CN103688967A - Weeding composition containing halosulfuron-methyl and pyriftalid - Google Patents
Weeding composition containing halosulfuron-methyl and pyriftalid Download PDFInfo
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- CN103688967A CN103688967A CN201310480228.0A CN201310480228A CN103688967A CN 103688967 A CN103688967 A CN 103688967A CN 201310480228 A CN201310480228 A CN 201310480228A CN 103688967 A CN103688967 A CN 103688967A
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- pyriftalid
- halosulfuronmethyl
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Abstract
The invention relates to a weeding composition containing halosulfuron-methyl and pyriftalid, and the effective components are halosulfuron-methyl and pyriftalid. The effective components are halosulfuron-methyl and pyriftalid, and the weight parts of halosulfuron-methyl and pyriftalid in the weeding composition is 10:1-1:20. The mixing of halosulfuron-methyl and pyriftalid has obvious synergism for controlling annual weed in paddy field, and can improve weeding effect and enlarge weed control spectrum.
Description
Technical field
The invention belongs to agriculture weeding technical field, be specifically related to a kind of Herbicidal composition for rice field that halosulfuronmethyl, 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 sealing weed killer herbicide 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, weeds be partly unearthed to before weeds 3 leaves during this period of time conventional sealing weed killer herbicide cannot reach effective Weed control effect.
Halosulfuronmethyl is wide spectrum selectivity inner-adsorption conduction-type herbicide for sulfonylurea rice field, mainly by root system, be absorbed, 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, and low age barnyard grass is had to certain preventive effect.
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 chickweed, dayflowers, 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 halosulfuronmethyl, pyriftalid, on the basis of a large amount of formula indoor screening tests and field medicine effect test, find that halosulfuronmethyl, pyriftalid are mixed, within the scope of certain mixed ratio, paddy field weed is shown to synergistic function, expand herbicide spectrum, relatively conventional sealing weed killer herbicide has been widened administration time scope, after further study, has completed the present invention.
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 paddy field sealing weed killer herbicide and cauline leaf processes weed killer herbicide and 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 weed comprehensive regulation.
Technical scheme of the present invention: a kind of Herbicidal combinations that contains halosulfuronmethyl and pyriftalid, active ingredient is halosulfuronmethyl, pyriftalid, halosulfuronmethyl and the pyriftalid parts by weight in Herbicidal combinations are 10:1～1:20.
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, fertilizer granules.
Above-mentioned Herbicidal combinations is processed into water dispersible granules, and each weight percentages of components is: halosulfuronmethyl 0.01%～40%, and pyriftalid 0.1%～80%, surfactant 1%～20%, all the other are carrier.
Above-mentioned Herbicidal combinations is processed into wetting powder, and each weight percentages of components is: halosulfuronmethyl 0.01%～40%, and pyriftalid 0.1%～80%, surfactant 1%～20%, all the other are carrier.
Described Herbicidal combinations is processed into granule, and each weight percentages of components is: halosulfuronmethyl 0.01%～20%, and pyriftalid 0.1%～40%, surfactant 1%～15%, all the other are carrier.
Described Herbicidal combinations is processed into water dispersible granules, wetting powder, granule, and surfactant is one or more mixing of neopelex, lauryl sodium sulfate, lignosulfonates, aliphatic alcohol sulfate, aliphatic alcohol polyethenoxy, sodium butylnaphthalenesulfonate, naphthalenesulfonate formaldehyde condensation compound and polycarboxylic acid; Carrier is one or more the mixing in kaolin, attapulgite, bentonite, diatomite, talcum powder, precipitated calcium carbonate, urea, white carbon.
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 transplanted rice field, seedling throwing 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 halosulfuronmethyl and pyriftalid single dose, within the scope of 10:1～1:20, barnyard grass is shown to obvious 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, conventional rice transplant field, seedling throwing field seal weed killer herbicide relatively, widened administration time scope, at transplanted rice field, seedling throwing field rice striking root, to weeds 3 leaves, all can use, both possessed the sealing feature of common sealing 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.
3, provided by the invention is Herbicidal combinations, can reduce the resistance risk that the single halosulfuronmethyl of long-term use or pyriftalid produce, and extends the service life of medicament, the comprehensive regulation important in inhibiting to Weed Resistance.
Accompanying drawing explanation
Fig. 1, pyriftalid and halosulfuronmethyl are mixed to the equivalent line chart of the synergy of 2 leaf phase barnyard grasses.
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 mono-pyriftalid and halosulfuronmethyl and the toxicity test being mixed to 2 leaf phase barnyard grasses thereof.
Table 1, pyriftalid and halosulfuronmethyl and the regression relation being mixed to the dose-response of 2 leaf phase barnyard grasses thereof.
See Fig. 1 (Fig. 1 draws with reference to NY/T1155.7-2006, and draw data derives from table 1), in Fig. 1: the dosage that A is halosulfuronmethyl (g a.i./hm
2), halosulfuronmethyl ED
90value 11.42.B is dosage (the g a.i./hm of pyriftalid
2), pyriftalid ED
90value 30.21.C surveys the equivalent line of prediction for each ratio, and D is theoretical equivalent line.Can draw pyriftalid and halosulfuronmethyl in 20:1,15:1,10:1,5:1,1:1,1:3,1:5,1:7,1:10 ratio to the equivalent point of barnyard grass all under theoretical equivalent line, show as synergistic function; The equivalent point line that each ratio is corresponding is predicted, pyriftalid and halosulfuronmethyl at the prediction equivalent line between 20:1～1:10 all under theoretical equivalent line, to barnyard grass show as synergistic function and between 10:1～1:1 synergy obvious.
