CN104365603A - Mixed herbicide containing diflufenican and bromoxynil octanoate, and preparation method thereof - Google Patents
Mixed herbicide containing diflufenican and bromoxynil octanoate, and preparation method thereof Download PDFInfo
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- CN104365603A CN104365603A CN201410496550.7A CN201410496550A CN104365603A CN 104365603 A CN104365603 A CN 104365603A CN 201410496550 A CN201410496550 A CN 201410496550A CN 104365603 A CN104365603 A CN 104365603A
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Abstract
The invention belongs to the technical field of chemical synthesis, and provides a mixed herbicide containing two effective components of diflufenican and bromoxynil octanoate, and a preparation method and an application thereof. A mass ratio of diflufenican to bromoxynil octanoate in the mixed herbicide is 1-70:1-20, the total mass percentage of the two effective components in the herbicide is 6-75%, and the mixed herbicide can be used for controlling grassy weeds and broadleaf weeds in corn and wheat fields. The mixed herbicide provided by the invention has the advantages of high herbicidal activity, broad herbicidal spectrum, long lasting period, high safety, high efficiency, broad spectrum, good compatibility to environment, and safety of humans and animals, and is a high-quality chemical herbicide for corn and wheat.
Description
Technical field
The invention belongs to technical field of pesticide, relate to a kind of mixed herbicide including diflufenican and bromoxynil octanoate two kinds of active ingredients, and the preparation method and application of this kind of mixed herbicide.
Background technology
Diflufenican (diflufenican), chemical name: N-(2,4-difluorophenyl)-2-[(3-trifluoromethyl) phenoxy group]-3-pyridine anilide.This medicine belongs to herxheimer-liked reaction inhibitor, and absorb carotenoid content in the weeds plant of medicament and decline, cause Destruction of Chlorophyll and cell rupture, weeds show as young shoot decolouring or white, and last plant wilt is dead.Be mainly used in corn, soybean and wheatland and prevent and kill off multiple annual gramineous weed and some broad leaved weed.Especially to be clearvers, Veronica removal effect obvious.
Bromoxynil octanoate (bromoxynil octanoate), chemical name: 3,5-dibromo decoyl oxygen benzonitrile.This medicine is cauline leaf process contact killing type weed killer herbicide after selectivity seedling, absorb primarily of blade, extremely limited conduction is carried out in plant corpus, by each process of inhibited photosynthesis, comprise and suppress photophosphorylation reaction and electron transmission, particularly photosynthetic Hill reaction, make plant tissue downright bad rapidly, thus reaching herbicide object, when temperature is higher, speeding-up blade is withered.Effectively can prevent and kill off the annual broadleaf weed of the Tanakas such as wheat, barley, corn, Chinese sorghum, sugarcane, paddy rice, lawn, as Veronica, chickweed, pivot store, knotweed, lamb's-quarters, the weeds such as amaranth, to oily favorable effect such as Amaranthus retroflexus, black nightshade and knotweeds.
Current corn, cornfield herbicidal limit by safety, herbicide spectrum is also limited, be used alone the generation that a kind of weed killer herbicide single dose can not control corn, wheat weeds completely effectively, moreover some weed killer herbicide is due to water-soluble large or the field lasting period is oversize, consumption is excessive or dispenser is uneven all easily causes residual hazard.
Summary of the invention
It is limited that the object of the invention is to solve simple weed killer herbicide herbicide spectrum in prior art, and security hidden trouble, provides one mixed herbicide efficiently and safely.
1. the invention provides a kind of mixed herbicide including diflufenican and bromoxynil octanoate, this mixed herbicide with diflufenican and bromoxynil octanoate for principle active component, wherein, the mass ratio of diflufenican and bromoxynil octanoate is 1-70:1-20, and diflufenican and bromoxynil octanoate gross mass mass percent in weed killer herbicide is 6-75%.
2. above-mentioned 1 mixed herbicide provided, wherein, the mass ratio of diflufenican and bromoxynil octanoate is 15-70:5, and diflufenican and bromoxynil octanoate gross mass mass percent in weed killer herbicide is 20-75%.
3. above-mentioned 1 mixed herbicide provided, wherein, the mass ratio of diflufenican and bromoxynil octanoate is 15-50:5-20, and diflufenican and bromoxynil octanoate gross mass mass percent in weed killer herbicide is 20-70%; Be preferably, the mass ratio of diflufenican and bromoxynil octanoate is 15-40:5-10, and diflufenican and bromoxynil octanoate gross mass mass percent in weed killer herbicide is 20-50%.
