CN106508903B - Herbicide for paddy field and application and preparation method thereof - Google Patents
Herbicide for paddy field and application and preparation method thereof Download PDFInfo
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- CN106508903B CN106508903B CN201610944372.9A CN201610944372A CN106508903B CN 106508903 B CN106508903 B CN 106508903B CN 201610944372 A CN201610944372 A CN 201610944372A CN 106508903 B CN106508903 B CN 106508903B
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- herbicide
- pretilachlor
- paddy field
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- 230000002363 herbicidal effect Effects 0.000 title claims abstract description 67
- 239000004009 herbicide Substances 0.000 title claims abstract description 54
- 238000002360 preparation method Methods 0.000 title abstract description 17
- 239000004480 active ingredient Substances 0.000 claims abstract description 44
- 239000002904 solvent Substances 0.000 claims abstract description 26
- 241000196324 Embryophyta Species 0.000 claims abstract description 23
- 238000009333 weeding Methods 0.000 claims abstract description 23
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 21
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 21
- TVFWYUWNQVRQRG-UHFFFAOYSA-N 2,3,4-tris(2-phenylethenyl)phenol Chemical compound C=1C=CC=CC=1C=CC1=C(C=CC=2C=CC=CC=2)C(O)=CC=C1C=CC1=CC=CC=C1 TVFWYUWNQVRQRG-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 18
- OOCMUZJPDXYRFD-UHFFFAOYSA-L calcium;2-dodecylbenzenesulfonate Chemical group [Ca+2].CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O.CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O OOCMUZJPDXYRFD-UHFFFAOYSA-L 0.000 claims abstract description 17
- 239000000945 filler Substances 0.000 claims abstract description 13
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 11
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 11
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 7
- 229920000591 gum Polymers 0.000 claims abstract description 7
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 7
- YLPGTOIOYRQOHV-UHFFFAOYSA-N Pretilachlor Chemical compound CCCOCCN(C(=O)CCl)C1=C(CC)C=CC=C1CC YLPGTOIOYRQOHV-UHFFFAOYSA-N 0.000 claims description 41
- 238000003756 stirring Methods 0.000 claims description 37
- 235000007164 Oryza sativa Nutrition 0.000 claims description 22
- 235000009566 rice Nutrition 0.000 claims description 22
- CHNUNORXWHYHNE-UHFFFAOYSA-N Oxadiazon Chemical compound C1=C(Cl)C(OC(C)C)=CC(N2C(OC(=N2)C(C)(C)C)=O)=C1Cl CHNUNORXWHYHNE-UHFFFAOYSA-N 0.000 claims description 20
- 239000005588 Oxadiazon Substances 0.000 claims description 18
- NXQDBZGWYSEGFL-UHFFFAOYSA-N Anilofos Chemical compound COP(=S)(OC)SCC(=O)N(C(C)C)C1=CC=C(Cl)C=C1 NXQDBZGWYSEGFL-UHFFFAOYSA-N 0.000 claims description 15
- MGLWZSOBALDPEK-UHFFFAOYSA-N simetryn Chemical compound CCNC1=NC(NCC)=NC(SC)=N1 MGLWZSOBALDPEK-UHFFFAOYSA-N 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 14
- OQMBBFQZGJFLBU-UHFFFAOYSA-N Oxyfluorfen Chemical compound C1=C([N+]([O-])=O)C(OCC)=CC(OC=2C(=CC(=CC=2)C(F)(F)F)Cl)=C1 OQMBBFQZGJFLBU-UHFFFAOYSA-N 0.000 claims description 13
- DVOODWOZJVJKQR-UHFFFAOYSA-N 5-tert-butyl-3-(2,4-dichloro-5-prop-2-ynoxyphenyl)-1,3,4-oxadiazol-2-one Chemical group O=C1OC(C(C)(C)C)=NN1C1=CC(OCC#C)=C(Cl)C=C1Cl DVOODWOZJVJKQR-UHFFFAOYSA-N 0.000 claims description 12
- 239000005590 Oxyfluorfen Substances 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 11
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 5
- KLIIGADLHUOXPS-UHFFFAOYSA-N 2-(1,2,2-triphenylethenyl)phenol Chemical compound OC1=CC=CC=C1C(C=1C=CC=CC=1)=C(C=1C=CC=CC=1)C1=CC=CC=C1 KLIIGADLHUOXPS-UHFFFAOYSA-N 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 239000004615 ingredient Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 48
- 230000000694 effects Effects 0.000 abstract description 23
- 238000009472 formulation Methods 0.000 abstract description 6
- 238000009792 diffusion process Methods 0.000 abstract description 4
- 238000004945 emulsification Methods 0.000 abstract description 4
- 241000209094 Oryza Species 0.000 description 21
- 239000000126 substance Substances 0.000 description 15
- 238000010438 heat treatment Methods 0.000 description 10
- 239000000047 product Substances 0.000 description 9
- 239000003814 drug Substances 0.000 description 7
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000002552 dosage form Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 230000002195 synergetic effect Effects 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 235000013339 cereals Nutrition 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000004562 water dispersible granule Substances 0.000 description 2
- 239000004563 wettable powder Substances 0.000 description 2
- KEQXNNJHMWSZHK-UHFFFAOYSA-L 1,3,2,4$l^{2}-dioxathiaplumbetane 2,2-dioxide Chemical compound [Pb+2].[O-]S([O-])(=O)=O KEQXNNJHMWSZHK-UHFFFAOYSA-L 0.000 description 1
