CN103518759A - Weeding composition containing bensulfuron methyl and pyriftalid - Google Patents
Weeding composition containing bensulfuron methyl and pyriftalid Download PDFInfo
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- CN103518759A CN103518759A CN201310416703.8A CN201310416703A CN103518759A CN 103518759 A CN103518759 A CN 103518759A CN 201310416703 A CN201310416703 A CN 201310416703A CN 103518759 A CN103518759 A CN 103518759A
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- pyriftalid
- methyl
- bensulfuron
- weed
- weeds
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Abstract
The invention relates to a weeding composition containing bensulfuron methyl and pyriftalid. The weeding composition comprises the following active ingredients: bensulfuron methyl and pyriftalid, wherein the bensulfuron methyl and the pyriftalid in the weeding composition are in the weight part ratio of (8:1) to (1:10), preferably (5:1) to (1:8). The weeding composition has the advantages that the weeding effect is improved after the bensulfuron methyl and the pyriftalid are compounded; a herbicide controlling spectrum is expanded; the medication time range is expanded relative to the conventional herbicides; the resistance risks caused by single use of the bensulfuron methyl or the pyriftalid are reduced; the weeding composition is low in toxicity and low in residue, and is suitable for preventing and killing annual weeds of a paddy field; the dosage and the use cost are reduced.
Description
Technical field
The invention belongs to agriculture weeding technical field, be specifically related to a kind of Herbicidal composition for rice field that bensulfuron-methyl, pyriftalid be active ingredient of take.
Background technology
Along with progressively eliminating of high-toxic pesticide, need efficient, low toxicity, safety, environment amenable pharmaceutical preparations, the long-term use of agricultural chemicals simultaneously produces the pesticide resistance of disease pest and weed, requirement to control medicament is also more and more higher, this just needs agricultural chemicals research staff to develop the pharmaceutical preparations of highly effective and safe, meets control requirement.Because China's agricultural chemicals initiative is at the early-stage, the pesticide species with independent intellectual property right can't be satisfied the demand, so the pesticide mixed preparation of development of new, is the only way of current Agrochemicals.
Paddy rice is one of main cereal crops of China, and paddy field weeding is a great problem on producing.Chemical weed control is the Main Means of controlling at present weeds.In recent years, because some weeding single dose kind large area are used separately, cause a lot of weeds to develop immunity to drugs, therefore, be badly in need of the paddy field novel herbicidal medicament of efficient, low toxicity, economy, safety.
At present transplanted rice field or seedling throwing field sealer use age will medications before weeds are unearthed, cauline leaf inorganic agent will be used after the most of cauline leaf that is unearthed of weeds stretches, and before weeds are partly unearthed grass leaf in ages 3, conventional sealer cannot reach effective Weed control effect during this period of time.
Bensulfuron-methyl is wide spectrum selectivity inner-adsorption conduction-type herbicide for sulfonylurea rice field, mainly by root system, is absorbed, and also can absorb by cauline leaf, in weeds plant body, shift rapidly, suppress growth, weeds are dead gradually, can prevent and kill off annual broadleaf weed and sedge weed.
Pyriftalid is a kind of efficient pyrimidine salicylic acid selective herbicide, for inhibitor of acetolactate synthetase, mainly by root absorption and to leaves and stems, move, also can absorb by cauline leaf, to 3 leaves before the phase barnyard grass have special efficacy, effective to grassy weeds such as low age moleplant seed, lady's-grass, effective to broad leaved weeds such as chickweeds, sedge weed is had to certain preventive effect.Pyriftalid is mainly potential difference and selects weeding, is applicable to use after transplanted rice field or seedling throwing field rice striking root.
Weed killer herbicide is rationally composite is to improve preventive effect, expand herbicide spectrum or widen service time, delaying the speed of shift of weed community, reducing the resistance risk that the single use of agricultural chemicals brings, alleviate the pollution to environment, reduce a kind of effective ways of use cost and reduction herbicide residue.The inventor conducts in-depth research being mixed of bensulfuron-methyl, pyriftalid, on the basis of a large amount of formula indoor screening tests and field medicine effect test, find that bensulfuron-methyl, pyriftalid are mixed, within the scope of certain mixed ratio, paddy field weed is shown to synergistic effect, expanded herbicide spectrum, relatively conventional sealer has been widened administration time scope, after further study, has completed the present invention.
