CN103518731B - Herbicide composition containing pyrasulfotole and clodinafop acid - Google Patents
Herbicide composition containing pyrasulfotole and clodinafop acid Download PDFInfo
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- CN103518731B CN103518731B CN201310428150.8A CN201310428150A CN103518731B CN 103518731 B CN103518731 B CN 103518731B CN 201310428150 A CN201310428150 A CN 201310428150A CN 103518731 B CN103518731 B CN 103518731B
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- pyrasulfotole
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Abstract
The invention relates to the technical field of pesticides, and discloses a compound herbicide for a wheat field. The compound herbicide comprises two active components, namely pyrasulfotole and clodinafop acid, wherein the weight ratio of the pyrasulfotole to the clodinafop acid is (3:100) to (75:4); the pyrasulfotole and the clodinafop acid account for 0.5-85 mass percent of the compound herbicide. After the two active components, namely the pyrasulfotole and the clodinafop acid, are compounded, the weed control effect is improved by using the complementarity between the two active components; the defects of using the two active components independently is overcome; gramineous weeds of the wheat paddock can be prevented and killed; the broad-leaved weeds also can be prevented and killed; the compound herbicide has significant synergism. The herbicide composition has an obvious weeding effect and high safety to wheat, does not have influence on after-reap crops, and is an ideal herbicide.
Description
[technical field]
The present invention relates to a kind of herbicidal composition for preventing and treating weeds of wheat, being specifically related to a kind of weed killer herbicide for preventing and treating wheat paddock grassy weed and broad leaved weed, the binary herbicidal composition that it is is active component with Pyrasulfotole and alkynes oxalic acid.
[background technology]
Wheat is the second largest cereal crops of China, in national economy, occupy critical role.In Wheat Production process, the harm of disease pest and weed is very large, and often causing serious economic loss, the generally generation of wheatland crop smothering, is also global problem.According to statistics, due to Weed infestation, the general underproduction 10 ~ 15% of wheat, severe one reaches more than 20%.In recent years, along with Planter industry structure adjustment, cropping system changes, wheat weeds Plant population change and the succession of community are accelerated, some secondary weeds become main weeds gradually, and especially grassy weed is increased gradually, and some areas cornfield gramineae weed is as serious in harm such as bromegrass, amur foxtail, Triticum tauschii, production loss reaches about 20%, and indivedual wheatland is even up to more than 50%.Meanwhile, the pernicious broad leaved weed of wheatland also rises year by year, and clearvers, wartwort, corn gromwell, chickweed, ox chickweed, Veronica etc. spread in some areas.In the face of the change of weed community in wheat field, in the urgent need to the weed killer herbicide of grassy weed and pernicious broad leaved weed can be prevented and kill off.
Pyrasulfotole is the pyrazoles high activity interior suction herbicide after seedling of control cereal crop field broadleaf weed, it is HPPD inhibitor, absorb mainly through blade, conducted to young shoot and root by phloem and xylem, after enzyme and inhibitor intimate association, slowly inhibitory action is produced along with time lengthening, due to the suppression to HPPD, cause hindering p-hydroxyphenyl pyravate to the transformation of alcapton and the biosynthesis indirectly suppressing carotenoid, result causes plant meristematic tissue to produce alphosis, finally dead.Pyrasulfotole can effectively prevent and treat various broad leaved weed, such as chickweed, lamb's-quarters, piemarker, Solanum and amaranth fiber crops etc., but invalid to grassy weed.
Alkynes oxalic acid is acetyl-CoA carboxylase (ACCase) inhibitor, Uptake and translocation weed killer herbicide, by blade and the leaf sheath absorption of plant corpus, phloem conducts, and accumulates in the meristematic tissue of plant corpus, suppresses acetyl-CoA carboxylase (ACCase), fatty acid is synthesized stop, the growth division of cell can not normally be carried out, and membranous system etc., containing fat structural deterioration, finally cause Plant death.Alkynes oxalic acid is used for cereal crop and prevents and kill off grassy weed as amur foxtail, wild oat, annual bluegrass, green foxtail etc., invalid to broad leaved weed.In addition, alkynes oxalic acid is as single dose when wheat paddock uses, and under the prerequisite ensureing drug effect, consumption is relatively high, there is poisoning hidden danger.
