CN103283759A - Herbicidal composition for corn field and preparation method thereof - Google Patents
Herbicidal composition for corn field and preparation method thereof Download PDFInfo
- Publication number
- CN103283759A CN103283759A CN2013102602010A CN201310260201A CN103283759A CN 103283759 A CN103283759 A CN 103283759A CN 2013102602010 A CN2013102602010 A CN 2013102602010A CN 201310260201 A CN201310260201 A CN 201310260201A CN 103283759 A CN103283759 A CN 103283759A
- Authority
- CN
- China
- Prior art keywords
- prosulfuron
- flumiclorac pentyl
- herbicidal combinations
- herbicidal composition
- preparation
- 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.)
- Granted
Links
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- 238000002360 preparation method Methods 0.000 title claims abstract description 22
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- 239000004009 herbicide Substances 0.000 claims description 31
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Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to the field of a pesticide preparation, and discloses a herbicidal composition for a corn field and a preparation method thereof. The herbicidal composition disclosed by the invention is prepared from prosulfuron and flumiclorac pentyl. The herbicidal composition and the preparation disclosed by the invention take the prosulfuron and the flumiclorac pentyl compounded as effective ingredients; the drug resistance of weeds is delayed because of complementary advantages and synergistic effect; meanwhile, the herbicidal composition has synergistic effect on broadleaf weeds in the corn field; the dosage and the drug times are greatly reduced; the herbicidal composition is safe, efficient, environment-friendly and the like, and can be widely applied to prevention and treatment of crop smothering of the broadleaf weeds in the corn field.
Description
Technical field
The present invention relates to the pesticidal preparations field, relate to a kind of cornfield weeding composition and preparation thereof specifically.
Background technology
Corn is China's important crops, and maize sown area increases by 2% every year, reaches about 3,000 ten thousand hectares to national maize sown area in 2010, and cultivated area is only second to wheat and paddy rice and occupies the 3rd.But the most of corn field of China always has crop smothering in various degree to take place, and corn weeds kind is a lot, and various places are because of factor weeds kind differences such as weather, soil.According to investigations, the corn field common weed has kind more than 30, as grassy weeds such as barnyard grass grass, moleplant seed, lady's-grass, green foxtail, eleusine indica, Bermuda grass, reeds, Convolvulaceae weeds such as field bindweed, sedge weeds such as cyperus iria, and broad leaved weed such as knotweed, Siberian cocklebur, piemarker, kitchen garden, black nightshade, lamb's-quarters, acalypha copperleaf, ox chickweed, Amaranthus retroflexus, recessed amaranth, Horseweed Herb, elscholtiza, setose thistle, field thistle, common sow thistle, Eclipta prostrata, ivy glorybind, humid euphorbia, dayflower, wild watermelon, Asiatic plantain, alfalfa, wild soybean.Wherein, the most serious with the harm of broad leaved weeds such as lamb's-quarters, chickweed, shepherd's purse, three-coloured amaranth, these weeds kinds are many, it is wide to distribute, and growing power is vigorous, and the individual plant area coverage is big, fight for moisture, nutriment, space in a large number with corn, cause a little less than the corn growth gesture, directly influence maize yield and quality.Therefore, domestic corn field is extensive use of weed killer herbicide, avoids corn because of the weeds underproduction.
Corn field weed is prevented and kill off mainly based on chemical control, but the pharmacy variety that can use safely at present is few, especially behind the seedling safely and effectively medicament more lack.Corn field weed killer herbicide commonly used has Acetochlor atrazine, nicosulfuron etc.The atrazine herbicidal effect is good, to corn safety, but because of environmental pollution and long residual to back stubble drug injury problem, is used by European Union's restriction.Nicosulfuron is as the ALS inhibitor, the cauline leaf activity is higher, can effectively prevent and kill off most grassy weeds of corn field, but the safety existing problems to corn, hand over system, sweet corn, waxy corn and pop corn to this medicament sensitivity in vain except corn, also found in recent years indivedual common dent corns to responsive.Acetochlor is one of weed killer herbicide of present China usage amount maximum, consider that being exposed to Acetochlor absorbs the above potential hazard to human body of tolerance every day, and in the surface water Acetochlor metabolite to the harm of human body, can't get rid of the existence of genotoxicity now, EU Committee determines and will not register by the weed killer herbicide Acetochlor again that the EU member country of having ordered cancels its registration on July 23rd, 2012.
