CN104365604A - Herbicidal composition as well as preparation and application thereof - Google Patents
Herbicidal composition as well as preparation and application thereof Download PDFInfo
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- CN104365604A CN104365604A CN201410582239.4A CN201410582239A CN104365604A CN 104365604 A CN104365604 A CN 104365604A CN 201410582239 A CN201410582239 A CN 201410582239A CN 104365604 A CN104365604 A CN 104365604A
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- haloxyfop
- picloram
- methyl
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- agent
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Abstract
The invention relates to the technical field of pesticides and in particular relates to a herbicidal composition as well as a preparation and application thereof. The herbicidal composition comprises picloram and haloxyfop-P. The herbicidal composition has the beneficial effects that the ratio of picloram to haloxyfop-P is (1 to 30)-(30 to 1), and the co-toxicity coefficient is more than 120, so that the herbicidal composition has synergistic effects; field experiment results show that the comprehensive control effect of the herbicidal composition of picloram and haloxyfop-P on annual weeds is over 96% 30 days after the herbicidal composition is applied and is obviously better than the control effects of single picloram and single haloxyfop-P, thereby indicating that the herbicide has synergistic control effects, can conduce to reducing the dose and the cost and is environment-friendly.
Description
Technical field
The present invention relates to technical field of pesticide, particularly a kind of Herbicidal combinations, preparation and application thereof.
Background technology
Rape is one of main crops of China.But the yield effect of the weeds in Rapeseed Field to rape is huge, causes greater loss to vegetable grower.The weeds of Rapeseed Field are generally divided into grassy weed (monocotyledon weed) and broad leaved weed (broadleaf weed).Grassy weed mainly contain amur foxtail (wheat goddess, buy Tuo Tuo, wooden club grass, Huang Huangcao), fescue (needle spikesedge herb), annual bluegrass (slightly the root and stem of certain plants, chicken grass, cold grass), caput grass etc.Broad leaved weed mainly contains ox chickweed (goose intestines, goose field grass, chicken print grass), strain seedling seedling (drawing rattan, spider, glutinous grass), mustard of cracking rice, Descurainia sophia (rice rice wormwood artemisia), tongue of sparrow grass, Mazus japonicus, Veronica etc.
Amur foxtail, annual or more year sward this.Seminal propagation, the minimum temperature of seed sprouting is 5 DEG C, and optimal temperature is 15 ~ 20 DEG C, can not sprout higher than majority when 25 DEG C, and comparatively happiness is wet.Survive the winter with seedling or seed, seed dormancy is 3 ~ 4 months.Fertility is stronger.Son real with maturation with coming off, the floating overwater propagation diffusion of band bran grain husk.Mainly be distributed in the ground such as East China, ALFISOL IN CENTRAL and Yunnan, Sichuan, Shaanxi, Henan, Hebei.The crops such as main harm rice stubble wheatland, rape, green manure, the wheatland of hypsography low-lying is injured seriously.Amur foxtail fertility is strong, easily causes heavier harm, and be the host of rice leafhopper, Erythroneura subrufa, small brown rice planthopper, rice thrips, hydrellia griseola, wheatland spider to wheat, rape.
Ox chickweed, the rice stubble summer ripe fields that national rice does area all has occurrence and harm, and especially occurs serious with low-lying field, is the malignant weed of Chinese summer ripe fields.Be the major area of its occurrence and harm with the Yangtze river basin, there is the report of heavier harm the northern territory in south China and southwest, and in addition, also there is the report of generation in North, Northeast China area, but harm is all not serious.The main feature of its harm is plant growth early stage, strives water, fertilizer, strive space and sunlight with crop; In the plant growth later stage, overgrow rapidly, and hinder the harvesting of crop, especially mechanical harvesting.
Needle spikesedge herb, perennial humidogene draft.5 ~ October of flowering fruit bearing stage.Subterranean stem is flourishing, and breeding rapidly, also can seminal propagation.For paddy field malignant weed, be also born in the wetlands such as limit, pond, flood land, canal bank, especially with the cold water rice seedling bed of Yangtze river basin low humidity and rice field of transplanting seedlings, if needle spikesedge herb cover degree is high, greatly can reduces water temperature, affect paddy growth, and absorption ability of nutrient is strong, prevents and kill off not easily, endangers larger.
