CN103125488A - Weedicide composition containing dimethenamid-p and pendimethalin - Google Patents
Weedicide composition containing dimethenamid-p and pendimethalin Download PDFInfo
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- CN103125488A CN103125488A CN2013101038904A CN201310103890A CN103125488A CN 103125488 A CN103125488 A CN 103125488A CN 2013101038904 A CN2013101038904 A CN 2013101038904A CN 201310103890 A CN201310103890 A CN 201310103890A CN 103125488 A CN103125488 A CN 103125488A
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- pendimethalin
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Abstract
The invention relates to a weedicide composition containing dimethenamid-p and pendimethalin. The mass ratio of the active components (dimethenamid-p and pendimethalin) in the weedicide composition is (1-70):(70-1); the total mass of the active components (dimethenamid-p and pendimethalin) in the preparation accounts for 1-80% of the total mass of the preparation, and the rest is auxiliary components which are allowed to use and accepted in the weedicide; and the preparation formulation of the weedicide composition can be emulsifiable oil, suspending agent, wettable powder, water-dispersible granules, water emulsion, microemulsion, granules and microcapsules. The invention can be widely used for weed control in fields of multiple crops such as corns, soybeans, beets, peanuts, cotton, direct seeding upland rice, potatoes, tobacco, vegetables and the like.
Description
Technical field
The present invention relates to the agriculture chemical compounding technical field, particularly relate to a kind of Herbicidal combinations that contains smart dimethenamid and Pendimethalin.
Background technology
The essence dimethenamid is acetamide-group herbicides.Be applicable to the crops such as corn, soybean, peanut and beet, prevent and kill off multiple annual gramineous weed such as barnyard grass, lady's-grass, Cowhells, green foxtail etc. and various broad leaved weeds such as Amaranthus retroflexus, beggar-ticks, shepherd's purse, Monochoria vaginalis, pineapple weed, Li Micao and earth almona etc.Very safe to crop.2-chloro-N-(2,4-dimethyl-3-thienyl)-N-(2-methoxyl group-1-Methylethyl) acetamide
Pendimethalin is a kind of outstanding dry crop selective herbicide, can be widely used in the various crop field weedings such as corn, soybean, peanut, cotton, direct-seeding dry rice, potato, tobacco, vegetables.At present, pendimethalin is the large weed killer herbicide in the world the 3rd, and sales volume is only second to steriland herbicide glyphosate, paraquat, is also the selective herbicide of sales volume maximum in the world.Pendimethalin is that before the selectivity bud, after bud, upland field soil is processed weed killer herbicide.Weeds absorb medicament by the young shoot of sprouting, and enter medicament and tubulin binding in plant corpus, suppress the mitosis of plant cell, thereby cause weeds dead.N-(1-ethyl propyl)-2,6-dinitro-3,4-dimethylaniline
Reasonably chemical herbicide is composite or be mixed and have the expansion herbicidal spectrum, improve control efficiency, extend the optimum period for applying fertilizer, reduce dosage, reduce poisoning, reduce residual, delay the positive characteristics such as drug-fast generation and development, mixture of herbicides or to be mixed be one of the effective method the most that addresses the above problem.We filter out smart dimethenamid and Pendimethalin composite on the basis of lab screening and field trial, have obvious synergistic effect.And about smart dimethenamid and the composite Herbicidal combinations of Pendimethalin and use and there is no at present the people and 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.Can be widely used in the various crop field weedings such as corn, soybean, beet, peanut, cotton, direct-seeding dry rice, potato, tobacco, vegetables.
Technical scheme of the present invention realizes by following measures:
A kind of Herbicidal combinations that contains smart dimethenamid and Pendimethalin, in this Herbicidal combinations, the mass ratio of active ingredient essence dimethenamid and Pendimethalin is 1～70: 70～1, described Herbicidal combinations of the present invention is through the toxicity test experimental verification, the mass ratio of essence dimethenamid and Pendimethalin is 1～40: 40～1 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.Essence dimethenamid and the gross mass of Pendimethalin in preparation account for 1%～80% of the whole quality of the pharmaceutical preparations, when wherein accounting for 5%～50%, and toxicity and the residual balance preferably that reaches, 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: 1～70 part of smart dimethenamid; 1～70 part of Pendimethalin; 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 adds emulsifier, the synergist rear oily liquids that becomes transparent and homogeneous that stirs after dissolving fully in solvent again for first active ingredient essence dimethenamid and Pendimethalin being added, can namely can be made into the cream preparation of the present composition.
