CN102326561A - Weeding composition containing carfentrazone-ethyl and mefenacet - Google Patents
Weeding composition containing carfentrazone-ethyl and mefenacet Download PDFInfo
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- CN102326561A CN102326561A CN 201110140928 CN201110140928A CN102326561A CN 102326561 A CN102326561 A CN 102326561A CN 201110140928 CN201110140928 CN 201110140928 CN 201110140928 A CN201110140928 A CN 201110140928A CN 102326561 A CN102326561 A CN 102326561A
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Abstract
The invention relates to a weeding composition containing carfentrazone-ethyl and mefenacet. The composition is mainly characterized by comprising 1-40 percent of carfentrazone-ethyl and 1-80 by comprising of mefenacet serving as active ingredients, an aid and other excipients and being prepared into wettable powder, water-dispersible granules, a suspending agent, a micro-emulsion, an aqueous emulsion and the like. The weeding composition is used for preventing paddy field cockspur grass and other gramineae weeds and for controlling most broadleaf weeds and certain sedge weeds.
Description
Technical field
The invention belongs to technical field of pesticide, be specifically related to the Herbicidal combinations of a kind of two careless ether and mefenacet, be used to prevent and treat the common weeds of paddy field.
Background technology
The direction of pesticide developing was to embody efficient, low toxicity, low-residual and pollution-free in recent years.Be embodied in pursuit " three height ", promptly (1) is safe, and this not only requires toxicity low, and is residual low, and nuisanceless; (2) biologically active is high; (3) selectivity is high.Therefore continue to improve the performance of present Pesticidal products, reach efficient, low toxicity, free of contamination requirement.So, select the agricultural chemicals of composite mixture just to become current first-selection and a kind of valid approach, be that the agricultural chemicals of performance complement obtains best synergistic effect through the proportioning of adjusting different agricultural chemicals.
Two careless ethers (bispyribac-sodium), molecular formula: C
19H
17N
4NaO
8, chemical name: 2, two (4, the 6-SDM base-2-oxygen base) Sodium Benzoates of 6-.Two careless ethers belong to benzoic acid herbicide; These article absorb to suppress the synthetic and hindered aminoacid biosynthesis side chain of vinegar milk acid through the root leaf. be selective herbicide, use that efficient, wide spectrum, consumption are extremely low rice direct-seeding Tanaka; Can be absorbed by the cauline leaf of weeds very soon after the dispenser of these article; And conduct to whole plant, suppress the growth of plant meristematic tissue, thereby kill weeds.
Mefenacet (mefenacet), molecular formula: C
16H
14N
2O
2S, chemical name: 2-[4-morpholinodithio-2-base oxygen-N-exalgine, this medicine is a kind of selectivity inner sucting conduction type weed killer herbicide.Main through bud scale and root absorption, conduct to young shoot and the tender leaf of weeds through xylem and phloem, stop weed growth point cell division to be extended, finally cause plant death.Strong to the transplanting rice selectivity, because solvability is low in water, so under the water conservation condition; The dispenser activity of weeding is the highest, and soil is very strong to these article absorption affinity, and the dose major part is adsorbed on upper soll layer after the dispenser; And at upper soll layer 1cm with interior formation processing layer; Can avoid contacting of paddy growth point and this medicament like this, make it produce higher safety, and the weeds such as barnyard grass grass that growing point is in upper soll layer are had stronger prevention fertility and kill ability; And the perennial weed of the seminal propagation on top layer also had inhibitory action, low to deep layer weeds effect.
The chemical composition of each weed killer herbicide, structure and physicochemical property all are distinguishing.Therefore, they kill careless ability and scope is also different.It is narrower that some weed killer herbicide kills the grass spectrum, but have one's own knack, and can eradicate the weeds that are difficult to eliminate with other weed killer herbicide.
