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Weeding composition for wheat field

A herbicidal composition and the technology of the composition, applied in the field of pesticides, can solve the problems that broad-leaved weeds and gramineous weeds cannot play a very good role at the same time, and the herbicidal spectrum is narrow, so as to achieve good control effect and herbicidal spectrum. The effect of widening and controlling harm

Active Publication Date: 2013-12-18
FMC CHINA INVESTMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the wheat field herbicides currently on the market have a narrow herbicidal spectrum, which cannot effectively treat broad-leaved weeds and grass weeds in the field at the same time.

Method used

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  • Weeding composition for wheat field
  • Weeding composition for wheat field
  • Weeding composition for wheat field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 30% azole · alkyne · bensulfuron-methyl wettable powder (ratio of mefentrazone, bensulfuron-methyl, and clodinafop-propargyl: 1:1:1), the weight ratio of each component of the product and the preparation method: clodinafop-propargyl 10%, mefentrazone 10%, bensulfuron-methyl 10%, alkyl naphthalene sulfonate 8%, sodium lignosulfonate 8%, synergist 15%, kaolin 25%, white carbon black 14 %. Pour each component into the mixing tank at one time, and pulverize to a certain fineness under the condition of uniform stirring.

[0031] 30% azole · alkyne · bensulfuron-methyl wettable powder drug efficacy report: wheat turning green stage, weeds 5 stage, 30 days after the application, the control effect results of the investigated strains are as follows:

[0032]

[0033] *WG: water dispersible granules

[0034] *WP: wettable powder

[0035] The test results show that the herbicidal effect of mixed use of mefentrazone, clodinafop-propargyl and bensulfuron-methyl is higher than...

Embodiment 2

[0037] 26% oxazone·yne·benzsulfuron-methyl wettable powder (ratio of mefentrazone, bensulfuron-methyl, and clodinafop-propargyl: 1:50:1), the weight ratio of each component of the product and the preparation method: Mefentrazone 0.5%, Bensulfuron-methyl 25%, Clodinafop-propargyl 0.5%, Alkylnaphthalene Sulfonate 2%, Sodium Lignosulfonate 8%, Polycarboxylate 6%, Synergist 3%, Kaolin 42%, ammonium sulfate 13%. Pour each component into the mixing tank at one time, and pulverize to a certain fineness under the condition of uniform stirring.

[0038] 26% azole · alkyne · bensulfuron-methyl wettable powder drug efficacy report: wheat turning green stage, weeds 5 stage, 30 days after the application, the control effect results of the investigated strains are as follows:

[0039]

[0040] The test results show that the herbicidal effect of mixed use of mefentrazone, clodinafop-propargyl and bensulfuron-methyl is higher than that of any single agent of the components, which is benef...

Embodiment 3

[0042] 37% oxazone·yne·benzsulfuron-methyl wettable powder (ratio of mefentrazone, bensulfuron-methyl, and clodinafop-propargyl: 1:2.4:4), the weight ratio of each component of the product and the preparation method: clodinafop-propargyl 20%, mefentrazone 5%, bensulfuron-methyl 12%, alkylnaphthalene sulfonate 8%, sodium lignosulfonate 8%, synergist 25%, white carbon black 22%. Pour each component into the mixing tank at one time, and pulverize to a certain fineness under the condition of uniform stirring.

[0043] 37% azole · alkyne · bensulfuron-methyl wettable powder drug efficacy report: wheat turning green stage, weed 5 stage, 30 days after the application, the control effect results of the investigated strains are as follows:

[0044]

[0045]The test results show that the herbicidal effect of mixed use of mefentrazone, clodinafop-propargyl and bensulfuron-methyl is higher than that of any single agent in the components, which is beneficial to increase the efficacy of ...

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Abstract

The invention discloses a weeding composition for a wheat field. The active ingredients of the weeding composition comprise (A): any one of carfentrazone and clodinafop-propargyl, and (B): any one or two of tribenuion methyl, bensulfuron methyl, fluroxypyr, florasulam, pyrazosulfuron, isoproturon and MCPA-Na (2-methyl-4-chloro-phenoxyacetic acid-sodium); or comprise two ingredients of A and any one of B. The ratio of two ingredients is 1-70:1-70, and the ratio of three ingredients is 1-50:1-50:1-50. The composition of the invention can be prepared into missible oil, oil suspension agent, wettable powder, water dispersible granules and the like, and has the advantages of good weeding effect, wide weeding spectrum, small use amount, low residue, safety to crops and low cost. Moreover, the composition has good prevention and control effect in removing broadleaf weeds and partial grass family weeds, the prevention and control rate is over 90%, and the harm of weeds in the wheat field can be essentially controlled throughout the season by once application.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a herbicidal composition used in wheat fields. Background technique [0002] Wheat is one of the main crops in our country. With the continuous expansion of the planting area of ​​wheat, the weed damage in the wheat field is also expanding day by day in the expanding production, and the damage is becoming more and more serious. Whether the weed damage in the wheat field can be effectively controlled and the high yield of wheat can be stabilized? It has also become one of the main topics of modern agricultural herbicide research. Therefore, farmers need to choose a herbicide that is efficient, safe for crops and cheap. Most of the wheat field herbicides currently on the market have a narrow herbicidal spectrum, and cannot effectively play a very good role on broad-leaved weeds and grass weeds in the field at the same time. [0003] Therefore, there is an urgent need in this f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N47/36A01N43/653A01N43/40A01N39/04A01N47/30A01N43/90A01P13/00
Inventor 史明辉杜金河王厚文沈新华徐国君
Owner FMC CHINA INVESTMENT
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