Described Herbicidal combinations is suspending agent, and the mass fraction of component is: 1～70 part of smart dimethenamid; 1～70 part of Pendimethalin; 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 active ingredient essence dimethenamid and pendimethalin, abrading-ball is 2～3 hours in ball crusher, make a diameter all below 5mm, namely 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: 1～70 part of smart dimethenamid; 1～70 part of Pendimethalin; 40 parts; 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 essence dimethenamid is mixed with Pendimethalin and dispersant, wetting agent and filler, uniform stirring in stirred tank, mixing after airslide disintegrating mill, namely 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: 1～70 part of smart dimethenamid; 1～70 part of Pendimethalin; 3～10 parts of dispersants; 1～10 part of wetting agent; 1～5 part of disintegrant; The filler surplus.The concrete production stage of this water dispersible granules is: by above-mentioned formula, active ingredient essence dimethenamid and Pendimethalin and dispersant, wetting agent, disintegrant and filler are mixed, pulverize with micro jet, through mediating, then add and carry out granulation, drying, screening in the fluidized bed prilling dryer by sample analysis, namely 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: 1～70 part of smart dimethenamid; 1～70 part of Pendimethalin; 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: at first smart dimethenamid and Pendimethalin, solvent and emulsifier, cosolvent are added together, make to be dissolved into uniform oil phase; With part water, antifreeze, other the insecticides adjuvant such as antimicrobial mixes into uniform water; When the reactor high speed stirs, oil phase is added water, slowly add water until reach the 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, namely can be made into the aqueous emulsion of the present composition.
Described Herbicidal combinations is microemulsion, and the mass fraction of component is: 1～70 part of smart dimethenamid; 1～70 part of Pendimethalin; 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.Smart dimethenamid and Pendimethalin are dissolved fully with cosolvent, then add other compositions such as emulsifier, antifreezing agent stabilizing agent, evenly mix, add at last entry, can be made into microemulsion after fully stirring.
Described Herbicidal combinations is granule, and the mass fraction of component is: 1～70 part of smart dimethenamid; 1～70 part of Pendimethalin; 1～10 part of wetting dispersing agent; 0.1～5 part of thickener; 0.1～5 part of defoamer; Castor oil, surplus is supplied.Active ingredient essence dimethenamid is mixed in the ratio of formula with each components such as Pendimethalin, dispersant, stabilizing agent, defoamer and solvents, after putting into the grinding of sand milling still, send into the interior mixing of mixer for well-distribution and get product.
Described Herbicidal combinations is microcapsule formulations, and the mass fraction of component is: 1～70 part of smart dimethenamid; 1～70 part of Pendimethalin; 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 being housed, the there-necked flask of agitating device adds urea and formaldehyde (molar ratio is about l:1.5～2.0), with the pH value to 8 of sodium hydroxide solution regulator solution～9 left and right, then be warming up to 70～80 ℃, reaction obtains stable urea resin prepolymer.The former medicine of getting a certain amount of smart dimethenamid and Pendimethalin is dissolved in cyclohexane, and adds emulsifying dispersant in solution, follows vigorous stirring, and the aqueous solution that is made into to contain emulsifying dispersant is the O/W type stable emulsion of water.Above-mentioned urea resin prepolymer is added in emulsion, regulate the pH value, polymerization reaction take place under the 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, the 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, and diesel oil, methyl alcohol, ethanol, n-butanol, isopropyl alcohol, turpentine oil, solvent naphtha, dimethyl formamide, dimethyl sulfoxide (DMSO), one or more in the water equal solvent are arbitrarily than the mixture that forms.
