CN103960267A - Herbicidecomposition containing thifensulfuron-methyl and pyroxsulam - Google Patents
Herbicidecomposition containing thifensulfuron-methyl and pyroxsulam Download PDFInfo
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- CN103960267A CN103960267A CN201410138239.5A CN201410138239A CN103960267A CN 103960267 A CN103960267 A CN 103960267A CN 201410138239 A CN201410138239 A CN 201410138239A CN 103960267 A CN103960267 A CN 103960267A
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- thifensulfuronmethyl
- grass amine
- sulphur grass
- pyridine sulphur
- herbicidecomposition
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Abstract
The invention discloses herbicidecomposition containing thifensulfuron-methyl and pyroxsulam. The herbicidecomposition comprises effective components, namely, the thifensulfuron-methyl and the pyroxsulam, and the rest is pesticide additives; the mass part ratio of the thifensulfuron-methyl to the pyroxsulam is in a range of 1:5-5:1, and the total mass of the thifensulfuron-methyl and the pyroxsulamaccounts for 3%-80% of the mass of the herbicidecomposition. According to application requirements, the herbicidecomposition can be prepared into one of a dispersible oil suspending agent, a suspending agent, wettable powder and water dispersible granules and is used for preventing and killing offannual grass and broadleaf weeds in winter wheat fields. The composition is obviously superior to various single agents in prevention and killing off effects on the annual grass and broadleaf weeds in the winter wheat fields, the dosage is reduced, and the drug resistance of the weeds is delayed.
Description
Technical field
The present invention relates to a kind of composition that contains thifensulfuronmethyl and pyridine sulphur grass amine, is that to take thifensulfuronmethyl be active ingredient with the careless amine of pyridine sulphur, for preventing and treating winter wheat field annual gramineae and broad leaved weed.
Background technology
Chemical method weeding is one of upper Main Means of controlling weeds of agricultural.In recent years, because some weed killer herbicide kind large area are used separately, caused a lot of weeds to develop immunity to drugs.Meanwhile, grass when weeds occur is complicated mutually, grassy weed, broad leaved weed, the mixed life of nutgrass flatsedge multiclass weeds, and single variety weed killer herbicide is used can not solve farmland weed, all can show defect and limitation in a certain respect.Variety classes weed killer herbicide is mixed, have herbicidal spectrum wide, promote actual effect, delay herbicide resistance, the advantage such as time and labour saving.
Thifensulfuronmethyl belongs to selective herbicide after inner sucting conduction type seedling, is branched-chain amino acid synthetic inhibitor, can suppress the biosynthesis of valine, leucine, isoleucine, stops cell division, and sensitive crop is stopped growing.Be mainly used in preventing and kill off the broad leaved weed between cereal crop wheat, barley, oat, corn field, as Amaranthus retroflexus, clearvers, broadcast ma wormwood artemisia, shepherd's purse, salsola collina, clearvers, Veronica, ox chickweed etc.
Pyridine sulphur grass amine is sulfonamides inner sucting conduction type, selectivity wheat paddock herbicide after seedling.By grass cutting blade, sheath portion, stem or root absorption, in growing point accumulation, suppress acetolactate synthestase, cannot synthesize branched-chain amino acid, and then affect the synthetic of protein, cause that weeds stop growing, yellow, then death.
Variety classes weed killer herbicide is mixed, have herbicidal spectrum wide, promote actual effect, delay herbicide resistance, time and labour saving advantage.By formulation of pesticide, screening, can effectively improve actual control efficiency, reduce dosage, reduce costs, delay disease, worm, the drug-fast generation of crop smothering, is the important means that agricultural synthesis is administered.The inventor conducts in-depth research the formula screening of thifensulfuronmethyl and pyridine sulphur grass amine, find that thifensulfuronmethyl and pyridine sulphur grass amine are mixed, in certain mixed ratio scope, winter wheat field annual gramineae and broad leaved weed are had to synergy or summation action, after further study, completed the present invention.
Summary of the invention
The object of the invention is to solve in prior art to farmland weed develop immunity to drugs problem and actual control efficiency poor, provide a kind of efficient, low toxicity, quick-acting is good and the lasting period is long, is conducive to the Herbicidal combinations of the farmland weed comprehensive regulation.
