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Mixed herbicide composition containing bispyribac-sodium and acetochlor and application thereof

A herbicidal composition, acetochlor technology, applied in the field of herbicides and pesticides, can solve the problems of incomplete and effective control of weeds in paddy fields, residual toxicity of current season crops or subsequent crops, large amount of herbicides, etc., to achieve Reduce the speed of weed resistance generation, improve the control effect, and have a long-lasting effect

Active Publication Date: 2013-12-25
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 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 acetochlor and application thereof
  • Mixed herbicide composition containing bispyribac-sodium and acetochlor and application thereof
  • Mixed herbicide composition containing bispyribac-sodium and acetochlor and application thereof

Examples

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Embodiment 1

[0022] 5% of bispyribac, 20% of acetochlor, 5% of calcium dodecylbenzenesulfonate, 3% of alkylphenol polyoxyethylene ether, 100% of solvent oil, formulated according to the mass percentage of active ingredients according to conventional preparation methods 25% emulsifiable concentrate.

Embodiment 2

[0024] Bispyribac 10%, acetochlor 20%, sodium methylnaphthalene sulfonate formaldehyde condensate 6%, nonylphenol polyoxyethylene ether 3%, magnesium aluminum silicate 0.5%, ethylene glycol 2%, add 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

[0026] 20% bispyribac, 50% acetochlor, 5% NNO (sodium methylene bis-naphthalene sulfonate), 2% polyvinyl alcohol, add kaolin to 100%, and formulate the mass percentage of active ingredients according to the conventional preparation method It is 70% water dispersible granule.

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Abstract

The invention belongs to the technical field of pesticides, in particular to the field of herbicides, and relates to a mixed herbicide composition containing bispyribac-sodium and acetochlor. The herbicide composition adopts the bispyribac-sodium and the acetochlor as main active components, the weight ratio of the bispyribac-sodium and the acetochlor is 0.1 to 99:0.1 to 99. Different surfactants, thickening agents, solvents, solid fillers or the like can be added to the herbicide composition to become a variety of agents, such as emulsifiable concentrate, suspending agents, water-dispersible granules, wettable powder and the like. 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, can prevent and get rid of gramineous weeds, broadleaf weeds and cyperaceous weeds in paddy fields, is safe for rice and next-stubble crops, and therefore is an ideal paddy field herbicide.

Description

technical field [0001] This patent belongs to the technical field of pesticides, especially the field of herbicides, and relates to a mixed herbicidal composition containing bispyribac and acetochlor and its application. The herbicidal composition has a remarkable effect of weeding after the rice field is applied. 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] Acetochlor, also known as ethyl acetochlor, He Naisi, Xiaocaoan. Chemical name: 2′-ethyl-6′-methyl-N-(ethoxymethyl)-2-chloroacetanilide, the structural formula is: [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/54A01N37/26A01P13/00
Inventor 芮国华徐盈陈志忠苑志军高燕
Owner NANJING HUAZHOU PHARMA