Existing lot of documents reported the herbicidal composition and application that contain alkynes oxalic acid, such as Chinese patent CN102258027 discloses a kind of containing alkynes oxalic acid and the careless clever Synergistic herbicide compositions of despot, CN102027909 discloses a kind of Herbicidal combinations and the application thereof that contain Diflufenican and clodinafop-propargyl, CN101438709 discloses a kind of Herbicidal combinations containing alkynes oxalic acid and fluroxypyr, but has no about alkynes oxalic acid and the composite document of Pyrasulfotole are recorded.The present inventor is by a large amount of desk research and field trial, unexpected discovery alkynes oxalic acid and Pyrasulfotole composite, to weeds of wheat, there is excellent control efficiency, the effect shown and activity level exceed the superposition of each component, there is unforeseeable synergistic function, solve the limitation that above two weed killer herbicides exist in herbicide spectrum, preventive effect, safety, reach the object expanding herbicide spectrum, improve preventive effect, improve safety.
[summary of the invention]
Technical problem to be solved by this invention is, for the deficiency that prior art exists, provides a kind of technical scheme of compound herbicide composition for wheat field, and have wider herbicide spectrum and more excellent control efficiency, cost is low, easy to use, and to wheat safety.
Present invention employs following technical scheme: a kind of herbicidal composition, include compound (A) and compound (B) two kinds of active components of effective amount.Wherein, compound (A) is Pyrasulfotole, chemical name (5-hydroxyl-1,3-dimethyl-1H-pyrazoles-4 base) [2-(mesyl)-4-(trifluoromethyl) phenyl] ketone, and structural formula is:
Compound (B) is alkynes oxalic acid (Clodinafop-propargyl), other titles: clodinafop-propargyl, top, Mai Ji, chemical name: (R)-2-[4-(the chloro-3-of 5-fluoro-2-pyridine oxygen base) phenoxy group] propionic acid alkynes propyl ester, structural formula is:
Described activity of herbicidal compositions component cpd (A) and compound (B) weight ratio are Pyrasulfotole: alkynes oxalic acid=3:100 ~ 75:4, be preferably 3:20 ~ 15:4, the weight percentage of two active components in herbicidal composition is 0.5 ~ 85%.
According to different use needs or applying environment, herbicidal composition of the present invention can by pesticide producing mode conventional at present, and be prepared into the multi-form any formulation agriculturally allowed, herbicidal composition most preferred dosage form of the present invention is water dispersible granules.
Described herbicidal composition, wetting powder is by obtained through pulverizing to active ingredient mixture and filler, dispersant, wetting agent, adjuvant.Dispersant can be one or more in polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate; Wetting agent can be one or more in alkyl sulfate, alkylsulfonate, naphthalene sulfonate; Filler can be one or more in ammonium sulfate, urea, sucrose, glucose, diatomite, kaolin, white carbon, precipitated calcium carbonate, talcum powder, attapulgite, potter's clay.Required adjuvant can be added as required and comprise stabilizing agent, bleeding agent, spreader-sticker, foam inhibitor, anticaking agent, synergist etc.
Described herbicidal composition; water dispersible granules be by the auxiliary agents such as active ingredient mixture and filler, wetting agent, dispersant, disintegrant, stabilizing agent, binding agent after crushed with quantitative water; add in kneader simultaneously and combine; make the material of shaping; finally material is sent into Squeezinggranulator; carry out granulation, obtain water dispersible granules product by dry, screening.Wherein, dispersant can be one or more in polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate; Wetting agent can be one or more in alkyl sulfate, alkylsulfonate; Disintegrant can be one or more in ammonium sulfate, urea, sucrose, glucose; Binding agent can be one or more in diatomite, corn starch, PVA, carboxymethyl (ethyl) cellulose family; Filler can be one or more in diatomite, kaolin, white carbon, precipitated calcium carbonate, talcum powder, attapulgite, potter's clay.
