CN103814920A - Weeding composition containing topramezone and penoxsulam - Google Patents
Weeding composition containing topramezone and penoxsulam Download PDFInfo
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- CN103814920A CN103814920A CN201410070735.1A CN201410070735A CN103814920A CN 103814920 A CN103814920 A CN 103814920A CN 201410070735 A CN201410070735 A CN 201410070735A CN 103814920 A CN103814920 A CN 103814920A
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- Prior art keywords
- penoxsuam
- azoles humulone
- benzene azoles
- herbicidal combinations
- penoxsulam
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Abstract
A weeding composition is disclosed. The weeding composition comprises effective ingredients, namely topramezone and penoxsulam, and the mass ratio of topramezone to penoxsulam is 1-50:50-1. The effective ingredients topramezone and penoxsulam in the preparation account for 1%-80% of the mass of the whole preparation, and the rest is auxiliary ingredients which are allowed to be used and accepted in a pesticide. Dosage forms of the weeding composition include missible oil, a suspending agent, wettable pulvis, water dispersible granules, an emulsion in water, a micron emulsion, a particulate agent and microcapsules. The weeding composition has wide weed control spectrum and can be used to effectively control barnyard grass, Chinese sprangletop, annual cyperaceae weeds, annual gramineous weeds in warm season and many broad leaf weeds.
Description
Technical field
The present invention relates to agriculture chemical compounding technical field, particularly relate to a kind of Herbicidal combinations that contains benzene azoles humulone and penoxsuam.
Background technology
Benzene azoles humulone is a kind of weed killer herbicide that BASF Aktiengesellschaft produces, and its chemical name is [3-(4,5-dihydro-1,2-oxazole-3-yl)-4-formoxyl 0-tolyl] (5-hydroxyl-1-methyl-pyrazol-4-yl) ketone.Benzene azoles humulone is benzoylpyrazole herbicides, and broad weed-killing spectrum prevents and kill off that corn field annual weed is effective and the lasting period is long, normal use effect safety.This medicine activity is high, consumption is extremely low, after seedling, use optimum period wide, use flexibly, broad weed-killing spectrum, can prevent and kill off annual warm season grassy weed and broad leaved weed, herbicide spectrum comprises knotgrass, Echinochloa, setaria, eleusine indica, wild millet, hill pearl millet, difformed galingale herb, cyperus iria, Amaranthus, Polygonum, Chenopodium, Xanthium, black nightshade, sandbur, kitchen garden, fennel fiber crops, Thorn-Apple, weasel hemp nettle, Matricaria, artemisiifolia, wild mustard, cicely etc., particularly can effectively prevent and kill off the not good green foxtail of mesotrione preventive effect, lady's-grass, eleusine indica.
Penoxsuam is with weed killer herbicide after the seedling of being developed by Tao Nongke company of the U.S., it is triazolopyrimidine sulfonamide weed killer herbicide, its chemical name is 3-(2,2-difluoroethoxy)-N-(5,8-dimethoxy-[1,2,4] triazol [1,5-C] pyrimidine-2-base)-α, α, α-fluoroform phenyl-2-sulfonamide.Penoxsuam is rice field broad-spectrum herbicide, can effectively prevent and kill off barnyard grass (comprising the barnyard grass to Stam F-34, dichloro quinolinic acid and anti-acetyl-CoA carboxylase tool resistance), moleplant seed and annual sedge weed, and effective to numerous broad leaved weeds, different stamen flower as raw in natural pond, carp intestines, sesbania, ring flower, Monochoria vaginalis etc.Lasting period reaches 30～60 days, the weeds harm of full season of a drug energy basic controlling.Meanwhile, it also can prevent and kill off anti-bensulfuron-methyl weeds in rice field, and many broad-leaveds and sedge weed and barnyard grass etc. are had to residual activity, is the widest kind of herbicide spectrum in weed killer herbicide for current rice field.
Reasonably the composite or mixture of chemical herbicide has expansion herbicidal spectrum, improve control efficiency, extend the optimum period for applying fertilizer, reduce dosage, reduce poisoning, reduce residual, delay the positive feature such as drug-fast generation and development, mixture of herbicides or mixture are one of the effective methods the most addressing the above problem.We filter out benzene azoles humulone and penoxsuam composite on the basis of lab screening and field trial, have obvious synergistic effect.And there is no at present people about benzene azoles humulone and the composite Herbicidal combinations of penoxsuam and application reported.
