CN110100835A - A kind of mixed herbicidal composite containing trifluoro ketone grass ether and pyrazosulfuron - Google Patents
A kind of mixed herbicidal composite containing trifluoro ketone grass ether and pyrazosulfuron Download PDFInfo
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- CN110100835A CN110100835A CN201910394956.7A CN201910394956A CN110100835A CN 110100835 A CN110100835 A CN 110100835A CN 201910394956 A CN201910394956 A CN 201910394956A CN 110100835 A CN110100835 A CN 110100835A
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- pyrazosulfuron
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
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Abstract
The invention discloses a kind of mixed herbicidal composites containing trifluoro ketone grass ether and pyrazosulfuron, belong to technical field of herbicide production.Effective component is trifluoro ketone grass ether and pyrazosulfuron.The weight fraction ratio of trifluoro ketone grass ether and pyrazosulfuron in Herbicidal combinations is 1:0.05-1:50.The present invention closes the auxiliary agent allowed on object and pesticide and is processed into a variety of dosage forms such as suspending agent, dispersibility oil-suspending agent, water dispersion granule and wettable powder.The trifluoro ketone grass ether and pyrazosulfuron compound that the present invention uses can prevent and kill off paddy field annual gramineous weed, broadleaf weeds and sedge weed, the effect of than two amount of herbicide kinds of trifluoro ketone grass ether and pyrazosulfuron are used alone, is good, delay Weed Resistance, herbicidal spectrum is wide, lasting period is long, it is ideal Herbicidal composition for rice field and to rice and second stubble crop safety.
Description
Technical field
The present invention relates to mixture of herbicides production technical fields, in particular to a kind of to contain trifluoro ketone grass ether and pyrazosulfuron
It is used to prevent and kill off the Herbicidal combinations of paddy field weed for herbicide raw material.The Herbicidal combinations can prepare paddy field postemergence weed control
Herbicide.
Background technique
Chemical weed control is one of the main method of modern agriculture weeds comprehensively control.Single herbicide kind large area makes
With causing weeds to develop drug resistance quickly.Meanwhile agricultural weed occur when grass phase is complicated, gramineae weed, broadleaf weeds,
The mixed life of a variety of weeds such as nutgrass flatsedge, single variety herbicide can show lacking in a certain respect using not can solve farmland weed
Sunken and limitation.Variety classes herbicide mixture has wide herbicidal spectrum, the practical control efficiency of promotion, delays herbicide resistance, saves
The advantages that Shi Shenggong.
Trifluoro ketone grass ether is the pyrimidine salicylic acid high-efficiency broad spectrum herbicide for paddy field researched and developed by our team, chemistry
Title: O- [2,6- bis- (4,6- dioxime base -2- base oxygroup) benzoyls] oxime (3- trifluoromethyl) acetophenone, English name
Claim: Ethanone, 1- [3- (trifluoromethyl) phenyl]-o- [2,6-bis [(4,6-dimethoxy-2-
pyrimidinyl)oxy]benzoyl]oxime；No. CAS: [1646642-77-4] is mainly used for preventing and kill off paddy field barnyard grass, thousand
The weeds such as gold, Monochoria vaginalis, water amaranth, false loosestrife, mexicana.Efficient, safety, wide spectrum, selectivity are high with it for such herbicide
It is received great attention with environmental-friendly etc..(Chinese invention patent, ZL201380019634.5, world patent: WO2015081493
(A1))。
Pyrazosulfuron (pyrazosulfuron-ethyl), and each careless jinx, NC-311, Mercury.Chemical name: 5- (4,
6- dimethoxypyridin base -2- carbamoylamino sulfonyl) -1- methylpyrazole -4- carboxylic acid (ethyl ester), it is living for sulfonylurea height
Property inner sucting conduction type selective herbicide, effective component can be spread rapidly in water, be transmitted to plant after the root absorption of weeds
Strain inhibits the biosynthesis of amino acid valine and isoleucine necessary to acetolactate synthestase, plant thin to prevent in vivo
Born of the same parents' division, inhibits rapidly the growth of weeds leaves and stems and the stretching, extension of root, then completely withered.Though weeds are still in after being administered sometimes
Existing green, but growth and development has been suppressed, and loses the competitiveness with rice.Efficacy stability, it is highly-safe, the lasting period 25~
35 days.Suitable for rice seedling bed, live streaming field, transplant field.Prevent and kill off annual and perennial broadleaf weed and sedge weed, such as rice
Leersia Sw, needle spikesedge herb, Herba Cyperi Glomerati, difformed galingale herb, Monochoria vaginalis, Chinese celery, mexicana, rhizoma alismatis, short arrowhead, angustifolia arrowhead herb, bog pondweed, firefly
Lin, duckweed, duckweed, bur beggar-ticks etc..