At present, corn chemical herbicide kind is more, but has various problems mostly, and the grass spectrum is narrow, drug effect is not high as killing, easily produce resistance, the lasting period is short, to the uneasy congruent problem of succession crop.Along with maize culture mode, cropping system constantly change, the crop smothering problem is severe day by day, and weeds in field is wide in variety, emergence period is long, the density height, and harm is heavy, select for use safety, chemical herbicide is the main method of current corn field weeding efficiently, also is the key of guaranteeing that Maize Production gets an abundant harvest.
Summary of the invention
In view of this, the object of the invention provides a kind of cornfield weeding composition and preparation thereof, makes cornfield weeding composition of the present invention to have synergistic effect to the control of broad leaved weed in the water corn field.
For realizing purpose of the present invention, the present invention adopts following technical scheme:
A kind of cornfield weeding composition is made up of prosulfuron and Flumiclorac pentyl.
Prosulfuron, have another name called prosulfuron, English name prosulfuron, be the sulfonylurea herbicide of Syngenta Co.,Ltd's exploitation, application period is long, can be to 10 leaf phases, especially effective to Cruciferae and difficult control weeds, because its half life period in soil is 8～40d, the half life period in milpa is 1～2.5h, is significantly shorter than the metabolism time of other commercialization sulfonylurea herbicides in milpa.Be mainly used in preventing and kill off broad leaved weed.Weeds such as abutilon, Amaranthus, Chenopodium, Polygonum, Stellaria had excellent preventive effect.To safety such as corns, to succession crop such as barley, wheat, oat, paddy rice, soybean, potato safety.Its chemical formula is:
Flumiclorac pentyl, selective herbicide behind the bud of tagging, the blade face absorbs rapidly.1 year living broad leaved weed there is good preventive effect.The former oxidase inhibitor of prophyll quinoline.Medicament by the assorted prosperous Foliage Absorption of sensitivity after, act on plant tissue rapidly, cause the protoporphyrin accumulation, cell membrane lipid peroxidation is strengthened, thereby causes cell structure and the cell function irreversible lesion of susceptible weeds.Can be used for preventing and kill off weeds such as Siberian cocklebur, artemisiifolia, lamb's-quarters, Amaranthus weeds, spot humid euphorbia, bur, datura, piemarker.Its chemical formula is:
Prosulfuron is different with the Flumiclorac pentyl structure, mechanism of action difference, the Herbicidal combinations of being made up of prosulfuron and Flumiclorac pentyl has enlarged and has killed the grass spectrum, the most of weeds that can prevent and kill off corn field simultaneously, also have simultaneously the use age wide, to back stubble safety, long, environmentally safe advantage of lasting period.
As preferably, described prosulfuron and Flumiclorac pentyl weight ratio are 1:10-100, and more preferably 1:20-60 most preferably is 1:30-50.
Different herbicidal activity components mix each active component of back because the difference of composition, structure, physicochemical property makes that the synergy between each active component is 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 being exactly the effect of its generation, summation action equals the sum total of each composition effect; When antagonism referred to that two kinds of materials act on living organism, a kind of material disturbed the effect of another kind of material, or the effect of interfering with an opponent each other, the phenomenon that general effect is descended.
The present invention is according to Sun Yunpei (Sun Y-P) method, calculate co-toxicity coefficient respectively and estimate the effect of using with of prosulfuron and Flumiclorac pentyl, co-toxicity coefficient was all greater than 120 when the result was presented at prosulfuron and Flumiclorac pentyl weight ratio and is 1:10-100, and the mixing that shows the two is used has the notable synergistic effect.
Therefore, the invention provides the application of described Herbicidal combinations in the broadleaf weed herbicide of preparation control of maize field.
Herbicidal combinations of the present invention can be made into multiple weed killer herbicide formulation, is can accept auxiliary material on the Herbicidal combinations of the present invention of 1%-90% and the pesticidal preparations to form by percentage composition.As preferably, the percentage composition of described Herbicidal combinations is 10%-85%.Auxiliary material of the present invention comprises components such as wetting agent, dispersant, disintegrant, adhesive, thickener, emulsifier, solvent, filler and water.
Herbicidal combinations preparation of the present invention can be made various formulations by Herbicidal combinations of the present invention and conventional auxiliary material as required.Preferably, Herbicidal combinations preparation of the present invention is missible oil, wetting powder or water dispersible granules.
When Herbicidal combinations preparation of the present invention was missible oil, the percentage by weight that wherein said Herbicidal combinations accounts for described missible oil was 20%-80%, and being preferably the percentage by weight that 15%-40%, emulsifier account for described missible oil is 1%-20%, and surplus is solvent.