Summary of the invention
Based on above situation, the object of the invention is to provide a kind of new and effective agricultural chemicals Herbicidal combinations.Broad weed-killing spectrum, can effectively prevent and kill off barnyard grass, moleplant seed, annual sedge weed, annual warm season grassy weed effective to numerous broad leaved weeds.
Technical scheme of the present invention realizes by following measures:
A kind of Herbicidal combinations, in this Herbicidal combinations, the mass ratio of active ingredient benzene azoles humulone and penoxsuam is 1～50: 50～1, described Herbicidal combinations of the present invention is through toxicity test experimental verification, the mass ratio of benzene azoles humulone and penoxsuam is 1～20: 20～1 o'clock, synergistic effect was better.
The formulations of pesticide that described Herbicidal combinations of the present invention can be prepared are missible oil, suspending agent, wetting powder, water dispersible granules, aqueous emulsion, microemulsion, granule, microcapsule formulations.Benzene azoles humulone and the penoxsuam gross mass in preparation accounts for 1%～80% of the whole quality of the pharmaceutical preparations, while wherein accounting for 5%～50%, and toxicity and residually reach good balance, cost is also lower.
The specific embodiments of the formulations of pesticide that Herbicidal combinations of the present invention is mixed with is as follows:
Described Herbicidal combinations is cream preparation, and the mass fraction of component is: 1～50 part of benzene azoles humulone; 1～50 part of penoxsuam; 10～30 parts of conventional emulsifiers; 20～50 parts of conventional solvents; 1～5 part of conventional synergist.The concrete production stage of this cream preparation is first active ingredient benzene azoles humulone and penoxsuam to be added in solvent to the oily liquids that becomes transparent and homogeneous after adding again emulsifier, synergist to stir after dissolving completely, filling, can be made into the cream preparation of the present composition.
Described Herbicidal combinations is suspending agent, and the mass fraction of component is: 1～50 part of benzene azoles humulone; 1～50 part of penoxsuam; 5～20 parts of dispersants; 1～5 part of antifreezing agent; 0.1～2 part of thickener; 0.1～0.8 part of defoamer; 0～10 part of penetrating agent; 0.1～5 part of pH value conditioning agent; Water, surplus.The concrete production stage of this suspending agent is for first mixing other auxiliary agents, mix through high speed shear, add effective one-tenth benzene azoles humulone and penoxsuam, abrading-ball 2～3 hours in ball crusher, make a diameter all below 5mm, can be made into the suspending agent preparation of the present composition.
Described Herbicidal combinations is wetting powder, and the mass fraction of component is: 1～50 part of benzene azoles humulone; 1～50 part of penoxsuam; ; 3～10 parts of dispersants; 1～5 part of wetting agent; Filler, surplus.The concrete production stage of this wetting powder is: by above-mentioned formula, active ingredient benzene azoles humulone is mixed with penoxsuam and dispersant, wetting agent and filler, uniform stirring in stirred tank, after airslide disintegrating mill, mixing, can be made into the wetting powder of the present composition.
Described Herbicidal combinations is water dispersible granules, and the mass fraction of component is: 1～50 part of benzene azoles humulone; 1～50 part of penoxsuam; 3～10 parts of dispersants; 1～10 part of wetting agent; 1～5 part of disintegrant; Filler surplus.The concrete production stage of this water dispersible granules is: by above-mentioned formula, active ingredient benzene azoles humulone is mixed with penoxsuam and dispersant, wetting agent, disintegrant and filler, pulverize with micro jet, through mediating, then add and in fluidized bed prilling dryer, carry out after granulation, dry, screening, through sample analysis, can be made into the water dispersible granules of the present composition.
Described Herbicidal combinations is aqueous emulsion, and the mass fraction of component is: 1～50 part of benzene azoles humulone; 1～50 part of penoxsuam; 3～30 parts of emulsifier; 5～15 parts of solvents; 2～15 parts of stabilizing agents; 1～5 part of antifreezing agent; 0.1～8 part of defoamer; 0.2～2 part of thickener; Water, surplus.The concrete production stage of this aqueous emulsion is: first benzene azoles humulone and penoxsuam, solvent and emulsifier, cosolvent are added together, make to be dissolved into uniform oil phase; By part water, antifreeze, other the insecticides adjuvant such as antimicrobial mixes into uniform water; When reactor high speed stirs, oil phase is added to water, slowly add water until reach phase inversion point, open clipper and carry out high speed shear, and add remaining water, shear about half an hour, form the aqueous emulsion of oil-in-water type, can be made into the aqueous emulsion of the present composition.
