CN104472512A - Herbicide in paddy field - Google Patents
Herbicide in paddy field Download PDFInfo
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- CN104472512A CN104472512A CN201410693082.2A CN201410693082A CN104472512A CN 104472512 A CN104472512 A CN 104472512A CN 201410693082 A CN201410693082 A CN 201410693082A CN 104472512 A CN104472512 A CN 104472512A
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- herbicide
- cyhalofop
- paddy field
- butyl
- fenoxaprop
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Abstract
The invention relates to a herbicide in a paddy field. The herbicide comprises the following effective components: penoxsulam, cyhalofop-butyl and fenoxaprop-p-ethyl. The herbicide disclosed by the invention has synergistic effects; the preventing and killing effects on annual weeds in the paddy field are obviously superior to that of individual use of each single agent; the herbicide controlling spectrum is expanded; meanwhile, the use amount of the herbicide is reduced; the drug resistance of the weeds is delayed; and the pollution to the environment is relieved.
Description
Technical field
The invention belongs to technical field of pesticide, be specifically related to a kind of Synergistic response composition pesticide being active ingredient with penoxsuam, cyhalofop-butyl, fenoxaprop, be mainly applicable to prevent and kill off paddy field annual weed.
Background technology
Penoxsuam (penoxsulam), for rice field broad-spectrum herbicide, effectively can prevent and kill off barnyard grass (comprising the barnyard grass to Stam F-34, dichloro quinolinic acid and anti-acetyl-CoA carboxylase tool resistance), annual sedge weed, and it is effective to numerous broad leaved weed, as natural pond raw different stamen flower, carp intestines, sesbania, ring flower, Monochoria vaginalis etc., lasting period reaches 30 ~ 60 days, a drug energy basic controlling full season Weed infestation.Meanwhile, it also can prevent and kill off anti-bensulfuron-methyl weeds in rice field, and has residual activity to many broad-leaveds and sedge weed and barnyard grass etc., but invalid to moleplant seed weeds, as needed control, and can be mixed with cyhalofop-butyl.
Cyhalofop-butyl (cyhalofop-buty) is only kind paddy rice to tight security in fragrant phenoxy phenoxy propionic acid weed killer herbicide, the same with such other kinds, is also Uptake and translocation weed killer herbicide.By blade and the leaf sheath absorption of plant corpus, phloem conducts, accumulate the meristem zone in plant corpus, resist acetyl-CoA carboxylase (ACCase), fatty acid is synthesized stop, the growth division of cell can not normally be carried out, and membranous system etc., containing fat structural deterioration, finally cause Plant death.Be absorbed into weeds Mortality Ratio from cyhalofop-butyl comparatively slow, generally need 1-3 week, weeds symptom is after administration as follows: the tender shoots atrophy of four leaf phases, causes death.The Lao Ye change of two leaf stage is minimum, keeps green; Be mainly used in preventing and kill off important grassy weed, cyhalofop-butyl is efficient to moleplant seed, have certain preventive effect to low age barnyard grass, also can prevent and kill off, lady's-grass, Paspalum distichum, green foxtail, eleusine indica, amur foxtail etc., to sedge weed and broad leaved weed invalid.
Fenoxaprop (fenoxaprop-P-ethyl), belonging to heterocyclic oxy group phenoxy propionic acid class weed killer herbicide, mainly by suppressing key enzyme one acetyl-CoA carboxylase of fatty acid synthesis, thus inhibit the synthesis of fatty acid.Medicament is by cauline leaf Assimilation and conductivity to the growing point of meristematic tissue and root, and effect rapidly, stops growing for after dispenser 2-3 days, 5-6 days lobus cardiacus chlorosis purpling looks, meristematic tissue browning look, and blade is withered gradually, is the extremely strong cauline leaf inorganic agent of selectivity.
Penoxsuam, cyhalofop-butyl, fenoxaprop composite without relevant report.
The present invention possesses the prospect of industrial applications, by certain technological means, can excipient be the formulation that suspending agent, oil-suspending agent, water dispersible granules, wetting powder, effervescent tablet, granulae effervescentes etc. are convenient to agriculturally use.
The present inventor is to penoxsuam, cyhalofop-butyl, fenoxaprop mixture conducts in-depth research, find penoxsuam, cyhalofop-butyl, fenoxaprop mixture has Synergistic to respond, especially to moleplant seed (Leptochloa chinensis), barnyard grass (Echinochloa crusgalli), lady's-grass (Digitaria sanguinalis), mao matang (Digitaria chrysoblephara), eleusine indica (Eleusine indica), green foxtail (Setaria viridis), bent grass (Agrostis matsumurae), amur foxtail (Setaria viridis), Paspalum distichum (Paspalum paspaloides), Yunnan ditch millet (Paspalum delavayi), hairy flowered paspalum (Paspalum dilatatum) has obvious Synergistic to respond.
