CN104886099A - Weeding composition for rice field - Google Patents
Weeding composition for rice field Download PDFInfo
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- CN104886099A CN104886099A CN201510338167.3A CN201510338167A CN104886099A CN 104886099 A CN104886099 A CN 104886099A CN 201510338167 A CN201510338167 A CN 201510338167A CN 104886099 A CN104886099 A CN 104886099A
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Abstract
The invention discloses weeding composition for the rice field. The weeding composition comprises an effective ingredient A, an effective ingredient B and an appropriate pesticide auxiliary, wherein the effective ingredient A is fluoro-pyribenzoxim, the effective ingredient B is selected from one of Propyrisulfuron, metazosulfuron and halosulfuron-methyl, a weight ratio of the effective ingredient A to the effective ingredient B in the composition is (10: 1)-(1: 10), the total weight of the effective ingredient A and the effective ingredient B accounts for 0.1%-90% of the weight of the composition, and the balance is the pesticide auxiliary. The weeding composition can be prepared to form one of a suspension agent, a dispersible oil suspension agent, wettable powder or a water dispersible granule according to application needs, and is used for controlling annual weed in the rice field, especially annual dominant weed such as Leersia hexandra, Heleocharis plantagineiformis and Monochoria vaginalis in the rice field. The effect of the composition for controlling the annual weed in the rice field is remarkably better than that of single pesticide, the pesticide application quantity is reduced, and the pesticide resistance of the weed is delayed.
Description
Technical field
The invention belongs to technical field of pesticide, be specifically related to a kind of Herbicidal composition for rice field, be applicable to prevent and kill off paddy field annual weed, especially with Leersia Sw (Leersia hexandra, LEEHE), wild water chestnut (Heleocharis plantagineiformis, HELPL), Monochoria vaginalis (Monochoria vaginalis, MONVA) the paddy field annual weed that is advantage weeds.
Background technology
Fluorine phonetic oxime grass ether on the ad-hoc location of pyrimidine salicylic acid compounds, introduces trifluoromethyl replace gained, belong to inhibitor of acetolactate synthetase, it demonstrates perennial and annual gramineous weed and excellent prevents and kill off performance, it is wide spectrum selective post-emergence herbicide, particularly to preventing and kill off paddy field barnyard grass, Paspalum distichum, rice barnyard grass, red pin barnyard grass have special efficacy, mu consumption is 2-6 gram, and fluorine phonetic oxime grass ether has the safety of height to paddy rice
Promazine Sulfometuron Methyl (Propyrisulfuron), be a kind of sulfonylurea selectivity broad-spectrum herbicide, there is residual effect effect, to the weeds of resistance to sulfonylurea herbicide, there is good preventive effect, effective to above the average age for marriage barnyard grass, nutgrass flatsedge, broadleaved herb, can foliar spray, get rid of and execute.
Halosulfuronmethyl (halosulfuron-methyl) is absorption agricultural compound in sulfonylurea, can be plant stem-leaf and root absorption, weeds first stop growing then withered, are mainly used in preventing and kill off annual broadleaf weed and sedge weed, have special efficacy to the rhizome of nutgrass flatsedge.Halosulfuronmethyl (halosulfuron-methrl), for sulfonylurea wide spectrum selectivity inner-adsorption conduction-type herbicide, absorbed mainly through root system, also absorb by cauline leaf, shift rapidly in weeds plant body, Developing restraint, weeds are dead gradually, annual broadleaf weed and sedge weed can be prevented and kill off, be applicable to the crop such as corn, paddy rice.
Piperazine pyrazosulfuron is the sulfonylurea herbicide of Misao Kusano's exploitation. being mainly used in preventing and kill off the piemarker of paddy field and wheat paddock, Amaranthus retroflexus, lady's-grass and barnyard grass, is on weed killer herbicide halosulfuronmethyl architecture basics. and optimize further and obtain.