Described Herbicidal combinations is microemulsion, and the mass fraction of component is: 1～50 part of benzene azoles humulone; 1～50 part of penoxsuam; 10～30 parts of emulsifier, 1～8 part of antifreezing agent, 0.5～10 part of stabilizing agent, 20～50 parts of conventional solvent cosolvents.Benzene azoles humulone and penoxsuam are dissolved completely with cosolvent, then add other compositions such as emulsifier, antifreezing agent stabilizing agent, evenly mix, finally add water, after fully stirring, can be made into microemulsion.
Described Herbicidal combinations is granule, and the mass fraction of component is: 1～50 part of benzene azoles humulone; 1～50 part of penoxsuam; 1～10 part of wetting dispersing agent; 0.1～5 part of thickener; 0.1～5 part of defoamer; Castor oil, surplus is supplied.Each components such as active ingredient benzene azoles humulone and penoxsuam, dispersant, stabilizing agent, defoamer and solvent are mixed in the ratio of formula, put into after the grinding of sand milling still, send in mixer for well-distribution and mix and get product.
Described Herbicidal combinations is microcapsule formulations, and the mass fraction of component is: 1～50 part of benzene azoles humulone; 1～50 part of penoxsuam; 5～20 parts, urea; 5～20 parts, formaldehyde; 5～20 parts of emulsifying dispersants; 1～5 part of antifreezing agent; 0.1～2 part of thickener; 0.1～0.8 part of defoamer; Water, surplus.In the there-necked flask that agitating device is housed, add urea and formaldehyde (amount of substance ratio is about l:1.5～2.0), with the left and right, pH value to 8～9 of sodium hydroxide solution regulator solution, then be warming up to 70～80 ℃, reaction obtains stable urea resin prepolymer.Get a certain amount of benzene azoles humulone and penoxsuam and be dissolved in cyclohexane, and add emulsifying dispersant in solution, follow vigorous stirring, be made into the O/W type stable emulsion take the aqueous solution containing emulsifying dispersant as water.Above-mentioned urea resin prepolymer is added in emulsion, regulate pH value, polymerization reaction take place under acid catalysis condition, is wrapped oil phase substance, forms microcapsule granule.Slowly heat up, solidify, temperature is controlled at 40～50 ℃, hardening time 1h.Selection adds appropriate auxiliary agent, the microcapsule suspending agent that gets final product stablely.
Wherein above-described emulsifier is selected from calcium dodecyl benzene sulfonate and aliphatic acid polyethenoxy ether, alkylphenol polyoxyethylene sulfosuccinate, styrylphenol polyoxyethylene ether, polyoxyethylene nonylphenol ether, castor oil polyoxyethylene ether, aliphatic acid polyethenoxy base ester, any or more than one any mixtures than forming in polyoxyethylene aliphatic alcohol ether.
Described solvent is dimethylbenzene or biodiesel, toluene, diesel oil, methyl alcohol, ethanol, n-butanol, isopropyl alcohol, turpentine-based vegetable oil code name is ND-45, solvent naphtha, dimethyl formamide, dimethyl sulfoxide (DMSO), one or more in water equal solvent are arbitrarily than the mixture of composition.
It is LG-3, GY-D1252, GY-D1256, SNWGF-01 that described dispersant is selected from polycarboxylate code name, lignosulfonates code name is 201107,21108, alkylphenol polyoxyethylene methyl ether condensate sulfate, alkylsulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, polyoxyethylene carboxylate, aliphatic amine polyoxyethylene ether, one or more in fatty acid glyceride APEO.
Described wetting agent is selected from lauryl sodium sulfate, calcium dodecyl benzene sulfonate, Nekal BX, moistening bleeding agent F, alkylbenzenesulfonate polyoxyethylene triphen phosphenylic acid salt dimly, spaonin powder, silkworm excrement, one or more in soapberry powder.