4 above-mentioned 1 mixed herbicides provided, wherein, the mass ratio of diflufenican and bromoxynil octanoate is 40-70:5-10, and diflufenican and bromoxynil octanoate gross mass mass percent in weed killer herbicide is 50-75%.
5. above-mentioned 1 mixed herbicide provided, wherein, the mass ratio of diflufenican and bromoxynil octanoate is 50-70:5-20, and diflufenican and bromoxynil octanoate gross mass mass percent in weed killer herbicide is 70-75%.
6. above-mentioned 1 mixed herbicide provided, wherein, the mass ratio of diflufenican and bromoxynil octanoate is 40-50:10-20, and diflufenican and bromoxynil octanoate gross mass mass percent in weed killer herbicide is 50-70%.
7. the described mixed herbicide that provides of above-mentioned 1-6, also comprises the agricultural agent that can add in agricultural formulations.
Agricultural agent, can comprise inert liquid carrier, solid carrier, surfactant, bonding agent, dispersant, spreading agent, sticker, antifreezing agent, anticaking agent, anti-decomposition agent etc.
Wherein inert liquid carrier can be monohydric alcohol, polyalcohol, ketone, ethers, fat hydrocarbon, halogenated hydrocarbon etc., as vegetable oil; Above inert liquid carrier can one or more be used in combination.Solid carrier can be natural mineral matter class, inorganic salts, starch, cellulose etc., as ammonium sulfate, diatomite, kaolin; Above solid carrier can one or more be used in combination.
Surfactant can in water, demonstrate gelation or the surfactant of swellability, can be fatty acid ester, alkyl ether, acetylenediol, polyoxy acetylene castor-oil plant wet goods non-ionic surface active agent, as anion surfactants such as alkylphenol polyoxyethylene, the rare block compound of polyoxyethylene polyoxy third or alkyl sulfate, lignosulfonates, soaps, as cationic surfactants such as sodium lignin sulfonate, neopelex or laurylamine hydrochloride, acetic acid stearylamines.Above surfactant can one or more be used in combination.
Other, as bonding agent, dispersant, spreading agent, sticker, antifreezing agent, anticaking agent, anti-decomposition agent etc., if dispersant is if di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate, thickener are as white carbon, be not particularly limited, the material that can realize identical function of any this area, can mix or in single application and the present invention.
8. above-mentioned 7 mixed herbicides provided, its formulation is missible oil, suspending agent, aqueous emulsion, microemulsion, wetting powder, water dispersible granules.
9. above-mentioned 7 preparation methods that mixed herbicide is provided, comprise: diflufenican and bromoxynil octanoate are mixed according to both certainty ratios, add agricultural agent, carry out stirring and evenly mixing, form creamy, suspension, water and milk shape, microemulsion, wettable powdery, the granular mixed herbicide of aqueous dispersion.
Set ratio refers to the ratio set forth in method described in above-mentioned any one of 1-6, the kind of the plant removed as required, needs the herbicidal effect setting reached.According to the difference of the agricultural agent added, the mixed herbicide formulation of formation can be missible oil, suspending agent, aqueous emulsion, microemulsion, wetting powder, water dispersible granules.
10. the mixed herbicide that provides of above-mentioned any one of 1-8 is in the grass family removed in corn, wheatland and the application in broad leaved weed.
Grass family and broad leaved weed comprise lady's-grass, barnyard grass, white grass, amur foxtail, annual bluegrass, reed, wild oat, hispid arthraxon, speedwell, green foxtail, Setaria glauca, eleusine indica, india lovegrass, volume stem knotweed, black nightshade, chickweed, common vetch, field bindweed, weasel hemp nettle, pale persicaria, willow leaf thorn knotweed, Amaranthus retroflexus, dayflower, elscholtiza, penny cress, vetch, Descurainia sophia, little japanese bearbind, piemarker, redroot amaranth, clearvers, Siberian cocklebur, benbie, camomile, true forget menot, pansy, kitchen garden, black nightshade Veronica, pivot stores, lamb's-quarters, amaranth etc.
Beneficial effect:
1, activity of weeding is high.Diflufenican belongs to herxheimer-liked reaction inhibitor, and absorb carotenoid content in the weeds plant of medicament and decline, cause Destruction of Chlorophyll and cell rupture, weeds show as young shoot decolouring or white, and last plant wilt is dead.Bromoxynil octanoate is cauline leaf process contact killing type weed killer herbicide after selectivity seedling, absorb primarily of blade, extremely limited conduction is carried out in plant corpus, by each process of inhibited photosynthesis, comprise and suppress photophosphorylation reaction and electron transmission, particularly photosynthetic Hill reaction, make plant tissue downright bad rapidly, thus reaching herbicide object, when temperature is higher, speeding-up blade is withered.Herbicidal composition of the present invention can kill weeds by two kinds of different approaches, greatly can improve the removing activity of weed killer herbicide.