Currently, herbicide for paddy field is limited by crop safety, degrass spectrum is also limited, and single formulation weeding is not thorough, often
Need secondary or even medication three times, weeding higher cost.Furthermore herbicide dosage is excessive or application is unevenly also be easy to cause pair
The residual hazard of this season crop or succession crop.As country disables the pressure of highly toxic pesticide, in the feelings for guaranteeing medication effect
It under condition, reduces environmental pollution, reducing pesticide dosage becomes a kind of trend of Agrochemicals.Variety classes herbicide mixture, has
Herbicidal spectrum is wide, promotes practical herbicidal effect, reduces dosage, reduces cost, delays the drug resistance generated to weeds, be Modern Agriculture
The important means of industry integrated control.
Therefore, the present invention selects the trifluoro ketone grass ether of advantage and disadvantage complementation and the combination agent that is made into of pyrazosulfuron to use so both
The dosage for reducing medicament, significantly improves herbicidal effect, also avoids generating this season crop phytotoxicity and produce to succession crop
A possibility that raw residual hazard.Recipe determination is furtherd investigate, finds trifluoro ketone grass ether and pyrazosulfuron in certain mixture
Proportional region has synergistic effect, after further study, complete the present invention paddy field annual grassy weeds.
Summary of the invention
It is an object of the invention to overcome the problems, such as the effect that develops drug resistance to paddy field weed and actually prevent and treat in the prior art
Fruit is undesirable, provides a kind of less toxic, efficient, wide spectrum, safety herbicide for paddy field, is conducive to paddy field weed integrated control
Herbicidal combinations.
The present invention is according to the status of current paddy field herbicide after seedling, and a situation arises for weeds after paddy field seedling, mentions
For a kind of two end number mixing Herbicidal combinations by fluorine ketone grass ether and pyrazosulfuron compound, which can not only be improved to miscellaneous
The preventive effect of grass, and to when stubble and succession crop safety, while reducing drug cost.
Technical solution: to achieve the above object, the present invention provides a kind of weeding containing trifluoro ketone grass ether and pyrazosulfuron
Composition, effective component are trifluoro ketone grass ether and pyrazosulfuron, and the weight fraction ratio of trifluoro ketone grass ether and pyrazosulfuron is 1:
0.20-1:50。
Herbicidal combinations of the invention are prepared into a variety of doses used on suitable modern agriculture paddy field by known method
Type, relatively good has suspending agent, dispersibility oil-suspending agent, water dispersion granule and wettable powder.
Trifluoro ketone grass ether and pyrazosulfuron suspending agent, by following weight fraction at being grouped as:
Trifluoro ketone grass ether, pyrazosulfuron, emulsifier, wetting agent, dispersing agent, thickener, defoaming agent, antifreezing agent, water
Weight fraction ratio is 1:0.2-50:0.01-0.04:0.01-0.05:0.01-0.06:0.005-0.02:0.005- 0.01:0.5-
3.5:5:50.
The wherein emulsifier specifically: nonylphenol polyoxyethylene ether, sorbitan fatty acid ester, polyoxyethylene rouge
Fat acid esters, castor oil polyoxyethylene ether；Wetting agent specifically: lauryl sodium sulfate, calcium dodecyl benzene sulfonate, dodecyl
Benzene sulfonic acid sodium salt, dispersing agent specifically: lignosulfonates, Sodium Polyacrylate, NNO (sodium methylene bis-naphthalene sulfonate), alkylnaphthalene sulphur
Hydrochlorate, thickener specifically: sodium carboxymethylcellulose, bentonite, carragheen, xanthan gum, defoaming agent specifically: poly dimethyl silicon
Oxygen alkane, antifreezing agent specifically: ethylene glycol, propylene glycol, diethylene glycol (DEG).