- -1 2, 4-dichloro-5- (prop-2-ynyloxy) phenyl Chemical group 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000004530 micro-emulsion Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/34—Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
- A01N25/10—Macromolecular compounds
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/30—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests characterised by the surfactants
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
- A01N33/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds containing nitrogen-to-oxygen bonds
- A01N33/18—Nitro compounds
- A01N33/20—Nitro compounds containing oxygen or sulfur attached to the carbon skeleton containing the nitro group
- A01N33/22—Nitro compounds containing oxygen or sulfur attached to the carbon skeleton containing the nitro group having at least one oxygen or sulfur atom and at least one nitro group directly attached to the same aromatic ring system
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
- A01N37/22—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof the nitrogen atom being directly attached to an aromatic ring system, e.g. anilides
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/66—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms
- A01N43/68—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms with two or three nitrogen atoms directly attached to ring carbon atoms
- A01N43/70—Diamino—1,3,5—triazines with only one oxygen, sulfur or halogen atom or only one cyano, thiocyano (—SCN), cyanato (—OCN) or azido (—N3) group directly attached to a ring carbon atom
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/82—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with three ring hetero atoms
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
- A01N57/10—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds
- A01N57/14—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds containing aromatic radicals
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Agronomy & Crop Science (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to the technical field of herbicides, and in particular relates to a paddy field herbicide and an application and a preparation method thereof. The paddy field herbicide comprises a weeding active ingredient, a solvent, an emulsifier and a filler; the emulsifier is calcium dodecyl benzene sulfonate and/or tristyrylphenol polyoxyethylene ether; the filler is one or more of tristyrylphenol polyoxyethylene ether, polyvinyl alcohol, gum or polyethylene glycol. The herbicide prepared by the invention is wax, is a novel formulation, can be directly thrown into a paddy field when in use, and is uniformly distributed in the paddy field through self emulsification and diffusion, thereby playing a role in weeding. Has the advantages of convenient use, labor saving and time saving. Compared with other formulations, the herbicide prepared by the invention can obviously improve the weeding effect of the active ingredients, and can be used for preventing and killing annual gramineous weeds and broadleaf weeds in paddy fields.
Description
Technical Field
The invention relates to the technical field of herbicides, and in particular relates to a paddy field herbicide and an application and a preparation method thereof.
Background
The rice is not only the most important grain crop in China, but also one of the main grain crops in the world. Nearly half of the world's population, including almost the entire east and southeast asia, feeds on rice. Production is throughout continents other than the south pole. In the late part of the last century, the annual output of the rice in the world is about 4000 hundred million kilograms on average, and the planting area is about 1.45 hundred million hectares. The rice seeding area of China accounts for 1/4 of national grain crops, about 3500 more than ten thousand hectares per year, and the yield accounts for more than half. No matter the planting area and the yield, the rice is the top in food crops in China.
Weeding is a main task in the production management process of rice. Weeds and rice compete for fertilizer, the growth of the rice is seriously influenced, and the yield of the rice is reduced. Moderate vegetation areas account for over 46% of the total planted area, with severe areas over 11.5%, thereby losing over 200 billion kilograms of grain per year. Therefore, the using proportion of the herbicide in the domestic paddy field almost reaches 100 percent, and the dosage of the herbicide is very large. With the development of agricultural science and technology, the popularization and application of chemical herbicides have been one of powerful yield increasing measures for saving labor, time and cost.