Described herbicidal composition, oil suspending agent is by the high dispersive formed in non-water-medium that auxiliary agent disperses through high speed shear, sand mill sand milling obtains, stable suspension systems such as active ingredient mixture and solvent, cosolvent, dispersant, emulsifier, wetting agent, suspension stabilizer, antifreezing agent, thickeners.Dispersant can be polycarboxylate, lignosulfonates, naphthalene sulfonic acid-formaldehyde condensation product (dispersing agent NNO), TERSPERSE2425(alkyl naphthalene sulfonic acid salt) in one or more; Emulsifier can be Nongru-700 #(alkyl phenol formaldehyde resin polyoxyethylene ether), agriculture breast 2201, SPan-60#(Span60), Tween-60#(polyoxyethylene sorbitan stearate), agriculture breast 1601#(triphenoethyl benzene phenol polyethenoxy polyoxypropylene block polymer), one or more in TERSPERSE4894, TERSPERSE2500; Wetting agent can be one or more in alkylphenol polyoxyethylene formaldehyde condensation products sulphate, alkylphenol polyoxyethylene phosphate, phenethyl phenol polyethenoxy ether phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate, TERSPERSE2500; Thickener can be one or more in white carbon, polyvinyl alcohol, bentonite, aluminium-magnesium silicate; Antifreezing agent can be that ethylene glycol, propane diols, glycerine, urea, inorganic salts are as one or more in sodium chloride; Dispersion medium can be one or more in soybean oil, rapeseed oil, corn oil, methyl oleate, castor oil.
Described herbicidal composition, suspending agent take water as dispersion medium, active ingredient mixture, auxiliary agent obtained through soybean dietary fiber, can disperse with water with arbitrary proportion Homogeneous phase mixing.Auxiliary agent comprises wetting agent, dispersant, emulsifier, thickener, stabilizing agent, antifreezing agent, defoamer, pH adjusting agent etc., can add suitable auxiliary agent according to specific requirement.Dispersant can be polycarboxylate, lignosulfonates, naphthalene sulfonic acid-formaldehyde condensation product (dispersing agent NNO), TERSPERSE2425(alkyl naphthalene sulfonic acid salt) in one or more; Emulsifier can be Nongru-700 #(alkyl phenol formaldehyde resin polyoxyethylene ether), Span-60#(Span60), Tween-60#(polyoxyethylene sorbitan stearate), agriculture breast 1601#(triphenoethyl benzene phenol polyethenoxy polyoxypropylene block polymer) in one or more; Wetting agent can be one or more in alkylphenol polyoxyethylene formaldehyde condensation products sulphate, alkylphenol polyoxyethylene phosphate, phenethyl phenol polyethenoxy ether phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate, TERSPERSE2500; Thickener can be one or more in xanthans, polyvinyl alcohol, bentonite, aluminium-magnesium silicate; Defoamer can be silicone based defoamer; Antifreezing agent can be that ethylene glycol, propane diols, glycerine, urea, inorganic salts are as one or more in sodium chloride.
Herbicidal composition of the present invention is mainly used in wheat paddock management of weeds, as wild oat, amur foxtail, oat, perennial ryegrass, rough stalked blue grass, green foxtail, shepherd's purse, lamb's-quarters, piemarker, Solanum, amaranth fiber crops etc., but is not limited to above-mentioned weeds.
The present invention possesses following beneficial effect:
In herbicidal composition of the present invention, each active component is composite in certain ratio range, shows good synergistic effect, mixed composition comparatively single dose significantly improves herbicidal effect, and then reduce using dosage, while minimizing drug cost, decrease the influence degree to environment.
