CN103518746A - Weeding composition for preventing and killing weeds of wheat paddock - Google Patents
Weeding composition for preventing and killing weeds of wheat paddock Download PDFInfo
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- CN103518746A CN103518746A CN201310416695.7A CN201310416695A CN103518746A CN 103518746 A CN103518746 A CN 103518746A CN 201310416695 A CN201310416695 A CN 201310416695A CN 103518746 A CN103518746 A CN 103518746A
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- florasulam
- clodinafop
- propargyl
- weeds
- weeding composition
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Abstract
The invention discloses a weeding composition for preventing and killing weeds of a wheat paddock. The weeding composition comprises the following active ingredients in percentage by weight: 1 to 20 percent of florasulam, 1 to 20 percent of pyroxsulam and 1 to 50 percent of clodinafop-propargyl, and the balance of pesticide adjuvant. The weeding composition disclosed by the invention can be prepared into a suspending agent, wettable powder and water dispersible granules according to the requirements of actual application, and can be used for preventing and killing the weeds of the wheat paddock; the pesticide effect is much better than that of a corresponding single dosage; a herbicide controlling spectrum is expanded; meanwhile, the dosage is reduced; generation of the weed resistance is delayed; the pollution on the environment is reduced.
Description
Technical field
The present invention relates to agricultural chemicals Herbicidal combinations and application thereof, specifically a kind ofly take florasulam, pyridine sulphur grass amine and clodinafop-propargyl as the composite ternary complex of active ingredient, be applied to the control of weeds of wheat.
Background technology
Chemical method weeding is in agricultural production, to control one of Main Means of farmland weed.In recent years, due to the large-area independent use of some weed killer herbicide kinds, caused a lot of weeds to produce pesticide resistance.Meanwhile, while occurring due to weeds, grass is complicated, of a great variety mutually, and single variety use can not effectively solve farmland weed causes harm, and all can show defect in a certain respect.And the use that is mixed of variety classes weed killer herbicide, have herbicidal spectrum wide, promote preventive effect, delay the plurality of advantages such as weeds develop immunity to drugs, save time, saving of labor.
Florasulam (florasulam): belong to triazolopyrimidine sulfonamides herbicide, there is interior suction conduction, can conduct to weeds complete stool, thereby herbicide is thorough, can not recur.Efficacy stability at low temperatures, even still can guarantee to stablize drug effect in the time of 2 ℃, this point is that other weed killer herbicides are incomparable.Be mainly used in controlling broad leaved weed in wheat field, as clearvers, corn gromwell etc.
Pyridine sulphur grass amine (pyroxsulam): belong to triazolopyrimidine sulfonamides herbicide, there is interior suction conduction, broad weed-killing spectrum, activity of weeding is high, and drug action is fast.Be mainly used in preventing and kill off wheat paddock grassy weed and broad leaved weed, as bromegrass, amur foxtail, hard grass, Veronica, Carolina Cranesbill Herb etc.
Clodinafop-propargyl (Clodinafop-propargyl): belong to fragrant phenoxy phenoxy propionic acid weed killer herbicide, the mechanism of action is the inhibitor of acetyl coenzyme A hydroxylase.The grassy weeds such as main control wheat paddock amur foxtail, tall oat grass, perennial ryegrass, rough stalked blue grass, green foxtail.
By the screening of different pesticide species compounded formulas, select outstanding formula and can effectively improve the actual control efficiency to disease, worm, crop smothering, reduce dosage, reduce costs, delaying disease, worm, the drug-fast generation of crop smothering, is the important means of the upper disease of agricultural, worm, the crop smothering comprehensive regulation.The inventor conducts in-depth research the compounded formula screening of florasulam, pyridine sulphur grass amine and clodinafop-propargyl, discovery florasulam, pyridine sulphur grass amine and clodinafop-propargyl are carried out ternary built, in certain compound proportion scope, wheat weeds is had to synergistic effect, after further study, completed the present invention.
Not yet find at present the relevant report of florasulam, pyridine sulphur grass amine and clodinafop-propargyl ternary built.
Summary of the invention
When the object of the invention is to solve prior art Pesticides single dose and using separately to wheat weeds easily develops immunity to drugs and actual control efficiency is poor problem, a kind of efficient, wide spectrum, economy, safety are provided, are conducive to the Herbicidal combinations of the wheat weeds comprehensive regulation.