2, herbicidal spectrum is wide, and after lasting period long diflufenican mixes with bromoxynil octanoate, action compensating, herbicidal spectrum is wider, can be used in each vegetative period of crop safely, easy to use, extends the lasting period of medicament.
3, safety is high.Herbicidal composition of the present invention, is applied in corn, wheatland, and it can prevent and kill off various grass family and broad leaved weed in corn, wheatland, under the prerequisite that improve drug effect, has very high safety to crops.
Therefore, in sum, mixed herbicide provided by the invention has high-efficiency broad spectrum, reduces pesticide usage amount, reduces residue of pesticide, Environmental compatibility is good, to advantages such as person poultry safeties, is the corn of high-quality, wheatland crop chemistry weed killer herbicide.
embodiment
Below in conjunction with embodiment, the present invention will be further described, and the experimental technique of unreceipted actual conditions in the following example, usually according to the known approaches of this area.
Embodiment 1
Preparation production method conveniently, measure with the mixed herbicide mass percent finally obtained, get diflufenican 70%, bromoxynil octanoate 5%, adds agricultural agent: di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 6%, sodium lignin sulfonate 5%, blending and mixing, and constantly kaolin is added in whipping process, make whole mixture quality ratio reach 100%, and according to general step, form diflufenican, bromoxynil octanoate mixing quality than the wettable powdery mixed herbicide being 75%.
Embodiment 2
Preparation production method conveniently, measure with the mixed herbicide mass percent finally obtained, get diflufenican 15%, bromoxynil octanoate 5%, add agricultural agent: alkylphenol polyoxyethylene 3%, castor oil polyoxyethylene ether 2%, xanthans 0.1%, dimethylbenzene 20%, ethylene glycol 5%, blending and mixing, and constantly water is added in whipping process, make whole mixture quality ratio reach 100%, and according to general step, form diflufenican, bromoxynil octanoate mixing quality than the water and milk shape mixed herbicide being 20%.
Embodiment 3
Preparation production method conveniently, measure with the mixed herbicide mass percent finally obtained, get diflufenican 50%, bromoxynil octanoate 20%, adds agricultural agent: sodium lignin sulfonate 5%, lauryl sulfate 2%, ammonium sulfate 5%, blending and mixing, and constantly kaolin is added in whipping process, make whole mixture quality ratio reach 100%, and according to general step, form diflufenican, bromoxynil octanoate mixing quality mixed herbicide more granular than the aqueous dispersion being 70%.
Embodiment 4
Preparation production method conveniently, measure with the mixed herbicide mass percent finally obtained, get diflufenican 40%, bromoxynil octanoate 10%, add agricultural agent: dioctyl succinate disulfonate acid 0.5%, sodium lignin sulfonate 2.5%, xanthans 0.15%, glycerine 5%, polysiloxanes 0.2%, blending and mixing, and constantly water is added in whipping process, make whole mixture quality ratio reach 100%, and according to general step, form diflufenican, bromoxynil octanoate mixing quality than the suspension mixed herbicide being 50%.
Embodiment 5
Preparation production method conveniently, measure with the mixed herbicide mass percent finally obtained, get diflufenican 60%, bromoxynil octanoate 10%, adds agricultural agent: di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, blending and mixing, and constantly kaolin is added in whipping process, make whole mixture quality ratio reach 100%, and according to general step, form diflufenican, bromoxynil octanoate mixing quality mixed herbicide more granular than the aqueous dispersion being 70%.
Embodiment 6
Preparation production method conveniently, measure with the mixed herbicide mass percent finally obtained, get diflufenican 20%, bromoxynil octanoate 5%, adds agricultural agent: calcium dodecyl benzene sulfonate 5%, alkylphenol polyoxyethylene 3%, blending and mixing, and 200# solvent naphtha is constantly added in whipping process, make whole mixture quality ratio reach 100%, and according to general step, form diflufenican, bromoxynil octanoate mixing quality than the creamy mixed herbicide being 25%.
Embodiment 7
Preparation production method conveniently, measure with the mixed herbicide mass percent finally obtained, get diflufenican 5%, bromoxynil octanoate 1%, add agricultural agent: calcium dodecyl benzene sulfonate 5%, castor oil polyoxyethylene ether 5%, 200# solvent naphtha 15%, cyclohexanone 5%, ethylene glycol 5%, blending and mixing, and constantly water is added in whipping process, whole mixture quality ratio is reached to 100%, and according to general step, forms diflufenican, bromoxynil octanoate mixing quality than the microemulsion mixed herbicide being 6%.