Trifluoro ketone grass ether and pyrazosulfuron dispersibility oil-suspending agent, by following weight fraction at being grouped as:
The parts by weight of trifluoro ketone grass ether, pyrazosulfuron, emulsifier, wetting agent, stabilizer, dispersing agent, thickener, solvent
Than being 1:0.2-50:0.01-0.04:0.01-0.05:0.01-0.06:0.01-0.06:0.5-3.5: 5-50.
The wherein emulsifier specifically: castor oil polyoxyethylene ether, nonylphenol polyoxyethylene ether, Sorbitan alcohol ester
Fat acid esters, polyoxyethylene fatty acid ester, wetting agent specifically: lauryl sodium sulfate, calcium dodecyl benzene sulfonate, dodecyl
Benzene sulfonic acid sodium salt, by stages agent specifically: lignosulfonates, NNO (sodium methylene bis-naphthalene sulfonate, alkylnaphthalene sulfonate, thickener tool
Body are as follows: sodium carboxymethylcellulose, organobentonite, carragheen, xanthan gum, solvent specifically: water, soybean oil, methyl oleate.
Trifluoro ketone grass ether and pyrazosulfuron water dispersion granule, by following weight fraction at being grouped as:
The parts by weight of trifluoro ketone grass ether, pyrazosulfuron, emulsifier, wetting agent, dispersing agent, disintegrating agent, binder, filler
Than for 1:0.2-50:0.02-0.06:0.01-0.10:0.01-0.08:0.01-0.04:0.01-0. 10:1-30.
The wherein emulsifier specifically: castor oil polyoxyethylene ether, nonylphenol polyoxyethylene ether, Sorbitan alcohol ester
Fat acid esters, polyoxyethylene fatty acid ester, wetting agent specifically: lauryl sodium sulfate, calcium dodecyl benzene sulfonate, dodecyl
Benzene sulfonic acid sodium salt, dispersing agent specifically: NNO (sodium methylene bis-naphthalene sulfonate, alkylnaphthalene sulfonate, disintegrating agent specifically: organic swelling
Soil, kaolin, binder specifically: sodium carboxymethylcellulose pyce, carragheen, filler specifically: bentonite, kaolin, white carbon black, light
Matter calcium carbonate.
Trifluoro ketone grass ether and pyrazosulfuron wettable powder, by following weight fraction at being grouped as:
Trifluoro ketone grass ether, pyrazosulfuron, emulsifier, wetting agent, dispersing agent, filler weight fraction ratio be 1:0.2-50:
0.02-0.08:0.1-0.10:0.08-0.15:5-50.
The wherein emulsifier specifically: polyoxyethylene fatty acid ester, polyoxyethylene fatty acid diester, alkyl phenol polyoxy
Vinethene, castor oil polyoxyethylene ether, wetting agent specifically: lauryl sodium sulfate, calcium dodecyl benzene sulfonate, dodecyl
Benzene sulfonic acid sodium salt, fatty alcohol polyglycol ether sulfate, dispersing agent specifically: lignosulfonates, Sodium Polyacrylate, naphthalene sulfonic acids
Salt, alkylnaphthalene sulfonate, filler specifically: bentonite, kaolin, white carbon black, precipitated calcium carbonate.
Herbicidal combinations of the invention contain the usual auxiliaries of amount of herbicide preparation, including solvent, emulsifier, wetting agent,
One or more of stabilizer, by stages agent, thickener, defoaming agent, antifreezing agent, disintegrating agent, binder, filler, medium etc. are mixed
It closes, is known substance, be the common and various auxiliary agents in herbicide formulations, can be varied, be had no according to different situations
It is particularly limited to.
Herbicidal combinations provided by the invention generally use and are watered spray method use, can use Modern Agriculture as needed
Other applied in industry use technology.
The Herbicidal combinations can delay Weed Resistance compared to single agent under the premise of improving drug effect, and herbicidal spectrum is wide, holds
The effect phase is long, enough prevents and kill off paddy field annual gramineous weed and broadleaf weeds and sedge weed, and to rice and lower stubble
Crop safety.Herbicidal combinations of the invention can be used for preparing the herbicide of paddy field postemergence weed control, be intended especially for preparing
Prevent and kill off the herbicide of various annual grassy weeds and perennial weeds, can especially prepare prevent and kill off gramineae weed, broadleaf weeds and
The herbicide of sedge weed.
Herbicidal combinations provided by the invention, when in use should be after rice seedling to before jointing, and paddy field is annual miscellaneous
It is used before careless 5 leaves.