Summary of the invention
The object of the invention is to problem when solution prior art Pesticides single dose is used alone, paddy field weed easily developed immunity to drugs and weeding is thorough, control efficiency is poor, a kind of efficient, wide spectrum, economy, safety are provided, are conducive to the Herbicidal combinations of the paddy field weed comprehensive regulation.
Technical scheme of the present invention is: a kind of for herbicide for paddy field, active ingredient is penoxsuam, cyhalofop-butyl, fenoxaprop, the percentage by weight of penoxsuam in weed killer herbicide is 0.1% ~ 20%, the percentage by weight of cyhalofop-butyl in weed killer herbicide is the percentage by weight of 0.1% ~ 40%, fenoxaprop in weed killer herbicide is 0.1% ~ 20%, and all the other are allow in agricultural chemicals to use and acceptable auxiliary element.
Described weed killer herbicide according to well known to a person skilled in the art method, can be processed into the application forms that the applicable agricultural productions such as suspending agent, oil-suspending agent, water dispersible granules, wetting powder, effervescent tablet, granulae effervescentes use.
Herbicide for paddy field provided by the invention, is applicable to prevent and kill off paddy field annual weed.
The frequency of administration of composition provided by the 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.
When described weed killer herbicide is processed into suspending agent, each component weight percentage is: penoxsuam 0.1 ~ 40%, cyhalofop-butyl 0.1 ~ 40% ， fenoxaprop 0.1 ~ 50%, dispersant 0.1 ~ 15%, wetting agent 0.1-15%, thickener 0.1 ~ 2%, 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.
When described weed killer herbicide is processed into oil-suspending agent, each component weight percentage is: penoxsuam 0.1 ~ 40%, cyhalofop-butyl 0.1～oxazole diclofop-methyl 0.1 ~ 50%, dispersant 0.1 ~ 16%, wetting agent 0.1-15%, thickener 0.1 ~ 2%, 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.
When described weed killer herbicide is processed into water dispersible granules, each component weight percentage is: penoxsuam 0.1 ~ 75%, cyhalofop-butyl 0.1 ~ 50% fenoxaprop 0.1 ~ 40%, dispersant 0.1 ~ 14%, wetting agent 0.1 ~ 11%, disintegrant 0.1 ~ 10%, 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.
When described weed killer herbicide is processed into wetting powder, each component weight percentage is:: penoxsuam 0.1 ~ 75%, cyhalofop-butyl 0.1 ~ 50% ， fenoxaprop 0.1 ~ 40%, dispersant 0.1 ~ 15%, wetting agent 0.1 ~ 14%, 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.
When described weed killer herbicide is processed into effervescent tablet, each component weight percentage is: penoxsuam 0.1 ~ 75%, cyhalofop-butyl 0.1 ~ 50%, fenoxaprop 0.1 ~ 40%, dispersant 0.1 ~ 15%, wetting agent 0.1 ~ 10%, solid acid 0.1 ~ 30%, carbonate 0.1 ~ 30%, binding agent 0.1 ~ 11%, flowing regulator 0.1 ~ 12%, solid carrier complements to 100%.Concrete production stage is: active ingredient, wetting agent, dispersant, solid acid, carbonate, flowing regulator and filler are fully mixed, then 0.3 ~ 5 micron is crushed to the broken machine of low-temperature submicron powder, then the binding agent with water furnishing pasty state is added, tablet press machine film-making is used after stirring, finally by oven dry, whole grain, detect, pack after, the effervescent tablet of obtained corresponding weight percentage.
When described weed killer herbicide is processed into granulae effervescentes, each component weight percentage is: penoxsuam 0.1 ~ 75%, cyhalofop-butyl 0.1 ~ 50% fenoxaprop 0.1 ~ 40%, dispersant 0.1 ~ 16%, wetting agent 0.1 ~ 11%, solid acid 0.1 ~ 30%, carbonate 0.1 ~ 30%, binding agent 0.1 ~ 10%, flowing regulator 0.1 ~ 10%, solid carrier complements to 100%.Active ingredient, wetting agent, dispersant, solid acid, carbonate, flowing regulator and filler are fully mixed; then 0.3 ~ 5 μm is crushed to the broken machine of low-temperature submicron powder; then the binding agent with water furnishing pasty state is added; with granulator granulation after stirring; finally by oven dry, whole grain, detect, pack after, the granulae effervescentes of obtained corresponding weight percentage.
