CN103250704B - Weeding composition and preparation thereof - Google Patents
Weeding composition and preparation thereof Download PDFInfo
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- CN103250704B CN103250704B CN201310207234.9A CN201310207234A CN103250704B CN 103250704 B CN103250704 B CN 103250704B CN 201310207234 A CN201310207234 A CN 201310207234A CN 103250704 B CN103250704 B CN 103250704B
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- flupoxam
- clethodim
- herbicidal combinations
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Abstract
The invention relates to the field of pesticide preparations, and discloses a weeding composition and a preparation thereof. The weeding composition comprises flupoxam and clethodim. According to the weeding composition and the preparation thereof, the flupoxam and the clethodim are compounded to be taken as effective components, and have complementary advantages and a synergistic effect so as to delay the generation of pesticide resistance of weeds; and meanwhile, the weeding composition has a synergistic effect to weeds in a soybean field, so that the pesticide consumption and the pesticide applying frequency are greatly reduced, has the advantages of safety, high efficiency, environmental friendliness and the like, and can be widely applied to the control on the weeds in the soybean field.
Description
Technical field
The present invention relates to pesticidal preparations field, relate to specifically a kind of Herbicidal combinations and preparation thereof.
Background technology
Soybean also claims soya bean, green soya bean, black soya bean, is the main oil crop of China, is again important non-staple food raw material, the existing history in 5000 of plantation in China.Soybean is the most being rich in nutrition in leguminous plant and is easy to the food of digestion, is rich in protein, is important food and feed resource.
Approximately 6,700,000 hectares of China's soybean acreages, weeds occur general, and of a great variety, these weeds have had a strong impact on output and the quality of soybean.There are the Northeast, Huang-Huai-Hai, area, the Yangtze river basin, South China in the main crop smothering district of causing harm.Due to the difference of geographical position, weather, soil and cropping system, soybean weeds kind, distribution, advantage and subdominule are also variant, and the degree of harm soybean is also different.The main weeds of Soybean Field has: annual gramineous weed is as barnyard grass, green foxtail, setaria glauca, lady's-grass, wild oat, eleusine indica etc.; Annual broadleaf weed has Siberian cocklebur, amaranth, black nightshade, acalypha copperleaf, elscholtiza, water sour jujube pin, wolf tail grass, willow leaf thorn knotweed, pale persicaria, salsola collina, lamb's-quarters, dodder, dayflower, kitchen garden, clearvers, chickweed, piemarker etc.; Perennial grass has meadow pine, corn sow thistle, setose thistle, field thistle, Bermuda grass, reed, the rhizome of nutgrass flatsedge etc.
Using chemical herbicide is the main method that solves soybean weeds, and conventional soybean field herbicide has imazethapyr, fomesafen, chlorimuronethyl, different grass pine, imazamox, Flumetsulam, piperazine humulone etc. at present.But the not high problem of these weed killer herbicide single dose ubiquity drug effects, and the long-term use separately of agricultural chemicals single dose easily makes weeds produce resistance.For this reason, need to develop a kind of novel weed killer herbicide for Soybean Field weeding, to improve drug effect and the generation of avoiding herbicide resistance.
Summary of the invention
In view of this, the object of the invention is to provide a kind of Herbicidal combinations and preparation thereof, Herbicidal combinations of the present invention can be applied in the control of Soybean Field grassy weed and broad leaved weed, particularly prevent and treat barnyard grass, black nightshade grass, field bindweed and corn sow thistle, and there is synergistic effect.
For realizing object of the present invention, the present invention adopts following technical scheme:
A Herbicidal combinations, is comprised of flupoxam and clethodim.
Flupoxam, English name flupoxam, structural formula is as follows:
Flupoxam belongs to triazolopyrimidine sulfonamides, is typical inhibitor of acetolactate synthetase.By suppressing the synthetic protein biosynthesis block that makes of branched-chain amino acid, plant stops growing.Lasting period length, broad weed-killing spectrum, soil, cauline leaf are processed and all can.The scope of application is suitable for the Tanakas such as corn, soybean, wheat, barley and prevents and treats annual and perennial broad leaved weed as knotweed, Veronica, Siberian cocklebur, black nightshade, Amaranthus retroflexus, lamb's-quarters, piemarker, clearvers, datura etc.Children grassy weed in age is also had to certain inhibitory action.
