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Mixed preparation containing butachlor, simetryn and oxadiargyl

A technology of propargyl oxadiazone and butachlor, which is applied in the field of pesticides, can solve the problems of inducing resistant weeds, etc., and achieve the effect of long-lasting effect, reducing the frequency of application and high herbicidal activity

Inactive Publication Date: 2020-07-31
安徽远景作物保护有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the long-term use of the same herbicide or the same compound formulation leads to the succession of weed communities in paddy fields, thereby inducing the occurrence of resistant weeds

Method used

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  • Mixed preparation containing butachlor, simetryn and oxadiargyl
  • Mixed preparation containing butachlor, simetryn and oxadiargyl
  • Mixed preparation containing butachlor, simetryn and oxadiargyl

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preparation Embodiment

[0097] Other names, structural formulas and basic physicochemical parameters of the active ingredients in this product, butachlor, sicauzin and oxadiazon are as follows:

[0098] a) oxadiazon

[0099] ISO common name: oxadiargyl

[0100] CIPAC number code: 604

[0101] CAS accession number: 39807-15-3

[0102] Chemical name: 5-tert-butyl-3-[(2,4-dichloro-5-propargyloxy)phenyl]-1,3,4-oxadiazol-2(3H)-one Structural formula:

[0103]

[0104] Experimental: C 15 H 14 Cl 2 N 2 O 3

[0105] Relative molecular mass (according to 2011 international relative atomic mass): 341.2

[0106] Biological activity: herbicide

[0107] Melting point (°C): 131

[0108] Vapor pressure (25℃): 2.5×10 -5 Pa

[0109] Solubility (20℃, g / L): water 3.7×10 -4 ; Acetone 250, acetonitrile 94.6, dichloromethane>500, ethyl acetate 126.1, methanol 14.7, n-heptane 0.9, n-octanol 3.5, toluene 77.6.

[0110] Stability: Stable to heat (15d, 54°C), light and water. pH4, 5, 7 hydrolytically stable...

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Abstract

The invention relates to a weeding composition. Active ingredients of the weeding composition comprise butachlor, simetryn and oxadiargyl. The weeding composition is safe to rice and can effectively prevent and remove various gramineous and broadleaf weeds in a paddy field. Wherein the weight ratio of the active ingredients is (1-100): (1-100): (1-100), preferably (1-10): (1-10): (1-50), and morepreferably (1-10): (1-10): (20-50). The weeding composition can be prepared into agriculturally allowable dosage forms such as missible oil, water dispersible granules, wettable powder, powder, granules, a suspending agent, a dispersible oil suspending agent and large granules according to a method known by technicians in the field. The preferable dosage form of the weeding composition is a dispersible oil suspending agent. The weeding composition is used for preventing and removing gramineae, broadleaf and cyperaceae weeds in transplanted rice fields, direct seeding rice seedling beds and seedling throwing rice fields.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a ternary herbicidal composition and application thereof. Background technique [0002] Weed damage in paddy field is one of the important factors affecting rice yield. The application of herbicides, especially mixed herbicides, to control weeds in paddy fields is an important technical measure. At the same time, when weeds occur in paddy fields, the grass phase is complex. In most cases, grass weeds, broadleaf weeds, and sedge weeds are mixed, and it is difficult for a single variety of herbicide to control all weeds in paddy fields. [0003] A lot of explorations have been made on the development of mixtures in the prior art. For example, CN104585204A discloses a compound preparation of pyrosulfuron-methyl, oxyfluorfen and oxadiazon to control rice field barnyardgrass, sedge and sedge. CN104430460A discloses pyrazosulfuron-methyl, clomazone and butachlor oil suspension fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N37/26A01N43/70A01N43/824A01P13/00
CPCA01N37/26A01N43/70A01N43/82
Inventor 李祝朱德涛李玉洁曾姓策
Owner 安徽远景作物保护有限公司
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