CN104430461A - Pyrazosulfuron-ethyl, fenoxaprop-P-ethyl and penoxsulam compound dispersible oil suspension concentrate and preparation method thereof - Google Patents
Pyrazosulfuron-ethyl, fenoxaprop-P-ethyl and penoxsulam compound dispersible oil suspension concentrate and preparation method thereof Download PDFInfo
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- CN104430461A CN104430461A CN201410728312.4A CN201410728312A CN104430461A CN 104430461 A CN104430461 A CN 104430461A CN 201410728312 A CN201410728312 A CN 201410728312A CN 104430461 A CN104430461 A CN 104430461A
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- China
- Prior art keywords
- ethyl
- fenoxaprop
- pyrazosulfuron
- parts
- penoxsulam
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- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000005592 Penoxsulam Substances 0.000 title abstract description 8
- BGNQYGRXEXDAIQ-UHFFFAOYSA-N Pyrazosulfuron-ethyl Chemical group C1=NN(C)C(S(=O)(=O)NC(=O)NC=2N=C(OC)C=C(OC)N=2)=C1C(=O)OCC BGNQYGRXEXDAIQ-UHFFFAOYSA-N 0.000 title abstract description 8
- PQKBPHSEKWERTG-LLVKDONJSA-N ethyl (2r)-2-[4-[(6-chloro-1,3-benzoxazol-2-yl)oxy]phenoxy]propanoate Chemical group C1=CC(O[C@H](C)C(=O)OCC)=CC=C1OC1=NC2=CC=C(Cl)C=C2O1 PQKBPHSEKWERTG-LLVKDONJSA-N 0.000 title abstract description 8
- 239000012141 concentrate Substances 0.000 title abstract 4
- 239000012053 oil suspension Substances 0.000 title abstract 4
- -1 penoxsulam compound Chemical class 0.000 title abstract 4
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 238000004458 analytical method Methods 0.000 claims abstract description 4
- 239000000084 colloidal system Substances 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 238000004806 packaging method and process Methods 0.000 claims abstract description 4
- 239000004576 sand Substances 0.000 claims abstract description 4
- MPPOHAUSNPTFAJ-UHFFFAOYSA-N 2-[4-[(6-chloro-1,3-benzoxazol-2-yl)oxy]phenoxy]propanoic acid Chemical compound C1=CC(OC(C)C(O)=O)=CC=C1OC1=NC2=CC=C(Cl)C=C2O1 MPPOHAUSNPTFAJ-UHFFFAOYSA-N 0.000 claims description 38
- VXMNDQDDWDDKOQ-UHFFFAOYSA-N Pyrazosulfuron Chemical compound COC1=CC(OC)=NC(NC(=O)NS(=O)(=O)C=2N(N=CC=2C(O)=O)C)=N1 VXMNDQDDWDDKOQ-UHFFFAOYSA-N 0.000 claims description 36
- 239000002131 composite material Substances 0.000 claims description 24
- 239000000375 suspending agent Substances 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 20
- 238000000227 grinding Methods 0.000 claims description 3
- 241000196324 Embryophyta Species 0.000 abstract description 21
- 229940051841 polyoxyethylene ether Drugs 0.000 abstract description 12
- 229920000056 polyoxyethylene ether Polymers 0.000 abstract description 12
- 230000002195 synergetic effect Effects 0.000 abstract description 12
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 abstract description 6
- 235000010234 sodium benzoate Nutrition 0.000 abstract description 6
- 239000004299 sodium benzoate Substances 0.000 abstract description 6
- 239000002904 solvent Substances 0.000 abstract description 6
- 229920001285 xanthan gum Polymers 0.000 abstract description 6
- SYJGKVOENHZYMQ-UHFFFAOYSA-N Penoxsulam Chemical compound N1=C2C(OC)=CN=C(OC)N2N=C1NS(=O)(=O)C1=C(OCC(F)F)C=CC=C1C(F)(F)F SYJGKVOENHZYMQ-UHFFFAOYSA-N 0.000 abstract description 4
- 238000009331 sowing Methods 0.000 abstract 3
- 238000003801 milling Methods 0.000 abstract 2
- 238000002156 mixing Methods 0.000 abstract 2
- 239000003921 oil Substances 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 238000005070 sampling Methods 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 229940082509 xanthan gum Drugs 0.000 abstract 1
- 235000010493 xanthan gum Nutrition 0.000 abstract 1
- 239000000230 xanthan gum Substances 0.000 abstract 1
- 239000004009 herbicide Substances 0.000 description 26
- 239000003814 drug Substances 0.000 description 15
- 230000002363 herbicidal effect Effects 0.000 description 14
- 241000192043 Echinochloa Species 0.000 description 13
