CN102613180B - Weeding composition - Google Patents
Weeding composition Download PDFInfo
- Publication number
- CN102613180B CN102613180B CN 201210045461 CN201210045461A CN102613180B CN 102613180 B CN102613180 B CN 102613180B CN 201210045461 CN201210045461 CN 201210045461 CN 201210045461 A CN201210045461 A CN 201210045461A CN 102613180 B CN102613180 B CN 102613180B
- Authority
- CN
- China
- Prior art keywords
- ioxynil
- composition
- brominal
- active ingredient
- ethyl ester
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000203 mixture Substances 0.000 title claims abstract description 53
- 238000009333 weeding Methods 0.000 title abstract description 8
- 241000196324 Embryophyta Species 0.000 claims abstract description 28
- DQKWXTIYGWPGOO-UHFFFAOYSA-N (2,6-dibromo-4-cyanophenyl) octanoate Chemical compound CCCCCCCC(=O)OC1=C(Br)C=C(C#N)C=C1Br DQKWXTIYGWPGOO-UHFFFAOYSA-N 0.000 claims description 19
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- 238000002360 preparation method Methods 0.000 abstract description 5
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- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 230000001018 virulence Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Abstract
The invention provides a weeding composition, which comprises an active ingredient A and an active ingredient B. The active ingredient A is a composition represented by a formula (1), the active ingredient B is ethoxyfen-ethyl, and the weight ratio of the active ingredient A to the active ingredient B is 0.02-50. The invention further provides a preparation method and application of the composition. Test results show that the weeding composition is obvious in synergia, and even more important is that the application amount is decreased greatly and the using cost is reduced. The weeding composition can effectively prevent and control some specific broad-leaf weeds. Herbicides with different action mechanisms and action modes are compounded so that application amounts of single doses are effectively reduced and the weeding composition has good effects of enlarging weeding spectrum, delaying weed resistance, improving prevention and control efficiency and the like. The R represents H, -CO-C(2-15) alkyl, Na or K, and the X is Br or I.
Description
Technical field
The invention belongs to the agriculture plant protection field, particularly relate to a kind of Herbicidal combinations that improves performance that has, specifically relate to a kind of bactericidal composition that comprises.
Background technology
Active component formula 1 is a kind of benzonitrile class weed killer herbicide.Its mechanism of action mainly is the inhibitor of oxidative phosphorylation uncoupler in the respiration process and photophosphorylation reaction, ATP is produced be obstructed.This type of weed killer herbicide has good control efficiency to preventing and kill off broad leaved weed.
Ethoxyfenethyl ethyl ester (ethoxyfen-ethyl) belongs to diphenyl ether herbicide.Be mainly used in the seedling rear defence except the broad leaved weed in the crop fields such as soybean, wheat, barley, peanut, pea, as more than ten kind of weeds such as piemarker, redroot amaranth, clearvers, Siberian cockleburs, using dosage is 10～30g (a.i.)/ha.
Actual agricultural chemicals experience shows, repeats that order is single-minded to be used a kind of reactive compound and come controlling weeds will cause the fast selective of weeds under many circumstances, uses the mixture of different activities compound to prevent and treat injurious weed at present usually.Make up by the reactive compound that will have the different mechanisms of action, but delaying drug resistance produces reduction amount of application, minimizing control cost.
Summary of the invention
The technical problem to be solved in the present invention is: at weed killer herbicide resistance and pedo relict problem in actual applications, the weed killer herbicide that filters out two kinds of different weeding principles carries out composite, and to improve the weed killer herbicide control efficiency, delaying drug resistance produces, reduce amount of application, reduce the control cost.
For solving the problems of the technologies described above, the invention provides a kind of bactericidal composition, said composition comprises effective constituents A and B, and active component A is the compound of formula (1), and active component B is the ethoxyfenethyl ethyl ester.The inventor finds that by test above-mentioned Herbicidal combinations synergy is obvious, the more important thing is that amount of application reduces, and reduces use cost.It is different with the compound structure type of B component to contain component A, and mechanism of action is different, and both are composite can to enlarge herbicidal spectrum, and can delay generation and the development speed of weeds resistance to a certain extent, and does not have cross resistance between component A and the B component.
In above-mentioned formula (1) structural formula, when R is H ,-CO-C
(2-15)Alkyl, Na or K; X is Br or I.Further, the compound of above-mentioned formula (1) is preferably Brominal, Brominal potassium, Brominal sodium, ioxynil, ioxynil potassium, ioxynil sodium, bromoxynil octanoate and ioxynil octanoate.
