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Rice weed-killing agent containing bispyribac-sodium

A technology of herbicide and bispyribac, which is applied in the direction of herbicide, algicide, biocide, biocide, etc., to achieve the effect of reducing the dosage, making up for the defects and limitations of single agent use, and expanding the herbicide spectrum

Inactive Publication Date: 2019-07-23
JIANGSU INST OF ECOMONES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The herbicidal performance and the broadness of the herbicidal spectrum of the above herbicides need to be improved

Method used

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  • Rice weed-killing agent containing bispyribac-sodium
  • Rice weed-killing agent containing bispyribac-sodium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 20% bispyribac and iodosulfuron-methyl oil suspension: clopyrazosulfuron-methyl 10%, methyl-iodosulfuron-methyl 15%, polyoxyethylene alkylphenol ether 5%, fatty acid polyoxyethylene ester 5%, fat Polyoxyethylene 2%, magnesium aluminum silicate 3%, emulsified silicone oil 2%, methylated soybean oil added to 100%.

[0030] The preparation method is as follows: after mixing bispyribac-methyl and iodosulfuron-methyl with the solvent, then adding other materials into the reactor mixer, stirring evenly, injecting the materials into a multi-stage sand mill for grinding, and the ground materials The fineness of 98% passes through 1-5 μm, and then the material is discharged, and the material is transferred to a high-shear emulsification kettle, and after emulsification, 20% bispyribac-methyl and iodosulfuron-methyl oil suspending agent can be made.

Embodiment 2

[0032] 30% bispyribac and iodosulfuron-methyl oil suspension concentrate: clopyrazosulfuron-methyl 10%, methyl-iodosulfuron-methyl 20%, polyoxyethylene alkylphenol ether 5%, fatty acid polyoxyethylene ester 5%, fat Polyoxyethylene 2%, magnesium aluminum silicate 3%, emulsified silicone oil 2%, methylated soybean oil added to 100%.

[0033] The preparation method is the same as in Example 1.

Embodiment 3

[0035] 60% bispyribac and iodosulfuron-methyl oil suspension: clopyrazosulfuron-methyl 10%, methyl-iodosulfuron-methyl 50%, polyoxyethylene alkylphenol ether 5%, fatty acid polyoxyethylene ester 5%, fat Polyoxyethylene 2%, magnesium aluminum silicate 3%, emulsified silicone oil 2%, methylated soybean oil added to 100%.

[0036] The preparation method is the same as in Example 1.

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Abstract

The invention relates to the technical field of pesticide compositions, in particular to a rice weed-killing agent containing bispyribac-sodium. The weed-killing agent comprises active components of the bispyribac-sodium and methyl iodosulfuron with the mass ratio of (1-10) to (2-8). The weed-killing activity of a compound of the bispyribac-sodium and the methyl iodosulfuron on test weeds including barnyard grass, monochoria vaginalis, cyperus difformis and sagittaria trifolia is respectively higher than that of single use of the bispyribac-sodium and the methyl iodosulfuron, and a synergisticeffect is realized; in addition, after compounding, a weed control spectrum is expanded, and the use dosage is also reduced; by compounding of the bispyribac-sodium and the methyl iodosulfuron and combination of the two effective components, the weed control spectrum is expanded, the controlling and killing effects are achieved; by one-time pesticide use, the hazard of the weeds in a whole growthperiod of rice can be effectively controlled, and the defects and limitations of use of a single agent can be made up.

Description

technical field [0001] The invention relates to the technical field of pesticide compositions, in particular to a rice herbicide containing bispyribac. Background technique [0002] Rice herbicides are pesticides that can completely or selectively kill weeds, and are used to eliminate or inhibit the growth of weeds without inhibiting the growth of rice. [0003] At present, the resistant weeds in my country's rice crop fields mainly include barnyardgrass, bermudagrass, heteromorphous sedge, sagittarius, bermudagrass, and lotus seedlings (water peanuts). The main varieties of herbicides used in paddy fields are quinclorac, cyhalofop-ethyl, penoxsulam, fenoxachlor, butachlor, pretilachlor, bensulfuron-methyl, pyrazosulfuron-methyl, benzosulfuron Dasone, 2-methyl-4-chloride and their compound preparations. The herbicidal performance and the broadness of the herbicidal spectrum of the above herbicides need to be improved Contents of the invention [0004] Aiming at the abov...

Claims

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Application Information

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IPC IPC(8): A01N43/54A01N47/36A01P13/00
CPCA01N43/54A01N47/36
Inventor 孔繁雷张旺庚刘青
Owner JIANGSU INST OF ECOMONES
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