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A herbicidal composition containing dicamba and metazachlor and its application

A herbicidal composition and a technology of metazachlor, applied in the fields of herbicides and pesticides, can solve the problems of inability to completely and effectively control weeds in corn fields, residual poisoning of current crops or subsequent crops, long field duration, and the like, To achieve the effect of improving safety, improving efficacy and delaying weed resistance

Active Publication Date: 2016-08-17
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, herbicides in cornfields are limited by the safety of crops, and their herbicidal spectrum is also limited. Using a single herbicide alone cannot completely and effectively control the occurrence of weeds in cornfields. Too long effective period, excessive dosage or uneven application will easily cause residual toxicity to current crops or subsequent crops

Method used

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  • A herbicidal composition containing dicamba and metazachlor and its application
  • A herbicidal composition containing dicamba and metazachlor and its application
  • A herbicidal composition containing dicamba and metazachlor and its application

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Dicamba 34%, metazachlor 1%, alkylphenol polyoxyethylene ether 4%, phenethylphenol polyoxyethylene ether 15%, xylene to 100%, according to the conventional preparation method, the mass percentage content is 35% EC.

Embodiment 2

[0025] Dicamba 29%, metazachlor 1%, sodium methylnaphthalene sulfonate formaldehyde condensate 6%, nonylphenol polyoxyethylene ether 3%, magnesium aluminum silicate 0.5%, ethylene glycol 7%, tributyl phosphate 2%, silicone oil 0.2%, and the balance is water, and it is prepared into a suspending agent with a mass percentage content of 30% according to a conventional preparation method.

Embodiment 3

[0027] Dicamba 59%, metazachlor 1%, NNO (sodium methylenebissulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolin to 100%, according to the conventional preparation method to prepare the quality of 100% Water-dispersible granules with a content of 60%.

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Abstract

The invention discloses a dicamba and metazachlor herbicidal composition and application thereof, the herbicidal composition comprises dicamba and metazachlor as main effective components, and the mass ratio of dicamba to metazachlor is 1-60:1-60. The herbicidal composition can be used for cornfield after-seedling weeding, is especially used to control gramineae and broadleaf weeds in cornfields, and has a significant effect. The herbicidal composition has the advantages of delaying weed resistance, wide weeding spectrum, long lasting period, and safety of the corn and afterreap crops on the premise of improvement of the efficacy of the herbicide compared with a single agent.

Description

technical field [0001] The invention belongs to the technical field of pesticides, in particular to the field of herbicides, and in particular relates to a binary compound herbicidal composition of dicamba and metazachlor, which can be applied to post-emergence weeding in corn fields. Background technique [0002] Dicamba, also known as dicamba; Baicao enemy. Chemical name: 3,6-dichloro-2-methoxybenzoic acid, structural formula: [0003] [0004] Dicamba is a hormonal herbicide. It has a systemic conduction effect and has a significant control effect on annual and perennial broad-leaved weeds. Dicamba is used for post-emergence spraying, and the drug can be quickly absorbed by the leaves, stems, and roots of the weed, conduct upward and downward through the phloem and xylem, and mostly concentrate in the meristematic tissue and parts with strong metabolic activities, hindering the normal activity of plant hormones , causing it to die. Generally, broad-leaved weeds wil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/56A01P13/00A01N37/40
Inventor 汤飞荣郭崇友张宝俊高瑞花邢刚
Owner NANJING HUAZHOU PHARMA