Another object of the present invention provides the preparation method that comprises two kinds of effective constituents A and B Herbicidal combinations and in the application of agriculture field controlling weeds.
In the said herbicidal composition, the weight ratio between weight two components of component A and B component is 0.02～50.According to the physicochemical property between the component and practical application, the preferred weight ratio of active component (A) and active component ethoxyfenethyl ethyl ester (B) is 0.03～35, more preferably 0.05～20.
Herbicidal combinations of the present invention is made up of the active component of 5～90% weight portions and the insecticides adjuvant of 95～10% weight portions.
The invention provides the purposes of Herbicidal combinations in the control agricultural weed of being formed by component A and B component, as component A and ethoxyfenethyl ethyl ester the wheat paddock broad leaved weed is had very high preventive effect.
Above-mentioned composition also comprises carrier, auxiliary agent and/or surfactant, is prepared into aqueous emulsion, suspending agent, water dispersible granules and wetting powder etc.
Proper auxiliary agent can be solid or liquid, and they are material commonly used in the formulation process normally, mineral matter natural or regeneration for example, solvent, dispersant, wetting agent, adhesive, thickener, adhesive or fertilizer.
The application process of the present composition comprises the acrial part, particularly leaf portion or blade face that composition of the present invention is used for the plant growth.The frequency of using and amount of application depend on biology and the weather life condition of pathogene.Can be with the growth place of plant, as the rice field, soak with the liquid preparation of composition, perhaps composition is applied in the soil with solid form, as with particle form (soil application), composition can be by soil (systemic action) in plant root enters plant corpus.
These compositions can only comprise active component and use, also can be mixed together use with additive, therefore composition of the present invention can be prepared into various formulations, for example wetting powder, suspending agent, oil-suspending agent, water dispersible granules, aqueous emulsion, microemulsion.According to the character of these compositions and use purpose and the ambient conditions that composition will reach, can select with composition with spraying, atomizing, dust, broadcast sowing or sprinkle the method for watering etc. and so on and use.
Available known method can become various formulations with preparation of compositions of the present invention, active ingredient and auxiliary agent as solvent, solid carrier, can evenly can be mixed, grind when needing with surfactant, is prepared into needed formulation.
Above-mentioned solvent can be selected from aromatic hydrocarbon, preferably contains 8-12 carbon atom, as the benzene of xylene mixture or replacement, phthalate, sad as Dibutyl phthalate or phthalandione two, fat hydrocarbon, as cyclohexane or paraffin, pure and mild ethylene glycol and their ether and ester, as ethanol, ethylene glycol, glycol monomethyl methyl; Ketone, as cyclohexanone, the solvent of strong polarity, as N-methyl 2-Pyrrolidone, dimethyl sulfoxide (DMSO) or dimethyl formamide and vegetable oil or vegetable oil are as soybean oil.
Above-mentioned solid carrier, but as being used for the normally natural minerals filler of pulvis and dispersant, for example talcum, kaolin, montmorillonite or atlapulgite.In order to manage the physical property of composition, also can add polymolecularity silicic acid or polymolecularity adsorpting polymerization thing carrier, for example granular absorption carrier or non-absorption carrier, suitable granular absorption carrier is porous type, as float stone, bentonite or bentonite; Suitable non-absorption carrier such as calcite or sand.In addition, can use the granular material of being prefabricated into of a large amount of inorganic in nature or organic character as carrier, particularly dolomite.
Chemical property according to the active ingredient in the composition of the present invention, suitable surfactant is lignin sulfonic acid, naphthalene sulfonic acids, phenolsulfonic acid, alkali salt or amine salt, alkylaryl sulfonates, alkyl sulfate, alkylsulfonate, aliphatic alcohol sulfate, fatty acid and sulphated fatty alcohol glycol ether also have the condensation product of sulfonated naphthalene and naphthalene derivatives and formaldehyde, the condensation product of naphthalene or naphthalene sulfonic acids and phenol and formaldehyde, NONIN HS 240, the ethoxylation isooctylphenol, octyl phenol, nonyl phenol, alkylaryl polyglycol ether, tributyl benzene polyglycol ether, three stearyl phenyl polyglycol ethers, alkyl aryl polyether alcohol, ethoxylated castor oil, polyoxyethylene alkyl ether, the ethylene oxide condensation product, the ethoxylation polyoxypropylene, lauric acid polyglycol ether acetal, sorbitol ester, lignin sulfite waste liquor and methylcellulose.