- 238000012360 testing method Methods 0.000 description 12
- YZHUMGUJCQRKBT-UHFFFAOYSA-M sodium chlorate Chemical compound [Na+].[O-]Cl(=O)=O YZHUMGUJCQRKBT-UHFFFAOYSA-M 0.000 description 9
- 240000007594 Oryza sativa Species 0.000 description 8
- 235000007164 Oryza sativa Nutrition 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 235000009566 rice Nutrition 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 241000234646 Cyperaceae Species 0.000 description 6
- 241000209504 Poaceae Species 0.000 description 6
- 238000005338 heat storage Methods 0.000 description 6
- 240000000178 Monochoria vaginalis Species 0.000 description 5
- 241000234653 Cyperus Species 0.000 description 4
- 108010016634 Seed Storage Proteins Proteins 0.000 description 4
- 239000004480 active ingredient Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000007619 statistical method Methods 0.000 description 4
- 230000001988 toxicity Effects 0.000 description 4
- 231100000419 toxicity Toxicity 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 241000427159 Achyranthes Species 0.000 description 3
- 235000007516 Chrysanthemum Nutrition 0.000 description 3
- 244000189548 Chrysanthemum x morifolium Species 0.000 description 3
- 244000025670 Eleusine indica Species 0.000 description 3
- 235000014716 Eleusine indica Nutrition 0.000 description 3
- 241001553700 Euphorbia lathyris Species 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 244000144886 lesser spear grass Species 0.000 description 3
- 230000000442 meristematic effect Effects 0.000 description 3
- 230000003449 preventive effect Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 239000005564 Halosulfuron methyl Substances 0.000 description 2
- FMGZEUWROYGLAY-UHFFFAOYSA-N Halosulfuron-methyl Chemical group ClC1=NN(C)C(S(=O)(=O)NC(=O)NC=2N=C(OC)C=C(OC)N=2)=C1C(=O)OC FMGZEUWROYGLAY-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002085 persistent effect Effects 0.000 description 2
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 2
- 229920000053 polysorbate 80 Polymers 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- SXERGJJQSKIUIC-UHFFFAOYSA-N 2-Phenoxypropionic acid Chemical class OC(=O)C(C)OC1=CC=CC=C1 SXERGJJQSKIUIC-UHFFFAOYSA-N 0.000 description 1
- KZNDFYDURHAESM-UHFFFAOYSA-N 2-chloro-n-(2-ethyl-6-methylphenyl)-n-(propan-2-yloxymethyl)acetamide Chemical compound CCC1=CC=CC(C)=C1N(COC(C)C)C(=O)CCl KZNDFYDURHAESM-UHFFFAOYSA-N 0.000 description 1
- 241001290610 Abildgaardia Species 0.000 description 1
- VTNQPKFIQCLBDU-UHFFFAOYSA-N Acetochlor Chemical group CCOCN(C(=O)CCl)C1=C(C)C=CC=C1CC VTNQPKFIQCLBDU-UHFFFAOYSA-N 0.000 description 1
- 102000000452 Acetyl-CoA carboxylase Human genes 0.000 description 1
- 108010016219 Acetyl-CoA carboxylase Proteins 0.000 description 1
- 240000001592 Amaranthus caudatus Species 0.000 description 1
- 235000009328 Amaranthus caudatus Nutrition 0.000 description 1
- 241000209764 Avena fatua Species 0.000 description 1
- 235000007320 Avena fatua Nutrition 0.000 description 1
- 235000007319 Avena orientalis Nutrition 0.000 description 1
- 241000209763 Avena sativa Species 0.000 description 1
- 235000007558 Avena sp Nutrition 0.000 description 1
- 235000004535 Avena sterilis Nutrition 0.000 description 1
- 108010018763 Biotin carboxylase Proteins 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 239000005502 Cyhalofop-butyl Substances 0.000 description 1
- TYIYMOAHACZAMQ-CQSZACIVSA-N Cyhalofop-butyl Chemical group C1=CC(O[C@H](C)C(=O)OCCCC)=CC=C1OC1=CC=C(C#N)C=C1F TYIYMOAHACZAMQ-CQSZACIVSA-N 0.000 description 1
- 241000816999 Cyperus glomeratus Species 0.000 description 1
- 244000152970 Digitaria sanguinalis Species 0.000 description 1
- 235000010823 Digitaria sanguinalis Nutrition 0.000 description 1
- 244000058871 Echinochloa crus-galli Species 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 206010061217 Infestation Diseases 0.000 description 1
- 241001582888 Lobus Species 0.000 description 1
- 240000004296 Lolium perenne Species 0.000 description 1
- 235000011999 Panicum crusgalli Nutrition 0.000 description 1