In recent years, reasonable selection herbicide used in rape field has become the important technical links guaranteeing that rape is kept the safety in production.But because drug of choice is improper or operation technique is not in place, control efficiency is undesirable or cause the phenomenons such as poisoning to occur repeatedly.It is long mostly to there is residual periodicity in the weed killer herbicide that current Rapeseed Field uses, be unfavorable for crop rotation, and the crop such as paddy rice, wheat of rear stubble plantation can be affected, and the weed killer herbicide of some soil treatment is larger by the impact of soil moisture, when arid, drug effect is very poor, even invalid.Many better very poor to broad leaved weed to grassy weed control efficiency in the footpath leaf weed killer herbicide that current Rapeseed Field uses, therefore often while increasing formulation rate, have also been enlarged cost accounting.
At present, the single dose agricultural chemicals that adopts is prevented and treated rape field weed more, is used alone rape field weed and easily produces resistance, and control of weeds weak effect.Therefore, the good Herbicidal combinations of a kind of control efficiency and herbicidal formulations is provided to have realistic meaning.
Summary of the invention
In view of this, the invention provides a kind of Herbicidal combinations, preparation and application thereof.This Herbicidal combinations herbicidal effect is obviously better than each single dose effect, and reduces dosage, can expand simultaneously herbicide general, improve herbicidal effect, reduce residual activity, reduce to chemical injury of crops, delay herbicide resistance generation and reduce environmental pollution.
In order to realize foregoing invention object, the invention provides following technical scheme:
The invention provides a kind of Herbicidal combinations, comprise picloram and haloxyfop-r-methyl.
Picloram is a kind of picolinic acid class super-high-efficient weed killer herbicide, it can readily through leaf and root absorption and conduction, mainly act on metabolism of nucleic acid, and make chloroplast structure and other organelle developmental deformities, interferencing protein synthesizes, act on meristematic tissue activity etc., finally cause Plant death.Effectively can prevent and kill off most broad leaved weed and part grassy weed, very safe to crop in cruciferae, be herbicide used in rape field ideal at present.
Haloxyfop-r-methyl is a kind of selective herbicide, prevents and kill off various grassy weed for various broad leaf crop Tanaka, especially has remarkable preventive effect, to broad leaf crop high safety to perennial obstinate grassy weeds such as reed, cogongrass, Bermuda grass.Can be absorbed by the blade of grassy weed very soon after dispenser, and conduct to whole plant, suppress the growth of plant meristematic tissue, thus kill weeds.Lasting period is long, after emerging, all have good preventive effect to the annual of initial stage of tillering, ear and perennial grassy weed, moreover, still can show excellent herbicidal effect under low temperature and drought condition.
In some embodiments of the invention, the mass ratio of described picloram and haloxyfop-r-methyl is 1:30 ~ 30:1.
In some embodiments of the invention, the mass ratio of described picloram and haloxyfop-r-methyl is 1:15 ~ 15:1.
As preferably, the mass ratio of described picloram and haloxyfop-r-methyl is 30:1,15:1,1:1,1:15 or 1:30.
Present invention also offers the application of above-mentioned Herbicidal combinations in control rape field weed.
In some embodiments of the invention, described rape field weed is broad leaved weed and/or grassy weed.
In some embodiments of the invention, described rape field weed is amur foxtail, ox chickweed or needle spikesedge herb.
Present invention also offers a kind of herbicidal formulations, comprise acceptable auxiliary agent and/or filler in above-mentioned Herbicidal combinations and agricultural chemicals.
In some embodiments of the invention, the mass percentage of described Herbicidal combinations is 16 ~ 62%.
As preferably, the mass percentage of described Herbicidal combinations is 16%, 20%, 31%, 32% or 62%.
Described Herbicidal combinations, according to method known in those skilled in the art, adds corresponding auxiliary agent and filler, can make missible oil, oil-suspending agent, aqueous suspension agent, wettable powder, dry suspending agent, water dispersible granules, aqua, microemulsion or aqueous emulsion.The present invention is not construed as limiting formulation at this, and the formulation of the insecticidal preparation that acceptable auxiliary agent or filler and above-mentioned Pesticidal combination are prepared in any agricultural chemicals, all in protection scope of the present invention.
In some embodiments of the invention, described auxiliary agent is one or more in wetting agent, stabilizing agent, dispersant, emulsifier, thickener, disintegrant, defoamer, antifreezing agent.