Two kinds of active ingredients show as synergistic effect in the composition of the present invention, and the specific activity of said composition is used the activity expection summation of individualized compound, and the independent activity of individualized compound is more remarkable.Synergistic effect shows as and allows that amount of application reduces, wideer weeding control spectrum, instant effect, more lasting control efficiency, by only once or minority use better control weeds several times and widened the possible administration interval time.These characteristics are prevented and kill off special needs in the control weeds practice process.
Other characteristics that show of Herbicidal combinations of the present invention mainly show as: 1, because two single thinner architectural differences of this composition are very big, the mechanism of action is different fully, there is not cross resistance, can delays two single agent and use the resistance problem that produces separately; 2, composition of the present invention is good to crop safety, preventive effect.Through evidence, herbicidal composition chemical property of the present invention is stable, and synergy is remarkable, and controlling object is shown tangible synergy and complementation.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention, all any modifications of making within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Percentage all is weight percentage in all prescriptions of following examples.The processing technology of the various preparations of the present composition is prior art, can change to some extent according to different situations.
One, formulation prepares embodiment
(1) processing of aqueous emulsion and embodiment
Active components A (preferred Brominal, ioxynil, bromoxynil octanoate and ioxynil octanoate) is mixed under mechanical agitation with ethoxyfenethyl ethyl ester, solvent, auxiliary agent, drop into emulsifier then and stabilizing agent stirs, add water at last, under 100-12000 rev/min rotating speed, stirred 10-30 minute, make it to become the product of even emulsus.
Embodiment 1:25% bromoxynil octanoate ethoxyfenethyl ethyl ester aqueous emulsion
Bromoxynil octanoate 5%, ethoxyfenethyl ethyl ester 20%, polyoxyethylene block copolymer 4%, propane diols 2%, xanthans 3%, poly-isosuccinic acid acid anhydride-ethylene glycol copolymer 4%, silicone defoaming agent 2%, water complements to 100%.
In above-described embodiment 1, also available Brominal, ioxynil and ioxynil octanoate substitute bromoxynil octanoate and prepare this embodiment.
Embodiment 2:28% ioxynil octanoate ethoxyfenethyl ethyl ester aqueous emulsion
Ioxynil octanoate 25%, ethoxyfenethyl ethyl ester 3%, N-dodecyl pyrrolidone 3%, castor oil polyoxyethylene ether 2%, glycerine 2%, polyvinyl alcohol 3%, Sodium Benzoate 3%, isooctanol 2%, water complements to 100%.
In above-described embodiment 2, also available Brominal, ioxynil and bromoxynil octanoate substitute ioxynil octanoate and prepare this embodiment.
(2) processing of suspending agent and embodiment
Active components A (preferred Brominal, ioxynil, bromoxynil octanoate and ioxynil octanoate) is mixed with the ratio of each component such as ethoxyfenethyl ethyl ester, dispersant, wetting agent, thickener and water in prescription, after sand milling and/or high speed shear, obtain semi-finished product, add water after the analysis and mix to filter and get product.
Embodiment 3:12% ioxynil octanoate ethoxyfenethyl ethyl ester suspending agent
Ioxynil octanoate 7%, ethoxyfenethyl ethyl ester 5%, sodium lignin sulfonate 8%, white carbon 2%, ethylene glycol 5%, xanthans 2%, water complements to 100%.
In above-described embodiment 3, also available Brominal, ioxynil and bromoxynil octanoate substitute ioxynil octanoate and prepare this embodiment.
Embodiment 4:18% bromoxynil octanoate ethoxyfenethyl ethyl ester suspending agent
Bromoxynil octanoate 3%, ethoxyfenethyl ethyl ester 15%, white carbon 2%, aliphatic alcohol polyoxyvinethene phosphate 6%, Sodium Benzoate 3%, glycerine 7%, water complements to 100%.
In above-described embodiment 4, also available Brominal, ioxynil and ioxynil octanoate substitute bromoxynil octanoate and prepare this embodiment.
(3) processing of water dispersible granules and embodiment
Active components A (preferred Brominal, Brominal potassium, Brominal sodium, ioxynil, ioxynil potassium, ioxynil sodium, bromoxynil octanoate and ioxynil octanoate) is mixed with ethoxyfenethyl ethyl ester, auxiliary agent and the filler ratio in prescription, be ground into wetting powder through air-flow, add a certain amount of water mixing extruder grain again, make the water dispersible granules product after the drying screening.