- 244000292693 Poa annua Species 0.000 description 1
- 240000003461 Setaria viridis Species 0.000 description 1
- 235000002248 Setaria viridis Nutrition 0.000 description 1
- 235000010086 Setaria viridis var. viridis Nutrition 0.000 description 1
- 229940100389 Sulfonylurea Drugs 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 244000098338 Triticum aestivum Species 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 235000001014 amino acid Nutrition 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- HKPHPIREJKHECO-UHFFFAOYSA-N butachlor Chemical compound CCCCOCN(C(=O)CCl)C1=C(CC)C=CC=C1CC HKPHPIREJKHECO-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000857 drug effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 230000004136 fatty acid synthesis Effects 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 208000006278 hypochromic anemia Diseases 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000000749 insecticidal effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- XIGAUIHYSDTJHW-UHFFFAOYSA-N mefenacet Chemical compound N=1C2=CC=CC=C2SC=1OCC(=O)N(C)C1=CC=CC=C1 XIGAUIHYSDTJHW-UHFFFAOYSA-N 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 125000001820 oxy group Chemical group [*:1]O[*:2] 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- YROXIXLRRCOBKF-UHFFFAOYSA-N sulfonylurea Chemical class OC(=N)N=S(=O)=O YROXIXLRRCOBKF-UHFFFAOYSA-N 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001018 virulence Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention provides a pyrazosulfuron-ethyl, fenoxaprop-P-ethyl and penoxsulam compound dispersible oil suspension concentrate and a preparation method thereof, relating to the technical field of control of weeds in direct sowing paddy fields. The pyrazosulfuron-ethyl, fenoxaprop-P-ethyl and penoxsulam compound dispersible oil suspension concentrate is prepared from 7.5 parts of pyrazosulfuron-ethyl, 4 parts of fenoxaprop-P-ethyl, 6 parts of penoxsulam, 5 parts of fatty alcohol-polyoxyethylene ether, 8 parts of styrylphenol polyoxyethylene ether, 2 parts of xanthan gum, 1 part of sodium benzoate, 2 parts of organic silicon and 64.5 parts of solvent oil by weight. The preparation method is characterized by pumping the raw materials into a preparation kettle, mixing and stirring the raw materials, then carrying out primary milling with a colloid mill, then finely milling with a sand mill, carrying out sampling analysis, and filtering, metering, packaging and warehousing after samples are qualified. The pyrazosulfuron-ethyl, fenoxaprop-P-ethyl and penoxsulam compound dispersible oil suspension concentrate achieves better control of annual grassy weeds, cyperaceous weeds and part of broadleaf weeds in the direct sowing paddy fields, and achieves united synergy of pyrazosulfuron-ethyl, fenoxaprop-P-ethyl and penoxsulam, thus achieving obvious synergistic effects; therefore mixing pyrazosulfuron-ethyl, fenoxaprop-P-ethyl and penoxsulam to control the weeds in the direct sowing paddy fields is feasible and is also necessary.
Description
Technical field
The present invention relates to rice direct seeding field control of weeds technical field, specifically relate to a kind of pyrazosulfuron, fenoxaprop and penoxsuam is composite dispersibles oil-suspending agent and preparation method thereof.
Background technology
At present, the existing agricultural chemicals for control of weeds, such as Chinese patent " CN 103348981 A " discloses one " herbicide for paddy field that benzobicylon is composite ", wherein the first active ingredient is benzobicylon, and the second active ingredient is Acetochlor, isopropyl methoxalamine, propisochlor, the third careless amine, butachlor, mefenacet, penoxsuam, cyhalofop-butyl etc.Separately have Chinese patent " CN 103858914 A " to disclose one " herbicide composition for wheat field ", using fenoxaprop and halosulfuronmethyl as active ingredient, wherein the weight ratio of fenoxaprop and halosulfuronmethyl is 1:8 ~ 32:1.