Expand herbicidal spectrum, this herbicidal composition adopts Pyrasulfotole and alkynes oxalic acid mixture to use, because this two components mechanism of action is different, make a kind of medicament can prevent and treat wheat paddock broad leaved weed and grassy weed simultaneously, and the preventive effect phase can be extended, a dispenser can control the weeds in wheat paddock whole breeding time.
In addition, herbicidal composition of the present invention is low to crop, toxicity to man and livestock, can kill except multiple weeds, delaying the generation of herbicide resistance, improve total preventive effect, and reducing application cost when not injuring crop, safer to crop.
[embodiment]
Below in conjunction with embodiment, the present invention will be further described, those skilled in the art can use for reference present disclosure, and suitable improving technique parameter realizes, and special needs to be pointed out is, all similar replacements and change are apparent concerning those skilled in the art, are all deemed to be included within the present invention.Product of the present invention and application be described by preferred embodiment, related personnel obviously can not depart from content of the present invention, spirit and scope methods and applications as herein described are changed or suitably change with combination realize and apply this technological invention.
Example of formulations 1:
Take 15%Pyrasulfotole, 65% alkynes oxalic acid, 2% lauryl sodium sulfate, 3% calcium lignosulfonate, 3% dispersant NNO(naphthalene sulfonic acid-formaldehyde condensation product), kaolin adds to 100% weight portion.The frequent regulation of above-mentioned raw materials, for the method for wetting powder and forward slip value, air-flow crushing, rear mixing, obtains described 80%Pyrasulfotole alkynes oxalic acid wetting powder.
Example of formulations 2:
Take 22%Pyrasulfotole, 43% alkynes oxalic acid, 2% lauryl sodium sulfate, 2% calcium lignosulfonate, 4% polycarboxylate, kaolin adds to 100% weight portion.The frequent regulation of above-mentioned raw materials, for the method for wetting powder and forward slip value, air-flow crushing, rear mixing, obtains described 65%Pyrasulfotole alkynes oxalic acid wetting powder.
Example of formulations 3:
Take 14%Pyrasulfotole, 21% alkynes oxalic acid, 1% lauryl sodium sulfate, 3% polycarboxylate, 2% alkylnaphthalene sulfonate, precipitated calcium carbonate add to 100% weight portion.Namely the frequent regulation of above-mentioned raw materials obtains described 35%Pyrasulfotole alkynes oxalic acid water dispersible granules for the method for water dispersible granules and forward slip value, air-flow crushing, rear mixing, add water kneading, granulation, screening.
Example of formulations 4:
Take 20%Pyrasulfotole, 20% alkynes oxalic acid, 5%TERSPERSE2700,3% Negel formaldehyde condensation products, 4% nekal, 4% lauryl sodium sulfate, 3% White Carbon black, 5% ammonium sulfate, diatomite adds to 100% weight portion.Namely the method for frequent for above-mentioned raw materials regulation water intaking dispersible granule is mixed, ultra micro air-flow crushing, kneading, granulation, screening, described 40%Pyrasulfotole alkynes oxalic acid water dispersible granules.
Example of formulations 5:
Take 7%Pyrasulfotole, 8% alkynes oxalic acid, 4% triphen ethyl phenol APEO, 1% alkylphenol polyoxyethylene, 0.2% white carbon, methyl oleate add to 100% weight portion.The frequent regulation of above-mentioned raw materials is pulverized for the method for oil-suspending agent and high speed shear dispersion, sand milling, is in harmonious proportion, and obtains described 15%Pyrasulfotole alkynes oxalic acid oil suspending agent.
Example of formulations 6:
Take 4%Pyrasulfotole, 6% alkynes oxalic acid, 3%TERSPERSE2425,3%Span-60,3%Twin-60,8%BY-110,1%TERSPERSE2500,0.5% white carbon, 5% propane diols, 20% epoxidized soybean oil, methyl oleate add to 100% weight portion.The frequent regulation of above-mentioned raw materials is pulverized for the method for oil-suspending agent and high speed shear dispersion, sand milling, is in harmonious proportion, and obtains described 10%Pyrasulfotole alkynes oxalic acid oil suspending agent.