With the rapid development of herbicides, the appearance of numerous new species creates a wide variety of new formulations. There are more than 10 processed dosage forms for an average of raw medicine. The dosage form is classified into a solid preparation and a liquid preparation according to the state of the preparation; can be divided into missible oil, suspending agent, aqueous emulsion (concentrated emulsion), microemulsion, wettable powder, water dispersible granule and the like according to the formulation types.
In actual production management, the herbicide is mainly applied by manual spraying with a sprayer. As the labor cost is higher and higher, most of the labor force in rural areas enters city business, so that the application of the rice herbicide is more and more difficult. A new dosage form that can be easily administered is urgently needed.
Disclosure of Invention
In view of the above, the invention provides a paddy field herbicide and an application and a preparation method thereof. The herbicide for the paddy field is a wax, is a novel dosage form, can be directly thrown into the paddy field when in use, and is uniformly distributed in the paddy field through self emulsification and diffusion, thereby playing a role in weeding. Has the advantages of convenient use, labor saving and time saving.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a paddy field herbicide, which comprises a weeding active ingredient, a solvent, an emulsifier and a filler;
the emulsifier is calcium dodecyl benzene sulfonate and/or tristyrylphenol polyoxyethylene ether;
the filler is one or more of tristyrylphenol polyoxyethylene ether, polyvinyl alcohol, gum or polyethylene glycol.
The herbicide prepared by the invention is wax-like substance, is a novel dosage form, is solid at the temperature below 60 ℃, and is liquid at the temperature above 60 ℃. When in use, the weeding composition can be directly thrown into a rice field and is uniformly distributed in the rice field through self emulsification and diffusion, thereby playing a role in weeding. Has the advantages of convenient use, labor saving and time saving. Meanwhile, compared with other formulations, the herbicide can remarkably improve the weeding effect of the active ingredients, and can be used for preventing and removing annual gramineous weeds and broadleaf weeds in paddy fields.
Preferably, the emulsifier is a composition consisting of calcium dodecylbenzene sulfonate and tristyrylphenol polyoxyethylene ether.
Preferably, the emulsifier is calcium dodecylbenzenesulfonate.
Preferably, the filler is polyethylene glycol or tristyrylphenol polyoxyethylene ether.
Preferably, the paddy field herbicide comprises the following components in percentage by weight: 1-30% of weeding active ingredient, 1-10% of solvent, 1-15% of emulsifier and the balance of filler.
Preferably, the paddy field herbicide comprises the following components in percentage by weight: 7-25% of weeding active ingredient, 5-8% of solvent, 5-10% of emulsifier and the balance of filler.
In the embodiment provided by the invention, the weeding active ingredients comprise an active ingredient A and an active ingredient B, wherein the active ingredient A is pretilachlor, and the active ingredient B is one or more of oxyfluorfen, oxadiazon, simetryn, anilofos and oxadiargyl. However, the present invention is not limited thereto, and the art-recognized herbicidal active ingredients for paddy fields are within the scope of the present invention.
The structure and properties of the herbicidal active ingredients to which the present invention relates are as follows:
pretilachlor, common english name: pretilachlor, chemical name: n- (2, 6-diethylphenyl) -N- (propoxyethyl) -chloroacetamide, formula: c17H26ClNO2Molecular weight: 311.85, the structural formula is shown in formula I. Physical and chemical properties: the character is colorless liquid, density (g/mL, 25 ℃): 1.076. boiling point: 135 ℃ is adopted. Vapor pressure (kPa, 25 ℃): 0.133X 10-3。
Oxyfluorfen, common english name: oxyfluorfen, chemical name: 2-chloro-4-trifluoromethylphenyl-3 '-ethoxy-4' -nitrophenyl ether, CA accession no: 42874-03-3, molecular formula: c15H11CIF3NO4Molecular weight: 361.7, the structural formula is shown in formula II. Physical and chemical properties: the pure product is colorless crystalline solid. The commercial product is a red to yellow solid. Solubility (25 ℃): 0.1 mg/L of water, 725 g/kg of acetone, 550 g/kg of chloroform and 615 g/kg of cyclohexanone. Decomposing at 240 deg.C or above, and decomposing the water suspension under ultraviolet light.