Another object of the present invention be by this Herbicidal combinations for preventing and kill off farmland weed, be particularly useful for winter wheat field annual gramineae and broad leaved weed etc.
Technical solution of the present invention: for achieving the above object, the invention provides a kind of Herbicidal combinations that contains thifensulfuronmethyl and pyridine sulphur grass amine, it comprises active ingredient thifensulfuronmethyl and pyridine sulphur grass amine, the ratio of quality and the number of copies of thifensulfuronmethyl and pyridine sulphur grass amine is 1:5～5:1, thifensulfuronmethyl and the gross mass mark percentage composition of pyridine sulphur grass amine in Herbicidal combinations are 3%～80%, and all the other are in agricultural chemicals, to allow to use and acceptable auxiliary element.
Herbicidal combinations those skilled in the art of the present invention can select suitable pesticidal preparations auxiliary element according to known method, make the upper conventional formulation such as the agricultural that dispersibles oil-suspending agent, suspending agent, wetting powder, water dispersible granules.
The auxiliary agent using in Herbicidal combinations provided by the invention comprises solvent, emulsifier, wetting agent, stabilizing agent, dispersant, safener, thickener, pH adjusting agent, defoamer, antifreezing agent, deionized water, filler etc., all various auxiliary agents conventional in Pesticide formulation, concrete composition and consumption, according to formula requirement, are determined through simple test.
The production technology of the various application forms of Herbicidal combinations provided by the invention all belongs to existing known technology, does not repeat them here.
Herbicidal combinations provided by the invention, adopts cauline leaf spray method to use in 3～4 leaf phases of weeds, also can adopt as required other operation techniques of the upper application of agricultural.
Herbicidal combinations provided by the invention has following beneficial effect:
1, Herbicidal combinations provided by the invention, in certain ratio range, show obvious synergistic effect, the control efficiency of composition is significantly improved than single dose, reduced the using dosage of agricultural chemicals, reduced medication number of times, reduce drug cost, reduced the adverse effect of agricultural chemicals to ecotope.
2, Herbicidal combinations provided by the invention, the combination of two kinds of active ingredients, has expanded herbicidal spectrum, and a drug can solve weeds problem, has made up defect and limitation when single dose is used.
3, Herbicidal combinations provided by the invention, two kinds of active ingredient mechanism of action are different, can overcome the shortcoming that long-term single use easily produces resistance, extend the service life of medicament, the comprehensive regulation important in inhibiting to Weed Resistance.
4, Herbicidal combinations provided by the invention, rapidly, the lasting period is long in drug effect performance, and use cost is low, easy to use, time saving and energy saving, and it applies huge economic benefit and social benefit.
Embodiment
In order to make object of the present invention, technical scheme and advantage more short and sweet, the present invention describes with following specific embodiment, but the present invention only limits to absolutely not these examples.The following stated is only the good embodiment of the present invention, only for describing the present invention, can not be interpreted as limitation of the scope of the invention.It should be pointed out that all any modifications of making within the spirit and principles in the present invention, be equal to replacement and improvement etc., within all should being included in protection scope of the present invention.
In these embodiments, unless otherwise indicated, all percentage is all weight percentage.
Biologicall test embodiment mono-: synergy is measured.
The synergy being mixed to weeds for further understanding thifensulfuronmethyl and pyridine sulphur grass amine, the inventor is mixed and has carried out formulation screening test thifensulfuronmethyl and pyridine sulphur grass amine:
Test material:
Clearvers [Galium aparine L.Var.tenerum] (field collection seed).
Amur foxtail [Alopecurus aequalis Sobol] (field collection seed).
Test apparatus:
Controlled illumination box; The accurate laboratory of POTTER spray tower; Electronic balance (sensibility reciprocal 0.1mg); Micropipette rifle etc.