Technical scheme of the present invention is: the invention provides a kind of Herbicidal combinations, active ingredient florasulam, pyridine sulphur grass amine and clodinafop-propargyl and suitable agricultural chemicals auxiliary element, consist of.The percentage by weight of florasulam in composition is 1%～20%, and the percentage by weight of pyridine sulphur grass amine in composition is 1%～20%, and the percentage by weight of clodinafop-propargyl in composition is 1%～50%, and all the other are insecticides adjuvant.
Described Herbicidal combinations can, according to well known to a person skilled in the art method, can be processed into the application forms using in the applicable agricultural productions such as suspending agent, wetting powder and water-dispersible granules.
When described Herbicidal combinations is processed into suspending agent, the weight fraction of each component is: florasulam 0.5～20%, pyridine sulphur grass amine 0.5～20%, clodinafop-propargyl 1～30%, dispersant 3～15%, wetting agent 2～10%, emulsifier 0.2～5%, antifreezing agent 0.2～5%, thickener 0.1～2%, defoamer 0.1～2%, deionized water adds to 100%.
Above-mentioned formula is mixed in proportion, and in clipper, shear-mixed is even, after then grinding with skin grinder, makes suspending agent formulation of the present invention.
When described Herbicidal combinations is processed into wetting powder, the weight fraction of each component is: florasulam 1～30%, pyridine sulphur grass amine 1～30%, clodinafop-propargyl 1～50%, dispersant 5～20%, wetting agent 3～20%, filler adds to 100%.
Above-mentioned formula is entered in blender after coarse crushing and mixed in proportion, then after air-flow crushing, make wetting powder formulation of the present invention.
When described Herbicidal combinations is processed into water dispersible granules, the weight fraction of each component is: florasulam 1～30%, pyridine sulphur grass amine 1～30%, clodinafop-propargyl 1～60%, dispersant 5～20%, wetting agent 2～10%, disintegrant 1～10%, filler adds to 100%.
By above-mentioned formula, dry pulverization process, granulation, dry, screening make dosage form of water dispersible granule of the present invention in proportion.
Described emulsifier can be one or more in alkyl benzene calcium sulfonate, alkylphenol polyoxyethylene phosphate, alkylphenol polyoxyethylene phosphate, diphenyl phenol polyethenoxy polyethenoxy ether, styrenated phenol APEO, diphenyl phenol polyethenoxy polyoxy formaldehyde condensation products, fatty alcohol-polyoxyethylene ether, polyoxyethylene carboxylate, nonyl phenol polyoxyethylene polyoxypropylene ether etc.
Described wetting agent can be one or more in lauryl sodium sulfate, dodecyl sodium sulfate, Nekal BX, the withered powder of tea, spaonin powder, soapberry powder etc.
Described disintegrant can be one or more in sodium bicarbonate, magnesium chloride, aluminium chloride, sodium chloride, urea, ammonium sulfate, bentonite etc.
Described dispersant can be one or more in sodium methylene bis-naphthalene sulfonate, sodium lignin sulfonate, fatty acid amide N methyl taurine sodium salt, alkylphenol polyoxyethylene sulphate, polycarboxylate, lignosulfite, fatty acid ester sulphate, alkylphenol polyoxyethylene etc.
Described thickener can be one or more in polyvinyl alcohol, polyvinyl acetate, xanthans, gelatin, gum Arabic, aluminium-magnesium silicate, phenolic resins, methylcellulose, sodium alginate etc.
Described defoamer can be one or more in fatty acid compound, copper silicon compounds, silicone oil etc.
Described antifreezing agent can be one or more in glycerine, propane diols, diethylene glycol (DEG), urea etc.
Described filler can be one or more in precipitated calcium carbonate, potter's clay, kaolin, diatomite, bentonite, white carbon, clay.
Compared with prior art, the invention has the advantages that:
1, florasulam, pyridine sulphur grass amine and clodinafop-propargyl ternary built have synergistic function, than the independent use of single dose, have obviously improved the control efficiency to wheat weeds.
2, florasulam, pyridine sulphur grass amine and three kinds of active ingredients of clodinafop-propargyl are composite, have expanded herbicide spectrum, and the most of grassy weed of wheatland and broad leaved weed are all had to comparatively desirable control efficiency.