The method have the advantages that:
1, composition shows apparent synergistic effect, significantly improves effect than single use.
2, composition expands degrass spectrum, while can prevent and treat gramineae weed, broadleaf weeds effect.
3, composition can overcome long-term single use weeds to generate the shortcomings that being easy to produce drug resistance.Extend compound
Service life has great significance to the integrated control of herbicide resistance.
4, composition production simple process reduces material and uses, reduce the dosage of compound, reduces production cost.
5, highly-safe.Medicament of the present invention is under the premise of improving drug effect, to the safety of paddy field and succession crop
Property is also improved.
Specific embodiment
Herbicidal combinations of the invention are according to the raw medicine correlation properties of trifluoro ketone grass ether and pyrazosulfuron, and its weeder
Reason etc., can be processed into a variety of dosage forms such as suspending agent, dispersibility oil-suspending agent, water dispersion granule and wettable powder.This hair
The content of two kinds of effective component in bright Herbicidal combinations does not limit to the range in following embodiment.
In order to keep the objectives, technical solutions, and advantages of the present invention more concise, this uses following specific embodiments with bright
It is illustrated, but the present invention is by no means limited to these examples.The following is only the preferred embodiment of the present invention, is used only for retouching
The present invention is stated, should not be understood as the limitation of the scope of the present invention.It should be pointed out that all within the spirits and principles of the present invention
Any modifications, equivalent replacements, and improvements etc. done, should all be included in the protection scope of the present invention.
In the examples below, unless otherwise stated, all percentages are weight percentage.
The auxiliary agent used in the present invention can be at least one in emulsifier, dispersing agent, wetting agent, filler
Kind.
The emulsifier being used in the present invention can be existing various emulsifiers, such as selected from Sorbitan alcohol ester
Fat acid esters, polyoxyethylene fatty acid ester, polyoxyethylene fatty acid diester, alkyl phenol polyoxyethylene ether, castor oil polyoxyethylene ether,
PULLRONIC F68 block polymer ether, polyoxyethylene diphenyl ether are at least one.
The dispersing agent being used in the present invention can for selected from lignosulfonates, Sodium Polyacrylate, naphthalene sulfonate,
Alkylnaphthalene sulfonate, alkamide taurine salt, polycarboxylate, the sodium salt of alkyl naphthalene sulfonic acid condensation polymer and alkyl naphthalene sulfonic acid formaldehyde
At least one of polymer.The dispersing agent is preferably alkylnaphthalene sulfonate, polycarboxylate or alkyl naphthalene sulfonic acid oxymethylene polymerization
Object.
The wetting agent being used in the present invention can for selected from lauryl sodium sulfate, calcium dodecyl benzene sulfonate,
Neopelex, fatty alcohol polyglycol ether sulfate, fatty alcohol polyoxyethylene ether, alkyl naphthalene sulfonic acid formaldehyde condensation
At least one of object, alkylnaphthalene sulfonate, nonylphenol polyoxyethylene ether or sorbitan fatty acid ester polyoxyethylene ether.
The wetting agent is preferably neopelex, fatty alcohol polyoxyethylene ether, alkyl naphthalene sulfonic acid formaldehyde condensation products or alkyl
Naphthalene sulfonate.
The stabilizer propylene glycol that is used in the present invention, Isopropanediol；Polyethylene glycol etc..
Described thickener and adhesive sodium carboxymethylcellulose pyce, carragheen, xanthan gum for being used in the present invention etc..
The defoaming agent being used in the present invention has dimethyl silicone polymer etc..
The antifreezing agent being used in the present invention has ethylene glycol, propylene glycol, diethylene glycol (DEG) etc..
The filler being used in the present invention has bentonite, organobentonite, kaolin, white carbon black, precipitated calcium carbonate
Deng
The solvent being used in the present invention has water, soybean oil, methyl oleate etc.
Below by embodiment, the invention will be further described.
In the following Examples and Comparative Examples, trifluoro ketone grass ether and pyrazosulfuron Herbicidal combination are detected by liquid chromatograph
Trifluoro ketone grass ether and pyrazosulfuron content in object；Trifluoro ketone grass ether and pyrazosulfuron composition are detected by CIPAC method
Stability.Specific embodiment
Herbicidal combinations of the invention are according to the raw medicine correlation properties of trifluoro ketone grass ether and pyrazosulfuron, and its weeder
Reason etc., can be processed into a variety of dosage forms such as suspending agent, dispersibility oil-suspending agent, water dispersion granule and wettable powder.This hair
The content of two kinds of effective component in bright Herbicidal combinations does not limit to the range in following embodiment.