Being mixed and applying of bensulfuron-methyl, pyriftalid there is no report at present.
Summary of the invention
The object of the invention is to solve deficiency when weed killer herbicide is single to be used, filling up traditional weed killer herbicide is partly unearthed to the blank area of dispenser before 3 leaves in weeds, provide a kind of efficient, low toxicity, low cost, quick-acting good, and the lasting period is long, be conducive to the Herbicidal combinations of the paddy field annual weed comprehensive regulation.
Technical scheme of the present invention is: a kind of Herbicidal combinations, is comprised of active ingredient bensulfuron-methyl, pyriftalid and suitable insecticides adjuvant.Bensulfuron-methyl and the pyriftalid ratio of quality and the number of copies in Herbicidal combinations is 8:1～1:10, preferably than being 5:1～1:8.
Described Herbicidal combinations can be according to well known to a person skilled in the art method, the formulation of using in the applicable agriculturals such as excipient wetting powder, water dispersible granules, granule.
The production technology of the described various application forms of Herbicidal combinations all belongs to existing known technology, does not repeat them here.
Herbicidal combinations provided by the invention, is applicable to prevent and kill off paddy field annual weed.
Herbicidal combinations provided by the invention, conventionally adopts medicine local method or granulation agent or makes fertilizer granules and spread fertilizer over the fields.
Herbicidal combinations provided by the invention has following beneficial effect:
1, Herbicidal combinations provided by the invention, expanded the herbicide spectrum of bensulfuron-methyl and pyriftalid single dose, in certain ratio range, show synergistic function, the control efficiency of composition has had raising than single dose, reduce the using dosage of agricultural chemicals, reduced drug cost and the agricultural chemicals risk to ecotope adverse effect.
2, Herbicidal combinations provided by the invention, can reduce the resistance risk that the single bensulfuron-methyl of long-term use or pyriftalid produce, and extends the service life of medicament, the comprehensive regulation important in inhibiting to Weed Resistance.
3, Herbicidal combinations provided by the invention, rapidly, the lasting period is long, is having one month lasting period under water condition 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.
4, Herbicidal combinations provided by the invention, at transplanted rice field, seedling throwing field rice striking root, to weeds 3 leaves, all can use, both possessed the sealing feature of common enclosed type weed killer herbicide before weeds are unearthed, and can partly be unearthed and there is the double Weed control effect of sealing to 3 leaves in weeds again.
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.
Embodiment 1(80% bensulfuron-methyl Pyriftalid water dispersible granule).
Above-mentioned material is added in cone-type mixer and mixed together; by airslide disintegrating mill, pulverize; material after pulverizing mixes through cone-type mixer again; mixed fineness of materials 98% is by 600 mesh standard sieves; add and in kneader, be kneaded into plasticity material; finally this material is put into Squeezinggranulator extruder grain, granulation makes 80% bensulfuron-methyl Pyriftalid water dispersible granule after being dried, sieving.
The present embodiment is used for preventing and kill off rice seedling throwing field annual weed: annual gramineous weed, sedge weed and broad leaved weed are added up, spraying time is after rice seedling throwing 10 days, weeds are partly unearthed, be unearthed weeds 1 leaf about the phase, application method is medicine local method, mixes fine and glossy native 10 kilograms of left and right for every mu and spreads fertilizer over the fields.5 processing are established in experiment altogether, processing 1 is 80% bensulfuron-methyl Pyriftalid water dispersible granule, processing 2 is 20% bensulfuron-methyl water dispersible granules, processing 3 is 40% Pyriftalid water dispersible granule, processing 4 is 48% mefenacet 2% pyrazosulfuron water-wettable pulvis, process 5 for contrast (not weeding of not dispenser), add up and contrast and respectively process number of weeds amount and preventive effect after medicine after 20 days, result of the test is in Table 1.