Clethodim, English name clethodim, structural formula
Clethodim is a kind of novel dry land herbicide after seedling, has good selectivity.Be applicable to the grassy weeds such as the broad-leaved field Control Wild oats such as soybean, rape, cotton, peanut, lady's-grass, green foxtail, eleusine indica, annual bluegrass, hard grass.After dispenser, can by grassy weed cauline leaf, be absorbed rapidly and conduct to stem apex and meristematic tissue, suppress merismatic activity, destroy cell division, finally cause weeds dead.
As preferably, described flupoxam and clethodim weight ratio are 1:2-10, further preferred, and described flupoxam and clethodim weight ratio are 1:4-7, and most preferably, described flupoxam and clethodim weight ratio are 1:5.
Different herbicidal activity components are mixed rear each active component due to the difference of composition, structure, physicochemical property, make the synergy between each active component be typically expressed as synergistic effect, summation action or antagonism.So-called synergistic effect is exactly the mutual synergism between different material, and the effect of its generation is greater than the sum total of each composition effect; And the effect that summation action is exactly its generation equals the sum total of each composition effect; Antagonism refers to that when two kinds of materials act on living organism, a kind of material disturbs the effect of another kind of material, or the effect of interfering with an opponent each other, the phenomenon that general effect is declined.
The present invention is according to Sun Yunpei (Sun Y-P) method, calculates co-toxicity coefficient and evaluates flupoxam effect mixed with clethodim, and when result is presented at both weight ratios and is 1:2-10, co-toxicity coefficient is all greater than 120, shows that the mixing use of the two has notable synergistic effect.
Therefore, the invention provides the application of Herbicidal combinations of the present invention in preparation control soybean grassy weed and broadleaf weed herbicide.As preferably, described soybean grassy weed and broad leaved weed are barnyard grass, black nightshade grass, field bindweed and corn sow thistle.
Herbicidal combinations of the present invention can be made into multiple formulation of herbicide, can accept auxiliary material be comprised of percentage composition on the Herbicidal combinations of the present invention that is 1%-80% and pesticidal preparations.As preferably, described weed killer herbicide is microemulsion, missible oil or suspension emulsion.
Preferably, in microemulsion, the weight percentage of Herbicidal combinations is 1%-20%, more preferably.Described microemulsion by weight percentage, by 1%-20% Herbicidal combinations, 8%-30% emulsifier, 10%-15% solvent, 1%-10% cosolvent, excess water forms.
Preferably, in missible oil, the weight percentage of Herbicidal combinations is 5%-80%, more preferably, described missible oil by weight percentage, by 5%-80% Herbicidal combinations, 1%-20% emulsifier, balance solvent forms.
Preferably, in suspension emulsion, the weight percentage of Herbicidal combinations is 20%-70%, more preferably, described suspension emulsion by weight percentage, by 20%-70% Herbicidal combinations, 2%-6% wetting agent, 3%-8% dispersant, 0.1%-2% thickener, 0.1%-0.2% defoamer, excess water forms.
On pesticidal preparations of the present invention, can accept auxiliary material and can select the emulsifier of this area routine, solvent, dispersant, wetting agent etc., wherein, as preferably, described emulsifier is selected from one or more in agriculture breast 500, agriculture breast 600, Nongru-700, NP series, the newborn 0201B of agriculture, agriculture breast 0203B, 2201, castor oil polyoxyethylene ether, aliphatic acid polyethenoxy ether, polyoxyethylene aliphatic alcohol ether, ethoxy castor oil, PMA, fatty acid polyethylene glycol ester, trilaurin APEO.