In above-mentioned processing formulation, 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, 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.
Described binding agent can be one or more in sucrose, polyvinyl alcohol, polyethylene glycol, sodium carboxymethylcellulose, calcium carboxymethylcellulose, carboxy-propyl cellulose, dextrin, amylodextrin, polyvinylpyrrolidone, viscosity kaolin, paraffin, rosin etc.
Described solid acid can be one or more in citric acid, succinic acid, maleic acid, fumaric acid, tartaric acid, oxalic acid, malonic acid, malic acid, succinic acid, hexanedioic acid, boric acid, phosphoric acid, benzoic acid, sulfamic acid, salicylic acid, glutamic acid, phenylacetic acid, nicotinic acid or sorbic acid etc.
Described carbonate can be one or more in sodium carbonate, potash, ammonium carbonate, calcium carbonate, lithium carbonate, sodium bicarbonate, saleratus, lithium bicarbonate, sodium sesquicarbonate, bicarbonate tripotassium or bicarbonate three ammonium etc.
Described flowing regulator can be one or more in calcium stearate, dolomol, barium stearate, titanium dioxide, talcum powder, Stepanol MG, polysorbate, wheat starch or Sodium Benzoate etc.
The frequency of administration of the present composition and amount of application change with crops, weeds, weather condition and have small variations, can by the object using suitable dosage reach effectively control.
Triple combination of the present invention (i.e. penoxsuam cyhalofop-butyl fenoxaprop) expands herbicide spectrum, composition has Synergistic response to target, especially to moleplant seed (Leptochloa chinensis), bent grass (Agrostis matsumurae) has the response of obvious Synergistic, excellent fix can be provided for preventing and kill off of paddy field annual weed, especially with moleplant seed (Leptochloa chinensis), the paddy field of bent grass (Agrostismatsumurae) advantage weeds, for the paddy field weed comprehensive regulation, there is positive effect.
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.
Embodiment 1: the Toxicity Determination test of penoxsuam, cyhalofop-butyl, fenoxaprop and composite moleplant seed (Leptochloa chinensis) thereof, bent grass (Agrostis matsumurae)
Evaluate weed killer herbicide associated form (NY/T 1155.7-2006) according to Colby method, its formula is as follows:
In formula:
A be penoxsuam alone with certain dosage time fresh weight inhibition to target weeds;
B be cyhalofop-butyl alone with certain dosage time fresh weight inhibition to target weeds;
Fresh weight inhibition to target weeds when C Wei fenoxaprop is alone with certain dosage;
N is the weed killer herbicide kind number of mixture;
E
0for the theoretical value to target weeds fresh weight inhibition when penoxsuam, cyhalofop-butyl, fenoxaprop three kinds of pharmacy mix;
E is penoxsuam, cyhalofop-butyl, fenoxaprop three kinds of pharmacy mix time to target weeds fresh weight inhibition be contrast measured value.
Evaluation criterion: work as E
0during ﹣ E > 10%, be expressed as synergistic function; As ﹣ 10%≤E
0during ﹣ E≤10%, show as collaborative summation action; Work as E
0during ﹣ E < ﹣ 10%, show as joint action of antagonism.
Table one, penoxsuam, cyhalofop-butyl, fenoxaprop and the composite Toxicity Determination result table to moleplant seed (Leptochloa chinensis) thereof
Evaluate weed killer herbicide associated form according to Colby method, table one data show, and penoxsuam, cyhalofop-butyl, fenoxaprop triple combination are remarkable to moleplant seed (Leptochloachinensis) synergistic effect, and E0-E value is all greater than 20%.
Table two, penoxsuam, cyhalofop-butyl, fenoxaprop and the composite Toxicity Determination result table to bent grass (Agrostis matsumurae) thereof
Evaluate weed killer herbicide associated form according to Colby method, table two data show, and penoxsuam, cyhalofop-butyl, fenoxaprop triple combination are remarkable to bent grass (Agrostis matsumurae) synergistic effect, E
0-E value is all greater than 20%.
Embodiment two: 30% penoxsuam cyhalofop-butyl fenoxaprop 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 granulation, after drying, screening, namely obtain 30% penoxsuam cyhalofop-butyl fenoxaprop water dispersible granules.
Embodiment three: 29% penoxsuam cyhalofop-butyl fenoxaprop 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 29% penoxsuam cyhalofop-butyl fenoxaprop wetting powder.
