CN103749512A - Weeding composition containing flucarbazone-sodium and methiopyrisulfuron - Google Patents
Weeding composition containing flucarbazone-sodium and methiopyrisulfuron Download PDFInfo
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- CN103749512A CN103749512A CN201310739080.8A CN201310739080A CN103749512A CN 103749512 A CN103749512 A CN 103749512A CN 201310739080 A CN201310739080 A CN 201310739080A CN 103749512 A CN103749512 A CN 103749512A
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- flucarbazone
- sulfonylurea
- herbicidal combinations
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Abstract
The invention relates to a weeding composition containing flucarbazone-sodium and methiopyrisulfuron. The effective components comprise flucarbazone-sodium and methiopyrisulfuron in a weight ratio of 40:1-1:1. The weeding composition has synergic actions on grassy weeds and broadleaf weeds in wheat fields, has obviously better weeding effects than a single agent, has wider weed control spectrum, lowers the pesticide consumption, reduces the environmental pollution and postpones the generation of drug resistance of weeds.
Description
Technical field
The present invention relates to agricultural chemicals Herbicidal combinations and application thereof, specifically a kind ofly take the Herbicidal combinations that flucarbazone and Sulfonylurea be active ingredient, be applied to the control of wheat paddock grassy weed and broad leaved weed.
Background technology
Flucarbazone is the efficient wheat paddock weed killer herbicide of sulfonylurea internal-suction type, and the grassy weeds such as wild oat, bromegrass, amur foxtail and part broad leaved weed are had to obvious preventive effect.Its active ingredient can be absorbed by the root of weeds and cauline leaf, and by suppressing the activity of acetolactate synthestase in weeds body, destroy the normal Physiological and Biochemical Metabolism of weeds and bring into play activity of weeding, and can very fast metabolism in wheat body, wheat is had to fabulous safety.
Sulfonylurea is that yellow ureide derivative compound is carried out to structural modification and the highy potent herbicide that obtains, has the features such as broad weed-killing spectrum, dosage be low.Be mainly used in preventing and kill off the most of broad leaved weeds of winter wheat and spring wheat and part grassy weed, to succession crop safety.
By the screening of different pesticide species compounded formulas, filter out rational formula, can effectively improve the actual control efficiency to disease pest and weed, expanding prevention spectrum, reduce dosage, reduce costs, alleviate the pollution to environment, delaying the drug-fast generation of disease pest and weed, is the important means of the upper disease pest and weed comprehensive regulation of agricultural.
The inventor conducts in-depth research the composite use of flucarbazone and Sulfonylurea, on the basis of a large amount of formula indoor screenings and field medicine effect test, find that flucarbazone and Sulfonylurea carry out composite, within the scope of certain compound proportion, wheat weeds is shown to obvious synergistic function, after further study, completed the present invention.
Not yet find at present the relevant report that flucarbazone and Sulfonylurea are composite.
Summary of the invention
The object of the present invention is to provide a kind ofly there is synergistic function, expand herbicide spectrum, use cost is low, control efficiency is good active ingredient is the Wheat field weeding composition of flucarbazone and Sulfonylurea.
The technical scheme that realizes the object of the invention is: a kind of Herbicidal combinations that contains flucarbazone and Sulfonylurea, active ingredient is flucarbazone and Sulfonylurea, the ratio of weight and number of flucarbazone and Sulfonylurea is 40:1～1:1, flucarbazone and the Sulfonylurea gross weight percentage composition in Herbicidal combinations is 1%～85%, and all the other are in agricultural chemicals, to allow to use and acceptable auxiliary element.
Herbicidal combinations of the present invention is prepared into and is applicable to upper any one formulation used of agricultural by known method, and reasonable formulation has wetting powder, water dispersible granules, oil-suspending agent.The processing technology of the various preparations of the present composition is prior art, according to different situations, can change to some extent.
The auxiliary agent using in Herbicidal combinations of the present invention comprises that solvent, emulsifier, wetting agent, stabilizing agent, dispersant, thickener, pH adjusting agent, defoamer, antifreezing agent, packing agent etc. are of value to active ingredient and in preparation, stablize and bring into play the known substance of drug effect, be all various compositions conventional in pesticidal preparations or that allow to use, concrete composition and consumption require to determine by test according to formula.
Product described in the invention can finished product preparation form provide, in composition, each material mixes, the form that the composition of composition also can single dose provides, and before use, directly in tank or bucket, mixes, and is then diluted to needed concentration.The frequency of administration of the present composition and amount of application change with weather conditions and weeds situation, can be by using suitable dosage to reach the object of preventing and kill off.
Herbicidal combinations of the present invention is applicable to prevent and kill off farmland weed, especially wheat paddock grassy weed and broad leaved weed.
Herbicidal combinations provided by the invention, adopts the method for spraying to use conventionally, also can adopt as required other operation techniques of the upper application of agricultural.
Compared with prior art, the invention has the advantages that:
1, flucarbazone and Sulfonylurea compositely have synergistic function, than the independent use of single dose, have obviously improved the control efficiency to weeds, have expanded herbicide spectrum, and a drug just can solve most of cornfield gramineae weed and broad leaved weed.