As preferably, described solvent is selected from one or more in No. 200, aromatic solvent naphtha, tributyl phosphate, tetrahydrofurfuryl alcohol, oxolane, vegetable oil, paraffin oil, lubricating oil, No. 100, solvent naphtha, No. 150, solvent naphtha, No. 180, solvent naphtha, solvent naphtha.
As preferably, described cosolvent is selected from ethanol, isopropyl alcohol, n-butanol or n-amyl alcohol.
As preferably, described wetting agent is selected from lauryl sodium sulfate, dodecyl sodium sulfate, calcium dodecyl benzene sulfonate, pulls open powder, one or more in moistening penetrant t, Negel, fatty alcohol polyglycol ether sulphate, fat alcohol polyethylene ether, polyoxyethylene nonylphenol ether, sorbitan fatty acid ester APEO.
As preferably, described dispersant is selected from one or more in sodium lignin sulfonate, calcium lignosulfonate, Sodium Polyacrylate, NNO, NO, MF, SK-24, carboxymethyl cellulose, sodium phosphate trimer.
As preferably, described thickener is selected from xanthans, polyvinyl alcohol, sodium alginate, starch or organobentonite.
As preferably, described defoamer is selected from the fatty alcohol of organosilicon ketone, C8-10, the saturated fatty acid of C10-20 and ester class thereof etc.
As preferably, described filler is selected from kaolin, diatomite, precipitated calcium carbonate, attapulgite, white carbon.
Weed killer herbicide field control effectiveness test result of the present invention shows, singly using under the prerequisite of dose lower than two, has significantly improved preventive effect.As can be seen here, soybean field weeding composition provided by the invention and preparation thereof have greatly reduced dosage and medication number of times, have the advantages such as safety, efficient, environmental protection, and have delayed the generation of herbicide resistance.
From above technical scheme, Herbicidal combinations of the present invention and preparation thereof using flupoxam and clethodim composite as active ingredient, the two mutual supplement with each other's advantages, synergy, delay the generation of herbicide resistance, soybean weeds is had to synergistic effect simultaneously, greatly reduced dosage and medication number of times, there is the advantages such as safety, efficient, environmental protection, can be widely used in the control of soybean crop smothering.
Embodiment
The embodiment of the invention discloses a kind of Herbicidal combinations and preparation thereof.Those skilled in the art can use for reference content herein, suitably improve technological parameter and realize.Special needs to be pointed out is, all similar replacements and change apparent to those skilled in the artly, they are all deemed to be included in the present invention.
Product of the present invention and method are described by preferred embodiment, and related personnel obviously can change product as herein described or suitably change and combination within not departing from content of the present invention, spirit and scope, realizes and apply the technology of the present invention.
Below in conjunction with embodiment, further set forth the present invention.
Embodiment 1:1% flupoxam clethodim microemulsion
Flupoxam 0.5g, clethodim 0.5g, agriculture breast 0203B15g, No. 100 15g of solvent naphtha, ethanol 10g, water 59g, through abundant mixed dissolution, obtain 1% flupoxam clethodim microemulsion.
Embodiment 2:6% flupoxam clethodim microemulsion
Flupoxam 2g, clethodim 4g, ethoxy castor oil 20g, No. 180 10g of solvent naphtha, ethanol 5g, water 59g, through abundant mixed dissolution, obtain 6% flupoxam clethodim microemulsion.
Embodiment 3:12% flupoxam clethodim microemulsion
Flupoxam 3g, clethodim 9g, Nongru-700 15g, agricultural emulsifier NO．600 10g, oxolane 8g, n-butanol 8g, water 47g, through abundant mixed dissolution, obtain 12% flupoxam clethodim microemulsion.
Embodiment 4:18% flupoxam clethodim microemulsion
Flupoxam 2g, clethodim 16g, agriculture breast 220120g, No. 100 15g of solvent naphtha, ethanol 5g, water 42g, through abundant mixed dissolution, obtain 18% flupoxam clethodim microemulsion.
