CN104839190B - It is a kind of containing topramezone and the grand maize post-emergence compound herbicide of thiophene ketone sulphur - Google Patents
It is a kind of containing topramezone and the grand maize post-emergence compound herbicide of thiophene ketone sulphur Download PDFInfo
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Abstract
The present invention relates to technical field of pesticide, disclose a kind of containing topramezone and the grand maize post-emergence compound herbicide of thiophene ketone sulphur, the active component of the complex weedicide is by topramezone and thiophene ketone sulphur is grand constitutes, and the grand weight ratio of the topramezone, thiophene ketone sulphur is 0.1 80：0.1‑80.Complex weedicide of the present invention can prevent and kill off corn field annual gramineous weed and can prevent and kill off broad leaved weed and nutgrass flatsedge again, herbicidal effect is notable, have significant synergies, and a dispenser can prevent and kill off the weeds in crop whole breeding time, it is a kind of preferable herbicide on succession crop without influence.
Description
Technical field
The present invention relates to technical field of pesticide, and in particular to a kind of corn containing topramezone and the grand active component of thiophene ketone sulphur
Post-emergence complex weedicide.
Technical background
Corn is both the important cereal crops of China, is also important forage crop.In recent years, with animal husbandry, food
The development of the industries such as processing, wine-making industry and biodiesel, the market demand of corn is continuously increased.China's corn planting face in 2012
Product is only second to paddy rice up to 3994.9 ten thousand hectares, as second largest long-term cropping, and also increased trend.Corn field it is miscellaneous
Grass occurs generally, and species is various.Particularly there is serious, crop smothering occurring area Zhan Gai areas kind in the summer corn crop smothering of Yellow-huai river basin
The 82%~96% of area is planted, wherein medium above hazard area is up to 64~66%.Maize at Seedling Stage is the most serious by crop smothering, performance
For plant is short and small, bar spire yellow, so as to cause middle and later periods corn growth bad, Severe Reduction.
With the development of agricultural cience and farming techniques, the popularization and application of chemical herbicide are as saving of labor, time saving, cost-effective
One of strong well stimulation.Before seedling and after seedling two critical periods of early stage enter after broadcasting mostly for the chemical prevention of corn field weed
OK, typically applied before the leaf phase of corn 2.At present, corn herbicide kind is more, wherein representative for preventing and kill off corn field
The kind of weeds has nicosulfuron and mesotrione.But nicosulfuron has poisoning, mesotrione to some corn varieties
It is good to corn safety, but it is less desirable to grassy weed effect.
Topramezone (trade name bud is defended) biggest advantage is exactly security, and it has good to most of corn
Selectivity, including ordinary maize, corn, waxy corn, pop corn.And the whole growth period after maize seedling can be just
Often apply.
Topramezone has good preventive effect to most of annual corn field common weeds, especially grassy weed, also right
The malignant weeds such as dayflower, acalypha copperleaf have preferable prevention effect.Topramezone has broader use than conventional herbicide after seedling
Phase, peasant household can be allowed to emerge in appropriate weeds, dispenser when farming season.
But because topramezone is imported medicine, its import volume is limited and price is high, so limit it using.Other benzene azoles
Humulone is undesirable to broad leaved weed and Sha section weed control efficacy.
Thiophene ketone sulphur grand (thiencarbazone-methyl) is sulfonyl-amino-carbnyl triazolinone class herbicide, is acetyl
Lactic acid synthetase inhibitors.It is that can effectively prevent and kill off corn field grassy weed and broad leaved weed that thiophene ketone sulphur is grand.It is early before bud and after bud
Phase all can be used.
The content of the invention
Grassy weed can be prevented and kill off it is an object of the invention to provide one kind, broad leaved weed and nutgrass flatsedge, and effect can be prevented and kill off again
A kind of really good maize post-emergence compound herbicide containing topramezone, it is to succession crop safety.
In order to realize foregoing invention purpose, the present invention provides following technical scheme：
It is a kind of containing topramezone and the grand maize post-emergence compound herbicide of thiophene ketone sulphur, the active component of the complex weedicide is
By topramezone and thiophene ketone sulphur is grand constitutes, the grand weight ratio of the topramezone, thiophene ketone sulphur is 0.1-80：0.1-80.