Described dispersant is selected from polycarboxylate, lignosulfonates, alkylphenol polyoxyethylene methyl ether condensate sulfate, the alkylsulfonate calcium salt, the naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, polyoxyethylene carboxylate, aliphatic amine polyoxyethylene ether, one or more in the fatty acid glyceride APEO.
Described wetting agent is selected from lauryl sodium sulfate, calcium dodecyl benzene sulfonate, and Nekal BX, moistening bleeding agent F, alkylbenzenesulfonate polyoxyethylene triphen is phosphenylic acid salt dimly, spaonin powder, silkworm excrement, one or more in the 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, a kind of 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
10-20The saturated 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 complex weedicide of the present invention take active ingredient as smart dimethenamid and Pendimethalin has obvious synergistic effect, delay the drug-fast generation in key, and reduced to become to produce cost and use cost, can be widely used in the various crop field weedings such as corn, soybean, beet, peanut, cotton, direct-seeding dry rice, potato, tobacco, vegetables.
Embodiment
For making technical scheme of the present invention, purpose 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: smart dimethenamid proportioning co-toxicity experiments different from Pendimethalin.
1.1 reagent agent:
96% the former medicine of smart dimethenamid, the former medicine of 97% Pendimethalin, above-mentioned former medicine provides by research and development department of extra large rel medicine company limited company.
1.2 test target:
Green foxtail.
1.3 experimental procedure:
Adopt potted plant cauline leaf facture (NY/T1155.4-2006): at the in-built quantitative soil of polypots of high 6 ㎝, diameter 9 ㎝, will be for the sowing of examination target weed seed 15-20 grain in polypots, be placed on cultivation in the greenhouse after covering the thick fine earth of 0.5-1 ㎝, 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 contrast that is treated to that does not contain medicament.After processing, examination just is placed in the greenhouse in and cultivates, the growing state of routine observation target weeds, and be injured symptom and growth inhibition situation of range estimation target after 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.
1.4 control time: range estimation target be injured symptom and growth inhibition situation are processed after 15d in test, and claim the 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%.
The synergy evaluation method:
Estimate weed killer herbicide mode of application (NY/T1155.7-2006) according to the Gowing method, its formula is as follows:
E
0＝X+Y-XY/100
In formula, X is smart dimethenamid fresh weight inhibiting rate to target weeds when alone with certain dosage;
Y is Pendimethalin fresh weight inhibiting rate to target weeds when alone with certain dosage;
E
0During for smart dimethenamid and two kinds of pharmacy mix of Pendimethalin to the theoretical value of target weeds fresh weight inhibiting rate;
When E is smart dimethenamid and two kinds of pharmacy mix of Pendimethalin to the measured value of target weeds fresh weight inhibiting rate.
Evaluation criterion: work as E-E
0Be expressed as synergistic effect in the time of＞10%, as-10%＜E-E
0Be expressed as summation action in the time of＜10%, work as E-E
0Be expressed as antagonism in the time of＜-10%.
2.1 the toxicity test result of two kinds of medicaments of smart dimethenamid and Pendimethalin to green foxtail
Table 1 is the toxicity test result of smart dimethenamid and two kinds of medicament single doses of Pendimethalin
Table 2 is the toxicity test result that two kinds of medicaments of smart dimethenamid and Pendimethalin mix
The virulence test example shows, is that 1:70～70:1 shows certain synergistic effect when diluting in active ingredient essence dimethenamid and Pendimethalin ratio, and wherein smart dimethenamid and Pendimethalin are that the synergistic effect of 4:40～40:4 is the most obvious.Result of the test shows, smart dimethenamid and Pendimethalin compound synergic effect are good under indoor conditions, and suggestion is carried out further field control effectiveness test to suitable proportion 4:40～40:4 left and right mixture preparation, to estimate its field practical application effect.