In recent years; People are frequent to be used and has concurrently to the safety of useful crop with to the so-called selective herbicide of the herbicidal effect of undesired plants; Even but have the weed killer herbicide of high selectivity; Because of various conditions such as the kind of meteorological condition, soil condition, crop, chemicals treatment periods, also produce poisoning sometimes in use.People are studying the use of the various poisoning palliatives of the such state of affairs of not expecting of reply.At present, China also comparatively payes attention to using with aspect the research of weed killer herbicide, is extensively thought one of important measures that weed killer herbicide rationally uses, and has worked out a series of Herbicidal compositions, has obtained bigger progress.
My company also is devoted to the research and development of Herbicidal compositions.At present, do not appear in the newspapers with the relevant composite product of mefenacet about two careless ethers.
Summary of the invention
The Herbicidal combinations that contains two careless ethers that the purpose of this invention is to provide a kind of paddy field weed control.
Technical scheme of the present invention is:
A kind of Herbicidal combinations that contains two careless ethers and mefenacet is characterized in that: Herbicidal combinations contains two careless ethers 1～40%, mefenacet 1～80%, auxiliary agent surplus.
The described Herbicidal combinations that contains two careless ethers and mefenacet is characterized in that: Herbicidal combinations contains two careless ethers 1～30%, mefenacet 5～60%, auxiliary agent surplus.
The described Herbicidal combinations that contains two careless ethers and mefenacet is characterized in that: Herbicidal combinations contains two careless ethers 1～20%, mefenacet 10～40%, auxiliary agent surplus.
The described Herbicidal combinations that contains two careless ethers and mefenacet, it is characterized in that: the formulation of Herbicidal combinations is selected from: wetting powder, water dispersible granules, suspending agent, suspension emulsion, microemulsion, aqueous emulsion.
Described auxiliary agent and excipients comprise: dispersant, wetting agent, disintegrant, emulsifier, solvent, antifreeze, antifoaming agent, thickener, filler, deionized water.
The described Herbicidal combinations that contains two careless ethers and mefenacet is characterized in that: comprise following constituent content when processing wetting powder: two careless ether 1～40%, mefenacet 1～80%, dispersant 5～10%, wetting agent 2～10%, filler 8～91%.
Two careless ethers, mefenacet, dispersant, wetting agent, filler are mixed, in mixed cylinder, mix, after airslide disintegrating mill is pulverized, mix again, promptly can be made into two careless ether mefenacet wetting powder products.
The described Herbicidal combinations that contains two careless ethers and mefenacet weed killer herbicide is characterized in that: comprise following constituent content when composition is processed water dispersible granules: two careless ether 1～40%, mefenacet 1～80%, dispersant 3～12%, wetting agent 1～8%, disintegrant 1～10%, filler 10～93%.
Two careless ethers, mefenacet, dispersant, wetting agent, disintegrant, filler etc. are obtained the particle diameter that needs through comminution by gas stream together, obtain the materials of granulating.It is interior through after granulation and the drying to expect that article are quantitatively sent the fluidized bed granulation dryer to, makes two careless ether mefenacet water dispersible granules products.
The described Herbicidal combinations that contains two careless ethers and mefenacet is characterized in that: comprise following constituent content when composition is processed suspending agent: two careless ether 1～20%, mefenacet 1～40%, dispersant 2～10%, wetting agent 2～10%, antifoaming agent 0.1～1%, thickener 0.1～2%, antifreeze 0.1～8%, emulsifier 0.5%～5%, deionized water add to 100%.
Dispersant, wetting agent, antifoaming agent, thickener, antifreeze, emulsifier in the above-mentioned formulation material are mixed through high speed shear; Add two careless ethers, mefenacet ball milling 2～3 hours in ball mill; Make diameter of particle all below 5 μ m, make two careless ether mefenacet suspending agent products.
The described Herbicidal combinations that contains two careless ethers and mefenacet; It is characterized in that: comprise following constituent content when composition is processed suspension emulsion: two careless ether 1～20%, mefenacet 1～40%, emulsifier 2～12%, dispersant 2～10%, antifoaming agent 0.1～2%, thickener 0.1～2%, antifreeze 0.1～8%, stabilizing agent 0.05～3%, deionized water add to 100%.