Oxadiazon, english name: oxadizazon, chemical name: 5-tert-butyl-3- (2, 4-dichloro-5-isopropoxyphenyl) -1,3, 4-oxadiazolin-2-one, CAS No.: 19666-30-9, formula: c15H18Cl2N2O3Molecular weight: 345.221, the structural formula is shown in formula III. Physical and chemical properties: the characteristics are as follows: white crystal, no bad smell and no moisture absorption. Melting Point (. degree. C.): 88-90. Vapor pressure (kPa, 25 ℃): 1.33X 10-3。
Simetryn, common english name: simetryn, chemical name: 2-methylsulfanyl-4, 6-bis (ethylamino) -1,3, 5-triazine, CA accession no: 1014-70-6, molecular formula C8H15N5S, the molecular weight is 213.3032, and the structural formula is shown in formula IV. Physical and chemical properties: the pure product is white crystal. The melting point is 81-82.5 ℃, and the vapor pressure at 20 ℃ is 94.7 mu Pa. The solubility in water at 22 ℃ is 450ppm, and the product is easily dissolved in methanol, ethanol and chloroform.
Anilofos, common name in english: anilofos, chemical name: o, O-dimethyl-S-4-chloro-N-isopropylphenylcarbamoylMonomethyl dithiophosphate, CA accession no: 64249-01-0, formula: c13H19ClNO3PS2Molecular weight: 367.8, the structural formula is shown in formula V. Physical and chemical properties: the original drug is white or milk white powder with the content of 96 percent, the density of 1.4(20 ℃), the melting point of 47-50 ℃ and the vapor pressure of 2.2mPa (60 ℃). Solubility in water at 20 ℃ of 13.6 mg/l; the solubility in each solvent was: acetone, chloroform and toluene in 1000 g/L, benzene, ethanol, ethyl acetate and dichloromethane in 200 g/L, and hexane in 12 g/L. Decomposed at 150 ℃, is not sensitive to light, is stable at the pH of 5-9 and 22 ℃, and has a half-life period of 30-45 days (23 ℃) in soil.
Oxadiargyl, english name: oxadiargyl, chemical name: 5-tert-butyl-3- (2, 4-dichloro-5- (prop-2-ynyloxy) phenyl) -1,3, 4-f-oxadiazol-2 (3H) -one, CAS No.: 39807-15-3, formula: c15H14Cl2N2O3Molecular weight: 341.2, the structural formula is shown in formula VI. Physical and chemical properties: the pure product is white or beige powder, and the flash point is as follows: 213.6 ℃. Boiling point: 429.6 ℃ at 760 mmHg.
In the embodiment provided by the invention, the mass ratio of the active ingredient A to the active ingredient B is (1-50): (1-50).
In one embodiment of the invention, the active ingredient A is pretilachlor and the active ingredient B is oxadiargyl. The mass ratio of pretilachlor to oxadiargyl is 50: 1.
In another embodiment provided by the present invention, active ingredient a is pretilachlor and active ingredient B is anilofos. The mass ratio of pretilachlor to anilofos is 1: 50.
In another embodiment provided by the invention, the active ingredient A is pretilachlor, and the active ingredient B is oxyfluorfen and oxadiazon. The mass ratio of pretilachlor to oxyfluorfen to oxadiazon is 8:5: 4.
In another embodiment provided by the present invention, active ingredient a is pretilachlor and active ingredient B is simetryn. The mass ratio of pretilachlor to simetryn is 2.5: 1.
In another embodiment provided by the present invention, active ingredient a is pretilachlor and active ingredient B is oxadiazon. The mass ratio of pretilachlor to oxadiazon is 1: 1.
In the examples provided herein, the solvent is mineral spirits No. 150. However, the present invention is not limited thereto, and any solvent recognized in the art is within the scope of the present invention.
The invention also provides application of the paddy field herbicide in preventing and removing annual gramineous weeds and/or broadleaf weeds in paddy fields.
The invention also provides a preparation method of the rice field herbicide, which comprises the following steps: and (3) carrying out first stirring on the weeding active ingredients and the solvent, adding the emulsifier for second stirring, and then adding the filler for third stirring to obtain the paddy field herbicide.
Preferably, the temperature of the first stirring is 80-90 ℃ and the time is 20-40 min.
In the examples provided by the present invention, the temperature of the first stirring was 80 ℃ for 30 min.
Preferably, the temperature of the second stirring is 10-30 ℃ and the time is 10-30 min.
In the examples provided by the present invention, the temperature of the second stirring was room temperature and the time was 20 min.
Preferably, the temperature of the third stirring is 80-100 ℃ and the time is 10-30 min.
In the examples provided by the present invention, the temperature of the third stirring was 90 ℃ for 20 min.
In the embodiment provided by the invention, the step of reducing the temperature is further included after the third stirring.
