Weeding composition containing pyriminobac-methyl, penoxsulam and metamifop and preparation and application thereof

A technology of penoxsulam and fenpyramid, which is applied in the direction of herbicide and algicide, application, biocide, etc., to achieve the effect of strengthening weeding effect, reducing the risk of phytotoxicity and environmental safety

Inactive Publication Date: 2016-03-30
ZHEJIANG XINNONG CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] At present, there is no compound preparation containing pyriflumechlor, penoxsulam and mefentrazone disclosed

Method used

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  • Weeding composition containing pyriminobac-methyl, penoxsulam and metamifop and preparation and application thereof
  • Weeding composition containing pyriminobac-methyl, penoxsulam and metamifop and preparation and application thereof
  • Weeding composition containing pyriminobac-methyl, penoxsulam and metamifop and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1: emulsifiable concentrate

[0051] 5% pyriflumezin, 5% penoxsulam, 20% fenoxafen and 4% phenethylphenol polyoxyethylene ether, 3% fatty alcohol polyoxyethylene ether, 4% alkylbenzenesulfonic acid Salt and heavy aromatic solvent oil are added to 100%. After mixing and stirring evenly, an emulsifiable concentrate preparation is obtained. According to actual needs, an appropriate amount of xylene can be added to make an emulsifiable concentrate preparation with an active ingredient content of 30%.

Embodiment 2

[0052] Embodiment 2: water dispersible granules

[0053] 3% pyriflumezin, 2% penoxsulam, 15% oxafen and naphthalenesulfonic acid condensate sodium salt 4.0%, acyl glutamate 3.0%, ammonium chloride 15.0%, white carbon black 10.0% kaolin and 48.0% kaolin are fully mixed, then crushed by airflow, and granulated to obtain water-dispersible granules. The water-dispersible granules contain 20% active compound, and the particle size of the product is 80-120 mesh.

Embodiment 3

[0054] Embodiment 3: dry suspension

[0055] 8% pyriflumezin, 5% penoxsulam, 10% fenoxafen, 3.0% lignosulfonate, 3.0% sodium methylnaphthalenesulfonate formaldehyde condensate, 15.0% ammonium sulfate, xanthan Glue 0.2%, talcum powder 15.0%, and kaolin 40.8% are fully mixed, and a certain proportion of tap water is added, put into a high-shear homogeneous emulsification kettle for high-speed shearing and rough grinding and homogenization, and pumped to a sand mill for sanding. Sand mill to a certain particle size, and then granulate to obtain a dry suspension. The dry suspension contains 23% active compound.

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Abstract

The invention relates to herbicide, in particular to a weeding composition containing pyriminobac-methyl, penoxsulam and metamifop and a preparation and application thereof. The weeding composition containing the pyriminobac-methyl, the penoxsulam and the metamifop contains effective constituents of the pyriminobac-methyl, the penoxsulam and the metamifop, wherein the mass ratio of the pyriminobac-methyl to the penoxsulam to the metamifop is (0.1-50);(0.1-50):(0.1-70). The three effective constituents have no cross resistance. By mixing the effective constituents, the effect of weeding can be effectively strengthened, the prevention and treatment spectrum can be enlarged, a plurality of weeds including poaceae, cyperaceae and broad leaf weeds can be killed widely, the fast-acting property and the persistence can be improved, the times for spraying in a growth period are reduced, and the pyriminobac-methyl, the penoxsulam and the metamifop are very important for the delay of generation of medicament resistance. Risks of occurrence of phytotoxicity are reduced greatly due to the fact that the applied concentration of a single medicament is reduced. The requirements that one medicament has multiple purposes in agricultural production, the times for spraying is reduced, and the risks of the phytotoxicity are reduced are met.

Description

technical field [0001] The invention relates to a herbicide, in particular to a herbicidal composition containing pyriflubac-methyl, penoxsulam and mefentrazone, as well as its preparation and application. Background technique [0002] Herbicide varieties containing a single active ingredient often have varying degrees of defects in the control of weeds in agricultural fields. For example, weeds are prone to resistance after continuous application, the herbicide spectrum is narrow, and frequent applications will aggravate environmental pollution. One way to control agriculturally resistant weeds is to introduce new ingredients that are not cross-resistant with existing varieties. However, the development cost of new active ingredients is high, the development cycle is long, and it will never keep up with the speed of weed resistance. Other methods, such as crop layout adjustment, rotation of different pesticides, etc., are difficult to achieve obvious effects in actual oper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01P13/00A01N43/54A01N43/76
Inventor 郭世俭杜金河李俊张威范坤成曹小燕
Owner ZHEJIANG XINNONG CHEM CO LTD
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