2, two kinds of active ingredients of flucarbazone and Sulfonylurea are composite, reduced agricultural chemicals usage amount, reduced use cost, alleviated pollution to environment, delayed herbicide resistance generation, increased service life of agricultural chemicals.
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) formulation embodiment
In following each embodiment, active ingredient adopts the former medicine of 95% flucarbazone and the former medicine of 96% Sulfonylurea, and each component percentage composition is weight percentage.
Embodiment 1:70% flucarbazone Sulfonylurea water dispersible granules
Flucarbazone 60%, Sulfonylurea 10%, lauryl sodium sulfate 5%, fatty acid ester sulphate 5%, sodium chloride 2%, kaolin supplies 100%.Above-mentioned active ingredient, dispersant, wetting agent, disintegrant and solid carrier are mixed, with micro jet, pulverize, through mediating, then add in fluidized bed prilling dryer and carry out granulation, dry, screening, can make 70% flucarbazone Sulfonylurea water dispersible granules.
Embodiment 2:80% flucarbazone Sulfonylurea wetting powder
Flucarbazone 75%, Sulfonylurea 5%, sodium butylnaphthalenesulfonate 5%, alkylphenol polyoxyethylene formaldehyde condensation products 3%, diatomite supplies 100%.By above-mentioned, active ingredient, dispersant, wetting agent and solid carrier are mixed, after mechanical disintegration, again through air-flow crushing, mix, can make 80% flucarbazone Sulfonylurea wetting powder.
Embodiment 3:30% flucarbazone Sulfonylurea oil-suspending agent
Flucarbazone 28%, Sulfonylurea 2%, alkylphenol polyoxyethylene sulphate 10%, neopelex 10%, xanthans 0.5%, methyl oleate supplies 100%.By above-mentioned active ingredient and auxiliary agent through high speed shear disperse, in sand mill after sand milling, the high dispersive forming in non-water-medium, stable suspension system, can make 30% flucarbazone Sulfonylurea oil-suspending agent.
(2) indoor biological activity determination and field efficacy checking embodiment
Embodiment 4: the indoor synergy determination test to weeds is processed in flucarbazone cauline leaf spraying mixed with Sulfonylurea.
1.1 for trying target: wild oat (Avena fatua L.), clearvers (Galium aparine L.var.tenerum (Gren.et Godr.) Rcbb.) field are collected seed and preserved.
1.2 test medicines: the former medicine of flucarbazone 95%, the former medicine of Sulfonylurea 96%.
1.3 medicaments configuration designs: flucarbazone single dose is mixed with 4,12,20g a.i./ha solution for standby; Sulfonylurea single dose is mixed with 0.8,1.2,1.6g a.i./ha solution for standby; Flucarbazone and Sulfonylurea mixture are mixed with 4+0.8,4+1.2,4+1.6,12+0.8,12+1.2,12+1.6,20+0.8,20+1.2,20+1.6g a.i./ha solution for standby.
1.4 test methods: at high 6cm, the in-built quantitative soil of porcelain alms bowl of diameter 9cm, by 15～20 sowings of target weed seed in porcelain alms bowl, after the fine earth of lid 0.5～1cm, be placed in greenhouse and cultivate, treat that target weeds grew to for 2～4 leaf phases, carrying out cauline leaf spraying processes, every porcelain alms bowl quantitatively sprays 1ml, every processing repeats for 4 times, and establish not the contrast that is treated to containing medicament, after processing, examination material is placed in greenhouse and cultivates, the growing state of routine observation target weeds, after 15d, estimate target be injured symptom and growth inhibition situation, and claim acrial part fresh weight, with target fresh weight inhibiting rate, evaluate the toxicity action of medicament to target weeds.
1.5 investigation methods:
Test is processed and to be estimated target be injured symptom and growth inhibition situation after 15d, and claims acrial part fresh weight, calculates fresh weight inhibiting rate (%).
1.6 synergy evaluation methods
According to Gowing method, evaluate weed killer herbicide associated form (NY/T1155.7-2006), its formula is as follows:
E
0﹦X﹢Y–XY／100
In formula, X is flucarbazone fresh weight inhibiting rate to target weeds when alone with certain dosage; Y is Sulfonylurea fresh weight inhibiting rate to target weeds when alone with certain dosage; E
0theoretical value to target weeds fresh weight inhibiting rate during for flucarbazone, two kinds of pharmacy mix of Sulfonylurea; Measured value to target weeds fresh weight inhibiting rate when E is flucarbazone, two kinds of pharmacy mix of Sulfonylurea.
Evaluation criterion: as E – E
0during > 10%, be expressed as synergistic effect; As ﹣ 10%≤E-E
0in the time of≤10%, show as summation action; As E – E
0during < ﹣ 10%, show as antagonism.
1.7 data statistic analysis:
All test datas all adopt DPS v14.10 statistical software to analyze.