Inventor verifies through long term test, and this above-mentioned several herbicides composition mainly exists following defect:
1), by several concrete proportioning disclosed in above-mentioned several herbicides composition test, find cannot play good control efficiency to the control of direct seading rice field annual gramineae, sedge family and part broad leaved weed (such as lady's-grass, eleusine indica, root of bidentate achyranthes chrysanthemum, kitchen garden, barnyard grass, moleplant seed and nutgrass flatsedge etc.).
2), for several formulations disclosed in above-mentioned several herbicides composition, find through verification experimental verification the defect that all there is different problem.Such as, wetting powder easily causes product to bond, not easily dispersion suspension in water, or blocking shower nozzle, the phenomenon such as reason precipitation in sprayer, causes to spray irregular, easily makes the local such as Rice Leaf produce poisoning.
3), composite problem, by several concrete proportioning disclosed in above-mentioned several herbicides composition carry out virulence test, heat storage stability test and mixture co-toxicity coefficient measure find, all cannot reach obvious synergistic effect.
Summary of the invention
An object of the present invention is to provide a kind of pyrazosulfuron, fenoxaprop and penoxsuam is composite dispersibles oil-suspending agent, this dosage form design dispersibling oil-suspending agent is reasonable, good to the control efficiency of direct seading rice field annual gramineae, sedge family and part broad leaved weed, and pyrazosulfuron, fenoxaprop can be realized and penoxsuam combination and cooperation reaches notable synergistic effect.
For achieving the above object, present invention employs following technical scheme:
A kind of pyrazosulfuron, fenoxaprop and penoxsuam is composite dispersibles oil-suspending agent, be made up of following component according to weight portion:
Pyrazosulfuron is a kind of efficient sulfonylurea optional water field herbicidal, and active ingredient can spread rapidly in water, is transmitted in plant body, the synthesis of hindered aminoacid after the root absorption of weeds.Promptly suppress the growth of weeds leaves and stems and the stretching, extension of root, then completely withered.To rice safety.Insecticidal spectrum is comparatively wide, better to control efficiency such as broad leaved weed, sedge weed, barnyard grasses.Its drug effect not temperature influence, lasting medicine, disposable employed, the multiple Weed infestation of rice growing season can be controlled.
Fenoxaprop belongs to heterocyclic oxy group phenoxy propionic acid class weed killer herbicide, mainly by suppressing key enzyme one acetyl-CoA carboxylase of fatty acid synthesis, thus inhibits the synthesis of fatty acid.Medicament is by cauline leaf Assimilation and conductivity to the growing point of meristematic tissue and root, and effect rapidly, stops growing for after dispenser 2 ~ 3 days, 5 ~ 6 days lobus cardiacus chlorosis purpling looks, meristematic tissue browning look, and blade is withered gradually, is the extremely strong cauline leaf inorganic agent of selectivity.Be mainly used in Control Wild oat, amur foxtail, green foxtail, oat, perennial ryegrass, annual bluegrass, barnyard grass, spontaneous corn, lady's-grass etc.
Penoxsuam medicine, via grass cutting blade, sheath portion or root absorption, conducts to meristematic tissue, causes weed growth to stop, yellow, then dead.Good preventive effect is had to grassy weed, nutgrass flatsedge and broadleaved herb.
Pyrazosulfuron, fenoxaprop of the present invention and penoxsuam is composite dispersibles oil-suspending agent, by the proportioning between appropriate design three, realize preventing and treating preferably to direct seading rice field annual gramineae, sedge family and part broad leaved weed (such as lady's-grass, eleusine indica, root of bidentate achyranthes chrysanthemum, kitchen garden, barnyard grass, moleplant seed and nutgrass flatsedge etc.), and the combination and cooperation realized between three reaches notable synergistic effect.Therefore, the control of three's mixture annual gramineae, sedge family and part broad leaved weed are feasible, are also necessary.
Pyrazosulfuron, fenoxaprop of the present invention and penoxsuam is composite dispersibles oil-suspending agent, its beneficial effect shows:
1), the pyrazosulfuron, fenoxaprop prepared of the present invention and the composite product dispersibling oil-suspending agent and be all obviously better than prepared by other proportionings in suspensibility, persistent foamability, wet screening test etc. and heat storage stability etc. of penoxsuam.
