CN104304254A - Mixed herbicide containing diflufenican and ethhoxyfen-ethyl and preparation method thereof - Google Patents
Mixed herbicide containing diflufenican and ethhoxyfen-ethyl and preparation method thereof Download PDFInfo
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- CN104304254A CN104304254A CN201410500372.0A CN201410500372A CN104304254A CN 104304254 A CN104304254 A CN 104304254A CN 201410500372 A CN201410500372 A CN 201410500372A CN 104304254 A CN104304254 A CN 104304254A
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- diflufenican
- ethoxyfen
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Abstract
The invention belongs to the technical field of chemical synthesis and provides a mixed herbicide containing two active ingredients, namely diflufenican and ethhoxyfen-ethyl, and a preparation method and an application of the mixed herbicide. Mass ratio of diflufenican to ethhoxyfen-ethyl in the mixed herbicide is 9-70:1-20. The total mass of diflufenican and ethhoxyfen-ethyl is 6-75% of the mass of the herbicide. The mixed herbicide can be used to prevent and remove annual gramineous weeds and broadleaved weeds in soybean and wheat fields. The mixed herbicide provided by the invention has advantages of high herbicidal activity, wide herbicidal spectrum, long persistent period, high safety, efficient broad spectrum and good environmental compatibility, is safe to human and livestock, and is an excellent chemical herbicide for soybean and triticeae crops.
Description
Technical field
The invention belongs to technical field of pesticide, relate to a kind of mixed herbicide including diflufenican and ethoxyfen-ethyl 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.
Ethoxyfen-ethyl (ethhoxyfen-ethyl); chemical name: O-(the chloro-5-of 2-(the chloro-α of 2-; α; α-three fluoro-P-tolyl oxygen) benzoyl)-Pfansteihl ethyl ester; can be absorbed rapidly by plant; but not easily conduct; a main action of contace poison; be mainly used in the broad leaved weed of seedling rear defence except crop Tanakas such as soybean, wheat, barley, peanut, peas; as more than ten kind of weeds such as piemarker, redroot amaranth, clearvers, Siberian cocklebur, benbie, camomile, true forget menot, pansy, kitchen garden, Amaranthus retroflexus, black nightshades, preventive effect is remarkable.Can comparatively fast decompose under illumination condition, in soil, the lasting period is short, substantially there is not residual toxicity and pollution problem, environmentally safe.
Current soybean, wheat class weed killer herbicide 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 soybean, wheat class 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 ethoxyfen-ethyl, this mixed herbicide with diflufenican and ethoxyfen-ethyl for principle active component, wherein, the mass ratio of diflufenican and ethoxyfen-ethyl is 9-70:1-20, and diflufenican and ethoxyfen-ethyl gross mass mass percent in weed killer herbicide is 6-75%.
2. above-mentioned 1 provide mixed herbicide, wherein, the mass ratio of diflufenican and ethoxyfen-ethyl is 40-50:10-20, and diflufenican and ethoxyfen-ethyl gross mass mass percent in weed killer herbicide is 50-70%.
3. above-mentioned 1 provide mixed herbicide, wherein, the mass ratio of diflufenican and ethoxyfen-ethyl is 50-60:5-20, and diflufenican and ethoxyfen-ethyl gross mass mass percent in weed killer herbicide is 65-70%.
4. above-mentioned 1 provide mixed herbicide, wherein, the mass ratio of diflufenican and ethoxyfen-ethyl is 60-70:5, and diflufenican and ethoxyfen-ethyl gross mass mass percent in weed killer herbicide is 65-75%.
5. above-mentioned 1 provide mixed herbicide, wherein, the mass ratio of diflufenican and ethoxyfen-ethyl is 50-70:5-20, and diflufenican and ethoxyfen-ethyl gross mass mass percent in weed killer herbicide is 70-75%.
