyethylene carboxylate of triethanolamine salt+methyl oleate is mended
Foot.
Process equipment: mixing kettle, colloid mill, sand mill, cutter etc..
Process: all materials are put into mixing kettle, and colloid mill is crossed after being stirred, and enter sand mill three-level later
It is sanded, is finally sheared in cutter uniformly, after chemical examination is qualified, it is filling to be transferred to storage tank.
2, general weeds fresh weight inhibits test
2.1 experiment condition
2.1.1 for trying target
Alopecurus (Alopecurus japonicus), Wang grass (Beckmannia syzigachne), ox chickweed
(Malachium aquaticum) picks up from Shandong Province, proving ground, Tai'an wheat paddock.
Above-mentioned weeds are placed in enamel tray using pot-culture method culture with 180 х 140mm plastic nutrition bowls, built-in from agriculture
The topsoil for backing through and air-drying sieving is adopted in field, and soil moisture initial stage controls 20%, selects the uniform ruderal species of full seed
Son is impregnated 6 hours with 25 DEG C of warm water, and the vernalization in 28 DEG C of biochemical cultivation cases (dark) is uniform by the weed seed just to have showed money or valuables one carries unintentionally
It is placed in soil surface, then earthing 0.7cm.Chemicals treatment is placed on culture in controllable heliogreenhouse, periodically in enamel tray
A certain amount of water is added, keeps ground moistening.
2.1.2 condition of culture
It is carried out in controllable heliogreenhouse, 18~30 DEG C of temperature, natural lighting, relative humidity 57%~72%.
Soil types is loam, the content of organic matter 1.63%, pH=7.1, alkali-hydrolyzable nitrogen 84.3mg/kg, rapid available phosphorus
38.5mg/kg, available potassium 82.1mg/kg.
2.1.3 instrument and equipment
3WP-2000 type walking spray tower, Nanjing Agricultural Machinery Inst., Ministry of Agriculture.GA110 type a ten thousandth electronics day
Flat (Germany)；ZDR2000 intelligent data recorder (Hangzhou Ze great Instrument Ltd.)；SPX type Intelligent biochemistry incubator (Ningbo
Jiangnan instrument plant).
2.2 experimental design
2.2.1 reagent
Required tralkoxydim is commercially available raw medicine, and ring pyrrole fluorine humulone is that Qingdao resistant weed former clearly prevents and treats Co., Ltd's life
It produces.
Raw medicine is all made of dimethylformamide and makees solvent, is diluted with 0.1% emulsifier T-80 aqueous solution of content, current existing dilute
It releases.
2.2.2 test process
Dosage setting
It, should be from the action character of two kinds of medicaments when determining ring pyrrole fluorine humulone and tralkoxydim each group distribution ratio or content
And its virulence etc. is measured, it is also contemplated that the main of the formula uses purpose.This research is on the basis of prerun early period, if ring pyrrole fluorine
Humulone, tralkoxydim are applied alone and mix dosage and be shown in Table lattice respectively.Using without medicament, the water containing same solvent and emulsifier as
Blank control.
Test repeats
Every processing is repeated 4 times, 3 basins of each every processing, and every basin sows weed seed 20, totally 60 plants of every processing.
2.2.3 processing mode
It tests and shares medicine 1 time.To 1 heart stage of 2 leaf of weeds, thinning keeps 15 plants of weeds in every basin, and every processing retains 45 plants,
Culture is then proceeded to the ox chickweed 3-4 leaf phase, Alopecurus, Wang careless 1 heart stage of 3 leaf is handled.
2.3 test method
Using pot-culture method.Weeds culture is shown in 2.1, carries out, adopts referring to " farm-chemical indoor determination test rule herbicide "
With cauline leaf process method.
2.4 data survey and statistical analysis
2.4.1 investigation method
Using absolute number investigation method, the survival whole strain seedling of weeds is cut off along soil surface with blade, is weighed with assay balance
Weeds fresh weight.It is based on zero by fresh weight for dead weeds.
2.4.2 data statistic analysis
With Gowing method calculate it is each processing hybrid combining theoretical fresh weight inhibition rate (E0=X+Y-X*Y/100), then with
Actual measurement inhibiting rate (E) compares, and the mixed synergy type to weeds of both evaluations is made when E-E0 value is greater than 10% for synergy
With, be antagonism less than -10%, be addition between -10%~10%.And it is special according to practical preventive effect and herbicide
The factors such as the balance of point, formula determine optimum proportioning.
The fresh weight inhibition rate that X is ring pyrrole fluorine humulone dosage in formula when being P；The fresh weight suppression that Y is tralkoxydim dosage when being Q
Rate processed.