2), verify by experiment, pyrazosulfuron, fenoxaprop and penoxsuam with 15:8:12 proportioning mixed 17.5% composite pyrazosulfuron, fenoxaprop and penoxsuam is composite dispersibles oil-suspending agent, notable synergistic sphere of action can be played, and the preparation that other proportioning is mixed, all cannot reach notable synergistic sphere of action.Meanwhile, the actual toxicity of different ratio does not promote along with the enhancing of theoretical toxicity, there is no regular change between actual toxicity and theoretical toxicity.
Another object of the present invention is to provide a kind of pyrazosulfuron, fenoxaprop and the composite preparation method dispersibling oil-suspending agent of penoxsuam, just grind after raw material suction preparation still mix and blend through colloid mill, again through sand mill fine grinding, sample analysis, qualified rear filtration, metering, packaging, warehouse-in.
Pyrazosulfuron, fenoxaprop of the present invention and the composite preparation method dispersibling oil-suspending agent of penoxsuam, preparation technology is comparatively easy, is easy to suitability for industrialized production.
Embodiment
Below preferred embodiment of the present invention is described in further detail.
One, pyrazosulfuron, fenoxaprop and the composite preparation dispersibling oil-suspending agent of penoxsuam, and the testing result dispersibling all technical of oil-suspending agent, the heat storage stability result of the test prepared by each embodiment.
Embodiment 1
17.5% pyrazosulfuron, fenoxaprop and penoxsuam is composite dispersibles oil-suspending agent, each component and weight proportion as follows:
| Composition | Weight portion |
| Pyrazosulfuron | 7.5 |
| Fenoxaprop | 4 |
| Penoxsuam | 6 |
| Fatty alcohol-polyoxyethylene ether | 5 |
| Styrylphenol polyoxyethylene ether | 8 |
| Xanthans | 2 |
| Sodium Benzoate | 1 |
| Organosilicon | 2 |
| Solvent naphtha | 64.5 |
Preparation method: just grind after raw material suction preparation still mix and blend through colloid mill, then through sand mill fine grinding, sample analysis, qualified rear filtration, metering, packaging, warehouse-in.
Embodiment 2
17% pyrazosulfuron, fenoxaprop and penoxsuam is composite dispersibles oil-suspending agent, each component and weight proportion as follows:
| Composition | Weight portion |
| Pyrazosulfuron | 7 |
| Fenoxaprop | 4.5 |
| Penoxsuam | 5.5 |
| Fatty alcohol-polyoxyethylene ether | 5 |
| Styrylphenol polyoxyethylene ether | 8 |
| Xanthans | 2 |
| Sodium Benzoate | 1 |
| Organosilicon | 2 |
| Solvent naphtha | 65 |
Preparation method is with embodiment 1.
Embodiment 3
17.5% pyrazosulfuron, fenoxaprop and penoxsuam is composite dispersibles oil-suspending agent, each component and weight proportion as follows:
| Composition | Weight portion |
| Pyrazosulfuron | 7 |
| Fenoxaprop | 3.5 |
| Penoxsuam | 7 |
| Fatty alcohol-polyoxyethylene ether | 5 |
| Styrylphenol polyoxyethylene ether | 8 |
| Xanthans | 2 |
| Sodium Benzoate | 1 |
| Organosilicon | 2 |
| Solvent naphtha | 64.5 |
Preparation method is with embodiment 1.
Embodiment 4
18% pyrazosulfuron, fenoxaprop and penoxsuam is composite dispersibles oil-suspending agent, each component and weight proportion as follows:
| Composition | Weight portion |
| Pyrazosulfuron | 8 |
| Fenoxaprop | 5 |
| Penoxsuam | 5 |
| Fatty alcohol-polyoxyethylene ether | 5 |
| Styrylphenol polyoxyethylene ether | 8 |
| Xanthans | 2 |
| Sodium Benzoate | 1 |
| Organosilicon | 2 |
| Solvent naphtha | 64 |
Preparation method is with embodiment 1.
Embodiment 5
18% pyrazosulfuron, fenoxaprop and penoxsuam is composite dispersibles oil-suspending agent, each component and weight proportion as follows:
| Composition | Weight portion |
| Pyrazosulfuron | 8 |
| Fenoxaprop | 3.5 |
| Penoxsuam | 6.5 |
| Fatty alcohol-polyoxyethylene ether | 5 |
| Styrylphenol polyoxyethylene ether | 8 |
| Xanthans | 2 |
| Sodium Benzoate | 1 |
| Organosilicon | 2 |
| Solvent naphtha | 64 |
Preparation method is with embodiment 1.