Described disintegrant is selected from bentonite, urea, ammonium sulfate, aluminium chloride, citric acid, succinic acid, one or more in sodium bicarbonate.
Described thickener is selected from xanthans, carboxymethyl cellulose, carboxyethyl cellulose, methylcellulose, Magnesiumaluminumsilicate, in polyvinyl alcohol one or more.
Described stabilizing agent is selected from sodium citrate, the one in resorcinol.
Described antifreezing agent is selected from ethylene glycol, propane diols, one or more in glycerine.
Described defoamer is selected from silicone oil, silicone compound, C
10-20saturated fat acid compounds, C
8-10one or more of fatty alcohol.
Described filler is selected from kaolin, diatomite, bentonite, attapulgite, white carbon, starch, one or more in precipitated calcium carbonate.
The present invention has obvious synergistic effect take active ingredient as the complex weedicide of benzene azoles humulone and penoxsuam, delay the drug-fast generation in key, and reduce one-tenth and produced cost and use cost, broad weed-killing spectrum, can effectively prevent and kill off barnyard grass, moleplant seed, annual sedge weed, annual warm season grassy weed effective to numerous broad leaved weeds.
Embodiment
For making technical scheme of the present invention, object and advantage are clearer, and the present invention describes with following specific embodiment, but the present invention is not limited to these examples.The mode that effect experiment of the present invention adopts indoor biometrics and field trial to combine, if no special instructions, the ratio of below mentioning is all ratio of quality and the number of copies.
Embodiment: benzene azoles humulone proportioning co-toxicity experiments different from penoxsuam.
1.1 reagent agents:
97% the former medicine of benzene azoles humulone, 96% the former medicine of penoxsuam, above-mentioned former medicine provides by research and development department of extra large rel medicine company limited company.
1.2 test targets:
Moleplant seed.
1.3 experimental procedures:
Adopt potted plant cauline leaf facture (NY/T1155.4-2006): at the in-built quantitative soil of polypots of high 6 ㎝, diameter 9 ㎝, to sow in polypots for examination target weed seed 15-20 grain, after covering the fine earth that 0.5-1 ㎝ is thick, be placed on cultivation in greenhouse, treat that weeds grow to the 2-4 leaf phase and carry out cauline leaf spraying processing, every alms bowl hydrojet 1mL, every processing repeats 4 times, and establishes the not contrast that is treated to containing medicament.After processing, examination is just placed in cultivation in the greenhouse in, and the growing state of routine observation target weeds is estimated target be injured symptom and growth inhibition situation, and claimed acrial part fresh weight or strain fresh weight, the toxicity action with form fresh weight inhibiting rate evaluation medicament to target weeds after 15d.
1.4 control times: test is processed and estimated target be injured symptom and growth inhibition situation after 15d, and claims acrial part fresh weight.
1.5 data statistics and analysis:
According to investigation statistics, calculate fresh weight inhibiting rate (%).
Fresh weight inhibiting rate P (%)=(contrast fresh weight-processing fresh weight)/processing fresh weight × 100%.
Synergy evaluation method:
Evaluate weed killer herbicide mode of application (NY/T1155.7-2006) according to Gowing method, its formula is as follows:
E
0＝X+Y-XY/100
In formula, X is benzene azoles humulone fresh weight inhibiting rate to target weeds when alone with certain dosage;
Y is penoxsuam fresh weight inhibiting rate to target weeds when alone with certain dosage;
E
0theoretical value to target weeds fresh weight inhibiting rate during for benzene azoles humulone and two kinds of pharmacy mix of penoxsuam;
Measured value to target weeds fresh weight inhibiting rate when E is benzene azoles humulone and two kinds of pharmacy mix of penoxsuam.
Evaluation criterion: work as E-E
0when > 10%, be expressed as synergistic effect, as-10% < E-E
0when < 10%, be expressed as summation action, work as E-E
0when <-10%, be expressed as antagonism.
The toxicity test result of two kinds of medicaments of 2.1 benzene azoles humulones and penoxsuam to moleplant seed
Table 1 be two kinds of medicaments of benzene azoles humulone and penoxsuam mix virulence measurement result
Virulence test example shows, while being 1:50～50:1 dilution, shows certain synergistic effect in active ingredient benzene azoles humulone and penoxsuam ratio, and the synergistic effect that wherein benzene azoles humulone and penoxsuam are 1:20～20:1 is the most obvious.Result of the test shows, under indoor conditions, benzene azoles humulone and penoxsuam compound synergic effect are good, and suggestion is carried out further field control effectiveness test to suitable proportion 1:20～20:1 left and right mixture preparation, to evaluate its field practical application effect.