Test method:
The purity that first takes certain mass is the former medicine of 95% thifensulfuronmethyl, the former medicine of 96.5% pyridine sulphur grass amine, add acetone fully to dissolve the Tween 80 aqueous solution dilution of rear use 0.1%, be mixed with respectively single dose mother liquor, according to the object that is mixed, serial proportioning be set, each proportioning arranges 5～7 concentration gradients.According to single dose herbicide spectrum, select representative susceptible weeds seed, be cultured to 2 leaf 1 hearts standby.After the weeds cauline leaf of selecting numbering is processed, be placed in illumination box incubated at room temperature 20 days, calculate control efficiency (fresh weight preventive effect or strain preventive effect), then by method of least squares, calculate dense EC50(95% confidence limit in inhibition), then calculate co-toxicity coefficient (CTC) by the abundant method of Sun Yun.
Co-toxicity coefficient (CTC) >=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80 < co-toxicity coefficient (CTC) < 120 show as summation action.
Actual measurement toxicity index (ATI)=(standard medicament EC
50/ reagent agent EC
50) * 100.
Theoretical toxicity index (TTI)=(percentage composition of A in toxicity index * mixture of A)+(percentage composition of B in toxicity index * mixture of B).
Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] * 100.
Measurement result shows, thifensulfuronmethyl and pyridine sulphur grass amine, between mixed ratio 1:5～5:1, have obvious synergy or summation action.The mixed ratio of thifensulfuronmethyl and pyridine sulphur grass amine is respectively when 3:1 and 1:1, and obvious to the synergistic effect of clearvers and amur foxtail, co-toxicity coefficient reaches respectively 135.46 and 159.10.
Table 1, different proportioning thifensulfuronmethyl and pyridine sulphur grass amine are measured the synergy of clearvers.
Table 2, different proportioning thifensulfuronmethyl and pyridine sulphur grass amine are measured the synergy of amur foxtail.
FORMULATION EXAMPLE one: (30% thifensulfuronmethyl pyridine sulphur grass amine wetting powder).
Above-mentioned formula is entered in blender after coarse crushing and mixed in proportion, then after air-flow crushing, mix and make 30% thifensulfuronmethyl pyridine sulphur grass amine wetting powder.
FORMULATION EXAMPLE two: (15% thifensulfuronmethyl pyridine sulphur grass amine dispersibles oil-suspending agent).
Above-mentioned formula Central Plains medicine, solvent, emulsifiers dissolve are become to even oil phase; Under high-speed stirred, mixing makes 15% thifensulfuronmethyl pyridine sulphur grass amine and dispersibles oil-suspending agent.
FORMULATION EXAMPLE three: (33% thifensulfuronmethyl pyridine sulphur grass amine suspending agent).
Above-mentioned formula is pulverized in proportion in advance, then added in sand mill and grind, after high shear mixing, allotment makes 33% thifensulfuronmethyl pyridine sulphur grass amine suspending agent.
FORMULATION EXAMPLE four: (35% thifensulfuronmethyl pyridine sulphur grass amine water dispersible granules).
By above-mentioned formula, dry pulverization process, granulation, dry, screening make 35% thifensulfuronmethyl pyridine sulphur grass amine water-dispersible granules in proportion.
Field control effectiveness test embodiment mono-: the field control effectiveness test to winter wheat field annual gramineae and broad leaved weed.
Reagent agent and dispenser dosage:
(1) 30% thifensulfuronmethyl pyridine sulphur grass amine wetting powder (15% thifensulfuronmethyl 15% pyridine sulphur grass amine), 18.6 grams, preparation (1#) for mu.
(2) 15% thifensulfuronmethyl pyridine sulphur grass amine dispersible oil-suspending agent (7.5% thifensulfuronmethyl 7.5% pyridine sulphur grass amine), 37.4 grams, preparation (2#) for mu.
(3) 33% thifensulfuronmethyl pyridine sulphur grass amine suspending agents (22% thifensulfuronmethyl 11% pyridine sulphur grass amine), 16.4 grams, preparation (3#) for mu.
(4) 35% thifensulfuronmethyl pyridine sulphur grass amine water dispersible granules (20% thifensulfuronmethyl 15% pyridine sulphur grass amine), 15.3 grams, preparation (4#) for mu.
(5) 15% thifensulfuronmethyl wetting powders, 13.3 grams, preparation (5#) for mu.
(6) 7.5% pyridine sulphur grass amine water dispersible granules, 10.7 grams, preparation (6#) for mu.
Dispenser period: 3～4 leaf phases of weeds, be watered even spraying.