Pyrazosulfuron, fenoxaprop prepared by embodiment 1 ~ 5 and penoxsuam is composite dispersibles oil-suspending agent, the testing result of product all technical is as shown in table 1, and product heat storage stability result of the test is as shown in table 2.
The testing result of table 15 embodiment preparing product all technicals
Table 25 embodiment preparing product heat storage stability result of the tests
Can be found out by table 1 and 2, product prepared by embodiment 1 is all obviously better than the product prepared by other embodiments in suspensibility, persistent foamability, fineness (wet screening test) etc. and heat storage stability etc.
Two, pyrazosulfuron, fenoxaprop and the composite synergy of penoxsuam measure
1., reagent agent
98% penoxsuam (penoxsulam) former medicine, former medicine portion of Anhui Meilan Agricultural Development Co., Ltd. provides.
95% fenoxaprop (fenoxaprop-P-ethyl) former medicine, former medicine portion of Anhui Meilan Agricultural Development Co., Ltd. provides.
97% pyrazosulfuron (Pyrazosulfuron-ethyl) former medicine, former medicine portion of Anhui Meilan Agricultural Development Co., Ltd. provides.
2., for examination material
Barnyard grass [Echinochloa crusgalli (L.) Beauv.]: Seed storage is collected in field, Anhui Meilan Agricultural Development Co., Ltd. laboratory.
Lady's-grass [Digitaria sanguinalis (L.) Scop.]: Seed storage is collected in field, Anhui Meilan Agricultural Development Co., Ltd. laboratory.
Monochoria vaginalis [Monochoria vaginalis (Burm.f.) Preslex Kunth]: Seed storage is collected in field, Anhui Meilan Agricultural Development Co., Ltd. laboratory.
Herba Cyperi Glomerati [Cyperus glomeratus L.]: Seed storage is collected in field, Anhui Meilan Agricultural Development Co., Ltd. laboratory.
3., synergy measures
Medicament configures: appropriate pyrazosulfuron, fenoxaprop and the former medicine of penoxsuam are used 2ml acetone solution respectively, then with 0.1% Tween-80 aseptic aqueous solution prepare drug concentration be 0.2,0.4,0.8,1.6,3.2mg/L; Be that 15:8:12,14:9:11,14:7:14,16:10:10,16:7:13 prepare 5 groups of medicaments according to the proportioning of pyrazosulfuron, fenoxaprop and penoxsuam, and establish 0.1% Tween-80 aseptic aqueous solution contrast.
Weeds process:
1), after barnyard grass seed presoaking and germinating, point is sowed at the sectional area 0.25m that earth is housed
2iron basin in, every basin broadcasts 100, is cultured to barnyard grass 1 leaf 1 heart stage to process in greenhouse.Spray liquid with the accurate laboratory spray tower of POTTER, spouting liquid, for often to process 50ml, keeps ground moistening after medicine, and establishes clear water blank.Often process repetition 4 times, within after medicine 20 days, take each process barnyard grass acrial part fresh weight, the inhibition percentage and the remaining barnyard grass that calculate each process aerial growth are the percentage contrasted, and use the synergy type to barnyard grass with Gobly method evaluation three.
The actual preventive effect of mixe herbicide calculates as follows:
E
0=A × B × C × ... N/100
(N-1)(this test is ternary built, therefore E
0=A × B × C/10000)
In formula:
A is the Weed-control effect of weed killer herbicide 1;
B is the Weed-control effect of weed killer herbicide 2;
C is the Weed-control effect of weed killer herbicide 3;
N is mixed weed killer herbicide kind quantity;
E
0for the Weed-control effect+weed killer herbicide n Weed-control effect of the Weed-control effect+weed killer herbicide 3 of the Weed-control effect+weed killer herbicide 2 of weed killer herbicide 1;
E
1for the actual preventive effect of mixe herbicide, E is observation (100-E
1).
E-E
0>10% is synergistic effect; E-E0<-10% is antagonism; E-E0 value between theoretical value ± 10% be addition.