3, field control effectiveness test
3.1 field control effectiveness test eliminating weed in wheat fields
Test in proving ground, Wheat in Henan Province field, the consistent middle fertility of soil fertility, when test, humidity is moderate, and experimental field main weeds has clearvers, bromegrass etc., weeds are evenly distributed.Result of the test is as follows:
Table 2 pyridine sulphur grass amine and the composite field efficiency test of florasulam
Field experiment result shows, benzene azoles humulone penoxsuam is all better with the composite preventive effect to weeds such as wheat paddock grass family, broadleaved herbs of 3:1 ratio, estimate according to field, within the scope of test dose, plant growth is normal, have no plant and produce poisoning and anomaly, illustrate that it is safe to wheat.
3.2 field control effectiveness tests are prevented and kill off paddy field weed
Test site is positioned at three bridge fore-and-aft gangway villages, Fu Chun street, Fuyang City, and rice varieties is that II is excellent 084, and pH value is 7.2, belongs to flat area, middle fertility, and experimental field main weeds has barnyard grass, moleplant seed etc., weeds are evenly distributed.Result of the test is as follows:
Table 3 pyridine sulphur grass amine and the composite field efficiency test of florasulam
Field experiment result shows, benzene azoles humulone penoxsuam is all better with the composite preventive effect to weeds such as paddy field grass family, broadleaved herbs of 3:1 ratio, estimate according to field, within the scope of test dose, plant growth is normal, have no plant and produce poisoning and anomaly, illustrate that it is safe to paddy rice.
To sum up virulence and field experiment result verification, the Herbicidal combinations that the present invention contains benzene azoles humulone and penoxsuam, be mainly used in preventing and kill off broad leaved weed, the grassy weed of wheat paddock and paddy field, and to target crop safety, compared with single dose, Herbicidal combinations of the present invention has mechanism of action uniqueness, there is consumption few, weeding is general more extensive, and the lasting period is longer, more the obviously advantage such as environmental protection.So research and development of the present invention and popularization have great social effect and environment protection significance.
Claims (4)
1. a Herbicidal combinations, is characterized in that: the active ingredient of this Herbicidal combinations is benzene azoles humulone and penoxsuam binary built, and all the other are auxiliary element, and wherein the mass ratio of active ingredient benzene azoles humulone and penoxsuam is 1～50: 50～1.
2. Herbicidal combinations according to claim 1, is characterized in that: benzene azoles humulone and the penoxsuam gross mass in preparation accounts for 1%～80% of the whole quality of the pharmaceutical preparations.
3. Herbicidal combinations according to claim 2, is characterized in that: benzene azoles humulone and the penoxsuam gross weight in preparation accounts for 5%～50% of the whole quality of the pharmaceutical preparations.
4. according to the Herbicidal combinations described in claim 1 or 2 or 3, it is characterized in that: the formulations of pesticide that this Herbicidal combinations can be prepared are missible oil, suspending agent, wetting powder, water dispersible granules, aqueous emulsion, microemulsion, granule, microcapsule formulations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070735.1A CN103814920A (en) | 2014-02-28 | 2014-02-28 | Weeding composition containing topramezone and penoxsulam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410070735.1A CN103814920A (en) | 2014-02-28 | 2014-02-28 | Weeding composition containing topramezone and penoxsulam |
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| CN103814920A true CN103814920A (en) | 2014-05-28 |
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|---|---|---|---|
| CN201410070735.1A Pending CN103814920A (en) | 2014-02-28 | 2014-02-28 | Weeding composition containing topramezone and penoxsulam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106665612A (en) * | 2016-12-03 | 2017-05-17 | 安徽丰乐农化有限责任公司 | Corn post-emergence weeding composition containing topramezone and florasulam |
-
2014
- 2014-02-28 CN CN201410070735.1A patent/CN103814920A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106665612A (en) * | 2016-12-03 | 2017-05-17 | 安徽丰乐农化有限责任公司 | Corn post-emergence weeding composition containing topramezone and florasulam |
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Application publication date: 20140528 |