Example of formulations 7:
Take 2%Pyrasulfotole, 3% alkynes oxalic acid, 5% alkylphenol polyoxyethylene phosphate, 3% alkylsulfonate, 2% ethylene glycol, deionized water add to 100% weight portion.The frequent regulation of above-mentioned raw materials is pulverized for the method for suspending agent and high speed shear dispersion, sand milling, is in harmonious proportion, and obtains described 5%Pyrasulfotole alkynes oxalic acid suspending agent.
Raw survey embodiment 1:
Eliminating weed in wheat field indoor measurement is tested
In order to prevent and treat wheat paddock broad leaved weed in agricultural production and grassy weed, inventor Pyrasulfotole and alkynes oxalic acid two kinds of compositions have carried out indoor virulence testing research, concrete grammar is: indoor pot method carries out cauline leaf process, and experiment is with reference to " farm-chemical indoor determination experiment criterion weed killer herbicide Part IV ".
(1) reagent agent
Pyrasulfotole
Alkynes oxalic acid
(2) for examination weeds
Lamb's-quarters, Descurainia sophia, amur foxtail, firmly grass
Cultivation for examination weeds adopts indoor pot cultivation.By 11 × 12cm plastic basin, will the wheat paddock soil of weed killer herbicide do not used to adopt back, air-dry, sieve after fill basin, quantitative 4/5 place of dry ground in basin, P in soil H value 7.1, the content of organic matter 1.2%.Adopt infiltrating irrigation mode bottom basin alms bowl, make soil completely moistening.The lamb's-quarters of field collection last year, Descurainia sophia, amur foxtail, hard grass seed gibberellin are soaked 24h, with dark gauze shading after clear water is clean, is placed on and is covered with in the culture dish of gauze, carry out vernalization with water is moistening, sow after waiting seed to show money or valuables one carries unintentionally.Lamb's-quarters, Descurainia sophia, amur foxtail, each about 50 the even program requests of hard grass seed are at soil surface, and then blinding 0.5 ~ 1cm is placed on cellar culture in greenhouse, with infiltrating irrigation mode moisturizing bottom basin alms bowl in incubation, to keep ground moistening.After weeds emerge, amur foxtail, hard careless number are decided to be 20 strains, it is 10 strains that lamb's-quarters, Descurainia sophia determine strain.
(3) test process
46 process are established in this test altogether, often process 4 times and repeat, wherein Pyrasulfotole establish 10,17.5,25,32.5,40g (a.i.)/hm
25 dosage process, alkynes oxalic acid establishes 12,21,30,39,48g (a.i.)/hm
25 dosage process.Pyrasulfotole+ alkynes oxalic acid establishes 7 assembly than process: 3:500,3:100,3:20,3:4,15:4,75:4,375:4, dosage is 10,17.5,25,32.5,40g (a.i.)/hm
2, separately establish 1 clear water contrast.
(4) test method
The dispenser time limit fixes on when weeds grew to for 3 ~ 4 leaf phase carries out cauline leaf spraying process, strain determined by every basin amur foxtail and hard grass is 20 strains (it is 10 strains that lamb's-quarters and Descurainia sophia determine strain), each 3 basins, repeat 4 times, culturing pot is placed in tower and sprays medicine (ASS-4 type pesticide spraying system, DG8003 shower nozzle, atomisation pressure 2.75MPA, spouting liquid 30Kg/ mu), continue after dispenser to be placed in greenhouse to cultivate and observe.
(5) data survey and statistical analysis
Observe after process and record the careless growth conditions of examination, processing after 30 days, investigation weed control efficacy, records the strain number of weeds respectively, calculates weeds strain preventive effect.By the linear regression analysis between the probability value of preventive effect and the logarithm value of series concentration, calculate ED50 and the correlation coefficient of each process, evaluate the biologically active of each process to weeds, the abundant method of Sun Yun is used to calculate the co-toxicity coefficient of different agents proportioning, evaluate the synergy situation of different ratio, determine Pyrasulfotole and alkynes oxalic acid optimum activity ratio.