Prevent and kill off object: clearvers, amur foxtail, wild oat, Veronica.
Result of the test is in Table 3.As can be seen from the test results: after medicine 15 days, Herbicidal combinations of the present invention at least reached more than 81.4% the average preventive effect of winter wheat field annual gramineae and broad leaved weed.Herbicidal combinations of the present invention, significantly better than the single dose of contrast, expands herbicide spectrum, and synergistic effect is remarkable, and quick-acting and lasting period are obviously better than single dose.
Table 3, control winter wheat field annual gramineae and broad leaved weed field control effectiveness test result.
Claims (3)
1. a Herbicidal combinations that contains thifensulfuronmethyl and pyridine sulphur grass amine, it is characterized in that: active ingredient is thifensulfuronmethyl and pyridine sulphur grass amine, the mass fraction ratio of thifensulfuronmethyl and pyridine sulphur grass amine is 1:5～5:1, and thifensulfuronmethyl and the gross mass mark percentage composition of pyridine sulphur grass amine in Herbicidal combinations are 3%～80%.
2. Herbicidal combinations according to claim 1, is characterized in that: its formulation is to dispersible a kind of in oil-suspending agent, suspending agent, wetting powder or water dispersible granules.
3. the Herbicidal combinations described in 1 as requested, is applicable to prevent and kill off winter wheat field annual gramineae and broad leaved weed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410138239.5A CN103960267B (en) | 2014-04-08 | 2014-04-08 | A kind of containing thifensulfuronmethyl with the Herbicidal combinations of pyroxsulam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410138239.5A CN103960267B (en) | 2014-04-08 | 2014-04-08 | A kind of containing thifensulfuronmethyl with the Herbicidal combinations of pyroxsulam |
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| CN103960267A true CN103960267A (en) | 2014-08-06 |
| CN103960267B CN103960267B (en) | 2016-09-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104430449A (en) * | 2014-11-26 | 2015-03-25 | 广东中迅农科股份有限公司 | Weeding composition containing amidosulfuron and pyroxsulam |
| CN105284852A (en) * | 2015-10-30 | 2016-02-03 | 泰安市农业科学研究院 | Triaziflam and thifensulfuron methyl-containing weeding missible oil |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332608A (en) * | 1998-11-10 | 2002-01-23 | 辛根塔参与股份公司 | Herbicidal composition |
| CN102428945A (en) * | 2012-01-16 | 2012-05-02 | 河北博嘉农业有限公司 | Flucarbazone-Na compounded herbicide |
| CN103283747A (en) * | 2013-05-20 | 2013-09-11 | 青岛奥迪斯生物科技有限公司 | Weeding composition containing tribenuron-methyl and pyroxsulam |
| CN103688966A (en) * | 2013-12-24 | 2014-04-02 | 安徽丰乐农化有限责任公司 | Weeding water dispersible granule |
-
2014
- 2014-04-08 CN CN201410138239.5A patent/CN103960267B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332608A (en) * | 1998-11-10 | 2002-01-23 | 辛根塔参与股份公司 | Herbicidal composition |
| CN102428945A (en) * | 2012-01-16 | 2012-05-02 | 河北博嘉农业有限公司 | Flucarbazone-Na compounded herbicide |
| CN103283747A (en) * | 2013-05-20 | 2013-09-11 | 青岛奥迪斯生物科技有限公司 | Weeding composition containing tribenuron-methyl and pyroxsulam |
| CN103688966A (en) * | 2013-12-24 | 2014-04-02 | 安徽丰乐农化有限责任公司 | Weeding water dispersible granule |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104430449A (en) * | 2014-11-26 | 2015-03-25 | 广东中迅农科股份有限公司 | Weeding composition containing amidosulfuron and pyroxsulam |
| CN104430449B (en) * | 2014-11-26 | 2017-10-17 | 广东中迅农科股份有限公司 | A kind of Herbicidal combinations containing amidosulfuron and pyroxsulam |
| CN105284852A (en) * | 2015-10-30 | 2016-02-03 | 泰安市农业科学研究院 | Triaziflam and thifensulfuron methyl-containing weeding missible oil |
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| CN103960267B (en) | 2016-09-07 |
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