Embodiment 5:75% ioxynil sodium salt ethoxyfenethyl ethyl ester water dispersible granules
Ioxynil sodium salt 5%, ethoxyfenethyl ethyl ester 70%, sodium alginate 4%, methyl naphthalene sulfonate formaldehyde condensate 2%, ammonium sulfate 2%, organic silicone 2%, bentonite complements to 100%.
In above-described embodiment 5, also available Brominal, Brominal potassium, Brominal sodium, ioxynil, ioxynil potassium, bromoxynil octanoate and ioxynil octanoate substitute ioxynil sylvite and prepare this embodiment.
Embodiment 6:80% Brominal sodium salt ethoxyfenethyl ethyl ester water dispersible granules
Brominal sodium salt 70%, ethoxyfenethyl ethyl ester 10%, sodium lignin sulfonate 4%, sodium carboxymethyl starch 1%, dodecyl sodium sulfate 2%, xanthans 4%, attapulgite complements to 100%.
In above-described embodiment 6, also available Brominal, Brominal potassium, ioxynil, ioxynil potassium, ioxynil sodium, bromoxynil octanoate and ioxynil octanoate substitute the Brominal sodium salt and prepare this embodiment.
(4) processing of wetting powder and embodiment
Active components A (preferred Brominal, Brominal potassium, Brominal sodium, ioxynil, ioxynil potassium, ioxynil sodium, bromoxynil octanoate and ioxynil octanoate) is fully mixed in proportion with ethoxyfenethyl ethyl ester, various auxiliary agent and filler etc., after ultrafine crusher is pulverized, make wetting powder.
Embodiment 7:85% ioxynil sodium salt ethoxyfenethyl ethyl ester wetting powder
Ioxynil sodium salt 78%, ethoxyfenethyl ethyl ester 7%, calcium lignosulfonate 6%, bentonite 3%, NONIN HS 240 4%, attapulgite complements to 100%.
In above-described embodiment 7, also available Brominal, Brominal potassium, Brominal sodium, ioxynil, ioxynil potassium, bromoxynil octanoate and ioxynil octanoate substitute the ioxynil sodium salt and prepare this embodiment.
Embodiment 8:50% Brominal sodium salt ethoxyfenethyl ethyl ester wetting powder
Brominal sodium salt 24%, ethoxyfenethyl ethyl ester 26%, calcium lignosulfonate 4%, white carbon 8%, neopelex 3%, attapulgite complements to 100%.
In above-described embodiment 8, also available Brominal, Brominal potassium, ioxynil, ioxynil potassium, ioxynil sodium, bromoxynil octanoate and ioxynil octanoate substitute the Brominal sodium salt and prepare this embodiment.
Embodiment 9:55% Brominal sylvite ethoxyfenethyl ethyl ester wetting powder
Brominal sylvite 5%, ethoxyfenethyl ethyl ester 50%, NONIN HS 240 6%, sodium lignin sulfonate 7%, white carbon 15%, diatomite complements to 100%.
In above-described embodiment 9, also available Brominal, Brominal sodium, ioxynil, ioxynil potassium, ioxynil sodium, bromoxynil octanoate and ioxynil octanoate substitute Brominal sylvite and prepare this embodiment.
Two, drug effect demonstration test
(1) biologicall test embodiment 1
1, the composite toxicity test test to wheat paddock weeds clearvers of Brominal sodium salt and ethoxyfenethyl ethyl ester
As the standard medicament, calculate disease index and control efficiency with the Brominal sodium salt.Control efficiency is converted into probability value (y), and liquor strength (μ g/ml) converts logarithm value (x) to, calculates concentration EC50 in virulence equation and the inhibition with method of least squares, calculates the toxicity index level co-toxicity coefficient (CTC) of medicament according to the abundant method of Sun Yun.Toxicity test the results are shown in Table 1.
Actual measurement toxicity index (ATI)=(standard medicament EC50/ reagent agent EC50) * 100
The percentage composition of B in percentage composition+B medicament toxicity index * mixture of A in theoretical toxicity index (TTI)=A medicament toxicity index * mixture
Co-toxicity coefficient (CTC)=[mixture actual measurement toxicity index (the ATI)/theoretical toxicity index (TTI) of mixture] * 100
CTC≤80, the composition performance is antagonism, 80＜CTC＜120, the composition performance is summation action, CTC 〉=120, the composition performance is synergistic effect.