Computing formula:
In formula: E---strain preventive effect;
C---contrast weeds acrial part weeds strain number;
T---process weeds acrial part weeds strain number.
In formula: ATI---mixture actual measurement toxicity index;
The ED of S---standard herbicide
50, unit is a gram per hectare (g (a.i.)/hm
2);
The ED of M---mixture
50, unit is a gram per hectare (g (a.i.)/hm
2).
TTI=TI
A×P
A+TI
B×P
B……………………………………………（3）
In formula: TTI---the theoretical toxicity index of mixture;
TI
a---A medicament toxicity index;
P
a---the percentage composition of A medicament in mixture, unit is percentage (%);
TI
b---B medicament toxicity index;
P
b---the percentage composition of B medicament in mixture, unit is percentage (%).
In formula: CTC---co-toxicity coefficient;
ATI---mixture actual measurement toxicity index;
The theoretical toxicity index of TTI---mixture.
Co-toxicity coefficient CTC >=120 of built agent show as synergistic effect; CTC≤80 show as antagonism; 80<CTC<120 shows as summation action.
(6) result of the test: in table 1 ~ 4
Table 1Pyrasulfotole and alkynes oxalic acid mixture control weeds of wheat lamb's-quarters virulence
Table 2Pyrasulfotole and alkynes oxalic acid mixture control weeds of wheat Descurainia sophia virulence
Table 3Pyrasulfotole and alkynes oxalic acid mixture control weeds of wheat amur foxtail virulence
Table 4Pyrasulfotole and the hard careless virulence of alkynes oxalic acid mixture control weeds of wheat
Toxicity Determination result shows, Pyrasulfotole and alkynes oxalic acid are mixed in the scope of weight ratio 3:500 ~ 375:4 shows as addition or synergistic effect to weeds, mixed in the scope of weight ratio 3:100 ~ 75:4 have good synergistic effect, mixed in the scope of weight ratio 3:20 ~ 15:4 have obvious synergistic effect, expands control of weeds spectrum.
Raw survey embodiment 2:
Eliminating weed in wheat field field control effectiveness test
1, test process
8 process are established in test, often process 4 times and repeat, totally 32 process communities, and often process plot area 20 square metres, random district group arranges.(1) ~ (5) 35%Pyrasulfotole alkynes oxalic acid water dispersible granules (Shandong Binnong Technology Co., Ltd.'s production) is reagent agent, and 30%Pyrasulfotole water dispersible granules and 15% alkynes oxalic acid wetting powder are contrast medicament.Every mu is watered 30 kilograms, adopts 552 third type sprayers (0.7mm aperture) even spraying.Field main weeds has clearvers, lamb's-quarters, Descurainia sophia, deceives grass, amur foxtail, hard grass etc.
2, pilot project and method
(1) safety: after dispenser, the situation of growing of investigation wheat, evaluates reagent agent to the safety of wheat.
(2) herbicidal effect: every community gets 4 points at random, often some investigation 1/4 square metre, after medicine 30 days, record weeds strain number, calculated preventive effect.
(3) result of the test
Safety:
Dispenser " Invest, Then Investigate ", there is obvious poisoning, wheat leaf blade yellow, growth retardation in 15% alkynes oxalic acid wetting powder treatment region wheat, plant is obviously short and small.
(1) ~ (5) 35%Pyrasulfotole alkynes oxalic acid water dispersible granules treatment region Plant Height in Wheat, Ye Se and blank district are basically identical, show that reagent agent (1) ~ (5) 35%Pyrasulfotole alkynes oxalic acid water dispersible granules is all to wheat safety.