3, florasulam, pyridine sulphur grass amine and three kinds of active ingredients of clodinafop-propargyl are composite, have reduced agricultural chemicals and have made
Consumption, reduced use cost, reduced resistance risk, Environmental compatibility is good.
Embodiment
In order to understand better essence of the present invention, below in conjunction with embodiment, content of the present invention is described further, but can not be considered as limitation of the present invention.
(1) indoor biological activity determination embodiment.
Reagent agent: the former medicine of 97% florasulam, the 96.5% pyridine sulphur grass former medicine of amine and the former medicine of 95% clodinafop-propargyl.
For trying target: amur foxtail (Alopecurus aequalis Sobol.).
Shepherd's purse (Capsella bursa-pastoris (L.) Medic).
Test method: with reference to " the agricultural industry criteria NY/T1155.7-2006 of People's Republic of China (PRC) farm-chemical indoor determination test rule weed killer herbicide the 7th part: the synergy being mixed is measured ".First by the amur foxtail being gathered by field, shepherd's purse seed potted plant growth, be cultured to for 3 leaf phases standby; Then each treatment agent is carried out to cauline leaf spraying to standby test target and process, want evenly thoughtful during spraying, 4 repetitions are established in each processing, and establish blank and process.After spraying finishes, plant is moved in greenhouse and normally cultivated, within after medicine 15 days, cut off each and process green portion on the ground, adopt scales/electronic balance weighing, calculate actual survival rate E and theoretical survival rate E
0, finally with the check of Colby method, evaluate the mixed synergy to weeds of three.
Actual survival rate E (%)=(treatment region weeds fresh weight/check plot weeds fresh weight) * 100.
Theoretical survival rate E
0=A * B * C/100
(n-1)
In formula, A, B, C represent respectively the actual survival rate of three kinds of single doses, and n is mixture herbicide kind quantity.Work as E
0during-E > 10%, illustrate and produce synergistic effect, work as E
0during-E <-10%, illustrate and produce antagonism, work as E
0-E between ± 10% time, illustrates and produces addition.
Table 1, the Toxicity Determination of each chemicals treatment to amur foxtail.
From the result of the test of table 1, can find out florasulam, pyridine sulphur grass amine and each E processing of clodinafop-propargyl ternary built
0-E (%) is greater than 10% substantially, and illustrating that three is composite has synergistic function to amur foxtail.
Table 2, the Toxicity Determination of each chemicals treatment to shepherd's purse.
As can be seen from Table 2, florasulam, pyridine sulphur grass amine and each E processing of clodinafop-propargyl ternary built
0-E (%) is greater than 10% substantially, and illustrating that three is composite has synergistic function to shepherd's purse.
(2) field efficacy checking embodiment.
Test selects wild oat, amur foxtail, broadcast the more wheat paddocks of annual weed such as ma wormwood artemisia, shepherd's purse, clearvers, chickweed carries out.8 processing are established in test altogether, 3 repetitions are established in every processing, processing 1 is 10% florasulam pyridine sulphur grass amine clodinafop-propargyl suspending agent (1.5:2.5:6), processing 2 is 5% florasulam pyridine sulphur grass amine suspending agent (1:4), processing 3 is 15% florasulam clodinafop-propargyl suspending agent (1:14), processing 4 is 15% pyridine sulphur grass amine clodinafop-propargyl suspending agent (2:13), processing 5 is 5% florasulam suspending agent, processing 6 is 7.5% pyridine sulphur grass amine water dispersible granules, processing 7 is 15% clodinafop-propargyl wetting powder, process 8 for contrast (not weeding of not dispenser), after medicine, 20 days statistics are respectively processed number of weeds amount and calculate preventive effect.
Table 3,10% florasulam pyridine sulphur grass amine clodinafop-propargyl suspending agent are prevented and kill off wheat paddock annual weed field control effectiveness test result.
By table 3 result of the test, can be found out, after medicine 20 days 10% florasulam pyridine sulphur grass amine clodinafop-propargyl suspending agents (1.5:2.5:6) use 8-10 gram/acre, preparation to wheat paddock wild oat, amur foxtail, shepherd's purse, clearvers, broadcast ma wormwood artemisia and chickweed preventive effect all apparently higher than each single dose or binary built product, in pilot survey process, do not find that said composition produces poisoning to wheat simultaneously, as can be seen here, said composition is worth applying in agricultural production.