When Herbicidal combinations preparation of the present invention also can be wetting powder, the percentage by weight that wherein said Herbicidal combinations accounts for described wetting powder is 1%-90%, and being preferably percentage by weight that 10%-70%, wetting agent account for described wetting powder and being the percentage by weight that 1%-10%, dispersant account for described wetting powder is that 1%-10%, surplus are carrier.
When Herbicidal combinations preparation of the present invention also can be water dispersible granules, the percentage by weight that wherein said Herbicidal combinations accounts for described water dispersible granules is 1%-90%, being preferably percentage by weight that 15%-85%, wetting agent account for described water dispersible granules and being percentage by weight that 1%-10%, dispersant account for described water dispersible granules and be the percentage by weight that 1%-10%, disintegrant account for described water dispersible granules is 0.1%-5%, and surplus is carrier.
Wetting agent, dispersant, thickener, disintegrant, adhesive and the carrier that the above various preparations of preparation are used and other auxiliary materials are and well known to a person skilled in the art.As preferably, the present invention adopts following auxiliary material:
Wetting agent of the present invention is alkyl sulfate, alkylbenzenesulfonate, draw back in powder, moistening penetrant t, Negel, fatty alcohol polyglycol ether sulphate, fat alcohol polyethylene ether, polyoxyethylene nonylphenol ether, sorbitan fatty acid ester APEO, the Fluhyzon formaldehyde condensation products one or more.
Dispersant of the present invention is sodium lignin sulfonate, calcium lignosulfonate, Sodium Polyacrylate, di-2-ethylhexylphosphine oxide naphthalene sulfonate, alkyl amine group taurate, sodium methylene bis-naphthalene sulfonate formaldehyde condensation products, carboxymethyl cellulose, sodium phosphate trimer, alkylnaphthalene sulfonate condensation polymer.
Emulsifier of the present invention is selected from one or more in farming breast 500, farming breast 600, Nongru-700, NP series, agricultural newborn 0201B, agricultural newborn 0203B, 2201, castor oil polyoxyethylene ether, aliphatic acid polyethenoxy ether, polyoxyethylene aliphatic alcohol ether, ethoxy castor oil, PMA, fatty acid polyethylene glycol ester, the trilaurin APEO.
Solvent of the present invention is selected from one or more the composition in No. 200, the 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.
Disintegrant of the present invention is urea, sodium carboxymethylcellulose, ammonium sulfate, mineral salt, silica gel, PEG, SF-04.
Adhesive of the present invention is sucrose, soluble starch, Sodium Polyacrylate, dextrin, xanthans.
Carrier of the present invention is one or more of kaolin, diatomite, precipitated calcium carbonate, attapulgite, white carbon, urea, ammonium sulfate.
Weed killer herbicide field control effectiveness test result of the present invention shows, singly using under the identical prerequisite of dose with two, has significantly improved preventive effect.This shows that cornfield weeding composition provided by the invention and preparation thereof have significantly reduced dosage and medication number of times, have advantages such as safety, efficient, environmental protection, and delayed the drug-fast generation of weeds.
By above technical scheme as can be known, Herbicidal combinations of the present invention and preparation thereof are composite as active ingredient with prosulfuron and Flumiclorac pentyl, the two mutual supplement with each other's advantages, synergy, delay the drug-fast generation of weeds, simultaneously the corn field broad leaved weed is had synergistic effect, significantly reduced dosage and medication number of times, have advantages such as safety, efficient, environmental protection, can be widely used in the control of corn field broad leaved weed crop smothering.
Embodiment
The embodiment of the invention discloses a kind of cornfield weeding composition and preparation thereof.Those skilled in the art can use for reference this paper content, suitably improve technological parameter and realize.Special needs to be pointed out is that all similarly replace and change apparent to those skilled in the art, they all are regarded as being included in the present invention.Product of the present invention and method are described by preferred embodiment, and the related personnel obviously can change or suitably change and combination product as herein described in not breaking away from content of the present invention, spirit and scope, realizes and use the technology of the present invention.
Further set forth the present invention below in conjunction with embodiment.
Embodiment 1:20% prosulfuron Flumiclorac pentyl EC
Prosulfuron 1%, Flumiclorac pentyl 19%, agricultural newborn 0203B20%, solvent naphtha supply 100% No. 150, through abundant mixed dissolution, namely.