Dispersant, antifoaming agent, thickener, antifreeze, stabilizing agent in the above-mentioned formulation material are mixed through high speed shear; Add the former medicine of active components A; Ball milling is 2～3 hours in ball mill, makes diameter of particle all below 5 μ m, makes two careless ether suspending agents; Then with the former medicine of mefenacet, emulsifier and various auxiliary agent with the direct emulsification of high speed agitator in suspending agent, make suspension emulsion product of the present invention.
The described Herbicidal combinations that contains two careless ethers and mefenacet is characterized in that: comprise when processing microemulsion: two careless ether 1～20%, mefenacet 1～40%, solvent 3～30%, emulsifier 3～15%, antifreeze 1～4%, antifoaming agent 0.01～1%, thickener 0.2～2%, deionized water add to 100%.
Former medicine is dissolved in the agitated reactor that solvent and cosolvent are housed; Give intense mixing and homogenize after joining anion emulsifier, nonionic emulsifier and stabilizing agent, antifreeze, water in the agitated reactor that above-mentioned solution is housed, obtain the as clear as crystal two careless ether mefenacet microemulsion of outward appearance at last.
The described Herbicidal combinations that contains two careless ethers and mefenacet comprises when it is characterized in that processing aqueous emulsion: two careless ether 1～20%, mefenacet 1～40%, solvent 3～30%, emulsifier 1～8%, antifreeze 1～4%, antifoaming agent 0.01～1%, thickener 0.2～2%, deionized water add to 100%.
Two careless ether, mefenacet, solvent, emulsifier in the prescription are added together, make and be dissolved into even oil phase; Water, antifreeze, antifoaming agent, thickener are mixed, become the homogeneous water; Under high-speed stirred, water is added oil phase or oil phase is added water, make two careless ether mefenacet aqueous emulsion products behind the good dispersion.
Described dispersant is selected from alkylnaphthalene sulfonate; Two (alkyl) naphthalenesulfonate formaldehyde condensation compound; Naphthalene sulfonic acid-formaldehyde condensation product; Aryl phenol polyoxyethylene succinate sulfonate; Octylphenol polyethylene oxyethylene group ether sulfate; Polycarboxylate; Lignosulfonates; The alkylaryl APEO; Aliphatic alcohol polyethenoxy base ether; The phonetic formaldehyde condensation products sulphate of alkylphenol-polyethenoxy; Alkyl benzene sulfonate calcium salt; The naphthalene sulfonic acid-formaldehyde condensation product sodium salt; Alkylphenol-polyethenoxy is phonetic; Aliphatic amine polyoxyethylene is phonetic; Polyoxyethylene carboxylate; During the ester polyoxyethylene is phonetic one or more.
Described wetting agent is selected from: lauryl sodium sulfate, neopelex, Nekal BX, wetting and penetrating agent F, spaonin powder, tea are withered, in the silkworm excrement, soapberry powder one or more.
Described disintegrant is selected from: one or more in sodium bicarbonate, sodium carbonate, bentonite, urea, ammonium sulfate, glucose, the aluminium chloride.
Described solvent is selected from: N, dinethylformamide, cyclohexanone, methyl alcohol, ethanol, 3-methyl cyclohexanol ketenes, N-octylpyrrolidone, N-pyrrolidones, propyl alcohol, butanols, ethylene glycol, diethylene glycol, EGME, butyl ether, ethyl acetate, vegetable oil, acetonitrile.
Described emulsifier is selected from: farming breast 500
#(alkyl benzene calcium sulfonate), OP series phosphate (NPE phosphate), 600
#Phosphate (phenyl phenol polyoxy ethyl ether phosphate), styrene polyoxyethylene ether ammonium sulfate salt, alkyl biphenyl ether disulfonic acid magnesium salts, triethanolamine salt, farming breast 400
#(benzyl dimethyl phenol polyoxy ethyl ether), farming breast 600
#(phenyl phenol polyoxy ethyl ether), Nongru-700
#(alkylphenol-formaldehyde resin polyoxy ethyl ether), peaceful breast 36
#(phenethyl fluosite polyoxy ethyl ether), farming breast 1600
#(phenethyl phenol polyoxy ethyl polypropylene-base ether), ethylene oxide-propylene oxide block copolymer, OP series (NPE), By series (castor oil polyoxyethylene ether), farming breast 33
#(alkylaryl polyoxyethylene polyoxypropylene ether), farming breast 34
#In (alkylaryl polyoxyethylene poly-oxygen propylene aether), sapn series (sorbitan monostearate), tween series (sorbitan fatty acid ester APEO), the AEO series (the pure APEO of fat) one or more.