Embodiment 8
Preparation production method conveniently, measure with the mixed herbicide mass percent finally obtained, get diflufenican 1%, bromoxynil octanoate 9%, add agricultural agent: methyl naphthalene sulfonic acid sodium formaldehyde contracting thing 6%, polyoxyethylene nonylphenol ether 3%, xanthans 0.3%, propane diols 5%, defoamer 0.2%, blending and mixing, and constantly water is added in whipping process, whole mixture quality ratio is reached to 100%, and according to general step, forms diflufenican, bromoxynil octanoate mixing quality than the suspension mixed herbicide being 10%.
Embodiment 9
1) toxicity determination test
Utilize the preparation of diflufenican (A) and bromoxynil octanoate (B) binary built in embodiment 1 ~ 4, measure its co-toxicity coefficient to Amaranthus retroflexus.
Test method:
The seed of quantitative Amaranthus retroflexus is seeded in respectively highly in the Disposable paper cup of 9cm, sows 12 seeds in every glass, cultivate in illumination box, when Amaranthus retroflexus 2 leaf phase and 4 leaf phase, make in crawler type the liquid to be measured composition spray spraying each concentration.Put into illumination box after process to cultivate at 27 DEG C, observe the preventive effect of each process to weeds every 5 days, record dead seedling number and plant height, after 30d, weigh the weeds fresh weight after each process, by the method that the nineteen sixties such as Sun Yunpei propose, calculate its toxicity regression curve and co-toxicity coefficient.Co-toxicity coefficient is greater than 120, shows that two kinds of active principles have synergistic effect, and co-toxicity coefficient is between 80-120, and show that two kinds of active principles are summation action, co-toxicity coefficient is less than 80, shows that two kinds of active principles have antagonism.Measurement result is as shown in table 1.
Table 1 toxicity measurement result
As can be seen from the above table, the co-toxicity coefficient after two kinds of active principles are composite is all greater than 120, illustrates that the present invention has obvious synergistic effect.
2) field control effectiveness test.
Reagent agent:
4 kinds of re-compounded binary herbicides in embodiment 1 ~ 4.
Contrast medicament:
50% diflufenican wetting powder (commercially available, Longdeng Chemical Co Ltd, Jiangsu provides), 25% bromoxynil octanoate missible oil (commercially available, agrochemical limited company green for a long time provides).
For studying thing: corn
Maize seedling grows fine, robust plant, without other damage by disease and insect
Prevent and kill off object:
Lady's-grass, clearvers two kinds of weeds.
Test method:
According to the area of experimental plot, the good various medicament of precise, after being watered dilution, utilizes knapsack sprayer, carries out even spraying, the Fan spray head selecting weed killer herbicide special of spraying.During spraying, liquid be noted evenly to spray application in experimental plot, the spray of anti-Zhiduo County, drain spray phenomenon.
After test, after medicine, 20d, 40d observe weeds death condition respectively, and the activity of weeding of more various medicament.
Embodiments of the invention preparation Herbicidal Testing Trials effect sees the following form 2 (after medicine 20d) and table 3 (after medicine 40d)
Table 2 field control effectiveness test result (after medicine 20d)
Table 3 field control effectiveness test result (after medicine 40d)
By table 2, table 3 is known, and Herbicidal combinations of the present invention has expansion herbicidal spectrum, improves activity of weeding, and has quick-acting and lasting effect.
Table 4 medicament is to the security survey result of crop
As shown in Table 4, the corn in each process community grows fine, and has no any medicine spot, illustrates that various medicament is all safe to corn.
Can know; above-described embodiment is only in order to illustrate the illustrative embodiments that inventive principle adopts; but the present invention is not limited only to this; those skilled in the art are not departing under real situation of the present invention; can make various improvement and change, these improve and change and also belong to protection scope of the present invention.
Claims (10)
1. one kind includes the mixed herbicide of diflufenican and bromoxynil octanoate, it is characterized in that: this mixed herbicide with diflufenican and bromoxynil octanoate for principle active component, wherein, the mass ratio of diflufenican and bromoxynil octanoate is 1-70:1-20, and diflufenican and bromoxynil octanoate gross mass mass percent in weed killer herbicide is 6-75%.
2. mixed herbicide according to claim 1, is characterized in that: the mass ratio of diflufenican and bromoxynil octanoate is 15-70:5, and diflufenican and bromoxynil octanoate gross mass mass percent in weed killer herbicide is 20-75%.