2), after lady's-grass seed, Monochoria vaginalis seed, Herba Cyperi Glomerati seed-soaking, after vernalization, point is sowed at the sectional area 0.25m that earth is housed
2iron basin in, all the other are the same.
4., interpretation of result
1), to barnyard grass carry out synergy mensuration and carry out statistical analysis, it the results are shown in following table.
Can be found out by upper table: carry out synergy for barnyard grass, when pyrazosulfuron, fenoxaprop and penoxsuam proportioning are 15:8:12, E value (100-E
1) the highest, and belong to notable synergistic effect.
2), to lady's-grass carry out synergy mensuration and carry out statistical analysis, it the results are shown in following table.
Can be found out by upper table: carry out synergy for lady's-grass, when pyrazosulfuron, fenoxaprop and penoxsuam proportioning are 15:8:12, E value (100-E
1) the highest, and belong to notable synergistic effect.
3), to Monochoria vaginalis carry out synergy mensuration and carry out statistical analysis, it the results are shown in following table.
Can be found out by upper table: carry out synergy for Monochoria vaginalis, when pyrazosulfuron, fenoxaprop and penoxsuam proportioning are 15:8:12, E value (100-E
1) the highest, and belong to notable synergistic effect.
4), to Herba Cyperi Glomerati carry out synergy mensuration and carry out statistical analysis, it the results are shown in following table.
Can be found out by upper table: carry out synergy for Herba Cyperi Glomerati, when pyrazosulfuron, fenoxaprop and penoxsuam proportioning are 15:8:12, E value (100-E
1) the highest, and belong to notable synergistic effect.
Pyrazosulfuron, fenoxaprop of the present invention and penoxsuam is composite dispersibles oil-suspending agent, by the proportioning between appropriate design three, realize preventing and treating preferably to direct seading rice field annual gramineae, sedge family and part broad leaved weed (such as lady's-grass, eleusine indica, root of bidentate achyranthes chrysanthemum, kitchen garden, barnyard grass, moleplant seed and nutgrass flatsedge etc.), and the combination and cooperation realized between three reaches notable synergistic effect.Therefore, three's mixture control direct seading rice field annual gramineae, sedge family and part broad leaved weed are feasible, are also necessary.
Claims (2)
1. pyrazosulfuron, fenoxaprop and penoxsuam are composite dispersibles an oil-suspending agent, it is characterized in that: originally dispersible oil-suspending agent and be made up of following component according to weight portion:
2. the composite preparation method dispersibling oil-suspending agent of pyrazosulfuron, fenoxaprop and penoxsuam as claimed in claim 1, it is characterized in that: just grind after raw material suction preparation still mix and blend through colloid mill, again through sand mill fine grinding, sample analysis, qualified rear filtration, metering, packaging, warehouse-in.
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| CN107232211A (en) * | 2017-07-14 | 2017-10-10 | 安徽金农康农药检测有限公司 | A kind of penoxsuam is He metamifop compounds dispersible oil-suspending agent and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1631143A (en) * | 2004-11-04 | 2005-06-29 | 江苏溧化化学有限公司 | Superior paddy field haulm herbicide |
| WO2008071377A2 (en) * | 2006-12-11 | 2008-06-19 | Isagro S.P.A. | Herbicidal compositions |
| CN103120172A (en) * | 2013-02-04 | 2013-05-29 | 广东中迅农科股份有限公司 | Floating granule for preventing and removing weeds of paddy field |
| CN103314971A (en) * | 2013-06-19 | 2013-09-25 | 北京燕化永乐农药有限公司 | Weeding composition |
-
2014
- 2014-12-03 CN CN201410728312.4A patent/CN104430461B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1631143A (en) * | 2004-11-04 | 2005-06-29 | 江苏溧化化学有限公司 | Superior paddy field haulm herbicide |
| WO2008071377A2 (en) * | 2006-12-11 | 2008-06-19 | Isagro S.P.A. | Herbicidal compositions |
| CN103120172A (en) * | 2013-02-04 | 2013-05-29 | 广东中迅农科股份有限公司 | Floating granule for preventing and removing weeds of paddy field |
| CN103314971A (en) * | 2013-06-19 | 2013-09-25 | 北京燕化永乐农药有限公司 | Weeding composition |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107232211A (en) * | 2017-07-14 | 2017-10-10 | 安徽金农康农药检测有限公司 | A kind of penoxsuam is He metamifop compounds dispersible oil-suspending agent and preparation method thereof |
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