Described antifreeze is selected from: one or more in glycerine, ethylene glycol, propane diols, glycerine, diethylene glycol (DEG), triethylene glycol, the polyethylene glycol.
Described antifoaming agent is selected from: silicone, C
8～10Aliphatic alcohols, C
10～20In saturated fat acids (like capric acid) and acid amides, silicone oil, the silicone compound one or more.
Described thickener is selected from: xanthans, CMC, hydroxyethylcellulose, methylcellulose, Magnesiumaluminumsilicate, polyvinyl alcohol, gelatin, melon glue, gum Arabic, sodium phosphate trimer, phenolic resins, sodium alginate, white dextrin,, in the PAA, polyvinylpyrrolidone, PVPP, polyethylene glycol one or more.
Described filler is selected from: one or more in kaolin, diatomite, bentonite, attapulgite, white carbon, starch, the precipitated calcium carbonate.
Herbicidal combinations of the present invention compared with prior art produces following beneficial effect:
So herbicide mixture is one of important measures in the weeds comprehensive regulation; Can enlarge herbicidal spectrum, improve herbicidal effect, prolong the optimum period for applying fertilizer, reduce poisoning, reduce residual activity, delay drug-fast generation of weed killer herbicide and development through using with of weed killer herbicide, remarkably productive to the weeds that the common barnyard grass grass of paddy field, cotton, soybean, rape field, lady's-grass, green foxtail, eleusine indica, wild oat, difformed galingale herb, cyperus iria, moleplant seed, annual nutgrass flatsedge, fescue Japanese grass, flat stalk grass, Monochoria vaginalis, Monochoria korsakowii, wild arrowhead, rhizoma alismatis, pondweed, pipewort, needle spikesedge herb, mexicana, Procumbent Falsepimpernel, triquetrousc murdannia herb etc. are common.
Embodiment
Below in conjunction with embodiment the present invention is further explained.
Practice example one:
Two careless ethers and mefenacet are mixed to the active determination test report of rice weed
Test objective: under the greenhouse pot culture condition, measured two careless ethers and mefenacet and different blended combo thereof and closed herbicidal effect, and estimated its synergy, for the formulation development and the agriculture chemical registration field control effectiveness test of Mixed Pharmacy provides scientific basis to barnyard grass grass.
Supply the examination target: barnyard grass (Echinochloa crusgalli L.).
Test medicine: two careless ethers (bispyribac-sodium) 95% former medicine, mefenacet (mefenacet) 95% former medicine provides by Shaanxi Welch Crop Protection Co., Ltd..
The medicament configuration:
Two careless ethereal solutions: accurately take by weighing 95% pair of former medicine of careless ether of 0.0059g; With the 0.2mLDMF dissolving, add the clear water 400mL that contains the 0.1%TWEEN80 emulsifier, stir; Be configured to two careless ether 22g a.i./ha solution, again with clear water be diluted to 4,10,15a.i./ha concentration is subsequent use.
Mefenacet solution: accurately take by weighing the former medicine of 0.0803g95% mefenacet; Dissolve with 0.2mLDMF; Add the clear water 400mL that contains the 0.1%TWEEN80 emulsifier; Stir, be configured to mefenacet 300g a.i./ha solution, again with clear water be diluted to 200,100,50a.i./ha concentration is subsequent use.
Blank solution: 0.2mLDMF adds the water of 80mL 0.1%TWEEN80 emulsifier.