Embodiment 1:
20% trifluoro ketone grass ether-pyrazosulfuron suspending agent: trifluoro ketone grass ether 5%, pyrazosulfuron 15%, polyoxyethylene nonyl phenyl second
Alkene ether 3%, lauryl sodium sulfate 2%, calcium dodecyl benzene sulfonate 1%, lignosulfonates 1%, bentonite 3%, carboxylic first
Base sodium cellulosate 0.4%, propylene glycol 6%, organic silicon defoamer 0.2%, deionized water adds to 100%.
Above-mentioned formula is subjected to precomminution in proportion, adds in sand mill and is ground, deployed after high shear mixing
20% trifluoro ketone grass ether-pyrazosulfuron suspending agent is made.
Embodiment 2:
15% trifluoro ketone grass ether-pyrazosulfuron can be dispersed oil-suspending agent: trifluoro ketone grass ether 3%, pyrazosulfuron 12%, and 12
Alkyl benzene calcium sulfonate 4%, castor oil polyoxyethylene ether 4%, sodium lignin sulfonate 3%, soybean oil 8%, organobentonite 3%,
Methyl oleate adds to 100%.Above-mentioned material is subjected to precomminution in proportion, adds in sand mill and is ground, cut through height
Obtained 15% trifluoro ketone grass ether-pyrazosulfuron suspending agent is deployed after cutting mixing.
Embodiment 3:
60% trifluoro ketone grass ether-pyrazosulfuron water dispersion granule: trifluoro ketone grass ether 50%, pyrazosulfuron 10%, fat
Alcohol polyoxyethylene ether 5%, sorbitan fatty acid ester polyoxyethylene ether 1%, NNO (sodium methylene bis-naphthalene sulfonate) 6%, ten
Dialkyl benzene sulfonic acids sodium 2%, organobentonite 1%, sodium carboxymethylcellulose pyce 1%, white carbon black 1%, kaolin adds to 100%.
Trifluoro ketone grass ether-pyrazosulfuron water dispersion that effective component mass percentage is 50% is configured to according to conventional preparation method
Granula.
Embodiment 4:
20% trifluoro ketone grass ether-pyrazosulfuron wettable powder: trifluoro ketone grass ether 0.4%, pyrazosulfuron 19.6% is wooden
Plain sodium sulfonate 8%, pull open powder NNO 4%, white carbon black 2%, nonylphenol polyoxyethylene ether 3%, bentonite 5%, precipitated calcium carbonate
Add to 100%.Above-mentioned material is carried out in proportion enter after coarse crushing mixer be it is uniformly mixed, made after air-flow crushing
It is standby to obtain 20% trifluoro ketone grass ether-pyrazosulfuron wettable powder.
Embodiment 5:
12% trifluoro ketone grass ether-pyrazosulfuron suspending agent: trifluoro ketone grass ether 10%, pyrazosulfuron 2%, polyoxyethylene nonyl phenyl second
Alkene ether 2%, lauryl sodium sulfate 0.5%, calcium dodecyl benzene sulfonate 1%, bentonite 3%, xanthan gum 0.2%, propylene glycol
5%, organic silicon defoamer 0.2%, deionized water adds to 100%.
Above-mentioned formula is subjected to precomminution in proportion, adds in sand mill and is ground, deployed after high shear mixing
12% trifluoro ketone grass ether-pyrazosulfuron suspending agent is made.
Embodiment 6:
25% trifluoro ketone grass ether-pyrazosulfuron suspending agent: trifluoro ketone grass ether 0.5%, pyrazosulfuron 24.5%, nonyl phenol are poly-
Ethylene oxide ether 4%, lauryl sodium sulfate 1%, calcium dodecyl benzene sulfonate 1%, bentonite 3%, xanthan gum 0.3%, the third two
Alcohol 8%, organic silicon defoamer 0.3%, deionized water adds to 100%.
Above-mentioned formula is subjected to precomminution in proportion, adds in sand mill and is ground, deployed after high shear mixing
20% trifluoro ketone grass ether-pyrazosulfuron suspending agent is made.