Embodiment 2:40% prosulfuron Flumiclorac pentyl EC
Prosulfuron 1%, Flumiclorac pentyl 39%, farming breast 60025%, solvent naphtha supply 100% No. 100, through abundant mixed grinding, namely.
Embodiment 3:15% prosulfuron Flumiclorac pentyl EC
Prosulfuron 3%, Flumiclorac pentyl 12%, agricultural newborn 0201B25%, solvent naphtha supplies 100% No. 180, through abundant mixed grinding, namely.
Embodiment 4:11% prosulfuron Flumiclorac pentyl WP
Prosulfuron 1%, Flumiclorac pentyl 10%, dodecyl sulphate 3%, calcium lignosulfonate 6%, kaolin supply 100%, pulverize, fully mix, namely through air-flow.
Embodiment 5:35% prosulfuron Flumiclorac pentyl WP
Prosulfuron 1%, Flumiclorac pentyl 34%, draw back powder 4%, NNO8%, precipitated calcium carbonate and supply 100%, pulverize, fully mix, namely through air-flow.
Embodiment 6:70% prosulfuron Flumiclorac pentyl WP
Fluorine sulphur 2%, Flumiclorac pentyl 68%, moistening penetrant t 2%, sodium phosphate trimer 5%, attapulgite supply 100%, pulverize, fully mix, mediate granulation, drying and screening through air-flow, namely.
Embodiment 7:15% prosulfuron Flumiclorac pentyl WDG
Prosulfuron 1%, Flumiclorac pentyl 14%, lauryl sodium sulfate 3%, sodium phosphate trimer 7%, ammonium sulfate 3%, white carbon supply 100%, pulverize, fully mix, mediate granulation, drying and screening through air-flow, namely.
Embodiment 8:47% prosulfuron Flumiclorac pentyl WDG
Prosulfuron 1%, Flumiclorac pentyl 46%, neopelex 2%, carboxymethyl cellulose 5%, ammonium sulfate 3%, kaolin supply 100%, pulverize, fully mix, mediate granulation, drying and screening through air-flow, namely.
Embodiment 9:85% prosulfuron Flumiclorac pentyl WDG
Prosulfuron 1%, Flumiclorac pentyl 84%, neopelex 4%, Sodium Polyacrylate 8%, urea 2%, starch 1%, diatomite supply 100%, pulverize, fully mix, mediate granulation, drying and screening through air-flow, namely.
Embodiment 10: the Toxicity Determination test
Test method: will test 4/5 place that soil quantitatively is filled to the basin alms bowl, and adopt the top pouring, and make the soil complete wetting to saturated mode.(choose the multiple typical broad leaved weed seed of corn field with pretreated for the examination weed seed, as lamb's-quarters, chickweed, shepherd's purse, three-coloured amaranth etc.) evenly be sowed at soil surface, earthing 0.5cm after planting keeps soil fully moistening, move into the conventional cultivation in greenhouse, grow to the 2-3 leaf phase to weeds and carry out the dispenser processing.Weed seed per 20 as a processing, each is handled 4 times and repeats.Calculate preventive effect, calculate concentration EC in the inhibition with method of least squares then
50(95% confidence interval) calculates co-toxicity coefficient (CTC) with the abundant method of Sun Yun again.
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)=[mixture actual measurement virulence coefficient (the ATI)/theoretical virulence coefficient (TTI) of 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 sees Table 1.
Table 1 prosulfuron and Flumiclorac pentyl are measured the synergy of broad leaved weed
| Handle | EC 50(mg/mL) | ATI | TTI | Co-toxicity coefficient CTC |
| Prosulfuron | 0.03624 | 100 | / | / |
| Flumiclorac pentyl | 0.8647 | / | / | / |
| Prosulfuron: Flumiclorac pentyl (1:100) | 0.51 | 7.10 | 5.14 | 138.26 |
| Prosulfuron: Flumiclorac pentyl (1:80) | 0.46 | 7.88 | 5.34 | 146.60 |
| Prosulfuron: Flumiclorac pentyl (1:60) | 0.38 | 9.54 | 5.76 | 165.52 |
| Prosulfuron: Flumiclorac pentyl (1:50) | 0.32 | 11.33 | 6.07 | 186.58 |
| Prosulfuron: Flumiclorac pentyl (1:30) | 0.26 | 15.76 | 7.28 | 216.39 |
| Prosulfuron: Flumiclorac pentyl (1:20) | 0.24 | 15.1 | 8.75 | 172.50 |
| Prosulfuron: Flumiclorac pentyl (1:10) | 0.21 | 17.26 | 12.90 | 133.77 |
By the measurement result of table 1 as can be known, when prosulfuron and Flumiclorac pentyl weight ratio were 1:10-100, co-toxicity coefficient had obvious synergistic effect all greater than 120.