Embodiment 2(80% halosulfuronmethyl 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% halosulfuronmethyl Pyriftalid water dispersible granule after being dried, sieving.
The present embodiment is used for preventing and treating 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 pesticide-clay mixture 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% halosulfuronmethyl Pyriftalid water dispersible granule, processing 2 is 20% halosulfuronmethyl water dispersible granules, processing 3 is 40% Pyriftalid water dispersible granule, processing 4 is 50% mefenacet halosulfuronmethyl 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 medicine after 20 days, result of the test is in Table 2.
Table 2,80% halosulfuronmethyl 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, sealing weed killer herbicide 50% mefenacet halosulfuronmethyl wetting powder spraying time is excessively late, poor to grassy weed preventive effect, show that pyriftalid and conventional sealing weed killer herbicide relative with halosulfuronmethyl composition widened spraying time scope.
Embodiment 3(80% halosulfuronmethyl pyriftalid wetting powder).
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, and mixed fineness of materials 98%, by 600 mesh standard sieves, obtains 80% halosulfuronmethyl 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 pesticide-clay mixture 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% halosulfuronmethyl pyriftalid wetting powder, processing 2 is 20% halosulfuronmethyl wetting powder, processing 3 is 40% pyriftalid wetting powder, processing 4 is 50% mefenacet halosulfuronmethyl 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 3.
Table 3,80% halosulfuronmethyl 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 separately lower than single dose, herbicide spectrum herbicidal effect is separately better than to single dose, sealing weed killer herbicide 50% mefenacet halosulfuronmethyl wetting powder dispenser preventive effect is a little less than the present composition, show under routine dose, pyriftalid and halosulfuronmethyl composition do not seal and process weeding before its weeds of routine sealing herbicide treatment are not unearthed, and can obtain the preventive effect of having omited than routine sealing weed killer herbicide.
Embodiment 4(1.6% halosulfuronmethyl 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 1.6% halosulfuronmethyl 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, weeds are partly unearthed, the approximately 2 leaf phases of biggrassweeds, 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 1.6% halosulfuronmethyl pyriftalid granule, processing 2 is 0.15% halosulfuronmethyl granule, processing 3 is 1.8% pyriftalid granule, processing 4 is 50% mefenacet halosulfuronmethyl wetting powder (pesticide-clay mixture 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 4.
Table 4,1.6% halosulfuronmethyl 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 separately lower than single dose, herbicide spectrum herbicidal effect is separately better than to single dose, sealing weed killer herbicide 50% mefenacet halosulfuronmethyl wetting powder spraying time is excessively late, grassy weed preventive effect is poor, shows that pyriftalid and conventional sealing weed killer herbicide relative with halosulfuronmethyl composition widened spraying time scope.
In sum, Herbicidal combinations of the present invention is outstanding to transplanted rice field, seedling throwing field annual weed drug effect under appropriate dose, composition is to barnyard grass synergy, expand single dose herbicide spectrum, relatively conventional sealing weed killer herbicide is widened administration time, good to Security of rice, be the herbicide composition of preventing and kill off paddy field, transplant field annual weed.
Claims (2)
1. a Herbicidal combinations that contains halosulfuronmethyl and pyriftalid, is characterized in that: active ingredient is halosulfuronmethyl, pyriftalid, and halosulfuronmethyl and the pyriftalid parts by weight in Herbicidal combinations are 10:1～1:20.
2. the Herbicidal combinations that contains halosulfuronmethyl and pyriftalid according to claim 1, is characterized in that: be applicable to prevent and kill off paddy field annual weed.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104115858A (en) * | 2014-06-24 | 2014-10-29 | 江苏省激素研究所股份有限公司 | Paddy field herbicide composition |
| 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 |
| CN106818817A (en) * | 2015-12-03 | 2017-06-13 | 江苏龙灯化学有限公司 | A kind of Herbicidal combinations |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1541532A (en) * | 1995-10-13 | 2004-11-03 | �����ɷ� | Herbicidal synergistic composition, and method of controlling weeds |
| CN101999361A (en) * | 2010-12-27 | 2011-04-06 | 陕西韦尔奇作物保护有限公司 | Herbicide composition containing cyhalofop-butyl and pyrimidyloxy (sulfur) benzoate |
-
2013
- 2013-10-14 CN CN201310480228.0A patent/CN103688967A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1541532A (en) * | 1995-10-13 | 2004-11-03 | �����ɷ� | Herbicidal synergistic composition, and method of controlling weeds |
| CN101999361A (en) * | 2010-12-27 | 2011-04-06 | 陕西韦尔奇作物保护有限公司 | Herbicide composition containing cyhalofop-butyl and pyrimidyloxy (sulfur) benzoate |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104115858A (en) * | 2014-06-24 | 2014-10-29 | 江苏省激素研究所股份有限公司 | Paddy field herbicide composition |
| 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 |
| CN106818817A (en) * | 2015-12-03 | 2017-06-13 | 江苏龙灯化学有限公司 | A kind of Herbicidal combinations |
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Application publication date: 20140402 |