Claims (4)
1. for a Herbicidal combinations for eliminating weed in wheat field, it is characterized in that: active ingredient is florasulam, pyridine sulphur grass amine and clodinafop-propargyl.The percentage by weight of florasulam in composition is 1%～20%, and the percentage by weight of pyridine sulphur grass amine in composition is 1%～20%, and the percentage by weight of clodinafop-propargyl in composition is 1%～50%, and all the other are insecticides adjuvant.
2. a kind of Herbicidal combinations for eliminating weed in wheat field according to claim 1, is characterized in that: in described Herbicidal combinations, also contain the auxiliary element that pesticidal preparations is conventional, to make the formulation products that is adapted at using in agricultural production.
3. a kind of Herbicidal combinations for eliminating weed in wheat field according to claim 1, is characterized in that: its formulation is a kind of in suspending agent, wetting powder and water dispersible granules.
4. a kind of Herbicidal combinations for eliminating weed in wheat field according to claim 1, is characterized in that: be applicable to eliminating weed in wheat field.
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| CN201310416695.7A CN103518746B (en) | 2013-09-12 | 2013-09-12 | A kind of Herbicidal combinations for eliminating weed in wheat field |
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| CN201310416695.7A CN103518746B (en) | 2013-09-12 | 2013-09-12 | A kind of Herbicidal combinations for eliminating weed in wheat field |
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| CN103518746B CN103518746B (en) | 2016-07-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104542645A (en) * | 2015-01-20 | 2015-04-29 | 江苏富鼎化学有限公司 | Weeding composition containing pyroxsulam, chodinafop-propargyl and fluroxypyr |
| CN109874577A (en) * | 2019-04-18 | 2019-06-14 | 淮安市植保植检站 | Wheatland Wintering Period chemical weed control method |
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| WO2009012979A2 (en) * | 2007-07-24 | 2009-01-29 | Syngenta Participations Ag | Herbicidal compositions comprising pyroxsulam and a fatty acid alkyl ester |
| CN101926341A (en) * | 2010-09-13 | 2010-12-29 | 尹小根 | Weeding composition containing florasulam and clodinafop-propargyl |
| CN102017973A (en) * | 2010-12-30 | 2011-04-20 | 苏州富美实植物保护剂有限公司 | Weeding composition for wheat field |
| CN102326568A (en) * | 2011-10-21 | 2012-01-25 | 联保作物科技有限公司 | Wheat field weeding composition and preparation thereof |
| CN102405921A (en) * | 2011-12-27 | 2012-04-11 | 联保作物科技有限公司 | Herbicide composition |
| CN103190418A (en) * | 2013-04-17 | 2013-07-10 | 海利尔药业集团股份有限公司 | Weeding composition containing pyroxsulam and florasulam |
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2013
- 2013-09-12 CN CN201310416695.7A patent/CN103518746B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009012979A2 (en) * | 2007-07-24 | 2009-01-29 | Syngenta Participations Ag | Herbicidal compositions comprising pyroxsulam and a fatty acid alkyl ester |
| CN101926341A (en) * | 2010-09-13 | 2010-12-29 | 尹小根 | Weeding composition containing florasulam and clodinafop-propargyl |
| CN102017973A (en) * | 2010-12-30 | 2011-04-20 | 苏州富美实植物保护剂有限公司 | Weeding composition for wheat field |
| CN102326568A (en) * | 2011-10-21 | 2012-01-25 | 联保作物科技有限公司 | Wheat field weeding composition and preparation thereof |
| CN102405921A (en) * | 2011-12-27 | 2012-04-11 | 联保作物科技有限公司 | Herbicide composition |
| CN103190418A (en) * | 2013-04-17 | 2013-07-10 | 海利尔药业集团股份有限公司 | Weeding composition containing pyroxsulam and florasulam |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104542645A (en) * | 2015-01-20 | 2015-04-29 | 江苏富鼎化学有限公司 | Weeding composition containing pyroxsulam, chodinafop-propargyl and fluroxypyr |
| CN104542645B (en) * | 2015-01-20 | 2016-01-20 | 江苏富鼎化学有限公司 | A kind of Herbicidal combinations containing pyridine sulphur grass amine, clodinafop-propargyl and fluroxypyr |
| CN109874577A (en) * | 2019-04-18 | 2019-06-14 | 淮安市植保植检站 | Wheatland Wintering Period chemical weed control method |
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