The present inventor is to the phonetic oxime grass ether of fluorine and promazine Sulfometuron Methyl, piperazine pyrazosulfuron, halosulfuronmethyl mixture conducts in-depth research, find the phonetic oxime grass ether of fluorine and promazine Sulfometuron Methyl, piperazine pyrazosulfuron, halosulfuronmethyl mixture has Synergistic to respond to target weeds, especially to the phonetic oxime grass ether of fluorine and promazine Sulfometuron Methyl, piperazine pyrazosulfuron, halosulfuronmethyl is composite to Leersia Sw (Leersia hexandra, LEEHE), wild water chestnut (Heleocharis plantagineiformis, HELPL), Monochoria vaginalis (Monochoria vaginalis, MONVA) there is the response of significant Synergistic.
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 are good and the lasting period is long, are conducive to the Herbicidal combinations of the farmland weed comprehensive regulation.
Another object of the present invention is to provide and is used for preventing and kill off farmland weed by this Herbicidal combinations, is particularly useful for preventing and kill off paddy field annual weed etc.
Technical scheme of the present invention is made up of effective constituents A, B and suitable insecticides adjuvant, and wherein effective constituents A is fluorine phonetic oxime grass ether, active ingredient B is selected from one in promazine Sulfometuron Methyl, piperazine pyrazosulfuron, halosulfuronmethyl; Effective constituents A and B weight ratio 10:1-1:10 in the composition, effective constituents A and B weight summation percentage by weight are in the composition 0.1%-90%, and all the other are insecticides adjuvant.
Described Herbicidal combinations those skilled in the art according to known method, can select suitable pesticidal preparations auxiliary element, excipient suspending agent, dispersible oil-suspending agent, wetting powder or water dispersible granules etc. and are applicable to the formulation that agriculturally uses.
The processing technology of the various preparation of Herbicidal combinations of the present invention is prior art, can change to some extent according to different situations.
The insecticides adjuvant used in Herbicidal combinations of the present invention comprises solvent, emulsifier, wetting agent, stabilizing agent, dispersant, disintegrant, binding agent, thickener, pH adjusting agent, defoamer, antifreezing agent, filler, carrier etc., and to be of value to active ingredient stable and play the known substance of drug effect in the formulation, be all various compositions that are conventional in pesticidal preparations or permission use, concrete composition and consumption are determined by test according to recipe requirements.
Composition pesticide provided by the invention, should use in paddy field annual weed 3 ~ 5 leaf phase in use.
Composition pesticide provided by the invention, usually adopts cauline leaf spray method to use, also can adopt other operation techniques agriculturally applied as required.The frequency of administration of Herbicidal combinations of the present invention and amount of application change with crops, weeds, weather condition and have small variations, can by the object using suitable dosage reach effectively control.
Described suspending agent formulation by weight percentage consists of: fluorine phonetic oxime grass ether 0.1 ~ 40%, one 0.1 ~ 40% in promazine Sulfometuron Methyl, piperazine pyrazosulfuron, halosulfuronmethyl, dispersant 0.01 ~ 17%, wetting agent 0.01-17%, thickener 0.01 ~ 3%, deionized water carrier complements to 100%.Concrete production stage is: by active ingredient and the mixing of other auxiliary agent, after sand milling in high speed shear dispersion, sand mill, form high dispersive, stable suspension system in water-medium, the suspending agent of obtained corresponding weight percentage.
Described dispersible oil-suspending agent formulation by weight percentage consist of: fluorine phonetic oxime grass ether 0.1 ~ 40%, one 0.1 ~ 40% in promazine Sulfometuron Methyl, piperazine pyrazosulfuron, halosulfuronmethyl, dispersant 0.02 ~ 14%, wetting agent 0.02-13%, thickener 0.02 ~ 3%, liquid-carrier complements to 100%.Concrete production stage is: by active ingredient and the mixing of other auxiliary agent, after sand milling in high speed shear dispersion, sand mill, form high dispersive, stable suspension system in oil system medium, the oil-suspending agent of obtained corresponding weight percentage.