In some embodiments of the invention, dispersant is selected from: one or more in sodium lignin sulfonate, naphthalenesulfonic acid-formaldehyde condensate, formaldehyde condensation products sulphate, polycarboxylate, alkylphenol-polyethenoxy base phosphate, alkylphenol polyoxyethylene, polyoxyethylene carboxylate.
In some embodiments of the invention, wetting agent is selected from: one or more in lauryl sodium sulfate, Nekal BX, spaonin powder, neopelex, silkworm excrement, soapberry powder, the withered powder of tea.
In some embodiments of the invention, disintegrant is selected from: one or more in bentonite, ammonium sulfate, aluminium chloride, urea, magnesium chloride, glucose.
In some embodiments of the invention, defoamer is selected from: organic silicone oil, ethanol, epoxidized soybean oil, silicone compound, C
10-C
20saturated fat acid compounds, C
8-C
210one or more in aliphatic alcohols compound.
In some embodiments of the invention, antifreezing agent is selected from: one or more in ethylene glycol, propane diols, glycerine, sorbierite, urea, polyethylene glycol.
In some embodiments of the invention, thickener is selected from: one or more in gelatin, xanthans, polyethylene glycol, polyvinyl alcohol.
In some embodiments of the invention, stabilizing agent is selected from: one or more in phosphoric acid, pyrophosphoric acid, phthalic acid, malic acid, benzoic acid, butoxy glycerine ether, citric acid, urea or polypropylene glycol (PPG).In Pesticide Science, acceptable stabilizing agent is all in protection scope of the present invention, and the present invention is in this no limit.
In some embodiments of the invention, emulsifier is selected from: one or more in alkylsulfonate, fatty alcohol sulfonate, fatty alcohol-polyoxyethylene ether, polyoxyethylene nonylphenol ether, sorbitan fatty acid ester, calcium dodecyl benzene sulfonate, phenethyl phenol and ethylene oxide adduct, castor oil polyoxyethylene ether, tallow amine APEO or alkylphenol polyoxyethylene formaldehyde condensation products.In Pesticide Science, acceptable emulsifier is all in protection scope of the present invention, and the present invention is in this no limit.
In some embodiments of the invention, filler is selected from: one or more in kaolin, diatomite, bentonite, attapulgite, white carbon, precipitated calcium carbonate.
The invention provides a kind of Herbicidal combinations, this Herbicidal combinations comprises picloram and haloxyfop-r-methyl.Picloram and haloxyfop-r-methyl proportioning are between 1:30-30:1, and co-toxicity coefficient is greater than 120, has synergistic effect.As can be seen from field experiment result, dispenser is after 30 days, picloram of the present invention and haloxyfop-r-methyl Herbicidal combinations control annual weed integrated control effect are more than 96%, significantly better than picloram and haloxyfop-r-methyl single dose preventive effect, show that described weed killer herbicide control efficiency has synergistic effect, dose can be reduced, reduce cost, environmentally friendly.
Embodiment
The invention discloses a kind of Herbicidal combinations, preparation and application thereof, those skilled in the art can use for reference present disclosure, and suitable improving technique parameter realizes.Special needs to be pointed out is, all similar replacements and change apparent to those skilled in the art, they are all deemed to be included in the present invention.Method of the present invention and application are described by preferred embodiment, related personnel obviously can not depart from content of the present invention, spirit and scope methods and applications as herein described are changed or suitably change with combination, realize and apply the technology of the present invention.
In Herbicidal combinations provided by the invention, preparation and application thereof, former medicine used, auxiliary agent and filler all can be buied by market.
Below in conjunction with embodiment, set forth the present invention further:
The composite test of embodiment 1
For understanding picloram and the composite synergy to weeds of haloxyfop-r-methyl further, the present inventor is to picloram and haloxyfop-r-methyl is composite has carried out formulation screening test.
Test method: arrange different ratio according to mixture object, each proportioning arranges 5 ~ 7 concentration gradients, amur foxtail and ox chickweed is cultured to for 5 ~ 6 leaf phases for subsequent use.After the weeds cauline leaf process of the number of finishing, calculate preventive effect, then calculate inhibition concentration EC by method of least squares
50(95% confidence interval), then calculate co-toxicity coefficient (CTC) by the abundant method of Sun Yun.
Co-toxicity coefficient (CTC) >=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80< co-toxicity coefficient (CTC) <120 shows as summation action.