6. above-mentioned 1 provide mixed herbicide, wherein, the mass ratio of diflufenican and ethoxyfen-ethyl is 40-70:5-10, and diflufenican and ethoxyfen-ethyl gross mass mass percent in weed killer herbicide is 50-75%; Be preferably, the mass ratio of diflufenican and ethoxyfen-ethyl is 40-60:5-10, and diflufenican and ethoxyfen-ethyl gross mass mass percent in weed killer herbicide is 50-65%.
7. the mixed herbicide that provides of above-mentioned any one of 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 and diflufenican and ethoxyfen-ethyl 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 preventing and kill off the application in soybean, wheatland in annual gramineae and broad leaved weed.
Annual gramineae and broad leaved weed comprise: lady's-grass, barnyard grass, annual bluegrass, wild oat, hispid arthraxon, speedwell, Setaria glauca, eleusine indica, india lovegrass, piemarker, redroot amaranth, clearvers, Siberian cocklebur, benbie, camomile, true forget menot, pansy, kitchen garden, Amaranthus retroflexus, black nightshade, Veronica 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.Ethoxyfen-ethyl, can be absorbed rapidly by plant, but the not easily main action of contace poison of conduction, can comparatively fast decompose under illumination condition, in soil, the lasting period is short, substantially there is not residual toxicity and pollution problem, environmentally safe.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.Meanwhile, different action time and the cooperation of the mode of action, make mixed herbicide provided by the invention more adapt to whole wheat, soybeans they grow process, by different modes weeding, reach good effect.
2, herbicidal spectrum is wide, and after lasting period long diflufenican mixes with ethoxyfen-ethyl, action compensating, herbicidal spectrum is wider, extends the lasting period of medicament.
3, safety is high.Herbicidal composition of the present invention, is applied in soybean, wheatland, and it can prevent and kill off various grass family and broad leaved weed in soybean, 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 soybean 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%, ethoxyfen-ethyl 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, ethoxyfen-ethyl 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 60%, ethoxyfen-ethyl 5%, adds agricultural agent: naphthalene sulfonic acid-formaldehyde condensation product 6.6%, wetting agent T 4.4%, white carbon 4%, 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, ethoxyfen-ethyl 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%, ethoxyfen-ethyl 20%, add agricultural agent: sodium lignin sulfonate 5%, lauryl sulfate 2%, ammonium sulfate 5%, blending and mixing, and constantly kaolin is added in whipping process, whole mixture quality ratio is made to reach 100%, and according to general step, form diflufenican, ethoxyfen-ethyl 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%, ethoxyfen-ethyl 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, ethoxyfen-ethyl 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%, ethoxyfen-ethyl 10%, add 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, whole mixture quality ratio is made to reach 100%, and according to general step, form diflufenican, ethoxyfen-ethyl 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%, ethoxyfen-ethyl 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, ethoxyfen-ethyl 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%, ethoxyfen-ethyl 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, ethoxyfen-ethyl 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 9%, ethoxyfen-ethyl 16%, add agricultural agent: phenethyl phenol polyethenoxy ether 7%, alkylbenzenesulfonate 3%, castor oil polyoxyethylene ether 6%, propane diols 3%, xanthans 1%, silicone oil 1.5%, blending and mixing, and constantly deionized water is added in whipping process, whole mixture quality ratio is made to reach to 100%, and according to general step, form diflufenican, ethoxyfen-ethyl mixing quality is than the suspension mixed herbicide being 25%.
Embodiment 9
1) toxicity determination test
Utilize the preparation of diflufenican (A) and ethoxyfen-ethyl (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, 12 seeds are sowed in every glass, cultivate in illumination box, when Amaranthus retroflexus grows to 2 leaf phases and 4 leaf phase, make in crawler type the liquid to be measured composition spray spraying each concentration, each process repeats 2 times.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, Huifeng Agricultural Chemistry Co., Ltd., Jiangsu provides), 10% ethoxyfen-ethyl water dispersion granule (commercially available, Jiangsu Changqing Agricultural Chemistry Co., Ltd. provides).