The composite toxicity test to the weeds clearvers of the different proportionings with the ethoxyfenethyl ethyl ester of table 1. Brominal sodium salt
Result's (table 1) shows, Brominal sodium salt and ethoxyfenethyl ethyl ester are between proportioning 50: 1～1: 50 (being ratio 50～0.02), co-toxicity coefficient is all more than 120, illustrates that Brominal sodium salt and ethoxyfenethyl ethyl ester are composite preventing and kill off of clearvers had remarkable role in synergy.
In addition, other active components that formula (1) is included, for example Brominal, Brominal potassium, ioxynil, ioxynil potassium, ioxynil sodium, bromoxynil octanoate and ioxynil octanoate etc., the mechanism of action of these active components and Brominal sylvite, control spectrum etc. are identical, when carrying out Toxicity Determination with above-mentioned identical method, under the identical proportioning of above-mentioned table 1, these active components are the same with Brominal sylvite, show remarkable role in synergy equally.
2, the composite toxicity test test to weeds ox chickweed of ioxynil sylvite and ethoxyfenethyl ethyl ester
The composite toxicity test to weeds ox chickweed of table 2 ioxynil sylvite, ethoxyfenethyl ethyl ester and different proportioning thereof
Result's (table 2) shows, ioxynil sylvite and ethoxyfenethyl ethyl ester are between proportioning 50: 1～1: 50 (being ratio 50～0.02), co-toxicity coefficient is all more than 120, illustrates that ioxynil sylvite and ethoxyfenethyl ethyl ester are composite preventing and kill off of weeds ox chickweed had remarkable role in synergy.
In addition, other active components that formula (1) is included, for example Brominal, Brominal sodium, Brominal potassium, ioxynil, ioxynil sodium, ioxynil octanoate and bromoxynil octanoate etc., the mechanism of action of these active components and ioxynil octanoate, control spectrum etc. are identical, when carrying out Toxicity Determination with above-mentioned identical method, under the identical proportioning of above-mentioned table 1, these active components are the same with Brominal sylvite, show remarkable role in synergy equally.
(2) field control effectiveness test
1, the embodiment that utilizes the present invention to make verifies active component A and the composite field control effect to wheat weeds ox chickweed of active component B.
Test method: with weed seed seed soaking after show money or valuables one carries unintentionally, under 27-28 ℃, husky training, when treating height of seedling 5-6 centimetre, processings of spraying handled after 15 days, measured weeds overground part fresh weight, (fresh weight is 4 repetition mean values in the table) calculating weeds fresh weight inhibiting rate.
Expection preventive effect (%)=X+Y-XY/100 (wherein, X, Y are single agent preventive effect)
The composite field efficiency test result to clearvers of table 3. active component A and ethoxyfenethyl ethyl ester
Measurement result (table 3) shows that the preventive effect of active component A and ethoxyfenethyl ethyl ester management of weeds clearvers obviously improves, and illustrates that the two compositely has remarkable role in synergy to clearvers.
Claims (3)
1. herbicidal composition, it is characterized in that: described composition comprises active component A and B, and wherein active component A is bromoxynil octanoate, and active component B is the ethoxyfenethyl ethyl ester, and active component A and B account for the 5-90% of agricultural chemicals gross weight; Wherein weight ratio is 3:15 or 5:20 between active component A and B two components.
2. composition according to claim 1, it is characterized in that: described composition can be prepared into wetting powder, suspending agent, oil-suspending agent, water dispersible granules, aqueous emulsion, microemulsion.
3. claim 1 or 2 described compositions are in the application of preventing and kill off on the agricultural weed clearvers.
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| CN103749448B (en) * | 2013-12-25 | 2016-03-02 | 山东滨农科技有限公司 | Herbicidal composition containing clethodim and ethoxyfenethyl |
| CN110463710A (en) * | 2019-09-04 | 2019-11-19 | 史卫斌 | A kind of Herbicidal combinations for preventing and treating weeds of wheat |
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| 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 |
| CN1398514A (en) * | 2002-05-09 | 2003-02-26 | 河南省农业科学院植物保护研究所 | Fluoroglycofen-ethyl-bromoxynil octanoate herbicide |
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Patent Citations (2)
| 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 |
| CN1398514A (en) * | 2002-05-09 | 2003-02-26 | 河南省农业科学院植物保护研究所 | Fluoroglycofen-ethyl-bromoxynil octanoate herbicide |
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| Title |
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| 权利要求1-4、16、24. |
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