Embodiment four: 22% penoxsuam cyhalofop-butyl fenoxaprop suspending agent
Pulverized in advance in proportion by above-mentioned formula, then add in sand mill and grind, after high shear mixing, allotment obtaining 23% penoxsuam cyhalofop-butyl fenoxaprop suspending agent.
Embodiment five: 20% penoxsuam cyhalofop-butyl fenoxaprop 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, namely can be made into the 20% penoxsuam cyhalofop-butyl fenoxaprop oil-suspending agent that flowing to property is good after emulsification.
Embodiment six: prevent and kill off paddy field annual weed field control effectiveness test
Table three, penoxsuam, cyhalofop-butyl, fenoxaprop composition are to paddy field annual weed field control effectiveness test result
In sum, instant component is reasonable, penoxsuam cyhalofop-butyl fenoxaprop triple combination has Synergistic response, especially to moleplant seed (Leptochloachinensis), bent grass (Agrostis matsumurae), there is remarkable synergy response effect, expand herbicide spectrum, especially the paddy field being advantage weeds with moleplant seed (Leptochloachinensis), bent grass (Agrostis matsumurae) for paddy field provides excellent weed control solution, is applicable to prevent and kill off paddy field annual weed.
Claims (4)
1. a herbicide for paddy field, it is characterized in that: active ingredient is penoxsuam, cyhalofop-butyl, fenoxaprop, the percentage by weight of penoxsuam in weed killer herbicide is 0.1% ~ 20%, and the percentage by weight of cyhalofop-butyl in weed killer herbicide is the percentage by weight of 0.1% ~ 40%, fenoxaprop in weed killer herbicide is 0.1% ~ 20%.
2. a kind of herbicide for paddy field according to claim 1, is characterized in that: described weed killer herbicide also contains pesticidal preparations auxiliary element, to make the application forms of applicable agricultural use.
3. a kind of herbicide for paddy field according to claim 2, is characterized in that: its formulation is the one in suspending agent, oil-suspending agent, water dispersible granules, wetting powder, effervescent tablet, granulae effervescentes.
4. a kind of herbicide for paddy field according to claim 1, is characterized in that: be applicable to prevent and kill off paddy field annual weed.
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| CN201410693082.2A CN104472512B (en) | 2014-11-25 | 2014-11-25 | Herbicide for paddy field |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105766950A (en) * | 2016-05-13 | 2016-07-20 | 创新美兰（合肥）股份有限公司 | Fenoxaprop-P-ethyl, cyhalofop-butyl and penoxsulam compound dispersible oil suspension concentrate and preparation method thereof |
| CN107372534A (en) * | 2017-07-18 | 2017-11-24 | 长江大学 | A kind of effervescent tablet containing fenoxaprop active ingredient and preparation method thereof |
| CN110622966A (en) * | 2019-09-29 | 2019-12-31 | 海南天道种业有限公司 | Herbicide composition for paddy field and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102388894A (en) * | 2011-12-16 | 2012-03-28 | 联保作物科技有限公司 | Weeding composition |
| CN103314971A (en) * | 2013-06-19 | 2013-09-25 | 北京燕化永乐农药有限公司 | Weeding composition |
| WO2014130964A1 (en) * | 2013-02-25 | 2014-08-28 | Dow Agrosciences Llc | Synergistic weed control with penoxsulam and acetochlor |
-
2014
- 2014-11-25 CN CN201410693082.2A patent/CN104472512B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102388894A (en) * | 2011-12-16 | 2012-03-28 | 联保作物科技有限公司 | Weeding composition |
| WO2014130964A1 (en) * | 2013-02-25 | 2014-08-28 | Dow Agrosciences Llc | Synergistic weed control with penoxsulam and acetochlor |
| CN103314971A (en) * | 2013-06-19 | 2013-09-25 | 北京燕化永乐农药有限公司 | Weeding composition |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105766950A (en) * | 2016-05-13 | 2016-07-20 | 创新美兰（合肥）股份有限公司 | Fenoxaprop-P-ethyl, cyhalofop-butyl and penoxsulam compound dispersible oil suspension concentrate and preparation method thereof |
| CN107372534A (en) * | 2017-07-18 | 2017-11-24 | 长江大学 | A kind of effervescent tablet containing fenoxaprop active ingredient and preparation method thereof |
| CN110622966A (en) * | 2019-09-29 | 2019-12-31 | 海南天道种业有限公司 | Herbicide composition for paddy field and preparation method thereof |
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