Table 1: the practical preventive effect and synergy effect of ring pyrrole fluorine humulone and tralkoxydim to weeds
As can be seen from Table 1, Herbicidal combinations provided by the invention are compounded with tralkoxydim, and front three can be improved
Methoxyphenone Dui Wang grass, ox chickweed, amur foxtail preventive effect, there is significant synergistic effect, and then can reduce between active constituent
The dosage of tralkoxydim.Meanwhile the Herbicidal combinations can effectively prevent and kill off the adiaphorous broad leaved weeds of tralkoxydim
Ox chickweed, ring pyrrole fluorine humulone expand degrass spectrum without effect Wang grass.
3, crop field field preventive effect
45d after medicine, to the fresh weight preventive effect of various weeds.
2 field demonstration preventive effect of table
As can be seen from Table 2, the present composition is good to weeds of wheat broad weed-killing spectrum, preventive effect, and dosage is few, can be with
Effectively solve the problems, such as that ring pyrrole fluorine humulone, tralkoxydim exclusive use degrass spectrum is narrow, preventive effect is low, dosage is high.
4, the preventive effect test of antagonism weeds
Test selects the Alopecurus (Alopecurus japonicus) for generating resistance to ALS inhibitor tribenuron-methyl to plant
Son generates ox chickweed (Malachium aquaticum) seed of resistance as test to ACCase inhibitor tralkoxydim
Object, above two seed is in acquisition in 2015 and Shandong Province, proving ground, Tai'an.
Test method:
Weed seed is unified into vernalization, by pretreated for trying weed seed uniform broadcasting in soil surface.Application is advanced
Seedling in the ranks, every basin final singling is to 30 plants, 4 basin test materials of each processing.Cauline leaf spraying treatment is carried out to weeds, investigates weeds aerial part
Fresh weight calculates weeds fresh weight preventive effect (fresh weight preventive effect is 4 duplicate average values in table), the statistical test feelings after test 45 days
Condition.
3 resistant weed preventing iron test result of table
As can be seen from Table 3, effective active composition ring pyrrole fluorine humulone of the present invention and ALS inhibitor tribenuron-methyl and
Cross resistance is not present in ACCase inhibitor tralkoxydim, and it is more that Herbicidal combinations of the present invention can effectively prevent and kill off wheat paddock
Resistant weed ox chickweed, Alopecurus.
Claims (7)
1. a kind of Herbicidal combinations containing ring pyrrole fluorine humulone and tralkoxydim, it is characterised in that: having including two kinds of weedings
Imitate active constituent ring pyrrole fluorine humulone and tralkoxydim；The mass ratio of effective active composition ring pyrrole fluorine humulone and tralkoxydim is
1: 0.625~10.
2. Herbicidal combinations according to claim 1, it is characterised in that: the ring pyrrole fluorine humulone and tralkoxydim account for group
Close the 1-90% of object total amount.
3. Herbicidal combinations according to claim 2, it is characterised in that: the ring pyrrole fluorine humulone and tralkoxydim account for group
Close the 3-85% of object total amount.
4. Herbicidal combinations according to claim 1, it is characterised in that: the specific preparation of the Herbicidal combinations is cream
Oil, suspending agent, microemulsion, suspoemulsion, aqueous emulsion, dispersible oil-suspending agent, wettable powder or water dispersible granules.
5. Herbicidal combinations according to claim 1, it is characterised in that: the composition further includes safener, the peace
Full agent be selected from mefenpyrdiethyl, cloquintocetmexyl, isoxadifen, cyclopropyl-sulfonylamide, naphthalic anhydride, chlorine oxalene peace, R-28725,
AD-67, CGA-154281, CGA-43089, Hoe-70542, benoxacor, flurazole, BAS-145138, MON-13900,2,4-
D, one of novel Antidote T and gibberellin or a variety of.
6. the application of Herbicidal combinations described in claim 1-5 any one, it is characterised in that: the composition is for preventing and treating agriculture
Field injurious weed.
7. the application of Herbicidal combinations according to claim 6, it is characterised in that: the farmland injurious weed be to ALS and
The multiresistance weeds that ACCase inhibitor class herbicide develops drug resistance.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0922032A1 (en) * | 1996-06-06 | 1999-06-16 | E.I. Du Pont De Nemours And Company | Herbicidal pyridinyl and pyrazolylphenyl ketones |
| CN105218449A (en) * | 2015-11-06 | 2016-01-06 | 青岛清原化合物有限公司 | Pyrazolone compound or its salt, preparation method, herbicidal composition and purposes |
| CN105638703A (en) * | 2016-03-15 | 2016-06-08 | 青岛清原化合物有限公司 | Application of weeding composition in barley fields |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0922032A1 (en) * | 1996-06-06 | 1999-06-16 | E.I. Du Pont De Nemours And Company | Herbicidal pyridinyl and pyrazolylphenyl ketones |
| CN105218449A (en) * | 2015-11-06 | 2016-01-06 | 青岛清原化合物有限公司 | Pyrazolone compound or its salt, preparation method, herbicidal composition and purposes |
| CN105638703A (en) * | 2016-03-15 | 2016-06-08 | 青岛清原化合物有限公司 | Application of weeding composition in barley fields |
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