Further scheme, the topramezone and the grand weight ratio of thiophene ketone sulphur are 14-22：4-12.
Further scheme, the topramezone and the grand weight ratio of thiophene ketone sulphur are 18：8 or 20：6.
Further scheme, the topramezone and the grand quality of thiophene ketone sulphur and account for the 0.1 of the complex weedicide gross mass
~85%.
Further scheme, the formulation of the complex weedicide for dispersible oil-suspending agent, suspending agent, suspension emulsion, aqueous emulsion,
Microemulsion, missible oil, wettable powder or water dispersible granules.
The synergy after mixture is evaluated with the co-toxicity coefficient method of Sun Yunpei, topramezone, thiophene ketone sulphur grand two is as a result shown
Plant active component and press 14-22：The co-toxicity coefficient of 4-12 ratios compounding is all higher than 120, synergistic effect is reached, wherein with 18:8 Hes
20:6 ratio mixture co-toxicity coefficient is maximum, has significant synergies, and has to annual single broadleaf weed and nutgrass flatsedge
Synergistic effect.
Security test experiment to corn shows that the grand two kinds of active components of topramezone, thiophene ketone sulphur compounds cauline leaf process,
Suppress the ED of corn growth 10%10=598.7409, suppress the ED of weed growth 90%90=36.5796, selectivity factor=
598.7409/36.5796=16.37>2, it is believed that the medicament has obvious selectivity, the grand two kinds of work of topramezone, thiophene ketone sulphur
Property composition mixture has good security to corn.
Complex weedicide of the present invention was shown by the field control effectiveness test of 2 years, in the leaf phase of corn 3~5, weeds 2-5
Leaf does not wait the phase, and corn has no symptom of chemical damage from dispenser to maturity period, to corn safety.80 milliliter/mu of preventive effect of weeds reaches for 10 days
To more than 75.3%, more than 90.5% is reached within 30 days, with the increase of dosage, preventive effect is remarkably reinforced, in the milli of corn field 100
Liter/mu is that can reach good herbicidal effect, is compared with one of which active ingredient is used alone, and herbicide controlling spectrum is expanded, to wealthy
Leaf weeds and nutgrass flatsedge have obvious synergistic effect.Dispenser can control the weeds in crop whole growth period, not only remove
Careless effect is significant, and it is environmentally friendly, on second stubble crop without influence.
Compared with prior art, complex weedicide of the present invention can prevent and kill off grassy weed, and it is miscellaneous to prevent and kill off broad-leaved again
Grass and nutgrass flatsedge, to corn safety, and on succession crop without influence, have a good application prospect.
Specific embodiment
With reference to embodiment, the present invention is expanded on further：
Embodiment 1：2.6% topramezone thiophene ketone sulphur is grand to dispersible oil-suspending agent (topramezone：Thiophene ketone sulphur is grand=and 18：
8)
1.8kg topramezones are taken, 0.8kg thiophene ketone sulphurs are grand, 8kg Pluronic125,5kg propane diols, 8kg xanthans, 1kg
Methylated vegetable oil, water complements to 100kg.By being sufficiently mixed allotment, ball mill grinding, adjusting, be packaged to be oil-suspending agent.
Embodiment 2：The 26% topramezone grand suspending agent (topramezone of thiophene ketone sulphur：Thiophene ketone sulphur is grand=and 18：8)
18kg topramezones are taken, 8kg thiophene ketone sulphurs are grand, 8kg sodium lignin sulfonates, 5kg aliphatic alcohol polyethenoxies, 1kg xanthan
Glue, 2kg polyoxyethylene polyoxy propyl alcohol amidogen ethers, 5kg ethylene glycol, water complements to 100kg.Through being sufficiently mixed allotment, ball mill grinding,
Adjust, be packaged to be suspending agent.