1.8 results and analysis:
As can be seen from Table 1, flucarbazone and Sulfonylurea are processed with the cauline leaf spraying that is mixed of the ratio of active ingredient 4+0.8,4+1.2,4+1.6,12+0.8,12+1.2,12+1.6,20+0.8,20+1.2,20+1.6 respectively, the E-E to wild oat
0(%) value is respectively 13.21,13.42,16.10,12.06,14.88,16.48,11.86,13.39,12.10, is all greater than 10%, illustrates wild oat is all shown to synergistic function; E-E to clearvers
0(%) value is respectively 14.25,12.22,13.49,17.55,18.95,13.43,13.45,15.33,10.89, all be greater than 10%, explanation all shows synergistic function to clearvers, and visible flucarbazone and Sulfonylurea be composite has reasonability and feasibility.
The synergy measurement result to weeds is processed in the mixed cauline leaf spraying of table 1, flucarbazone and Sulfonylurea.
Embodiment 5: the field control effectiveness test to weeds of wheat
More wheat paddock occurs for test selection amur foxtail, wild oat, clearvers and Veronica carries out.4 processing are established in test altogether, 3 repetitions are established in every processing, processing 1 is 30% flucarbazone Sulfonylurea oil-suspending agent, processing 2 is 70% flucarbazone water dispersible granules, processing 3 is 10% Sulfonylurea wetting powder, take not weeding of not dispenser as contrast, 30 days afterwards statistics respectively process number of weeds amount and calculate preventive effect, result of the test is in Table 2.
Table 2, the test of pesticide effectiveness result of 30% flucarbazone Sulfonylurea oil-suspending agent to weeds of wheat.
As can be seen from Table 2,30% flucarbazone Sulfonylurea oil-suspending agent will be used separately apparently higher than 70% flucarbazone water dispersible granules and 10% Sulfonylurea wetting powder the preventive effect of amur foxtail, wild oat, clearvers and Veronica, after while medicine, the preventive effect of 30 days is still more than 90%, illustrate that this compound drug has the good lasting period, in pilot survey process, do not find that this compound drug produces poisoning to wheat.As can be seen here, Herbicidal combinations of the present invention is worth applying in agricultural production.
Claims (4)
1. a Herbicidal combinations that contains flucarbazone and Sulfonylurea, it is characterized in that: active ingredient is flucarbazone and Sulfonylurea, the ratio of weight and number of flucarbazone and Sulfonylurea is 40:1～1:1, and flucarbazone and the Sulfonylurea gross weight percentage composition in Herbicidal combinations is 1%～85%.
2. a kind of Herbicidal combinations that contains flucarbazone and Sulfonylurea 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 that contains flucarbazone and Sulfonylurea according to claim 1, is characterized in that: its formulation can be a kind of in wetting powder, water dispersible granules, oil-suspending agent.
4. a kind of Herbicidal combinations that contains flucarbazone and Sulfonylurea according to claim 1, is characterized in that: be applicable to prevent and kill off wheat paddock grassy weed and broad leaved weed.
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| CN201310739080.8A CN103749512B (en) | 2013-12-26 | 2013-12-26 | A kind of containing flucarbazone with the Herbicidal combinations of Sulfonylurea |
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| CN201310739080.8A CN103749512B (en) | 2013-12-26 | 2013-12-26 | A kind of containing flucarbazone with the Herbicidal combinations of Sulfonylurea |
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| CN103749512B CN103749512B (en) | 2016-10-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108935501A (en) * | 2018-07-24 | 2018-12-07 | 浙江中山化工集团股份有限公司 | A kind of herbicide composition for wheat field |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1695450A (en) * | 2003-10-10 | 2005-11-16 | 湖南化工研究院 | Compsn. matched to weed killer in sulfonylurea |
| CN102060785A (en) * | 2009-11-11 | 2011-05-18 | 李家波 | Synthesis process of methiopyrsulfuron |
| US20110287932A1 (en) * | 2010-05-21 | 2011-11-24 | Bayer Cropscience Ag | Herbicidal composition for tolerant or resistant cereal crops |
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- 2013-12-26 CN CN201310739080.8A patent/CN103749512B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1695450A (en) * | 2003-10-10 | 2005-11-16 | 湖南化工研究院 | Compsn. matched to weed killer in sulfonylurea |
| CN102060785A (en) * | 2009-11-11 | 2011-05-18 | 李家波 | Synthesis process of methiopyrsulfuron |
| US20110287932A1 (en) * | 2010-05-21 | 2011-11-24 | Bayer Cropscience Ag | Herbicidal composition for tolerant or resistant cereal crops |
Non-Patent Citations (2)
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| WU CHUN-XIAN 等: "Adsorption and Desorption of Methiopyrsulfuron in Soils", 《PEDOSPHERE》 * |
| 欧晓明 等: "新农药甲硫嘧磺隆的醇解动力学及机理研究", 《农业环境科学学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108935501A (en) * | 2018-07-24 | 2018-12-07 | 浙江中山化工集团股份有限公司 | A kind of herbicide composition for wheat field |
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