Described dosage form of water dispersible granule by weight percentage consists of: fluorine phonetic oxime grass ether 0.1 ~ 80%, one 0.1 ~ 80% in promazine Sulfometuron Methyl, piperazine pyrazosulfuron, halosulfuronmethyl, dispersant 0.01 ~ 12%, wetting agent 0.2 ~ 15%, disintegrant 0.1 ~ 11%, solid carrier complements to 100%.Concrete production stage is: active ingredient and other auxiliary agent are mixed, and pulverizes with micro jet, through mediating, then adding in fluidized-bed granulation dryer and carrying out granulation, drying, screening, the water dispersible granules of obtained corresponding weight percentage.
Described wettable powder formulation by weight percentage consists of: fluorine phonetic oxime grass ether 0.1 ~ 80%, one 0.1 ~ 80% in promazine Sulfometuron Methyl, piperazine pyrazosulfuron, halosulfuronmethyl, dispersant 0.2 ~ 15%, wetting agent 0.1 ~ 10%, solid carrier complements to 100%.Concrete production stage is: by active ingredient and the mixing of other auxiliary agent, again through air-flow crushing after mechanical crushing, mix, the wetting powder of obtained corresponding weight percentage.
Described defoamer can be one or more in silicone compound, epoxidized soybean oil, methyl alcohol, silicone oil etc.
Described antifreezing agent can be one or more in glycerine, propane diols, diethylene glycol (DEG), urea etc.
Described wetting agent can be one or more in lauryl sodium sulfate, neopelex, sodium butylnaphthalenesulfonate, sodium alkyl sulfonate, aerosol-OT salt, aliphatic alcohol polyethenoxy (6-7) ether, the withered powder of tea, spaonin powder, soapberry powder etc.
Described dispersant can be alkylphenol polyoxyethylene formaldehyde condensation products, naphthalenesulfonate formaldehyde condensation compound, to one or more in methoxyl group fatty acyl anilinesulfonic acid, lignosulfonates, polycarboxylate, alkylphenol polyoxyethylene sulphate, alkyl benzene sulfonate calcium salt, fatty acid ester sulphate, alkylphenol polyoxyethylene, fatty alcohol-polyoxyethylene ether etc.
Described disintegrant can be one or more in sodium carboxymethyl starch, low-substituted hydroxypropyl cellulose, Ac-Di-Sol, PVPP, shitosan, sodium alginate sodium bicarbonate, magnesium chloride, aluminium chloride, sodium chloride, urea, ammonium sulfate, bentonite etc.
Described thickener can be one or more in polyvinyl acetate, xanthans, gelatin, gum Arabic, aluminium-magnesium silicate, phenolic resins, CMC, sodium alginate etc.
Described solid carrier can be one or more in precipitated calcium carbonate, potter's clay, kaolin, diatomite, bentonite, white carbon, clay, attapulgite, talcum powder, quartz sand etc.
Described liquid-carrier can be one or more in exquisite soybean oil, corn oil, rapeseed oil, turpentine oil, methyl oleate, cocoa butter, palm wet goods.
Described deionized water is industrialization deionized water.
Binary combination of the present invention (one namely in fluorine phonetic oxime grass ether promazine Sulfometuron Methyl, piperazine pyrazosulfuron, halosulfuronmethyl) expands herbicide spectrum, composition has Synergistic response to target, preventing and kill off of paddy field weed provides excellent fix, has positive effect to the weeds comprehensive regulation.
Embodiment
In order to make object of the present invention, technical scheme and advantage more short and sweet, the following specific embodiment of the present invention is described, but the present invention is only limitted 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 the restriction to scope of the present invention.It should be pointed out that all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Evaluate weed killer herbicide associated form (NY/T 1155.7-2006) according to Gowing method, its formula is as follows:
In formula:
X be fluorine phonetic oxime grass ether alone with certain dosage time fresh weight inhibition to target weeds;
Fresh weight inhibition to target weeds when Y is a kind of alone with certain dosage in promazine Sulfometuron Methyl, piperazine pyrazosulfuron, halosulfuronmethyl;
E
0for when fluorine phonetic oxime grass ether, promazine Sulfometuron Methyl, piperazine pyrazosulfuron, a kind of two kinds of pharmacy mix in halosulfuronmethyl to the theoretical value of target weeds fresh weight inhibition or desired value;
Be measured value or the observation of contrast to target weeds fresh weight inhibition when E is a kind of two kinds of pharmacy mix in fluorine phonetic oxime grass ether, promazine Sulfometuron Methyl, piperazine pyrazosulfuron, halosulfuronmethyl.