Preferably, the temperature reduction is natural temperature reduction.
The invention provides a paddy field herbicide and an application and a preparation method thereof. The paddy field herbicide comprises a weeding active ingredient, a solvent, an emulsifier and a filler; the emulsifier is calcium dodecyl benzene sulfonate and/or tristyrylphenol polyoxyethylene ether; the filler is one or more of tristyrylphenol polyoxyethylene ether, polyvinyl alcohol, gum or polyethylene glycol. The invention has one of the following beneficial effects:
1. the herbicide prepared by the invention is wax-like substance, is a novel dosage form, is solid at the temperature below 60 ℃, and is liquid at the temperature above 60 ℃. When in use, the weeding composition can be directly thrown into a rice field and is uniformly distributed in the rice field through self emulsification and diffusion, thereby playing a role in weeding. Has the advantages of convenient use, labor saving and time saving.
2. Compared with other formulations, the herbicide prepared by the invention can obviously improve the weeding effect of the active ingredients, and can be used for preventing and killing annual gramineous weeds and broadleaf weeds in paddy fields.
Detailed Description
The invention discloses a paddy field herbicide and an application and a preparation method thereof, and a person skilled in the art can realize the herbicide by properly improving process parameters by referring to the content. It is expressly intended that all such similar substitutes and modifications which would be obvious to one skilled in the art are deemed to be included in the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.
The paddy field herbicide and the application and the preparation method thereof provided by the invention can be purchased from the market as raw material medicines or auxiliary materials.
The invention is further illustrated by the following examples:
example 1
The active ingredient of the composition of the embodiment consists of A, B two components, wherein A is pretilachlor, B is oxadiargyl, and the content of the active ingredient of the herbicide is 25.5 percent.
The composition comprises the following components in percentage by weight: 25.0 percent of pretilachlor, 0.5 percent of oxadiargyl, 5.0 percent of No. 150 solvent oil, 5.0 percent of calcium dodecyl benzene sulfonate, 5.0 percent of triphenylvinyl phenol polyoxyethylene ether and 59.5 percent of polyvinyl alcohol.
The preparation method comprises the following steps and conditions:
(1) according to the proportion of the raw materials, the component A, B and the solvent oil are added into a stirring kettle to be fully stirred for 30 minutes, and heating is carried out during stirring;
(2) adding the emulsifier after the mixture is uniformly dissolved, and continuously stirring for 20 minutes;
(3) adding polyvinyl alcohol, heating to 90 deg.C while stirring, and holding for 20 min.
(4) And pouring the materials into a metal container, and naturally cooling. Thus, the desired product was obtained in the form of a solid wax.
The prepared herbicide is detected according to various indexes, and the detection result is as follows:
TABLE 1 herbicide Property index test results
Example 2
The active ingredient of the composition of the example consists of A, B two components, A is pretilachlor, B is anilofos, and the active ingredient content of the herbicide composition is 12.75 percent.
The composition comprises the following components in percentage by weight: 0.25% of pretilachlor, 12.5% of anilofos, 5.0% of No. 150 solvent oil, 5.0% of calcium dodecyl benzene sulfonate, 5.0% of tristyrylphenol polyoxyethylene ether and 72.25% of gum.
The preparation method comprises the following steps and conditions:
(1) according to the proportion of the raw materials, the component A, B and the solvent oil are added into a stirring kettle to be fully stirred for 30 minutes, and heating is carried out during stirring;
(2) adding the emulsifier after the mixture is uniformly dissolved, and continuously stirring for 20 minutes;
(3) adding gum, heating to 90 deg.C while stirring, and keeping the temperature for 20 min;
(4) and pouring the materials into a metal container, and naturally cooling. Thus, the desired product was obtained in the form of a solid wax.
The prepared herbicide is detected according to various indexes, and the detection result is as follows:
TABLE 2 herbicide Property index test results
Example 3
The active ingredients of the composition of the embodiment comprise A, B, A is pretilachlor, B is oxyfluorfen and oxadiazon, and the content of the active ingredients of the herbicide composition is 17.0%.
The composition comprises the following components in percentage by weight: 8.0 percent of pretilachlor, 5.0 percent of oxyfluorfen, 4.0 percent of oxadiazon, 8.0 percent of anilofos No. 150 solvent oil, 5.0 percent of calcium dodecyl benzene sulfonate, 5.0 percent of tristyrylphenol polyoxyethylene ether and 65.0 percent of polyethylene glycol.