Embodiment 5:20% flupoxam clethodim microemulsion
Flupoxam 2g, clethodim 18g, peaceful breast No. 33 30g, epoxidized soybean oil 15g, n-amyl alcohol 5g, water 30g, through abundant mixed dissolution, obtain 20% flupoxam clethodim microemulsion.
Embodiment 6:5% flupoxam clethodim EC
Flupoxam 1g, clethodim 4g, 0203B20g, vegetable oil 75g, through abundant mixed dissolution, obtain 5% flupoxam clethodim EC.
Embodiment 7:25% flupoxam clethodim EC
Flupoxam 5g, clethodim 20g, agriculture breast No. 500 10g, agricultural emulsifier NO．600 10g, No. 180 55g of solvent naphtha, through abundant mixed dissolution, obtain 25% flupoxam clethodim EC.
Embodiment 8:40% flupoxam clethodim EC
Flupoxam 5g, clethodim 35g, agriculture breast 0201B15g, No. 150 45g of solvent naphtha, through abundant mixed dissolution, obtain 40% flupoxam clethodim EC.
Embodiment 9:60% flupoxam clethodim EC
Flupoxam 10g, clethodim 50g, agriculture breast 22015g, Nongru-700 15g, paraffin oil 20g, through abundant mixed dissolution, obtain 60% flupoxam clethodim EC.
Embodiment 10:80% flupoxam clethodim EC
Flupoxam 20g, clethodim 60g, agriculture breast 0203B15g, No. 100 39g of solvent naphtha, through abundant mixed dissolution, obtain 80% flupoxam clethodim EC.
Embodiment 11:20% flupoxam clethodim suspension emulsion
Flupoxam 5g, clethodim 15g, fat alcohol polyethylene ether 3g, sodium lignin sulfonate 5g, xanthans 1g, organosilicon 0.5g, water 70.5g, through abundant mixed dissolution, obtain 20% flupoxam clethodim EC.
Embodiment 12:33% flupoxam clethodim suspension emulsion
Flupoxam 3g, clethodim 30g, lauryl sodium sulfate 2g, MF5g, polyvinyl alcohol 0.5g, organosilicon 1g, water 58.5g, through abundant mixed dissolution, obtain 33% flupoxam clethodim EC.
Embodiment 13:45% flupoxam clethodim suspension emulsion
Flupoxam 5g, clethodim 40g, pull open powder 4g, carboxymethyl cellulose 8g, sodium alginate 2g, organosilicon 1g, water 40g, through abundant mixed grinding, obtain 45% flupoxam clethodim suspension emulsion.
Embodiment 14:63% flupoxam clethodim suspension emulsion
Flupoxam 13g, clethodim 50g, moistening penetrant t 3g, Sodium Polyacrylate 7g, starch 1g, organosilicon 1g, water 25g, through abundant mixed grinding, obtain 63% flupoxam clethodim suspension emulsion.
Embodiment 15:70% flupoxam clethodim suspension emulsion
Flupoxam 10g, clethodim 60g, polyoxyethylene nonylphenol ether 4g, sodium phosphate trimer 8g, xanthans 0.5g, organosilicon 0.5g, water 17g, through abundant mixed grinding, obtain 70% flupoxam clethodim suspension emulsion.
Embodiment 16: Toxicity Determination test
Test method: 4/5 place that test soil is quantitatively filled to basin alms bowl, from top pouring, make soil complete wetting to saturated mode in water, by pretreated, for examination weed seed (corn sow thistle), be evenly sowed at soil surface, earthing 0.5cm, after planting move into greenhouse cellar culture, with the moisturizing of basin alms bowl bottom infiltrating irrigation mode to saturated mode; The weeds laggard seedling in the ranks of emerging is determined strain, guarantees the consistent in density of weeds; To weeds, grow to the 2-3 leaf phase and carry out dispenser processing, each is processed 4 times and repeats, and calculates preventive effect, then by method of least squares, calculates concentration EC in inhibition
50(95% confidence interval), then calculate co-toxicity coefficient (CTC) by the abundant method of Sun Yun:
Actual measurement toxicity index (ATI)=(standard medicament EC50/ reagent agent EC50) * 100
Theoretical toxicity index (TTI)=(percentage composition of A in toxicity index * mixture of A)+(percentage composition of B in toxicity index * mixture of B)
Co-toxicity coefficient (CTC)=[the theoretical virulence coefficient (TTI) of mixture actual measurement virulence coefficient (ATI)/mixture] * 100
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.
