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Mixed herbicide composition containing bispyribac-sodium and pretilachlor

A herbicidal composition, pretilachlor technology, applied in the field of pesticides, can solve the problems of incomplete and effective control of weeds in paddy fields, residual toxicity of current crops or subsequent crops, large herbicide dosage, etc., to achieve weed resistance Reducing the speed of sexual production, improving the control effect, and the effect of long-lasting effect

Inactive Publication Date: 2012-05-23
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, herbicides in paddy fields are limited by the safety of crops, and the herbicidal spectrum is also limited. Using a single herbicide alone cannot completely and effectively control the occurrence of weeds in paddy fields. Uniformity is also likely to cause residual toxicity to current crops or subsequent crops

Method used

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  • Mixed herbicide composition containing bispyribac-sodium and pretilachlor
  • Mixed herbicide composition containing bispyribac-sodium and pretilachlor
  • Mixed herbicide composition containing bispyribac-sodium and pretilachlor

Examples

Experimental program
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Effect test

Embodiment 1

[0017] 5% bispyribac, 20% pretilachlor, 5% calcium dodecylbenzenesulfonate, 3% alkylphenol polyoxyethylene ether, 100% solvent oil, formulated according to the mass percentage of active ingredients according to conventional preparation methods 25% emulsifiable concentrate.

Embodiment 2

[0019] Bispyribac 10%, pretilachlor 20%, sodium methylnaphthalene sulfonate formaldehyde condensate 6%, nonylphenol polyoxyethylene ether 3%, magnesium aluminum silicate 0.5%, ethylene glycol 2%, water to 100 %, according to the conventional preparation method, it is prepared into a suspension concentrate with an active ingredient mass percent content of 30%.

Embodiment 3

[0021] 20% of bispyribac, 40% of pretilachlor, 5% of NNO (sodium methylene bis-tetrasulfonate), 2% of polyvinyl alcohol, and 100% of kaolin, according to the conventional preparation method, the mass percentage of active ingredients is 60% water dispersible granules.

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Abstract

The invention belongs to the field of pesticides, and relates to a mixed herbicide composition containing bispyribac-sodium and pretilachlor. The herbicide composition adopts the bispyribac-sodium and the pretilachlor as main active components, the weight ratio of the bispyribac-sodium and the pretilachlor is 1 to 99:1 to 99, and the herbicide composition is mainly applied to postemergence weeding in paddy fields. Compared with single agents, the herbicide composition delays the resistance of weeds under the premise that the pesticide effect is enhanced, has a broad weeding spectrum and long persistence, and is safe for rice and next-stubble crops.

Description

technical field [0001] The invention belongs to the field of pesticides, in particular to the field of herbicides, and relates to a mixed herbicidal composition containing bispyribac and pretilachlor, which can be used for post-emergence weeding in paddy fields. Background technique [0002] Bispyribac, also known as Nongmeili, bispyrimidine salicylate, chemical name: 2,6-bis(4,6-dimethoxypyrimidinyl-2-oxyl)sodium benzoate. It is a phenoxycarboxylic acid herbicide, which mainly inhibits the synthesis of acetic acid through roots and leaves and hinders the biosynthesis of branched chain amino acids. It is a selective herbicide and is used in direct-seeding rice fields with a wide weeding spectrum. Its structural formula is as follows: [0003] [0004] Pretilachlor, also known as Saofert. Chemical name: 2-chloro-2,6'-diethyl-N-(2-propoxyethyl) acetanilide, the herbicide is a selective pre-emergence treatment agent, which can pass through the plant hypocotyl, mesoderm Ax...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/54A01N37/22A01P13/00
Inventor 齐武刘奎涛夏向荣赵立嵚顾起财
Owner NANJING HUAZHOU PHARMA
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