Test method: adopt potted plant cauline leaf facture (NY/T 1155.4-2006): the amount of setting soil in the polypots of high 6cm, diameter 9cm; To supply 15～20 sowings of examination target weed seed in polypots; Be placed on cultivation in the greenhouse after covering the thick fine earth of 0.5～1cm, treat that weeds grew to for 1～3 leaf phase and carry out cauline leaf spraying processing, every alms bowl spraying liquid 1mL; Every processing repetition 4 times, and establish the contrast that is treated to that does not contain medicament.Handle the back examination and just place in the greenhouse in and cultivate, the growing state of routine observation target weeds, be injured symptom and growth inhibition situation of range estimation target behind the 15d, and title acrial part fresh weight or strain fresh weight are with the toxicity action of form fresh weight inhibiting rate evaluation medicament to the target weeds.
Investigation method:
Range estimation target be injured symptom and growth inhibition situation are handled behind the 15d in test, and claim to calculate fresh weight inhibiting rate (%) by the acrial part fresh weight.
The synergy evaluation method:
Estimate weed killer herbicide synergy mode (NY/T 1155.7-2006) according to the Gowing method, its formula is following:
E
0＝X+Y-XY/100
In the formula, X is that two careless ethers are with the fresh weight inhibiting rate of certain dosage list time spent to the target weeds; Y is that mefenacet is with the fresh weight inhibiting rate of certain dosage list time spent to the target weeds; E
0During for two careless ethers and two kinds of pharmacy mix of mefenacet to the theoretical value of target weeds fresh weight inhibiting rate; When E is two careless ethers and two kinds of pharmacy mix of mefenacet to the measured value of target weeds fresh weight inhibiting rate.
Evaluation criterion: work as E-E
0Be expressed as synergistic effect at＞10% o'clock, as-10%≤E-E
0Be expressed as summation action, and worked as E-E in≤10% o'clock
0Be expressed as antagonism at＜-10% o'clock.
Table 1 pair careless ether and mefenacet and the toxicity test result of combination that be mixed thereof to barnyard grass
Table 1 pair careless ether and mefenacet and the toxicity test result of combination that be mixed thereof to barnyard grass
Evaluating drug effect: two careless ethers and mefenacet and the composition that is mixed thereof are measured the result to the herbicidal effect of barnyard grass and are seen table 1.It is thus clear that; Two careless ethers and mefenacet show synergistic effect to the barnyard grass grass, its E-E with 4+50,4+100,4+200,4+300,10+50,10+100,10+200,10+300,15+50,15+100,15+200,15+300,22+50, the 22+100 composition that is mixed
0Value shows addition with 22+200, the 22+300 composition that is mixed to the barnyard grass grass respectively greater than 10%, and is wherein best to the effect of barnyard grass with the composition that is mixed of 15+200, its E-E
0Value is 19.52.
Application implementation example two: the relevant composite product embodiments of two careless ethers (following content is folding hundred percentage compositions) with mefenacet.
1 25% pair of careless ether mefenacet wetting powder of embodiment
Two careless ether 5%, mefenacet 20%, lignosulfonates 8%, lauryl sodium sulfate 7%, white carbon 15%, bentonite add to 100%, and mixture carries out comminution by gas stream, makes 25% pair of careless ether mefenacet wetting powder.
2 50% pairs of careless ether mefenacet wetting powders of embodiment
Two careless ether 10%, mefenacet 40%, alkylphenol-polyethenoxy are phonetic 10%, spaonin powder 4%, kaolin add to 100%, and mixture carries out comminution by gas stream, makes 50% pair of careless ether mefenacet wetting powder.
3 66% pairs of careless ether mefenacet wetting powders of embodiment
Two careless ether 6%, mefenacet 60%, polyoxyethylene carboxylate 5%, soapberry powder 5%, diatomite add to 100%, and mixture carries out comminution by gas stream, makes 66% pair of careless ether mefenacet wetting powder.
4 81% pairs of careless ether mefenacet wetting powders of embodiment
Two careless ether 1%, mefenacet 80%, polycarboxylate 6%, wetting and penetrating agent F 3%, white carbon add to 100%, and mixture carries out comminution by gas stream, makes 81% pair of careless ether mefenacet wetting powder.
