Weeding composition containing ethanone,1-[3-(trifluoromethyl)phenyl]-o-[2,6-bis[(4,6-dimethoxy-2-pyrimidinyl)oxy]benzoyl]oxime and cyhalofop-butyl

The technology of a herbicidal composition and acifluorfen, which is applied in the direction of herbicides, algicides, biocides, animal repellents, etc., can solve the problems of high weeding costs and incomplete weeding, and reduce production costs , the effect is improved, and the effect of expanding the spectrum of weed killing

Inactive Publication Date: 2018-09-04
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The weeding with a single preparation is not thorough, and often requires two or even three times of application, and the cost of weeding is relatively high

Method used

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  • Weeding composition containing ethanone,1-[3-(trifluoromethyl)phenyl]-o-[2,6-bis[(4,6-dimethoxy-2-pyrimidinyl)oxy]benzoyl]oxime and cyhalofop-butyl
  • Weeding composition containing ethanone,1-[3-(trifluoromethyl)phenyl]-o-[2,6-bis[(4,6-dimethoxy-2-pyrimidinyl)oxy]benzoyl]oxime and cyhalofop-butyl
  • Weeding composition containing ethanone,1-[3-(trifluoromethyl)phenyl]-o-[2,6-bis[(4,6-dimethoxy-2-pyrimidinyl)oxy]benzoyl]oxime and cyhalofop-butyl

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1. Test materials: Echinochloa crusgalli, Leptochloa chinensis, Monochora vaginalis, Ammannia baccifera, and Ludwigiaprostrata.

[0028] 2. Test drug and preparation:

[0029] Weigh a certain quality of acifluorfen and cyhalofop-ethyl with an analytical balance, dissolve and prepare a small preparation of 1.0-5.0% emulsifiable concentrate with a solvent (acetone, DMF or DMSO, etc.), and then use 0.1 -0.25% TW-80 distilled water diluted to a certain concentration gradient.

[0030] Select representative sensitive weed seeds according to the single-agent weeding spectrum, cultivate to 3 leaves, and reserve, after the weed stems and leaves of the selection numbers are processed, they are placed in the light incubator and cultivated at room temperature for 20 days, and the control effect (fresh weight) is calculated. ).

[0031] Investigation method: test treatment for 20 days, visually evaluate the degree of influence of the agent on plant growth inhibition, deformity, y...

Embodiment 2

[0052] 25% Acifluorfen-Cyhalofop-methyl Suspension Concentrate: Acifluorfen 5%, Cyhalofop-20%, Nonylphenol Ethoxylate 4%, Nonylphenol Ethoxylate 4%, Sodium lauryl sulfate 3%, bentonite 3%, xanthan gum 0.3%, propylene glycol 6%, silicone defoamer 0.3%, deionized water supplemented to 100%.

[0053] The above formula is pre-crushed according to the proportion, then added to a sand mill for grinding, and then mixed by high shear to prepare a 20% acifluorfen-cyhalofop-ethyl suspension concentrate.

[0054] 20% acifluorfen-cyhalofop-ethyl dispersible oil suspension: acifluorfen-fen 5%, cyhalofop-methyl 15%, calcium dodecylbenzenesulfonate 4%, castor oil ethoxylates 4%, sodium lignosulfonate 3%, soybean oil 8%, organic bentonite 3%, methyl oleate added to 100%. The above-mentioned materials are pre-crushed in proportion, and then put into a sand mill for grinding, and then prepared after high-shear mixing to prepare a 20% acifluorfen-cyhalofop-ethyl suspension concentrate.

[0055...

Embodiment 3

[0057] Test time: July 22, 2017, 15 days after the rice was thrown and planted, the rice turned green, most grass weeds grew to 4 leaves, broad-leaved weeds grew to 4 leaves, and sedges grew to 5-8CM

[0058] Test location: Liancheng Village, Jincheng Town, Jintan City, Jiangsu Province

[0059] Test agent and treatment:

[0060] 5% aciflufen-15% cyhalofop-ethyl dispersible oil suspension concentrate, dosage 20(g a.i. / ha)(1#)

[0061] 5% acifluorfen-15% cyhalofop-ethyl dispersible oil suspension concentrate, dosage 30(g a.i. / ha)(2#)

[0062] 5% acifluorfen-15% cyhalofop-ester dispersible oil suspension concentrate, dosage 40 (g a.i. / ha) (3#) Control agent and application dosage:

[0063] 5% acifluorfen dispersible oil suspension concentrate, dosage 30(g a.i. / ha)(4#)

[0064] 15% cyhalofop-methyl dispersible oil suspension concentrate, dosage 40(g a.i. / ha)(5#)

[0065] The test results are shown in Table 5. 5% acifluorfen-15% cyhalofop-ethyl dispersible oil suspension conce...

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Abstract

The invention relates to a weeding composition containing ethanone,1-[3-(trifluoromethyl)phenyl]-o-[2,6-bis[(4,6-dimethoxy-2-pyrimidinyl)oxy]benzoyl]oxime and cyhalofop-butyl and relates to the technical field of production of weedicide. Effective components comprise the ethanone,1-[3-(trifluoromethyl)phenyl]-o-[2,6-bis[(4,6-dimethoxy-2-pyrimidinyl)oxy]benzoyl]oxime and the cyhalofop-butyl. The weight part ratio of the ethanone,1-[3-(trifluoromethyl)phenyl]-o-[2,6-bis[(4,6-dimethoxy-2-pyrimidinyl)oxy]benzoyl]oxime to the cyhalofop-butyl in the weeding composition ranges from (1 to 0.1) to (1 to 20). The ethanone,1-[3-(trifluoromethyl)phenyl]-o-[2,6-bis[(4,6-dimethoxy-2-pyrimidinyl)oxy]benzoyl]oxime and the cyhalofop-butyl are compounded so that the weeding composition has the effect of preventing and controlling weeds of paddy rice fields in an efficient and broad-spectrum manner; meanwhile, a weed control spectrum range is expanded; the weeding composition has a prevention and controleffect on various weeds of direct seeding paddy rice fields, such as barnyard grass, green bristlegrass, monochoria vaginalis, ammannia baccifera, ludwigia prostrate, rotala indica, digitaria sanguinalis, leptochloa chinensis, cyperus rotundus and sirpus yagara; the weeding composition has no influences on crops and the effect is better than that of single utilization of two weedicide varieties including the ethanone,1-[3-(trifluoromethyl)phenyl]-o-[2,6-bis[(4,6-dimethoxy-2-pyrimidinyl)oxy]benzoyl]oxime and cyhalofop-butyl.

Description

technical field [0001] The invention relates to the technical field of herbicide compound production, in particular to a herbicidal composition containing aciflufen and cyhalofop-ethyl as herbicide raw materials for controlling weeds in paddy fields. Background technique [0002] Chemical weeding is one of the main methods of comprehensive weed control in modern agriculture. On the one hand, the large-scale use of a single type of herbicide quickly leads to weed resistance. At the same time, when agricultural weeds occur, the grass phase is complex, grass weeds, broad-leaved weeds, sedges and other weeds are mixed, and the use of a single type of herbicide cannot solve the weeds in the farmland, and they will all show certain aspects. Bugs and Limitations. Mixing different types of herbicides has the advantages of broad herbicidal spectrum, improving the actual control effect, delaying weed resistance, saving time and labor, etc. On the other hand, there are many kinds of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/54A01N39/04A01P13/00
CPCA01N39/04A01N43/54
Inventor 徐德锋
Owner CHANGZHOU UNIV
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