The preparation method comprises the following steps and conditions:
(1) according to the proportion of the raw materials, the component A, B and the solvent oil are added into a stirring kettle to be fully stirred for 30 minutes, and heating is carried out during stirring;
(2) adding the emulsifier after the mixture is uniformly dissolved, and continuously stirring for 20 minutes;
(3) adding polyethylene glycol, heating to 90 deg.C while stirring, and maintaining the temperature for 20 min;
(4) and pouring the materials into a metal container, and naturally cooling. Thus, the desired product was obtained in the form of a solid wax.
The prepared herbicide is detected according to various indexes, and the detection result is as follows:
TABLE 3 herbicide Property index test results
Example 4
The active ingredient of the composition of the embodiment consists of A, B components, wherein A is pretilachlor, B is simetryn, and the content of the active ingredient of the herbicide composition is 7.0 percent.
The composition comprises the following components in percentage by weight: 5.0 percent of pretilachlor, 2.0 percent of simetryn, 8.0 percent of No. 150 solvent oil, 5.0 percent of calcium dodecyl benzene sulfonate and 80.0 percent of tristyrylphenol polyoxyethylene ether.
The preparation method comprises the following steps and conditions:
(1) according to the proportion of the raw materials, the component A, B and the solvent oil are added into a stirring kettle to be fully stirred for 30 minutes, and heating is carried out during stirring;
(2) stirring uniformly, adding calcium dodecyl benzene sulfonate, and continuing stirring for 20 minutes;
(3) adding tristyrylphenol polyoxyethylene ether, heating to 90 deg.C while stirring, and maintaining the temperature for 20 min.
(4) And pouring the materials into a metal container, and naturally cooling. Thus, the desired product was obtained in the form of a solid wax.
The prepared herbicide is detected according to various indexes, and the detection result is as follows:
TABLE 4 herbicide Property index test results
Example 5
The active ingredient of the composition of the embodiment consists of A, B components, wherein A is pretilachlor, B is oxadiazon, and the content of the active ingredient of the herbicide composition is 15.0 percent.
The composition comprises the following components in percentage by weight: 7.5 percent of pretilachlor, 7.5 percent of oxadiazon, 8.0 percent of No. 150 solvent oil, 5.0 percent of calcium dodecyl benzene sulfonate, 5.0 percent of tristyrylphenol polyoxyethylene ether and 67.0 percent of polyethylene glycol.
The preparation method comprises the following steps and conditions:
(1) according to the proportion of the raw materials, the component A, B and the solvent oil are added into a stirring kettle to be fully stirred for 30 minutes, and heating is carried out during stirring;
(2) adding the emulsifier after the mixture is uniformly dissolved, and continuously stirring for 20 minutes;
(3) adding polyethylene glycol, heating to 90 deg.C while stirring, and maintaining the temperature for 20 min;
(4) and pouring the materials into a metal container, and naturally cooling. Thus, the desired product was obtained in the form of a solid wax.
The prepared herbicide is detected according to various indexes, and the detection result is as follows:
TABLE 5 herbicide Property index test results
Application test example 1
Test site: test fields of Changchun city, Jilin province;
crop: rice;
the using method comprises the following steps: soil sealing, specifically, directly throwing an effective amount of the medicament prepared in the example 1 into a paddy field;
test area: the treatment is carried out for every 100 square meters and the treatment is repeated for three times.
The purpose is as follows: the herbicidal efficacy of the agent of the present invention against annual weeds in paddy fields was examined.
The test results are shown in Table 6.
TABLE 6 herbicidal efficacy of the herbicidal compositions of the present invention against annual weeds in paddy fields
Application test example 2
Test site: test fields of Changchun city, Jilin province;
crop: rice;
the using method comprises the following steps: soil sealing, specifically, directly throwing an effective amount of the medicament prepared in example 2 into a paddy field;
test area: the treatment is carried out for every 100 square meters and the treatment is repeated for three times.
The purpose is as follows: the herbicidal efficacy of the agent of the present invention against annual weeds in paddy fields was examined.
And (3) test results: see table 7.
TABLE 7 herbicidal efficacy of the herbicidal compositions of the present invention against annual weeds in paddy fields
Application test example 3
Test site: test fields of Changchun city, Jilin province;
crop: rice;
the using method comprises the following steps: soil sealing, specifically, directly throwing an effective amount of the medicament prepared in example 3 into a paddy field;
test area: the treatment is carried out for every 100 square meters and the treatment is repeated for three times.
The purpose is as follows: the herbicidal efficacy of the agent of the present invention against annual weeds in paddy fields was examined.