Actual measurement toxicity index (ATI)=(standard agent EC
50/ reagent agent EC
50) × 100
Theoretical toxicity index (the TTI)=percentage composition of A (in the toxicity index × mixture of the A)+percentage composition of B (in the toxicity index × mixture of B)
Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] × 100
Table 1 different ratio picloram and haloxyfop-r-methyl measure the synergy of amur foxtail
Table 2 different ratio picloram and haloxyfop-r-methyl measure the synergy of ox chickweed
Measurement result shows, picloram and haloxyfop-r-methyl proportioning are between 1:30-30:1, and co-toxicity coefficient is greater than 120, has synergistic effect, and as can be seen from table 1, table 2, picloram and haloxyfop-r-methyl optimum ratio are 1:1.
The preparation of embodiment 2 herbicidal formulations
62% picloram haloxyfop-r-methyl wetting powder
Picloram: 60%
Haloxyfop-r-methyl: 2%
Pull open powder: 5%
Methylcellulose: 6%
NNO：10％
Talcum powder: 3%
Kaolin: supply 100%
Compound method: mix entering in blender after above-mentioned each material in proportion coarse crushing, more namely obtain 62% picloram haloxyfop-r-methyl wetting powder after air-flow crushing.
The preparation of embodiment 3 herbicidal formulations
16% picloram haloxyfop-r-methyl oil-suspending agent
Picloram: 15%
Haloxyfop-r-methyl: 1%
White carbon: 1%
Organobentonite: 1.5%
Calcium dodecyl benzene sulfonate: 6%
Castor oil-base oxygen ethene: 9%
Methyl oleate: supply 100%
Namely compound method: mixed in proportion by above-mentioned raw materials and carry out precomminution, through 3 series connection sand mill sand millings, then obtain 16% picloram haloxyfop-r-methyl oil-suspending agent through high shear mixing.
The preparation of embodiment 4 herbicidal formulations
20% picloram haloxyfop-r-methyl missible oil
Picloram: 10%
Haloxyfop-r-methyl: 10%
Calcium dodecyl benzene sulfonate: 5%
Castor oil-base oxygen ethene: 7%
Dimethylbenzene: supply 100%
Compound method: mixed in proportion by above-mentioned raw materials, namely obtains 20% picloram haloxyfop-r-methyl missible oil after abundant stirring and dissolving.
The preparation of embodiment 5 herbicidal formulations
32% picloram effective haloxyfop water dispersible granule
Picloram: 2%
Haloxyfop-r-methyl: 30%
Lauryl sodium sulfate: 5%
Polycarboxylate: 5%
Polyethylene glycol: 4%
Sodium chloride: 2%
Kaolin: supply 100%
Compound method: above-mentioned each material is prepared 32% picloram effective haloxyfop water dispersible granule through dry pulverization process, granulation, drying, screening in proportion.
The preparation of embodiment 6 herbicidal formulations
31% picloram haloxyfop-r-methyl suspending agent
Picloram: 1%
Haloxyfop-r-methyl: 30%
Agriculture breast 1601#:15%
Wetting agent LS:5%
Dispersant SOPA-270:4%
Organobentonite: 2%
Xanthans: 0.22%
Ethylene glycol: 5%
Kathon CG: 0.5%
Deionized water: supply 100%
Namely compound method: mixed in proportion by above-mentioned raw materials and carry out precomminution, through 3 series connection sand mill sand millings, then obtain 31% picloram haloxyfop-r-methyl suspending agent through high shear mixing.
Embodiment 7 field efficacy
Except the field control effectiveness test of Rapeseed Field annual weed.
Reagent agent and dispenser dosage:
1,62% picloram haloxyfop-r-methyl wetting powder (10% picloram: 20% haloxyfop-r-methyl), 5g effective content/667m
2(1#);
2,16% picloram haloxyfop-r-methyl oil-suspending agent (20% picloram: 10% haloxyfop-r-methyl), 5g effective content/667m
2(2#);
3,20% picloram haloxyfop-r-methyl missible oil (10% picloram: 10% haloxyfop-r-methyl), 5g effective content/667m
2(3#);
4,32% picloram effective haloxyfop water dispersible granule (5% picloram: 25% haloxyfop-r-methyl), 5g effective content/667m
2(4#);
5,31% picloram haloxyfop-r-methyl suspending agent (25% picloram: 5% haloxyfop-r-methyl), 5g effective content/667m
2(5#);
Contrast dosage and formulation rate:
6,30% picloram suspending agent, 5g effective content/667m
2(6#);
7,15% haloxyfop-r-methyl missible oil, 5g effective content/667m
2(7#);
8, artificial weeding, (8#);
Spraying time: on November 20th, 2013, rape is transplanted latter 20 days, the leaf phase dispenser of rape transplant field weeds 5 ~ 6.