Embodiment 3：The 18% topramezone grand suspending agent (topramezone of thiophene ketone sulphur：Thiophene ketone sulphur is grand=and 14：4)
14kg topramezones are taken, 4kg thiophene ketone sulphurs are grand, 5kg sodium lignin sulfonates, 2kg aliphatic alcohol polyethenoxies, 1kg xanthan
Glue, 2kg polyoxyethylene polyoxy propyl alcohol amidogen ethers, 5kg ethylene glycol, water complements to 100kg.Through being sufficiently mixed allotment, ball mill grinding,
Adjust, be packaged to be oil-suspending agent.
Embodiment 4：75% topramezone thiophene ketone sulphur precititation dispersible granule (topramezone：Thiophene ketone sulphur is grand=and 16：4)
60kg topramezones are taken, 15kg thiophene ketone sulphurs are grand, 7kg D-425,5kg EFW, 5kg ammonium sulfate, 2kg polyethylene glycol,
Kaolin supplies 100%, be adequately mixed, air-flow crushing, mixing, granulation, drying and screening obtain water dispersible granules.
Embodiment 5：The 26% topramezone grand suspending agent (topramezone of thiophene ketone sulphur：Thiophene ketone sulphur is grand=and 14：12)
14kg topramezones are taken, 12kg thiophene ketone sulphurs are grand, 5kg sodium lignin sulfonates, 5kg aliphatic alcohol polyethenoxies, 1kg xanthan
Glue, 2kg polyoxyethylene polyoxy propyl alcohol amidogen ethers, 5kg ethylene glycol, water complements to 100kg.Through being sufficiently mixed allotment, ball mill grinding,
Adjust, be packaged to be oil-suspending agent.
Embodiment 6：The 26% topramezone grand suspending agent (topramezone of thiophene ketone sulphur：Thiophene ketone sulphur is grand=and 20：6)
20kg topramezones are taken, 6kg thiophene ketone sulphurs are grand, 5kg sodium lignin sulfonates, 5kg aliphatic alcohol polyethenoxies, 1kg xanthan
Glue, 2kg polyoxyethylene polyoxy propyl alcohol amidogen ethers, 5kg ethylene glycol, water complements to 100kg.Through being sufficiently mixed allotment, ball mill grinding,
Adjust, be packaged to be oil-suspending agent.
Embodiment 7：The 52% topramezone grand wettable powder (topramezone of thiophene ketone sulphur：Thiophene ketone sulphur is grand=and 22：4)
44kg topramezones are taken, the grand 5kg sodium lignin sulfonates of 8kg thiophene ketone sulphurs, 1kg lauryl sodium sulfate, kaolin is mended
Foot 100%, is adequately mixed, air-flow crushing obtains wettable powder.
Embodiment 8：68% topramezone thiophene ketone sulphur precititation dispersible granule (topramezone：Thiophene ketone sulphur is grand=and 22：12)
44kg topramezones are taken, 24kg thiophene ketone sulphurs are grand, 7kg D-425,5kg EFW, 5kg ammonium sulfate, 2kg polyethylene glycol,
Kaolin supplies 100%, be adequately mixed, air-flow crushing, mixing, granulation, drying and screening obtain water dispersible granules.
Embodiment 9：The grand cauline leaf process synergy toxicity determination test of topramezone thiophene ketone sulphur
Under greenhouse experiment, using pot-culture method, the weeding effect of the topramezone thiophene grand binary built of ketone sulphur is studied
Really, and with the co-toxicity coefficient method of Sun Yunpei the synergy type after three's different proportion is used with is evaluated, is topramezone, thiophene ketone
The grand rational mixture of sulphur provides scientific basis.
It is corn variety for studying thing：Tuck in single No. 2
It is lady's-grass (Digitaria sanguinalis (Linn.) Scop.), green bristlegrass (Setaria for examination weeds
Viridis (L.) Beauv.), it is acalypha copperleaf (Acalypha australis L.), lamb's-quarters (Chenopodium album L.), different
Type nutgrass flatsedge (Cyperus difformis L.) (field harvesting upper one year seed, germination percentage is more than 85%).