3, field control effectiveness test
Test is given birth in Feixi County San He town and is surveyed the corn field proving ground, the consistent middle fertility of soil fertility, and during test, humidity is moderate, and experimental field main weeds has lady's-grass, green foxtail etc., weeds are evenly distributed.Result of the test is as follows:
The smart dimethenamid of table 3 and the composite field efficiency test of Pendimethalin
The field experiment result shows, 36% smart dimethenamid+12% Pendimethalin is all better to the preventive effect of the weeds such as paddy field grass family, broadleaved herb, according to estimating in the field, in the test dose scope, plant growth is normal, has no plant and produces poisoning and anomaly, illustrates that it is safe to corn.
To sum up virulence and field experiment result verification, the present invention contains the Herbicidal combinations of smart dimethenamid and pendimethalin, can be widely used in the various crop field weedings such as corn, soybean, beet, peanut, cotton, direct-seeding dry rice, potato, tobacco, vegetables.And to the target crop safety, compare with single dose, Herbicidal combinations of the present invention has mechanism of action uniqueness, has consumption few, and weeding is general more extensive, and the lasting period is longer, more the obvious 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. Herbicidal combinations that contains smart dimethenamid and Pendimethalin, it is characterized in that: the active ingredient of this Herbicidal combinations is smart dimethenamid and Pendimethalin binary built, all the other are auxiliary element, and wherein the mass ratio of active ingredient essence dimethenamid and Pendimethalin is 1～70: 70～1.
2. Herbicidal combinations according to claim 1, it is characterized in that: smart dimethenamid and the Pendimethalin gross mass in preparation accounts for 1%～80% of the whole quality of the pharmaceutical preparations.
3. Herbicidal combinations according to claim 2, it is characterized in that: smart dimethenamid and the Pendimethalin gross weight in preparation accounts for 5%～50% of the whole quality of the pharmaceutical preparations.
4. according to claim 1 and 2 or 3 described Herbicidal combinations, 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.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101038904A CN103125488A (en) | 2013-03-28 | 2013-03-28 | Weedicide composition containing dimethenamid-p and pendimethalin |
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| CN2013101038904A CN103125488A (en) | 2013-03-28 | 2013-03-28 | Weedicide composition containing dimethenamid-p and pendimethalin |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104206386A (en) * | 2014-09-26 | 2014-12-17 | 青岛瀚生生物科技股份有限公司 | Herbicide compounded with dimethenamid and imazaquin |
| CN114431236A (en) * | 2020-11-06 | 2022-05-06 | 青岛清原化合物有限公司 | Ternary herbicidal compositions comprising carboxylic acid derivative-substituted oxyiminoaryl compounds and their use |
-
2013
- 2013-03-28 CN CN2013101038904A patent/CN103125488A/en active Pending
Non-Patent Citations (3)
| Title |
|---|
| PAMELA J.S.HUTCHINSON,COREY V.RANSOM,RICK A.BOYDSTON,BRENT R.BEU: "Dimethenamid-p:Efficacy and Potato(Solanum tuberosum)Variety Tolerance", 《WEED TECHNOLOGY》 * |
| R.KIERZEK: "Development of new herbicide strategies for weed control in blue lupin (Lupinus angustifolius L.)", 《JOURNAL OF PLANT DISEASES AND PROTECTION》 * |
| S.NAGY, P.REISINGER, P.POMSAR: "Experiences of introduction of imidazolinone-resistant sunflower in Hungary from the herbological point of view", 《JOURNAL OF PLANT DISEASES AND PROTECTION》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104206386A (en) * | 2014-09-26 | 2014-12-17 | 青岛瀚生生物科技股份有限公司 | Herbicide compounded with dimethenamid and imazaquin |
| CN114431236A (en) * | 2020-11-06 | 2022-05-06 | 青岛清原化合物有限公司 | Ternary herbicidal compositions comprising carboxylic acid derivative-substituted oxyiminoaryl compounds and their use |
| WO2022095816A1 (en) * | 2020-11-06 | 2022-05-12 | 青岛清原化合物有限公司 | Ternary herbicidal composition comprising carboxylic acid derivative-substituted oxyiminoaryl compound and use thereof |
| CN114431236B (en) * | 2020-11-06 | 2024-02-02 | 青岛清原化合物有限公司 | Ternary herbicidal compositions comprising carboxylic acid derivative substituted oxyiminoaryl compounds and uses thereof |
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