And (3) test results: see table 8.
TABLE 8 herbicidal efficacy of the herbicidal compositions of the present invention against annual weeds in paddy fields
Application test example 4
Test site: test fields of Changchun city, Jilin province;
crop: rice;
the using method comprises the following steps: soil sealing, specifically, directly throwing an effective amount of the medicament prepared in example 4 into a paddy field;
test area: the treatment is carried out for every 100 square meters and the treatment is repeated for three times.
The purpose is as follows: the herbicidal efficacy of the agent of the present invention against annual weeds in paddy fields was examined.
And (3) test results: see table 9.
TABLE 9 herbicidal efficacy of the herbicidal compositions of the present invention against annual weeds in paddy fields
Application test example 5
Test site: test fields of Changchun city, Jilin province;
crop: rice;
the using method comprises the following steps: soil sealing, specifically, directly throwing an effective amount of the agent prepared in example 5 into a paddy field;
test area: the treatment is carried out for every 100 square meters and the treatment is repeated for three times.
The purpose is as follows: the herbicidal efficacy of the agent of the present invention against annual weeds in paddy fields was examined.
And (3) test results: see table 10.
TABLE 10 herbicidal efficacy of the herbicidal compositions of the present invention against annual weeds in paddy fields
From application test example 1, it can be seen that the one-component pretilachlor and oxadiargyl wax-like composition has the comprehensive control effect of 34.5% and the comprehensive control effect of 19.6% in the closed weeding of a paddy field. The comprehensive control effect of the pretilachlor and oxadiargyl water dispersible granules is 68.9 percent, the comprehensive control effect of the composition is 78.2-90.0 percent, and the synergistic effect is very obvious. Meanwhile, the waxy composition is very convenient to apply, and labor and time are saved.
As seen from application test example 2, the one-component pretilachlor and anilofos wax-like composition has 8.0 percent of comprehensive control effect and 29.6 percent of comprehensive control effect of anilofos when the paddy field is closed to weed. The comprehensive control effect of the missible oil of pretilachlor and anilofos is 51.0 percent. The comprehensive control effect of the composition is 61.2-83.5%, and the synergistic effect is very obvious. Meanwhile, the waxy composition is very convenient to apply, and labor and time are saved.
From the application test example 3, it is seen that the single-component pretilachlor, oxyfluorfen and oxadiazon waxy composition has the comprehensive control effect of 44.5 percent, the comprehensive control effect of the oxyfluorfen of 34.4 percent and the comprehensive control effect of the oxadiazon of 41.8 percent when the rice fields are subjected to closed weeding. The comprehensive control effect of pretilachlor, oxyfluorfen and oxadiazon missible oil is 77.7 percent. The comprehensive control effect of the composition is 88.7-99.4%, and the synergistic effect is very obvious. Meanwhile, the waxy composition is very convenient to apply, and labor and time are saved.
As seen from application test example 4, the waxy composition of pretilachlor and simetryn has the comprehensive control effect of 38.3 percent of single-component pretilachlor and 39.7 percent of simetryn when the paddy field is closed to weed. The comprehensive control effect of the pretilachlor and the simetryn wettable powder is 59.8%. The comprehensive control effect of the composition is 78.5-90.0%, and the synergistic effect is very obvious. Meanwhile, the waxy composition is very convenient to apply, and labor and time are saved.
From the application test example 5, the pretilachlor and oxadiazon waxy composition has the comprehensive control effect of 45.9 percent of single-component pretilachlor and 44.7 percent of simetryn when the paddy field is subjected to closed weeding. The comprehensive control effect of the pretilachlor and the oxadiazon missible oil is 72.7 percent. The comprehensive control effect of the composition is 78.2-99.7%, and the synergistic effect is very obvious. Meanwhile, the waxy composition is very convenient to apply, and labor and time are saved.