Embodiment 7:
Oil-suspending agent: trifluoro ketone grass ether 20%, pyrazosulfuron 4%, fat can be dispersed in 24% trifluoro ketone grass ether-pyrazosulfuron
Alcohol polyoxyethylene ether 5%, castor oil polyoxyethylene ether 3%, NNO (sodium methylene bis-naphthalene sulfonate) 3%, vegetable oil 10%, kaolinite
Soil 1%, xanthan gum 0.2%, methyl oleate adds to 100%.Above-mentioned material is subjected to precomminution in proportion, adds sand mill
In ground, after high shear mixing deploy be made 24% trifluoro ketone grass ether-pyrazosulfuron suspending agent.
Embodiment 8:
20% trifluoro ketone grass ether-pyrazosulfuron can be dispersed oil-suspending agent: trifluoro ketone grass ether 0.4%, pyrazosulfuron 19.6%,
Fatty alcohol polyoxyethylene ether 2%, castor oil polyoxyethylene ether 4%, NNO (sodium methylene bis-naphthalene sulfonate) 5%, vegetable oil 8% are high
Ridge soil 2%, xanthan gum 0.4%, methyl oleate adds to 100%.Above-mentioned material is subjected to precomminution in proportion, adds sand milling
It is ground in machine, is deployed after high shear mixing and 20% trifluoro ketone grass ether-pyrazosulfuron suspending agent is made.
Embodiment 9:
60% trifluoro ketone grass ether-pyrazosulfuron water dispersion granule: trifluoro ketone grass ether 1.2%, pyrazosulfuron 58.8%, rouge
Fat alcohol polyoxyethylene ether 4%, sorbitan fatty acid ester polyoxyethylene ether 2%, NNO (sodium methylene bis-naphthalene sulfonate) 5%,
White carbon black 2%, kaolin adds to 100%.Being configured to effective component mass percentage according to conventional preparation method is 60%
Trifluoro ketone grass ether-pyrazosulfuron water dispersion granule.
Embodiment 10:
12% trifluoro ketone grass ether-pyrazosulfuron wettable powder: trifluoro ketone grass ether 10%, pyrazosulfuron 2%, sulfomethylated lignin
Sour sodium 6%, pull open powder NNO 6%, white carbon black 1%, nonylphenol polyoxyethylene ether 5%, bentonite 3%, precipitated calcium carbonate supplement
To 100%.Above-mentioned material is carried out in proportion enter after coarse crushing mixer be it is uniformly mixed, be prepared into after air-flow crushing
15% trifluoro ketone grass ether-pyrazosulfuron wettable powder.
11 trifluoro ketone grass ether of experimental example and pyrazosulfuron mixture synergy measurement
1, test material: barnyard grass (Echinochloa crusgalli), semen euphorbiae (Leptochloa chinensis),
Monochoria vaginalis (Monochora vaginalis), water amaranth (Ammannia baccifera).
2, medicament and preparation are tested:
The trifluoro ketone grass ether and pyrazosulfuron raw medicine that certain mass is weighed with assay balance, with solvent (acetone, DMF or
File mark etc. in DMSO) the small preparation of missible oil for being configured to 1.0-5.0% is dissolved, then with the steaming containing 0.1-0.25%TW-80
Distilled water is diluted to a certain concentration gradient.
Representative susceptible weeds seed is selected according to single dose herbicidal spectrum, culture to 3 leaves is spare, and selection is numbered
Weeds cauline leaf process after, be placed on incubated at room temperature 20 days in illumination box, calculate control efficiency (fresh weight).
Investigation method: test process 20 is born, and visual assessment medicament is to plant strain growth inhibitions, deformity, yellow, rotten, bad
It waits indefinitely influence degree, and claims aerial part fresh weight, calculate fresh weight resistance rate (%)
Fresh weight resistance rate P (%)=[(control fresh weight-processing fresh weight)/control fresh weight] * 100
Synergy evaluation method: evaluating amount of herbicide mode of application (NY/T1155.7-2006) with Gowing method,
Formula is as follows:
In formula:
X is trifluoro ketone grass ether dosage when being P to Weed-control effect rate；
Y is pyrazosulfuron dosage when being Q to Weed-control effect rate；
E0When for trifluoro ketone grass ether dosage being P to when Weed-control effect rate+pyrazosulfuron dosage is Q to Weed-control effect rate；E is
The practical preventive effect of Mixed Pharmacy
Evaluation criterion: E-E0Value > 10% is summation action；
E-E0Value < -10% is antagonism；
E-E0Value >=10% is synergistic effect.