3. mixed herbicide according to claim 1, is characterized in that: the mass ratio of diflufenican and bromoxynil octanoate is 15-50:5-20, and diflufenican and bromoxynil octanoate gross mass mass percent in weed killer herbicide is 20-70%; Be preferably, the mass ratio of diflufenican and bromoxynil octanoate is 15-40:5-10, and diflufenican and bromoxynil octanoate gross mass mass percent in weed killer herbicide is 20-50%.
4. mixed herbicide according to claim 1, is characterized in that: the mass ratio of diflufenican and bromoxynil octanoate is 40-70:5-10, and diflufenican and bromoxynil octanoate gross mass mass percent in weed killer herbicide is 50-75%.
5. mixed herbicide according to claim 1, is characterized in that: the mass ratio of diflufenican and bromoxynil octanoate is 50-70:5-20, and diflufenican and bromoxynil octanoate gross mass mass percent in weed killer herbicide is 70-75%.
6. mixed herbicide according to claim 1, is characterized in that: the mass ratio of diflufenican and bromoxynil octanoate is 40-50:10-20, and diflufenican and bromoxynil octanoate gross mass mass percent in weed killer herbicide is 50-70%.
7. the mixed herbicide described in any one of claim 1-6, is characterized in that: this mixed herbicide also comprises the agricultural agent that can add in agricultural formulations.
8. mixed herbicide according to claim 7, is characterized in that the formulation of weed killer herbicide is missible oil, suspending agent, aqueous emulsion, microemulsion, wetting powder, water dispersible granules.
9. the preparation method of mixed herbicide described in claim 7, it is characterized in that: diflufenican and bromoxynil octanoate are mixed according to both certainty ratios, add agricultural agent, carry out stirring and evenly mixing, form creamy, suspension, water and milk shape, microemulsion, wettable powdery, the granular mixed herbicide of aqueous dispersion.
10. the mixed herbicide described in any one of claim 1-8 is in the grass family removed in corn, wheatland and the application in broad leaved weed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410496550.7A CN104365603A (en) | 2014-09-25 | 2014-09-25 | Mixed herbicide containing diflufenican and bromoxynil octanoate, and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410496550.7A CN104365603A (en) | 2014-09-25 | 2014-09-25 | Mixed herbicide containing diflufenican and bromoxynil octanoate, and preparation method thereof |
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| CN104365603A true CN104365603A (en) | 2015-02-25 |
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| CN201410496550.7A Pending CN104365603A (en) | 2014-09-25 | 2014-09-25 | Mixed herbicide containing diflufenican and bromoxynil octanoate, and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019215613A1 (en) * | 2018-05-07 | 2019-11-14 | Adama Agan Ltd. | Stable phytoene desaturase inhibitor herbicide formulation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5264411A (en) * | 1985-07-23 | 1993-11-23 | May & Baker Limited | Herbicidal method comprising the use of diflufenican |
| WO1998048624A1 (en) * | 1997-04-29 | 1998-11-05 | Isp Investments Inc. | Emulsifiable concentrate for low dosage fluorinated agrochemical |
| WO2006029736A1 (en) * | 2004-09-18 | 2006-03-23 | Bayer Cropscience Gmbh | Liquid plant protection formulation comprising diflufenican |
| GB2424583A (en) * | 2005-03-31 | 2006-10-04 | Sumitomo Chemical Co | Emulsifiable concentrate |
| GB2425955A (en) * | 2005-03-31 | 2006-11-15 | Sumitomo Chemical Co | Emulsifiable concentrate |
-
2014
- 2014-09-25 CN CN201410496550.7A patent/CN104365603A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5264411A (en) * | 1985-07-23 | 1993-11-23 | May & Baker Limited | Herbicidal method comprising the use of diflufenican |
| WO1998048624A1 (en) * | 1997-04-29 | 1998-11-05 | Isp Investments Inc. | Emulsifiable concentrate for low dosage fluorinated agrochemical |
| WO2006029736A1 (en) * | 2004-09-18 | 2006-03-23 | Bayer Cropscience Gmbh | Liquid plant protection formulation comprising diflufenican |
| GB2424583A (en) * | 2005-03-31 | 2006-10-04 | Sumitomo Chemical Co | Emulsifiable concentrate |
| GB2425955A (en) * | 2005-03-31 | 2006-11-15 | Sumitomo Chemical Co | Emulsifiable concentrate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019215613A1 (en) * | 2018-05-07 | 2019-11-14 | Adama Agan Ltd. | Stable phytoene desaturase inhibitor herbicide formulation |
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