Evaluation criterion: as E ﹣ E
0during > 10%, be expressed as synergistic function; As ﹣ 10%≤E ﹣ E
0when≤10%, show as collaborative summation action; As E ﹣ E
0during < ﹣ 10%, show as joint action of antagonism.
Embodiment 1: fluorine phonetic oxime grass ether and promazine Sulfometuron Methyl, piperazine pyrazosulfuron, one in halosulfuronmethyl and composite to Leersia Sw (Leersia hexandra, LEEHE), wild water chestnut (Heleocharis plantagineiformis, HELPL), Monochoria vaginalis (Monochoria vaginalis, MONVA) Toxicity Determination test.
15 days fluorine phonetic oximes grass ether after table 1, medicine, promazine Sulfometuron Methyl and composite in greenhouse 3 the leaf phase LEEHE, HELPL, MONVA control result.
Weed killer herbicide associated form is evaluated according to Colby method, table 1 data show, fluorine phonetic oxime grass ether, promazine Sulfometuron Methyl binary combination are to Leersia Sw (Leersia hexandra, LEEHE), wild water chestnut (Heleocharis plantagineiformis, HELPL), Monochoria vaginalis (Monochoria vaginalis, MONVA) synergistic effect is remarkable, and E-E0 value is all greater than 20%.
15 days fluorine phonetic oximes grass ether after table 2, medicine, its pyrazosulfuron and composite in greenhouse 1 the leaf phase LEEHE, HELPL, MONVA control result.
Weed killer herbicide associated form is evaluated according to Colby method, table 2 data show, fluorine phonetic oxime grass ether, its pyrazosulfuron binary combination are to Leersia Sw (Leersia hexandra, LEEHE), wild water chestnut (Heleocharis plantagineiformis, HELPL), Monochoria vaginalis (Monochoria vaginalis, MONVA) synergistic effect is remarkable, and E-E0 value is all greater than 20%.
15 days fluorine phonetic oximes grass ether after table 3, medicine, halosulfuronmethyl and composite in greenhouse 1 the leaf phase LEEHE, HELPL, MONVA control result.
Weed killer herbicide associated form is evaluated according to Colby method, table 3 data show, fluorine phonetic oxime grass ether, halosulfuronmethyl binary combination are to Leersia Sw (Leersia hexandra, LEEHE), wild water chestnut (Heleocharis plantagineiformis, HELPL), Monochoria vaginalis (Monochoria vaginalis, MONVA) synergistic effect is remarkable, E-E
0value is all greater than 20%.
Embodiment 2:(fluorine phonetic oxime grass ether promazine Sulfometuron Methyl water dispersible granules).
Above-mentioned material is added in cone-type mixer together and mixes; pulverize by airslide disintegrating mill; material after pulverizing mixes through cone-type mixer again; mixed fineness of materials 98% is by 600 mesh standard sieves; add in kneader and be kneaded into plasticity material; finally this material is put into Squeezinggranulator extruder grain, after drying, screening, after granulation, namely obtain the fluorine phonetic oxime grass ether promazine Sulfometuron Methyl water dispersible granules of corresponding percentage by weight.
Embodiment 3:(fluorine phonetic oxime grass ether piperazine pyrazosulfuron water dispersible granule).
Above-mentioned material is added in cone-type mixer together and mixes; pulverize by airslide disintegrating mill; material after pulverizing mixes through cone-type mixer again; mixed fineness of materials 98% is by 600 mesh standard sieves; add in kneader and be kneaded into plasticity material; finally this material is put into Squeezinggranulator extruder grain, after drying, screening, after granulation, namely obtain the fluorine phonetic oxime grass ether piperazine pyrazosulfuron water dispersible granule of corresponding percentage by weight.