Test result shows and (is shown in Table 1, table 2, table 3, table 4), and trifluoro ketone grass ether and pyrazosulfuron mixture are to barnyard grass, a thousand pieces of gold
Son, Monochoria vaginalis, water amaranth E-E0Value >=10% illustrates that trifluoro ketone grass ether and pyrazosulfuron group are combined into synergistic effect.
1 trifluoro ketone grass ether of table and pyrazosulfuron Herbicidal combinations measure the synergy of barnyard grass
2 trifluoro ketone grass ether of table and pyrazosulfuron Herbicidal combinations measure the synergy of semen euphorbiae
3 trifluoro ketone grass ether of table and pyrazosulfuron Herbicidal combinations measure the synergy of Monochoria vaginalis
4 trifluoro ketone grass ether of table and pyrazosulfuron Herbicidal combinations measure the synergy of water amaranth
Experimental example 12: the field control effectiveness test of combinations of herbicides of the invention.
Reagent agent:
4 kinds of re-compounded binary herbicides in Examples 1 to 4.
Comparison medicament:
5% trifluoro ketone grass ether suspending agent (self-control),
10% pyrazosulfuron wettable powder (commercially available).
For studying object: rice
Rice seedlings grow fine, robust plant, without other pest and disease damages.
Control object: the standing grain such as barnyard grass, semen euphorbiae, Monochoria vaginalis, water amaranth, difformed galingale herb, needle spikesedge herb, short arrowhead, mexicana
Undergraduate course weeds, broadleaf weeds and sedge weed.
Test method:
According to the area of experimental plot, good various medicaments of precise, and after being watered dilution, using knapsack sprayer,
Carry out even spraying, the dedicated Fan spray head of sprinkler selection herbicide.When spraying, it should be noted that it is small that medical fluid is uniformly sprayed application to test
Qu Zhong accomplishes no drain spray, the phenomenon that spraying more.
20d, 40d observe weeds death condition, and the activity of weeding of more various medicaments after medicine respectively after test.This
Outside, whether the condition of production that also observe crop in 1~15d after medicine, have phytotoxicity to investigate medicament to crop.
The embodiment of the present invention preparation Herbicidal Testing Trials effect see the table below (40d after medicine)
Security survey result of the medicament to crop
The above processing is safe to rice.
Claims (10)
1. a kind of Herbicidal combinations containing trifluoro ketone grass ether and pyrazosulfuron, it is characterised in that its effective component is trifluoro ketone grass
Ether and pyrazosulfuron, wherein the weight fraction ratio of trifluoro ketone grass ether and pyrazosulfuron is 1:0.20-1:50.
2. a kind of Herbicidal combinations containing trifluoro ketone grass ether and pyrazosulfuron according to claim 1, it is characterised in that
It is suspending agent, dispersibility oil-suspending agent, water dispersion granule or wettable powder.
3. a kind of Herbicidal combinations containing trifluoro ketone grass ether and pyrazosulfuron according to claim 1, it is characterised in that
It is the suspending agent of trifluoro ketone grass ether and pyrazosulfuron, by following weight fraction at being grouped as:
Trifluoro ketone grass ether, pyrazosulfuron, emulsifier, wetting agent, dispersing agent, the weight of thickener, defoaming agent, antifreezing agent, water
Portion rate is 1:0.2-50:0.01-0.04:0.01-0.05:0.01-0.06:0.005-0.02:0.005- 0.01:0.5-3.5:
5:50。
4. a kind of Herbicidal combinations containing trifluoro ketone grass ether and pyrazosulfuron according to claim 3, it is characterised in that
The wherein emulsifier specifically: nonylphenol polyoxyethylene ether, sorbitan fatty acid ester, polyoxyethylene fatty acid ester,
Castor oil polyoxyethylene ether；Wetting agent specifically: lauryl sodium sulfate, calcium dodecyl benzene sulfonate, dodecyl benzene sulfonic acid
Sodium, dispersing agent specifically: lignosulfonates, Sodium Polyacrylate, NNO (sodium methylene bis-naphthalene sulfonate), alkylnaphthalene sulfonate increase
Thick dose specifically: sodium carboxymethylcellulose, bentonite, carragheen, xanthan gum, defoaming agent specifically: dimethyl silicone polymer is prevented
Freeze agent specifically: ethylene glycol, propylene glycol, diethylene glycol (DEG).