For studying thing: arbitrary commercially available soybean
Large bean seedlings grow fine, robust plant, without other damage by disease and insect
Prevent and kill off object:
Green foxtail, 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 soybean in each process community grows fine, and has no any medicine spot, illustrates that various medicament is all safe to soybean.
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 ethoxyfen-ethyl, it is characterized in that: this mixed herbicide with diflufenican and ethoxyfen-ethyl for principle active component, wherein, the mass ratio of diflufenican and ethoxyfen-ethyl is 9-70:1-20, and diflufenican and ethoxyfen-ethyl 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 ethoxyfen-ethyl is 40-50:10-20, and diflufenican and ethoxyfen-ethyl gross mass mass percent in weed killer herbicide is 50-70%.
3. mixed herbicide according to claim 1, is characterized in that: the mass ratio of diflufenican and ethoxyfen-ethyl is 50-60:5-20, and diflufenican and ethoxyfen-ethyl gross mass mass percent in weed killer herbicide is 65-70%.
4. mixed herbicide according to claim 1, is characterized in that: the mass ratio of diflufenican and ethoxyfen-ethyl is 60-70:5, and diflufenican and ethoxyfen-ethyl gross mass mass percent in weed killer herbicide is 65-75%.
5. mixed herbicide according to claim 1, is characterized in that: the mass ratio of diflufenican and ethoxyfen-ethyl is 50-70:5-20, and diflufenican and ethoxyfen-ethyl 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 ethoxyfen-ethyl is 40-70:5-10, and diflufenican and ethoxyfen-ethyl gross mass mass percent in weed killer herbicide is 50-75%; Be preferably, the mass ratio of diflufenican and ethoxyfen-ethyl is 40-60:5-10, and diflufenican and ethoxyfen-ethyl gross mass mass percent in weed killer herbicide is 50-65%.
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 ethoxyfen-ethyl 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 preventing and kill off the application in soybean, wheatland in annual gramineae and broad leaved weed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410500372.0A CN104304254A (en) | 2014-09-25 | 2014-09-25 | Mixed herbicide containing diflufenican and ethhoxyfen-ethyl and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410500372.0A CN104304254A (en) | 2014-09-25 | 2014-09-25 | Mixed herbicide containing diflufenican and ethhoxyfen-ethyl and preparation method thereof |
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| CN201410500372.0A Pending CN104304254A (en) | 2014-09-25 | 2014-09-25 | Mixed herbicide containing diflufenican and ethhoxyfen-ethyl and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018028318A1 (en) * | 2016-08-08 | 2018-02-15 | 江苏辉丰农化股份有限公司 | Weeding composition having synergistic effect |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19859224A1 (en) * | 1998-12-21 | 1999-05-06 | Novartis Ag | Synergistic herbicidal composition for selective weed control |
| DE19915013A1 (en) * | 1999-04-01 | 1999-08-26 | Novartis Ag | Synergistic herbicidal composition for e.g. maize, soya or cotton |
| CN1332608A (en) * | 1998-11-10 | 2002-01-23 | 辛根塔参与股份公司 | Herbicidal composition |
-
2014
- 2014-09-25 CN CN201410500372.0A patent/CN104304254A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332608A (en) * | 1998-11-10 | 2002-01-23 | 辛根塔参与股份公司 | Herbicidal composition |
| DE19859224A1 (en) * | 1998-12-21 | 1999-05-06 | Novartis Ag | Synergistic herbicidal composition for selective weed control |
| DE19915013A1 (en) * | 1999-04-01 | 1999-08-26 | Novartis Ag | Synergistic herbicidal composition for e.g. maize, soya or cotton |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018028318A1 (en) * | 2016-08-08 | 2018-02-15 | 江苏辉丰农化股份有限公司 | Weeding composition having synergistic effect |
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