Embodiment 4:(fluorine phonetic oxime grass ether halosulfuronmethyl water dispersible granules).
Above-mentioned material is added in cone-type mixer together and mixes; pulverize by airslide disintegrating mill; material after pulverizing mixes through cone-type mixer again; mixed fineness of materials 98% is by 600 mesh standard sieves; add in kneader and be kneaded into plasticity material; finally this material is put into Squeezinggranulator extruder grain, after drying, screening, after granulation, namely obtain the fluorine phonetic oxime grass ether halosulfuronmethyl water dispersible granules of corresponding percentage by weight.
Embodiment 5:(fluorine phonetic oxime grass ether promazine Sulfometuron Methyl wetting powder).
Above-mentioned material is added in cone-type mixer together and mixes, pulverize by airslide disintegrating mill, material after pulverizing is again through cone-type mixer mixing, and mixed fineness of materials 98%, by 600 mesh standard sieves, obtains the fluorine phonetic oxime grass ether promazine Sulfometuron Methyl wetting powder of corresponding percentage by weight.
Embodiment 6:(fluorine phonetic oxime grass ether piperazine pyrazosulfuron wetting powder).
Above-mentioned material is added in cone-type mixer together and mixes, pulverize by airslide disintegrating mill, material after pulverizing is again through cone-type mixer mixing, and mixed fineness of materials 98%, by 600 mesh standard sieves, obtains the fluorine phonetic oxime grass ether piperazine pyrazosulfuron wetting powder of corresponding percentage by weight.
Embodiment 7:(fluorine phonetic oxime grass ether halosulfuronmethyl wetting powder).
Above-mentioned material is added in cone-type mixer together and mixes, pulverize by airslide disintegrating mill, material after pulverizing is again through cone-type mixer mixing, and mixed fineness of materials 98%, by 600 mesh standard sieves, obtains the fluorine phonetic oxime grass ether halosulfuronmethyl wetting powder of corresponding percentage by weight.
Embodiment 8:(fluorine phonetic oxime grass ether promazine Sulfometuron Methyl suspending agent).
Pulverized in advance in proportion by above-mentioned formula, then add in sand mill and grind, after high shear mixing, allotment obtains the fluorine phonetic oxime grass ether promazine Sulfometuron Methyl suspending agent of corresponding percentage by weight.
Embodiment 9:(fluorine phonetic oxime grass ether piperazine pyrazosulfuron suspending agent).
Pulverized in advance in proportion by above-mentioned formula, then add in sand mill and grind, after high shear mixing, allotment obtains the fluorine phonetic oxime grass ether piperazine pyrazosulfuron suspending agent of corresponding percentage by weight.
Embodiment 10:(fluorine phonetic oxime grass ether halosulfuronmethyl suspending agent).
Pulverized in advance in proportion by above-mentioned formula, then add in sand mill and grind, after high shear mixing, allotment obtains the fluorine phonetic oxime grass ether halosulfuronmethyl suspending agent of corresponding percentage by weight.
Embodiment 11:(fluorine phonetic oxime grass ether promazine Sulfometuron Methyl dispersibles oil-suspending agent).
Above-mentioned material (except organobentonite) is joined in reactor mixer together, stir 2 hours, open pan feeding valve at the bottom of still, material is injected stage sand grinding machine to grind, fineness of materials 98% after grinding is by discharging after 1-5um, material puts into high-shear emulsifying still again together with the organobentonite dissolved in advance, and the fluorine phonetic oxime grass ether promazine Sulfometuron Methyl that namely can be made into the good corresponding percentage by weight of flowing to property after emulsification dispersibles oil-suspending agent.
Embodiment 12:(fluorine phonetic oxime grass ether piperazine pyrazosulfuron dispersibles oil-suspending agent).