Table 1,80% bensulfuron-methyl Pyriftalid water dispersible granule field control effectiveness test result.
Remarks: strain preventive effect=(check plot weeds strain number-treatment region weeds strain number)/check plot weeds strain counts * 100%.
During dispenser, part weeds are unearthed, grass leaf in age 1 left and right, by table 1 result, can find out, in the situation that in the present composition, single dose active ingredient is used separately lower than single dose, herbicide spectrum herbicidal effect is separately better than to single dose, sealer 48% mefenacet 2% pyrazosulfuron wetting powder spraying time is excessively late, poor to grassy weed preventive effect.
Embodiment 2(80% bensulfuron-methyl pyriftalid wetting powder).
Above-mentioned material is added in cone-type mixer and mixed together, by airslide disintegrating mill, pulverize, the material after pulverizing mixes through cone-type mixer again, and mixed fineness of materials 98%, by 600 mesh standard sieves, obtains 80% bensulfuron-methyl pyriftalid wetting powder.
The present embodiment is used for preventing and treating transplanted rice field annual weed: annual gramineous weed, sedge weed, broad leaved weed are added up, spraying time is after rice transplanting 7 days, weeds are not unearthed, and application method is medicine local method, mixes fine and glossy native 10 kilograms of left and right for every mu and spreads fertilizer over the fields.5 processing are established in experiment altogether, processing 1 is 80% bensulfuron-methyl pyriftalid wetting powder, processing 2 is 20% bensulfuron-methyl wetting powder, processing 3 is 40% pyriftalid wetting powder, processing 4 is 48% mefenacet 2% pyrazosulfuron wetting powder, process 5 for contrast (not weeding of not dispenser), add up and contrast and respectively process number of weeds amount and preventive effect after 20 days, result of the test is in Table 2.
Table 2,80% bensulfuron-methyl pyriftalid wetting powder field control effectiveness test result.
Remarks: strain preventive effect=(check plot weeds strain number-treatment region weeds strain number)/check plot weeds strain counts * 100%
During dispenser, weeds are not unearthed, by above result, can find out, in the situation that in the present composition, single dose active ingredient is used lower than single dose, herbicide spectrum herbicidal effect is separately better than to single dose, sealer 48% mefenacet 2% pyrazosulfuron wetting powder dispenser preventive effect is a little less than the present composition.
Embodiment 3(1.2% bensulfuron-methyl pyriftalid granule).
Above-mentioned material is added in cone-type mixer and mixed together, by airslide disintegrating mill, pulverize, the material after pulverizing mixes through cone-type mixer again, and mixed fineness of materials 98%, by 600 mesh standard sieves, obtains wetting powder.Will this wetting powder drop in granulating disc and add water granulation,, screening dry by drying, cooling cylinder are cooling, make 1.2% bensulfuron-methyl pyriftalid granule.
The present embodiment is used for preventing and kill off transplanted rice field annual weed: annual gramineous weed, sedge weed and broad leaved weed are added up, spraying time is after rice transplanting 14 days, and weeds are partly unearthed, the approximately 2 leaf phases of grassy weed, broad leaved weed 1 leaf 1 heart left and right, application method is for spreading fertilizer over the fields.5 processing are established in experiment altogether, processing 1 is 1.2% bensulfuron-methyl pyriftalid granule, processing 2 is 0.2% bensulfuron-methyl granule, processing 3 is single dose 1.2% pyriftalid granule, processing 4 is 48% mefenacet 2% pyrazosulfuron wetting powder (medicine local method is spread fertilizer over the fields), process 5 for contrast (not weeding of not dispenser), add up and contrast and respectively process number of weeds amount and preventive effect after 20 days, result of the test is in Table 3.
Table 3,1.2% bensulfuron-methyl pyriftalid granule field control effectiveness test result.