Testing result is in Table 1.
Table 1 Herbicidal combinations of the present invention is measured the synergy of corn sow thistle
From the measurement result of table 1, when flupoxam and clethodim proportioning are between 1 ︰ 2-10, co-toxicity coefficient is all greater than 120, has obvious synergistic effect.
Embodiment 17: field control effectiveness test
The weed killer herbicide making by the embodiment of the present invention 6 and flupoxam single dose and clethodim single dose are carried out field efficacy comparative trial.5% the missible oil making by 20% flupoxam missible oil, 30% clethodim EC and the embodiment of the present invention 6 respectively in the soybean 1-3 leaf phase processing of spraying.After medicine, 30d adds up respectively the preventive effect to barnyard grass, black nightshade grass and field bindweed, the results are shown in Table 2.
Table 2 weed killer herbicide of the present invention and the contrast of single dose weed killer herbicide preventive effect
Field control effectiveness test from table 2, in weed killer herbicide effective ingredient consumption of the present invention (being Herbicidal combinations consumption of the present invention), be less than under the prerequisite of single amount of application, the preventive effect of barnyard grass, black nightshade grass and field bindweed and integrated control effect are significantly improved, this is consistent with Toxicity Determination result of the test, has obvious synergistic effect.
The explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.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 carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
Claims (8)
1. a Herbicidal combinations, is characterized in that, flupoxam and clethodim, consists of, and described flupoxam and clethodim weight ratio are 1:2-10.
2. Herbicidal combinations according to claim 1, is characterized in that, described flupoxam and clethodim weight ratio are 1:4-7.
3. the application of Herbicidal combinations in preparation control soybean grassy weed and broadleaf weed herbicide described in claim 1-2 any one.
4. application according to claim 3, described soybean grassy weed and broad leaved weed are barnyard grass, black nightshade grass, field bindweed and corn sow thistle.
5. a weed killer herbicide, is characterized in that, can accept auxiliary material described in the claim 1-2 any one that is 1%-80% be comprised of weight percentage on Herbicidal combinations and pesticidal preparations, and described weed killer herbicide is microemulsion, missible oil or suspension emulsion.
6. weed killer herbicide according to claim 5, is characterized in that, in described microemulsion, the weight percentage of Herbicidal combinations is 1%-20%.
7. weed killer herbicide according to claim 5, is characterized in that, in described missible oil, the weight percentage of Herbicidal combinations is 5%-80%.
8. weed killer herbicide according to claim 5, is characterized in that, in described suspension emulsion, the weight percentage of Herbicidal combinations is 20%-70%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310207234.9A CN103250704B (en) | 2013-05-29 | 2013-05-29 | Weeding composition and preparation thereof |
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| CN201310207234.9A CN103250704B (en) | 2013-05-29 | 2013-05-29 | Weeding composition and preparation thereof |
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| CN103250704B true CN103250704B (en) | 2014-12-10 |
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| CN201310207234.9A Expired - Fee Related CN103250704B (en) | 2013-05-29 | 2013-05-29 | Weeding composition and preparation thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105432621A (en) * | 2014-09-28 | 2016-03-30 | 南京华洲药业有限公司 | Weeding composition containing clodinafop-propargyl and flupoxam and application thereof |
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Non-Patent Citations (3)
| Title |
|---|
| 刘长令.除草剂卷.《世界农药大全》.2002,173，122. * |
| 叶贵标.除草剂作用机理分类法及其应用.《农药科学与管理》.1999,第20卷(第1期),33、35. * |
| 除草剂作用机理分类法及其应用;叶贵标;《农药科学与管理》;19990331;第20卷(第1期);33、35 * |
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