Reagent agent：Quantitative active compound is weighed with electronic balance, appropriate emulsifying agent is added, with acetone solution, finally used
Above-mentioned active compound is diluted to required concentration by the 0.1% POLYSORBATE 80 aqueous solution.97% topramezone active compound (BASF European Co., Ltd)；
The 95% grand active compound of thiophene ketone sulphur (Anhui Fengle Agricultural Co., Ltd provides for oneself).
Topramezone, the grand single dose of thiophene ketone sulphur and 5 topramezones and the grand mixture preparation of thiophene ketone sulphur are set into 5 dosage respectively,
Blank separately is set, each test process is repeated 4 times.Treatment agent dosage refers to table 1.
The test process of table 1 and test level (concentration ga.i./kg)
In the leaf phase of corn 3, weeds 2-4 leaf phase cauline leaf spraying treatments, the aggrieved disease of corn and weeds is recorded after dispenser in detail
Shape, 20d after medicine carries out fresh weight measurement, and compared with control treatment, calculates fresh weight preventive effect (being specifically shown in shown in table 2 below).Experiment
Synergy type of the result with the co-toxicity coefficient method evaluation of Sun Yunpei after mixed, according to SUN, Y-P (Sun Yunpei) method calculates it
Actual toxicity index, mixture theoretical toxicity index, co-toxicity coefficient.With log concentration as X, pest and disease damage preventive effect probit value is Y, is asked back
Return equation (being specifically shown in shown in table 3 below).
Actual toxicity index=standard agent LD50The LD of/mixture50×100
Theoretical toxicity index=∑ the percentage of the medicament active ingredient (toxicity index of reagent agent × in mixture)
Actual toxicity index/theoretical toxicity index × 100 of co-toxicity coefficient=mixture
With topramezone as standard agent in experiment.
Criterion：Co-toxicity coefficient<80 is antagonism, is summation action between 80-120,>120 is synergistic effect.
Fresh weight preventive effects of the 20d to weeds after the topramezone of table 2 and the grand mixture medicine of thiophene ketone sulphur
Prevention effect is four average values of data in table.
As shown in Table 2：Toxic action situation and preventive effect of the medicament to weeds.Its respective toxicity regression is calculated by formula
Equation, LD50, actual toxicity index, theoretical toxicity index and co-toxicity coefficient.It is listed in table 3.
Table 3：Topramezone and synergy of the thiophene grand mixture of ketone sulphur to weeds
| Treatment | Regression equation | Coefficient correlation | LD50 | Actual toxicity index | Theoretical toxicity index | Coefficient of synergism |
| A | Y=1.4206x+7.6323 | 0.9991 | 0.0140 | 100 | / | / |
| B | Y=1.4159x+8.0179 | 0.9989 | 0.0074 | 189.19 | / | / |
| C | Y=1.9531x+9.3110 | 0.9980 | 0.0080 | 175.00 | 141.16 | 123.97 |
| D | Y=1.9287x+9.1321 | 0.9997 | 0.0072 | 194.44 | 134.30 | 144.78 |
| E | Y=2.1798x+9.7824 | 0.9983 | 0.0064 | 218.75 | 127.44 | 171.65 |
| F | Y=1.9945x+9.3033 | 0.9994 | 0.0070 | 200.00 | 120.58 | 165.86 |
| G | Y=1.9328x+9.0983 | 0.9983 | 0.0076 | 184.21 | 113.73 | 161.97 |
From experiment, the co-toxicity coefficient for processing C, D, E, F, G is all higher than 120, illustrates that topramezone is grand multiple with thiophene ketone sulphur
With with notable synergistic effect.Wherein topramezone presses 18 with thiophene ketone sulphur is grand：8 and 20：The co-toxicity coefficient of 6 ratio mixtures is maximum,
Annual single broadleaf weed is had significant synergies.
Embodiment 10：The topramezone grand cauline leaf process of thiophene ketone sulphur are tested the security indoor measurement of corn
Under greenhouse experiment, using pot-culture method, the grand two-spot compounding cauline leaf process pair of research topramezone, thiophene ketone sulphur
The security of corn, for the grand rational mixture of topramezone, thiophene ketone sulphur provides scientific basis.