5. a kind of Herbicidal combinations containing trifluoro ketone grass ether and pyrazosulfuron according to claim 1, it is characterised in that
It is the dispersibility oil-suspending agent of trifluoro ketone grass ether and pyrazosulfuron, by following weight fraction at being grouped as:
Trifluoro ketone grass ether, pyrazosulfuron, emulsifier, wetting agent, stabilizer, dispersing agent, thickener, solvent weight fraction ratio be
1:0.2-50:0.01-0.04:0.01-0.05:0.01-0.06:0.01-0.06:0.5-3.5: 5-50.
6. a kind of Herbicidal combinations containing trifluoro ketone grass ether and pyrazosulfuron according to claim 5, it is characterised in that
The wherein emulsifier specifically: castor oil polyoxyethylene ether, nonylphenol polyoxyethylene ether, sorbitan fatty acid ester,
Polyoxyethylene fatty acid ester, wetting agent specifically: lauryl sodium sulfate, calcium dodecyl benzene sulfonate, dodecyl benzene sulfonic acid
Sodium, by stages agent specifically: lignosulfonates, NNO (sodium methylene bis-naphthalene sulfonate, alkylnaphthalene sulfonate, thickener specifically:
Sodium carboxymethylcellulose, organobentonite, carragheen, xanthan gum, solvent specifically: water, soybean oil, methyl oleate.
7. a kind of Herbicidal combinations containing trifluoro ketone grass ether and pyrazosulfuron according to claim 1, it is characterised in that
It is the water dispersion granule of trifluoro ketone grass ether and pyrazosulfuron, by following weight fraction at being grouped as: trifluoro ketone grass ether, pyrrole
Sulfometuron Methyl, emulsifier, wetting agent, dispersing agent, disintegrating agent, binder, filler weight fraction ratio be 1:0.2-50:0.02-
0.06:0.01-0.10:0.01-0.08:0.01-0.04:0.01-0.10:1-30.
8. a kind of Herbicidal combinations containing trifluoro ketone grass ether and pyrazosulfuron according to claim 7, it is characterised in that
The wherein emulsifier specifically: castor oil polyoxyethylene ether, nonylphenol polyoxyethylene ether, sorbitan fatty acid ester,
Polyoxyethylene fatty acid ester, wetting agent specifically: lauryl sodium sulfate, calcium dodecyl benzene sulfonate, dodecyl benzene sulfonic acid
Sodium, dispersing agent specifically: NNO (sodium methylene bis-naphthalene sulfonate, alkylnaphthalene sulfonate, disintegrating agent specifically: organobentonite, height
Ridge soil, binder specifically: sodium carboxymethylcellulose pyce, carragheen, filler specifically: bentonite, kaolin, white carbon black, lightweight carbon
Sour calcium.
9. a kind of Herbicidal combinations containing trifluoro ketone grass ether and pyrazosulfuron according to claim 1, it is characterised in that
It is the wettable powder of trifluoro ketone grass ether and pyrazosulfuron, by following weight fraction at being grouped as:
Trifluoro ketone grass ether, pyrazosulfuron, emulsifier, wetting agent, dispersing agent, filler weight fraction ratio be 1:0.2-50:0.02-
0.08:0.1-0.10:0.08-0.15:5-50.
10. a kind of Herbicidal combinations containing trifluoro ketone grass ether and pyrazosulfuron according to claim 9, it is characterised in that
The wherein emulsifier specifically: polyoxyethylene fatty acid ester, polyoxyethylene fatty acid diester, alkyl phenol polyoxyethylene ether,
Castor oil polyoxyethylene ether, wetting agent specifically: lauryl sodium sulfate, calcium dodecyl benzene sulfonate, dodecyl benzene sulfonic acid
Sodium, fatty alcohol polyglycol ether sulfate, dispersing agent specifically: lignosulfonates, Sodium Polyacrylate, naphthalene sulfonate, alkyl
Naphthalene sulfonate, filler specifically: bentonite, kaolin, white carbon black, precipitated calcium carbonate.
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| CN201910394956.7A CN110100835A (en) | 2019-05-13 | 2019-05-13 | A kind of mixed herbicidal composite containing trifluoro ketone grass ether and pyrazosulfuron |
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