5 48% pairs of careless ether mefenacet water dispersible granules of embodiment
Two careless ether 3%, mefenacet 45%, naphthalene sulfonic acid-formaldehyde condensation product sodium salt 5%, lignosulfonates 2%, silkworm excrement 4%, aluminium chloride 3%, attapulgite add to 100%, mixed 48% pair of careless ether mefenacet water dispersible granules.
6 55% pairs of careless ether mefenacet water dispersible granules of embodiment
Two careless ether 5%, mefenacet 50%, alkylnaphthalene sulfonate 7%, neopelex 6%, ammonium sulfate 2.8%, kaolin add to 100%, mixed 55% pair of careless ether mefenacet water dispersible granules.
7 60% pairs of careless ether mefenacet water dispersible granules of embodiment
Two careless ether 20%, mefenacet 40%, lignosulfonates 8%, wetting and penetrating agent F5%, bentonite add to 100%, mixed 60% pair of careless ether mefenacet water dispersible granules.875% pair of careless ether mefenacet water dispersible granules of embodiment
Two careless ether 15%, mefenacet 60%, polycarboxylate 7%, Nekal BX 6%, sodium bicarbonate 2.6%, white carbon add to 100%, mixed 75% pair of careless ether mefenacet water dispersible granules.
9 11% pairs of careless ether mefenacet suspending agents of embodiment
Two careless ether 1%, mefenacet 10%, alkyl benzene sulfonate calcium salt 6%, spaonin powder 4%, silicone oil 0.3%, triethylene glycol 1.8%, xanthans 1.1%, deionized water adds to 100%, mixed 11% pair of careless ether mefenacet suspending agent.
10 18% pairs of careless ether mefenacet suspending agents of embodiment
Two careless ether 15%, mefenacet 3%, naphthalene sulfonic acid-formaldehyde condensation product 7%, wetting and penetrating agent F 2%, C
10～20Saturated fat acids 0.2%, Magnesiumaluminumsilicate 0.5%, polyethylene glycol 1.3%, deionized water add to 100%, mixed 18% pair of careless ether mefenacet suspending agent.
11 28% pairs of careless ether mefenacet suspending agents of embodiment
Two careless ether 2%, mefenacet 26%, lignosulfonates 5%, soapberry powder 4%, silicone compound 0.5%, sodium alginate 0.8%, glycerine 1.5%, deionized water add to 100%, mixed 28% pair of careless ether mefenacet suspending agent.
12 45% pairs of careless ether mefenacet suspending agents of embodiment
Two careless ether 5%, mefenacet 40%, neopelex 8%, tea are withered 2%, silicone 0.3%, hydroxyethylcellulose 0.6%, ethylene glycol 1.7%, deionized water add to 100%, mixed 45% pair of careless ether mefenacet suspending agent.
13 12% pairs of careless ether mefenacet suspension emulsions of embodiment
Two careless ethers 2%, mefenacet 10%, the ester polyoxyethylene is phonetic 6%, tween series 8%, C
8～10Aliphatic alcohols 0.4%, PAA 0.5%, diethylene glycol (DEG) 1%, water adds to 100%, and the aforementioned formula material is mixed, and promptly makes 12% pair of careless ether mefenacet suspension emulsion.
14 36% pairs of careless ether mefenacet suspension emulsions of embodiment
Two careless ethers 4%, mefenacet 32%, lignosulfonates 5%, AEO series 7%, silicone compound 0.2%, Magnesiumaluminumsilicate 0.8%, propane diols 2%, water adds to 100%, and the aforementioned formula material is mixed, and promptly makes 36% pair of careless ether mefenacet suspension emulsion.
15 40% pairs of careless ether mefenacet suspension emulsions of embodiment
Two careless ether 10%, mefenacet 30%, neopelex 6%, wetting and penetrating agent F 4%, Nongru-700 #8%, methylcellulose 0.5%, ethylene glycol 2.5%, water add to 100%, mixed 40% pair of careless ether mefenacet suspension emulsion.