For studying thing：Corn variety：Tuck in single No. 2
For examination weeds：Lady's-grass (Digitaria sanguinalis (Linn.) Scop.), green bristlegrass (Setaria
Viridis (L.) Beauv.), concave head amaranth (Amaranthus ascendens Loi sel.), lamb's-quarters (Chenopodium album
L.), difformed galingale herb (Cyperus difformis L.) (field harvesting upper one year seed, germination percentage is more than 85%).
Dispenser treatment when maize seedling grows to 3~4 leaves and weeds grow to 3~5.Quantitative active compound is weighed with electronic balance,
Appropriate emulsifying agent is added, it is dense needed for finally above-mentioned active compound is diluted to the 0.1% POLYSORBATE 80 aqueous solution with acetone solution
Degree, in the leaf phase of corn 3, weeds 2-4 leaf phase cauline leaf spraying treatments.
After dispenser, investigate each treatment corn whether there is symptom of chemical damage, symptom of chemical damage, grade are recorded in detail if having, 20 after medicine
My god, each treatment corn fresh weight is measured, fresh weight inhibition is calculated, with clear and definite test medicine to the security of corn.And record in detail
The damage symptoms (such as growth inhibition, chlorosis, deformity) of weeds, in 20 days after medicine, weigh each treatment weeds aerial part fresh weight,
Calculate the fresh weight preventive effect of weeds.
Then regression analysis is carried out to the logarithm value of drug dose and the niqueMin of corn fresh weight inhibition with DPS softwares,
Dosage ED when calculating coefficient correlation and suppressing crop 10%10, and suppress weeds 90%ED90, obtain selectivity index.
Selectivity index=ED10/ED90
Observe within 5 days after dispenser, the high concentration 65mg/kg of the topramezone thiophene grand recommended dose of ketone sulphur, 2 times of amount 130mg/
Kg, the 260mg/kg treatment of 4 times of amounts, corn plant height and growing way are normal, are not distinguished significantly with blank treatment.
The activity of weeding of table 4 and crop safety ocular estimate evaluation criterion
Inhibitory action of the topramezone grand suspending agent of thiophene ketone sulphur of table 5 26% to corn
| Treatment | Mass concentration (mg/kg) | 20d inhibiting rates (%) |
| 16.25 | 0.22 | |
| 32.5 | 0.65 | |
| The 26% topramezone thiophene grand suspending agent of ketone sulphur | 65 | 1.06 |
| 130 | 2.46 | |
| 260 | 5.40 | |
| Control | Clear water | / |
Fresh weight preventive effect of the topramezone grand suspending agent of thiophene ketone sulphur of table 6 26% to weeds
By table 5, table 7, can be in the hope of the ED of suppression corn growth 10% by DPS softwares10=598.7409, suppress weeds
The ED of growth 90%90=36.5796, selectivity factor=598.7409/36.5796=16.37>2, it is believed that the medicament has bright
Aobvious selectivity, can carry out field control effectiveness test.The medicament is calculated the toxic action situation and preventive effect of weeds by formula
Its each virulence regression equation, LD50, it is listed in table 7.
Table 7：Virulence regression equation and LD50
| Treatment | Regression equation | Coefficient correlation | LD50 | 95% confidential interval |
| A | Y=2.0120+2.73122x | 0.9977 | 12.4169 | 11.4855-13.4238 |
As shown in Table 7：The LD of the 26% topramezone thiophene grand suspending agent of ketone sulphur50For：12.4169,95% confidential interval is
11.4855-13.4238.
So the grand cauline leaf process recommended dose high dose treatment of topramezone thiophene ketone sulphur, high dose 2 times for the treatment of, high doses
4 times for the treatment of, three concentration, corn plant height and growing way and blank district corn, without significant difference, corn growth is normal.