Remarks: strain preventive effect=(check plot weeds strain number-treatment region weeds strain number)/check plot weeds strain counts * 100%
During dispenser, part weeds are partly unearthed, grass leaf in ages 2 left and right, by above result, can find out, in the situation that in the present composition, single dose active ingredient is used lower than single dose, herbicide spectrum herbicidal effect is separately better than to single dose, sealer 48% mefenacet 2% pyrazosulfuron wetting powder spraying time is excessively late, and grassy weed preventive effect is poor.
In sum, Herbicidal combinations of the present invention is outstanding to transplanted rice field, seedling throwing field annual weed drug effect under appropriate dose, expand single dose herbicide spectrum, compare conventional sealer and widen administration time, preventive effect is higher than single dose, good to Security of rice, be the herbicide composition of preventing and kill off paddy field barnyard grass, sedge weed and annual broadleaf weed.
Claims (4)
1. a Herbicidal combinations that contains bensulfuron-methyl and pyriftalid, is characterized in that: active ingredient is bensulfuron-methyl, pyriftalid, and bensulfuron-methyl and the pyriftalid ratio of quality and the number of copies in Herbicidal combinations is 8:1～1:10.
2. the Herbicidal combinations that contains bensulfuron-methyl and pyriftalid according to claim 1, is characterized in that: bensulfuron-methyl and the pyriftalid ratio of quality and the number of copies in Herbicidal combinations is 5:1～1:8.
3. the Herbicidal combinations that contains bensulfuron-methyl and pyriftalid according to claim 1, is characterized in that: described Herbicidal combinations can be processed into water dispersible granules, wetting powder or granule.
4. the Herbicidal combinations that contains bensulfuron-methyl and pyriftalid according to claim 1, is characterized in that: be applicable to prevent and kill off paddy field annual weed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310416703.8A CN103518759A (en) | 2013-09-12 | 2013-09-12 | Weeding composition containing bensulfuron methyl and pyriftalid |
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| CN201310416703.8A CN103518759A (en) | 2013-09-12 | 2013-09-12 | Weeding composition containing bensulfuron methyl and pyriftalid |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104757009A (en) * | 2015-03-17 | 2015-07-08 | 北京燕化永乐生物科技股份有限公司 | Compounded herbicide |
| CN104757012A (en) * | 2015-03-27 | 2015-07-08 | 北京燕化永乐生物科技股份有限公司 | Weeding composition |
| CN106278599A (en) * | 2016-08-11 | 2017-01-04 | 中国农业大学 | Fertilizer granules containing pyriftalid and bensulfuron-methyl and its preparation method and application |
| CN114982772A (en) * | 2022-05-20 | 2022-09-02 | 河南省农业科学院植物保护研究所 | Ternary weeding composition for alfalfa field |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1155381A (en) * | 1995-10-13 | 1997-07-30 | 希巴-盖吉股份公司 | Herbicidal synergistic composition, and method of controlling weeds |
-
2013
- 2013-09-12 CN CN201310416703.8A patent/CN103518759A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1155381A (en) * | 1995-10-13 | 1997-07-30 | 希巴-盖吉股份公司 | Herbicidal synergistic composition, and method of controlling weeds |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104757009A (en) * | 2015-03-17 | 2015-07-08 | 北京燕化永乐生物科技股份有限公司 | Compounded herbicide |
| CN104757012A (en) * | 2015-03-27 | 2015-07-08 | 北京燕化永乐生物科技股份有限公司 | Weeding composition |
| CN106278599A (en) * | 2016-08-11 | 2017-01-04 | 中国农业大学 | Fertilizer granules containing pyriftalid and bensulfuron-methyl and its preparation method and application |
| CN106278599B (en) * | 2016-08-11 | 2017-12-19 | 中国农业大学 | Fertilizer granules containing pyriftalid and bensulfuron-methyl and its preparation method and application |
| CN114982772A (en) * | 2022-05-20 | 2022-09-02 | 河南省农业科学院植物保护研究所 | Ternary weeding composition for alfalfa field |
| CN114982772B (en) * | 2022-05-20 | 2023-08-08 | 河南省农业科学院植物保护研究所 | Ternary weeding composition for alfalfa fields |
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Application publication date: 20140122 |