Test site: end of the bridge market town, Feidong County, Hefei City, Anhui Province
Result of the test: in table 3.
Table 3 control of weeds is tested
As can be seen from experimental result, dispenser is after 30 days, picloram of the present invention and haloxyfop-r-methyl Herbicidal combinations control annual weed integrated control effect are more than 96%, significantly better than picloram and haloxyfop-r-methyl single dose preventive effect, show that described weed killer herbicide control efficiency has synergistic effect, dose can be reduced, reduce cost, environmentally friendly.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a Herbicidal combinations, is characterized in that, comprises picloram and haloxyfop-r-methyl.
2. Herbicidal combinations according to claim 1, is characterized in that, the mass ratio of described picloram and haloxyfop-r-methyl is 1:30 ~ 30:1.
3. Herbicidal combinations according to claim 1, is characterized in that, the mass ratio of described picloram and haloxyfop-r-methyl is 1:15 ~ 15:1.
4. the application of the Herbicidal combinations according to any one of claims 1 to 3 in control rape field weed.
5. application according to claim 4, is characterized in that, described rape field weed is broad leaved weed and/or grassy weed.
6. application according to claim 4, is characterized in that, described rape field weed is amur foxtail, ox chickweed or needle spikesedge herb.
7. a herbicidal formulations, is characterized in that, comprises acceptable auxiliary agent and/or filler in Herbicidal combinations as described in any one of claims 1 to 3 and agricultural chemicals.
8. herbicidal formulations according to claim 7, is characterized in that, the mass percentage of described Herbicidal combinations is 16 ~ 62%.
9. herbicidal formulations according to claim 7, is characterized in that, its formulation is missible oil, oil-suspending agent, aqueous suspension agent, wettable powder, dry suspending agent, water dispersible granules, aqua, microemulsion or aqueous emulsion.
10. herbicidal formulations according to claim 7, is characterized in that, described auxiliary agent is one or more in wetting agent, stabilizing agent, dispersant, emulsifier, thickener, disintegrant, defoamer, antifreezing agent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410582239.4A CN104365604A (en) | 2014-10-27 | 2014-10-27 | Herbicidal composition as well as preparation and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410582239.4A CN104365604A (en) | 2014-10-27 | 2014-10-27 | Herbicidal composition as well as preparation and application thereof |
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| Publication Number | Publication Date |
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| CN104365604A true CN104365604A (en) | 2015-02-25 |
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ID=52544999
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|---|---|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107114400A (en) * | 2017-06-29 | 2017-09-01 | 广西壮族自治区化工研究院 | A kind of herbicidal composition |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4119632A (en) * | 1977-03-02 | 1978-10-10 | The Dow Chemical Company | Method of promoting the crystallization of picloram |
| CN1711840A (en) * | 2004-06-23 | 2005-12-28 | 北京颖新泰康科技有限公司 | Weeding composition, its application and method |
| WO2014116919A1 (en) * | 2013-01-25 | 2014-07-31 | Dow Agrosciences Llc | Herbicidal compositions comprising 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl) pyridine-2-carboxylic acid |
-
2014
- 2014-10-27 CN CN201410582239.4A patent/CN104365604A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4119632A (en) * | 1977-03-02 | 1978-10-10 | The Dow Chemical Company | Method of promoting the crystallization of picloram |
| CN1711840A (en) * | 2004-06-23 | 2005-12-28 | 北京颖新泰康科技有限公司 | Weeding composition, its application and method |
| WO2014116919A1 (en) * | 2013-01-25 | 2014-07-31 | Dow Agrosciences Llc | Herbicidal compositions comprising 4-amino-3-chloro-6-(4-chloro-2-fluoro-3-methoxyphenyl) pyridine-2-carboxylic acid |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107114400A (en) * | 2017-06-29 | 2017-09-01 | 广西壮族自治区化工研究院 | A kind of herbicidal composition |
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