Herbicidal effect: in table 5
Note: (1) 35%Pyrasulfotole: alkynes oxalic acid water dispersible granules (3:100)
(2) 35%Pyrasulfotole: alkynes oxalic acid water dispersible granules (3:20)
(3) 35%Pyrasulfotole: alkynes oxalic acid water dispersible granules (3:4)
(4) 35%Pyrasulfotole: alkynes oxalic acid water dispersible granules (15:4)
(5) 35%Pyrasulfotole: alkynes oxalic acid water dispersible granules (75:4)
(6) 30%Pyrasulfotole water dispersible granules
(7) 15% alkynes oxalic acid wetting powders
(8) clear water contrast
As shown in Table 5, the Pyrasulfotole alkynes oxalic acid water dispersible granules of different ratio between 84.56 ~ 96.34%, is all better than contrast medicament 30%Pyrasulfotole water dispersible granules and 15% alkynes oxalic acid wetting powder (weeds integrated control effect is respectively 57.92% and 60.13%) to common weed integrated control effect.All remarkable to wheat paddock common weed preventive effect when wherein Pyrasulfotole and alkynes oxalic acid weight ratio are 3:20 ~ 15:4, weeds integrated control effect all more than 92%, and when Pyrasulfotole and alkynes oxalic acid weight ratio are 3:4 preventive effect especially up to more than 96%.Illustrate thus, Pyrasulfotole and alkynes oxalic acid weight ratio are within the scope of 3:100 ~ 75:4, the grassy weed common to wheat paddock and broad leaved weed have preventive effect, substantially can control the crop smothering in wheat paddock whole vegetative period, and this herbicidal composition is to wheat safety.
In sum, instant component is reasonable, and preventive effect is better than each component and uses separately, all has good preventive effect to annual weed and multiple broad leaved weed, expands control of weeds spectrum, reaches the object expanding herbicide spectrum simultaneously and improve safety.
Claims (5)
1. a herbicidal composition, it is characterized in that this herbicidal composition is made up of (A) and (B) two kinds of active components, wherein active component (A) is sulphonyl grass pyrazoles, active component (B) is alkynes oxalic acid, and two active component weight ratios are: (A) sulphonyl grass pyrazoles: (B) alkynes oxalic acid=3:100-75:4.
2. herbicidal composition according to claim 1, is characterized in that the weight ratio of active component (A) and (B) is: (A) sulphonyl grass pyrazoles: (B) alkynes oxalic acid=3:20-15:4.
3. herbicidal composition according to claim 1 and 2, is characterized in that the mass percent of active component in herbicidal composition is 0.5-85%.
4. herbicidal composition according to claim 1, is characterized in that said composition formulation can be any one formulation agriculturally allowed.
5. herbicidal composition according to claim 1, is characterized in that said composition is for eliminating weed in wheat field.
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| CN106342865A (en) * | 2016-08-30 | 2017-01-25 | 山东滨农科技有限公司 | Herbicide composite for wheat paddocks |
| CN106359434A (en) * | 2016-08-30 | 2017-02-01 | 山东滨农科技有限公司 | Herbicide composition containing bensulfuron methyl |
| CN106332897A (en) * | 2016-08-30 | 2017-01-18 | 山东滨农科技有限公司 | Tribenuron-methyl containing herbicide composition |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101808520A (en) * | 2007-08-27 | 2010-08-18 | 陶氏益农公司 | Synergistic herbicidal composition containing certain pyridine or pyrimidine carboxylic acids and certain cereal and rice herbicides |
| CN102574809A (en) * | 2009-07-29 | 2012-07-11 | 拜尔农作物科学股份公司 | 4-(3-alkylthiobenzoyl)pyrazoles and use thereof as herbicides |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101808520A (en) * | 2007-08-27 | 2010-08-18 | 陶氏益农公司 | Synergistic herbicidal composition containing certain pyridine or pyrimidine carboxylic acids and certain cereal and rice herbicides |
| CN102574809A (en) * | 2009-07-29 | 2012-07-11 | 拜尔农作物科学股份公司 | 4-(3-alkylthiobenzoyl)pyrazoles and use thereof as herbicides |
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