16 10% pairs of careless ether mefenacet aqueous emulsions of embodiment
Two careless ether 5%, mefenacet 5%, vegetable oil 10%, N-pyrrolidones 5%, 600# phosphate 9%, propane diols 2%, CMC 0.7%, silicone oil 0.1%, water is mended to 100%, makes 10% pair of careless ether mefenacet aqueous emulsion.
17 30% pairs of careless ether mefenacet aqueous emulsions of embodiment
Two careless ether 3%, mefenacet 27%,, N-octylpyrrolidone 6%, toluene 7%, styrene polyoxyethylene ether ammonium sulfate salt 6%, polyethylene glycol 2.5%, xanthans 0.5%, silicone 0.2%, water mend to 100%, makes 30% pair of careless ether mefenacet aqueous emulsion.
18 35% pairs of careless ether mefenacet aqueous emulsions of embodiment
Two careless ether 5%, mefenacet 30%, EGME 8%, acetone 6%, ethylene oxide-propylene oxide block copolymer 10%, ethylene glycol 2%, hydroxyethylcellulose 0.8%, C
10～20Saturated fat acids 0.5%, water are mended to 100%, make 35% pair of careless ether mefenacet aqueous emulsion.
19 14% pairs of careless ether mefenacet microemulsions of embodiment
Two careless ether 2%, mefenacet 12%, 3-methyl cyclohexanol ketenes 8%, methyl alcohol 7%, triethylene glycol 1.8%, agricultural newborn 1600#8%, xanthans 0.9%, silicone oil 0.3%, water supply 100%, make 14% pair of careless ether mefenacet microemulsion.
20 24% pairs of careless ether mefenacet microemulsions of embodiment
Two careless ether 6%, mefenacet 18%, toluene 10%, butanols 6%, propane diols 2%, methylcellulose 0.6%, agricultural newborn 34#6%, C
10～20Saturated fat acids 0.2%, water supply 100%, make 24% pair of careless ether mefenacet microemulsion.
21 32% pairs of careless ether mefenacet microemulsions of embodiment
Two careless ether 8%, mefenacet 24%, N-octylpyrrolidone 11%, acetone 7%, Magnesiumaluminumsilicate 0.7%, propane diols 3%, Nongru-700 #7%, silicone 0.4%, water supply 100%, make 32% pair of careless ether mefenacet microemulsion.
Application implementation example three: two careless ethers and mefenacet control rice weed field control effectiveness test
The control medicament: the complex composition of two careless ethers and mefenacet, produce by Shaanxi Welch Crop Protection Co., Ltd.'s research and development;
Contrast medicament: the two careless ether suspending agents (commercial) of 100 grams per liters;
50% mefenacet wetting powder (commercial).
If artificial weeding and clear water control treatment.
Method for using: convert behind 30 liters in the water evenly that cauline leaf sparges in each sub-district for every mu
Spraying time: on July 18th, 2010,, the weeds in field 1-3 leaf phase, carry out cauline leaf spraying 1 time in the paddy rice 7-8 leaf phase.
Investigation method and drug effect are calculated
Investigation weeds object is: weeds such as barnyard grass grass, moleplant seed, nutgrass flatsedge, Monochoria vaginalis, cyperus iria, needle spikesedge herb, investigate back 15 days, 40 days to strain preventive effect of weeds and 40 days fresh weight preventive effect.
The visual test medicament does not have poisoning to paddy rice to be taken place.
Result of the test is seen table 2 respectively with analysis.
The table 2 pair careless ether mefenacet control paddy field weed test of pesticide effectiveness
The table 2 pair careless ether mefenacet built composition for preventing and controlling paddy field weed test of pesticide effectiveness
Can know two careless ethers and mefenacet is composite that paddy rice barnyard grass grass, moleplant seed, nutgrass flatsedge, Monochoria vaginalis, cyperus iria, needle spikesedge herb are had good control efficiency by table 2; Preventive effect is superior to single agent preventive effect; And contrast medicament, artificial weeding, with respect to significant difference between the rate of growth of clear water control treatment; And have quick-acting and lasting effect preferably, in this experimental drug scope, to rice safety.