Above-mentioned material (except organobentonite) is joined in reactor mixer together, stir 2 hours, open pan feeding valve at the bottom of still, material is injected stage sand grinding machine to grind, fineness of materials 98% after grinding is by discharging after 1-5um, material puts into high-shear emulsifying still again together with the organobentonite dissolved in advance, and the fluorine phonetic oxime grass ether piperazine pyrazosulfuron that namely can be made into the good corresponding percentage by weight of flowing to property after emulsification dispersibles oil-suspending agent.
Embodiment 13:(fluorine phonetic oxime grass ether halosulfuronmethyl dispersibles oil-suspending agent).
Above-mentioned material (except organobentonite) is joined in reactor mixer together, stir 2 hours, open pan feeding valve at the bottom of still, material is injected stage sand grinding machine to grind, fineness of materials 98% after grinding is by discharging after 1-5um, material puts into high-shear emulsifying still again together with the organobentonite dissolved in advance, and the fluorine phonetic oxime grass ether halosulfuronmethyl that namely can be made into the good corresponding percentage by weight of flowing to property after emulsification dispersibles oil-suspending agent.
Embodiment 14: fluorine phonetic oxime grass ether, promazine Sulfometuron Methyl herbicidal composition prevent and kill off transplant field paddy rice annual weed field control effectiveness test.
Test site is positioned at peaceful town, Panjin City Panshan County, Liaoning Province, transplant field paddy rice annual weed includes but are not limited to Leersia Sw (Leersia hexandra, LEEHE), false loosestrife (Ludwigia prostrata, LUDPR), Paspalum distichum (Paspalum paspaloides, PASPA), firefly Lin (Scirpus juncoides, SCIJU)
Table 4, to transplanted rice field annual weed field control effectiveness test result.
Embodiment 15: fluorine phonetic oxime grass ether, piperazine pyrazosulfuron herbicidal composition prevent and kill off rice seedling throwing field annual weed field control effectiveness test.
Test site is positioned at Chen Jiang town, Zhong Kai district of Huizhou City, rice seedling throwing field annual weed comprises but not only for firefly Lin (Scirpus juncoides, SCIJU), Monochoria vaginalis (Monochoria vaginalis, MONVA), barnyard grass (Echinochloa crusgalli, ECHCR), false rice (Leersia japonica, LEEJA)
Table 5, to seedling throwing field annual weed field control effectiveness test result.
Claims (3)
1. a Herbicidal composition for rice field, is characterized in that: be made up of effective constituents A, B and suitable insecticides adjuvant, and wherein effective constituents A is fluorine phonetic oxime grass ether, active ingredient B is selected from one in promazine Sulfometuron Methyl, piperazine pyrazosulfuron, halosulfuronmethyl; Effective constituents A and B weight ratio 10:1-1:10 in the composition, effective constituents A and B weight summation percentage by weight are in the composition 0.1%-90%, and all the other are insecticides adjuvant.
2. Herbicidal composition for rice field according to claim 1, is characterized in that: the formulation of described Herbicidal combinations is suspending agent, the one dispersibled in oil-suspending agent, wetting powder or water dispersible granules.
3. Herbicidal composition for rice field according to claim 1 is preventing and kill off the application in paddy field annual weed.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104886065A (en) * | 2015-06-04 | 2015-09-09 | 广东中迅农科股份有限公司 | Weeding composition containing fluoropyrimidine oxime ether and benzobicylon |
| CN105851036A (en) * | 2016-04-30 | 2016-08-17 | 广东中迅农科股份有限公司 | Halosulfuron-methyl dispersible oil suspending agent and preparation method thereof |
| CN108235990A (en) * | 2016-12-27 | 2018-07-03 | 江苏龙灯化学有限公司 | A kind of Herbicidal combinations and its application |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104886065A (en) * | 2015-06-04 | 2015-09-09 | 广东中迅农科股份有限公司 | Weeding composition containing fluoropyrimidine oxime ether and benzobicylon |
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| CN108235990A (en) * | 2016-12-27 | 2018-07-03 | 江苏龙灯化学有限公司 | A kind of Herbicidal combinations and its application |
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