Therefore, the control effect of the wax bulk herbicide composition is obviously improved, and the synergy is obvious. Meanwhile, water spraying is not needed during application, and the fertilizer can be directly spread, so that the fertilizer is very convenient to use, and labor and time are saved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A paddy field herbicide is characterized by comprising an active weeding ingredient, a solvent, an emulsifier and a filler;
the emulsifier is calcium dodecyl benzene sulfonate and/or tristyrylphenol polyoxyethylene ether;
the filler is one or more of tristyrylphenol polyoxyethylene ether, polyvinyl alcohol, gum or polyethylene glycol;
the weeding active ingredients comprise an active ingredient A and an active ingredient B, the active ingredient A is pretilachlor, and the active ingredient B is one or more of oxyfluorfen, oxadiazon, simetryn, anilofos and oxadiargyl;
the formula of the paddy field herbicide comprises:
25.0 percent of pretilachlor, 0.5 percent of oxadiargyl, 5.0 percent of No. 150 solvent oil, 5.0 percent of calcium dodecyl benzene sulfonate, 5.0 percent of triphenylvinyl phenol polyoxyethylene ether and 59.5 percent of polyvinyl alcohol;
0.25% of pretilachlor, 12.5% of anilofos, 5.0% of No. 150 solvent oil, 5.0% of calcium dodecyl benzene sulfonate, 5.0% of tristyrylphenol polyoxyethylene ether and 72.25% of gum;
8.0 percent of pretilachlor, 5.0 percent of oxyfluorfen, 4.0 percent of oxadiazon, 8.0 percent of anilofos No. 150 solvent oil, 5.0 percent of calcium dodecyl benzene sulfonate, 5.0 percent of tristyrylphenol polyoxyethylene ether and 65.0 percent of polyethylene glycol;
5.0 percent of pretilachlor, 2.0 percent of simetryn, 8.0 percent of No. 150 solvent oil, 5.0 percent of calcium dodecyl benzene sulfonate and 80.0 percent of tristyrylphenol polyoxyethylene ether;
7.5% of pretilachlor, 7.5% of oxadiazon, 8.0% of No. 150 solvent oil, 5.0% of calcium dodecyl benzene sulfonate, 5.0% of tristyrylphenol polyoxyethylene ether and 67.0% of polyethylene glycol;
the herbicide for paddy fields is in a solid and waxy state.
2. Use of the herbicide for paddy field according to claim 1 for controlling annual gramineous weeds and/or broadleaf weeds in paddy fields.
3. The method for preparing a herbicide for rice fields according to claim 1, comprising: and (3) carrying out first stirring on the weeding active ingredients and the solvent, adding the emulsifier for second stirring, and then adding the filler for third stirring to obtain the paddy field herbicide.
4. The method according to claim 3, wherein the first stirring is carried out at a temperature of 80 to 90 ℃ for 20 to 40 min.
5. The method according to claim 3, wherein the second stirring is carried out at a temperature of 10 to 30 ℃ for 10 to 30 min.
6. The method according to any one of claims 3 to 5, wherein the third stirring is carried out at a temperature of 80 to 100 ℃ for 10 to 30 min.
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| CN102845425A (en) * | 2011-06-30 | 2013-01-02 | 浙江天丰化学有限公司 | Herbicide for paddy field |
| CN105432629A (en) * | 2015-12-24 | 2016-03-30 | 安徽美兰农业发展股份有限公司 | Oxadiargyl and oxadiazon compound missible oil and preparation method thereof |
| CN105475300A (en) * | 2015-12-24 | 2016-04-13 | 安徽美兰农业发展股份有限公司 | Compound missible oil containing oxadiazon and simetryne and preparation method thereof |
| CN105475273A (en) * | 2015-12-24 | 2016-04-13 | 安徽美兰农业发展股份有限公司 | Compound missible oil containing oxadiargyl, oxyfluorfen and pretilachlor and preparation method thereof |
| CN105494361A (en) * | 2015-12-24 | 2016-04-20 | 安徽美兰农业发展股份有限公司 | Simetryn, oxyfluorfen and butachlor complex missible oil and preparation method thereof |
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| CN102845425A (en) * | 2011-06-30 | 2013-01-02 | 浙江天丰化学有限公司 | Herbicide for paddy field |
| CN105432629A (en) * | 2015-12-24 | 2016-03-30 | 安徽美兰农业发展股份有限公司 | Oxadiargyl and oxadiazon compound missible oil and preparation method thereof |
| CN105475300A (en) * | 2015-12-24 | 2016-04-13 | 安徽美兰农业发展股份有限公司 | Compound missible oil containing oxadiazon and simetryne and preparation method thereof |
| CN105475273A (en) * | 2015-12-24 | 2016-04-13 | 安徽美兰农业发展股份有限公司 | Compound missible oil containing oxadiargyl, oxyfluorfen and pretilachlor and preparation method thereof |
| CN105494361A (en) * | 2015-12-24 | 2016-04-20 | 安徽美兰农业发展股份有限公司 | Simetryn, oxyfluorfen and butachlor complex missible oil and preparation method thereof |
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