Wetting powder the key technical indexes of the present invention:
Table 3
Water dispersible granules the key technical indexes of the present invention:
Table 4
Suspending agent the key technical indexes of the present invention:
Table 5
Suspension emulsion the key technical indexes of the present invention:
Table 6
Aqueous emulsion the key technical indexes of the present invention:
Table 7
Microemulsion the key technical indexes of the present invention:
Table 8
Claims (6)
1. Herbicidal combinations that contains two careless ethers and mefenacet, it is characterized in that: Herbicidal combinations contains pair careless ethers 1～40%, mefenacet 1～80%, auxiliary agent and excipient.
2. the Herbicidal combinations that contains two careless ethers and mefenacet according to claim 1 is characterized in that: Herbicidal combinations contains two careless ethers 1～30%, mefenacet 5～60%, auxiliary agent and excipient.
3. the Herbicidal combinations that contains two careless ethers and mefenacet according to claim 2 is characterized in that: Herbicidal combinations contains two careless ethers 1～20%, mefenacet 10～40%, auxiliary agent and excipient.
4. the Herbicidal combinations that contains two careless ethers and mefenacet according to claim 1, it is characterized in that: composition is processed wetting powder, water dispersible granules, suspending agent, suspension emulsion, microemulsion, aqueous emulsion.
5. the Herbicidal combinations that contains two careless ethers and mefenacet according to claim 1 is used to prevent and treat the application of careless and other grassy weeds of paddy field barnyard grass, broad leaved weed, sedge weed.
6. the Herbicidal combinations that contains two careless ethers and mefenacet according to claim 5 is used to prevent and treat the application of barnyard grass grass, lady's-grass, green foxtail, eleusine indica, wild oat, difformed galingale herb, cyperus iria, moleplant seed, annual nutgrass flatsedge, fescue Japanese grass, flat stalk grass, Monochoria vaginalis, Monochoria korsakowii, wild arrowhead, rhizoma alismatis, pondweed, pipewort, needle spikesedge herb, mexicana, Procumbent Falsepimpernel, triquetrousc murdannia herb.
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| CN 201110140928 CN102326561A (en) | 2011-05-27 | 2011-05-27 | Weeding composition containing carfentrazone-ethyl and mefenacet |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103651523A (en) * | 2013-12-06 | 2014-03-26 | 济南凯因生物科技有限公司 | Water dispersible granules containing phthalthrin and application |
| CN103766331A (en) * | 2014-01-22 | 2014-05-07 | 云南财经大学 | Mefenacet microemulsion and preparation method thereof |
| 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 |
| CN106386796A (en) * | 2016-08-29 | 2017-02-15 | 美丰农化有限公司 | Bispyribac sodium-cyhalofop butyl suspoemulsion and preparation method thereof |
| CN106665614A (en) * | 2016-12-11 | 2017-05-17 | 广东中迅农科股份有限公司 | Weeding composition containing penoxsulam, bispyribac-sodium and mefenacet |
-
2011
- 2011-05-27 CN CN 201110140928 patent/CN102326561A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103651523A (en) * | 2013-12-06 | 2014-03-26 | 济南凯因生物科技有限公司 | Water dispersible granules containing phthalthrin and application |
| CN103766331A (en) * | 2014-01-22 | 2014-05-07 | 云南财经大学 | Mefenacet microemulsion and preparation method thereof |
| CN103766331B (en) * | 2014-01-22 | 2015-06-03 | 云南财经大学 | Mefenacet microemulsion and preparation method thereof |
| 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 |
| CN106386796A (en) * | 2016-08-29 | 2017-02-15 | 美丰农化有限公司 | Bispyribac sodium-cyhalofop butyl suspoemulsion and preparation method thereof |
| CN106665614A (en) * | 2016-12-11 | 2017-05-17 | 广东中迅农科股份有限公司 | Weeding composition containing penoxsulam, bispyribac-sodium and mefenacet |
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