Embodiment 11: field control effectiveness test
The corn 1-3 leaf phase respectively with the processing of spraying of 10% prosulfuron WDG, 10% Flumiclorac pentyl SC and embodiment product of the present invention, 10% prosulfuron WDG consumption is 2g/hm
2, all the other respectively handle effective ingredient consumption is 50g/hm
230d adds up the preventive effect to lamb's-quarters, chickweed, shepherd's purse, three-coloured amaranth respectively behind the medicine, the results are shown in Table 2.
Table 2 weed killer herbicide of the present invention and single agent weed killer herbicide preventive effect contrast (%)
By the field control effectiveness test of table 2 as can be known, under the prerequisite of each effective ingredient consumption of weed killer herbicide of the present invention less than single amount of application, preventive effect to broad leaved weeds such as lamb's-quarters, chickweed, shepherd's purse, three-coloured amaranths significantly improves, and this is consistent with the Toxicity Determination result of the test, has obvious synergistic effect.
The explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle 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 claim of the present invention.
Claims (8)
1. a cornfield weeding composition is characterized in that, is made up of prosulfuron and Flumiclorac pentyl.
2. according to the described Herbicidal combinations of claim 1, it is characterized in that described prosulfuron and Flumiclorac pentyl weight ratio are 1:10-100.
3. according to the described Herbicidal combinations of claim 1, it is characterized in that described prosulfuron and Flumiclorac pentyl weight ratio are 1:20-60.
4. according to the described Herbicidal combinations of claim 1, it is characterized in that described prosulfuron and Flumiclorac pentyl weight ratio are 1:30-50.
5. the application of any described Herbicidal combinations of claim 1-4 in the broadleaf weed herbicide of preparation control of maize field.
6. according to the described application of claim 5, it is characterized in that described broad leaved weed is lamb's-quarters, chickweed, shepherd's purse and three-coloured amaranth.
7. a weed killer herbicide is characterized in that, is can accept auxiliary material on any described Herbicidal combinations of claim 1-4 of 1%-90% and the pesticidal preparations to form by weight percentage.
8. according to the described weed killer herbicide of claim 7, it is characterized in that described weed killer herbicide is missible oil, wetting powder or water dispersible granules.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103548830A (en) * | 2013-11-14 | 2014-02-05 | 联保作物科技有限公司 | Herbicidal composition and preparation thereof |
| CN107771846A (en) * | 2016-08-30 | 2018-03-09 | 南京华洲药业有限公司 | A kind of mixed herbicide containing Flumiclorac pentyl and mesosulfuron |
| CN107771841A (en) * | 2016-08-30 | 2018-03-09 | 南京华洲药业有限公司 | A kind of mixed herbicide containing Flumiclorac pentyl and halosulfuronmethyl |
| CN107771809A (en) * | 2016-08-30 | 2018-03-09 | 南京华洲药业有限公司 | A kind of mixed herbicide containing Flumiclorac pentyl and fluazifop |
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| EP0120814B1 (en) * | 1983-03-28 | 1988-07-27 | Ciba-Geigy Ag | N-phenylsulfonyl-n'-pyrimidinyl- and -triazinyl urea |
| CN1332608A (en) * | 1998-11-10 | 2002-01-23 | 辛根塔参与股份公司 | Herbicidal composition |
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| EP0172306A1 (en) * | 1981-12-25 | 1986-02-26 | Sumitomo Chemical Company, Limited | Tetrahydrophthalimide compounds, their production and use |
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| CN103548830A (en) * | 2013-11-14 | 2014-02-05 | 联保作物科技有限公司 | Herbicidal composition and preparation thereof |
| CN107771846A (en) * | 2016-08-30 | 2018-03-09 | 南京华洲药业有限公司 | A kind of mixed herbicide containing Flumiclorac pentyl and mesosulfuron |
| CN107771841A (en) * | 2016-08-30 | 2018-03-09 | 南京华洲药业有限公司 | A kind of mixed herbicide containing Flumiclorac pentyl and halosulfuronmethyl |
| CN107771809A (en) * | 2016-08-30 | 2018-03-09 | 南京华洲药业有限公司 | A kind of mixed herbicide containing Flumiclorac pentyl and fluazifop |
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