Embodiment 11：Field control effectiveness test
Complex weedicide of the present invention was shown by the field control effectiveness test of 2 years, in the leaf phase of corn 3~5, weeds 1~5
Leaf does not wait the phase, using grand (the thiophene ketone of 1.8% topramezone+0.8% of 2.6% topramezone thiophene ketone sulphur in embodiments of the invention 1
Sulphur is grand) milliliter/mu of oil-suspending agent dosage 80,100,120,200 is dispersibled, it is watered 40 kgs/acre and sprays, 10,30 days and maturation
Phase estimates corn safety and Weed-control effect, preventive effect is surveyed within 10,30 days, as a result such as table 8 below：
Table 8：Preventive effect
By range estimation, corn has no symptom of chemical damage from dispenser to maturity period, to corn safety.80 milliliters of the preventive effect of weeds/
Mu reaches more than 75.3% for 10 days, reaches more than 90.5% within 30 days, and with the increase of dosage, preventive effect is remarkably reinforced, in corn
Milliliter/mu of field 100 can reach good herbicidal effect, compare with one of which active ingredient is used alone, and expand herbicide
Spectrum, has obvious synergistic effect to broad leaved weed and nutgrass flatsedge.Dispenser can control the weeds in crop whole growth period,
Not only herbicidal effect is notable, and environmentally friendly, and on second stubble crop without influence, the pollution to environment is small, to people, animal, birds
And beneficial organism safety, be conducive to keeping ecological balance.In addition, herbicide of the invention is processed using physical method, work is produced
Skill is simple, and three-waste free discharge in production process has no adverse effects to ecological environment.It is that current prevention effect preferably compounds weeding
Agent.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (4)
1. a kind of containing topramezone and the grand maize post-emergence compound herbicide of thiophene ketone sulphur, it is characterised in that：The complex weedicide
Active component is by topramezone and thiophene ketone sulphur is grand constitutes, and the topramezone and the grand weight ratio of thiophene ketone sulphur are 14-22：4-12
。
2. complex weedicide according to claim 1, it is characterised in that：The topramezone and the grand weight ratio of thiophene ketone sulphur
It is 18：8 or 20：6.
3. complex weedicide according to claim 1, it is characterised in that：The topramezone and the grand quality of thiophene ketone sulphur and
Account for the 0.1~85% of the complex weedicide gross mass.
4. the complex weedicide according to claim any one of 1-3, it is characterised in that：The formulation of the complex weedicide is
Suspending agent, suspension emulsion, aqueous emulsion, microemulsion, missible oil, wettable powder or water dispersible granules.
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| CN104782644A (en) * | 2015-04-30 | 2015-07-22 | 湖南海利常德农药化工有限公司 | Weeding composition |
| CN107853314A (en) * | 2017-12-01 | 2018-03-30 | 南京红太阳股份有限公司 | A kind of sulphur of ketone containing thiophene is grand with the Herbicidal combinations of prometryn and its application |
| CN107810973A (en) * | 2017-12-01 | 2018-03-20 | 南京红太阳股份有限公司 | A kind of sulphur of ketone containing thiophene is grand with the Herbicidal combinations of amicarbazone and its application |
| CN107926971A (en) * | 2017-12-01 | 2018-04-20 | 南京红太阳股份有限公司 | A kind of sulphur of ketone containing thiophene is grand with the Herbicidal combinations of Mediben and its application |
| CN107853315A (en) * | 2017-12-01 | 2018-03-30 | 南京红太阳股份有限公司 | A kind of sulphur of ketone containing thiophene is grand with the Herbicidal combinations of Flumetsulam and its application |
| CN107950558A (en) * | 2017-12-01 | 2018-04-24 | 南京红太阳股份有限公司 | A kind of sulphur of ketone containing thiophene is grand with the Herbicidal combinations of bentazone and its application |
| CN107810972A (en) * | 2017-12-01 | 2018-03-20 | 南京红太阳股份有限公司 | A kind of sulphur of ketone containing thiophene is grand with the Herbicidal combinations of sulfentrazone and its application |
| CN107996596A (en) * | 2017-12-25 | 2018-05-08 | 南京红太阳股份有限公司 | A kind of sulphur of ketone containing thiophene is grand with making its grand Herbicidal combinations and its application |
| CN113647401A (en) * | 2021-08-18 | 2021-11-16 | 安徽润农腾辉生物科技有限公司 | Weeding composition containing topramezone and application thereof |
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