Unlock instant, AI-driven research and patent intelligence for your innovation.

Composite herbicide containing clethodim, fenbuten and metolachlor and its application

A compound herbicide, metolachlor technology, applied in the direction of herbicides and algicides, applications, biocides, etc., can solve the problems of incomplete and effective control of weeds in rapeseed fields, limited herbicidal spectrum, and safety. To achieve the effects of reducing the speed of weed resistance generation, widening the herbicidal spectrum, and improving the herbicidal activity

Inactive Publication Date: 2015-11-18
河南中天恒信生物化学科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the above three herbicides are all known commercially available compounds that can be used for weeding, there is no relevant report on the combination of the three, and the current herbicides in rapeseed fields are limited by crop safety, and the herbicidal spectrum is also limited. Limited, the use of one herbicide alone can no longer completely effectively control the occurrence of weeds in rapeseed fields

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Composite herbicide containing clethodim, fenbuten and metolachlor and its application
  • Composite herbicide containing clethodim, fenbuten and metolachlor and its application
  • Composite herbicide containing clethodim, fenbuten and metolachlor and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The formula of the microcapsule suspension described in the present embodiment is as follows: 10% of clethodim, 15% of chlorbutazone, 25% of metolachlor, 5% of polyphenyl polymethyl polyisocyanate as the capsule wall material, water-based monomer butyl Diol 0.6%, dispersant sodium lignosulfonate 3%, protective agent gelatin 0.8%, capsule core solvent N,N-dimethylformamide 8%, and the balance is water.

[0026] Preparation method: Add triethanolamine to the capsule wall material to adjust the pH to 8, heat to 70°C, and react for 1 hour under heat preservation to obtain a viscous liquid, then dilute with 1.5 times the amount of water to form a stable capsule wall material prepolymer solution; put clethodim, benzafen and metolachlor into a three-necked bottle equipped with a thermometer and a stirring device, add the solvent for the core of the capsule to dissolve, add a dispersant, a protective agent and the above-mentioned capsule wall material pre-preparation while stirr...

Embodiment 2～5

[0028] The composition microcapsule suspension of following different content can be prepared by the similar method of embodiment 1:

[0029]

[0030]

[0031] Wherein, the preparation method of embodiment 2 is:

[0032] Add triethanolamine to the capsule wall material to adjust the pH to 8, heat to 60°C, and react under heat preservation for 2 hours to obtain a viscous liquid, which is then diluted with 1 times the amount of water to form a stable capsule wall material prepolymer solution; Put clethodim, fenpyrazole and metolachlor into a three-necked bottle equipped with a thermometer and a stirring device, add the core solvent to dissolve, add the dispersant, protective agent and the above-mentioned capsule wall material prepolymer solution while stirring , fully stirred to disperse into very fine particles; add hydrochloric acid twice within 0.5h, and at the same time cooperate with high-speed stirring or shearing, adjust the pH in the range of 1 to 3, and polyconden...

Embodiment 3

[0033]The preparation method of embodiment 3 is:

[0034] Add triethanolamine to the capsule wall material to adjust the pH to 9, heat to 80°C, and react under heat preservation for 0.5h to obtain a viscous liquid, which is then diluted with 2 times the amount of water to form a stable capsule wall material prepolymer solution; Put clethodim, azalea and metolachlor into a three-necked bottle equipped with a thermometer and a stirring device, add the solvent for the core of the capsule to dissolve, and add the dispersant, protective agent and the prepolymer of the above-mentioned capsule wall material while stirring Solution, fully stirred to disperse into very fine particles; add hydrochloric acid in 4 times within 1.5h, and at the same time cooperate with high-speed stirring or shearing, adjust the pH in the range of 3 to 5, under the action of acid catalysis, it can be polycondensed to form a diameter below 2.5μm The microcapsules, then add the water-soluble monomer, and sti...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a compound herbicide containing clethodim, benazolin ethyl and metolachlor and application of the compound herbicide. The compound herbicide comprises main active ingredients, namely clethodim, benazolin ethyl and metolachlor, with the content being 15-70 percent, preferably 30-40 percent or 45-50 percent. The compound herbicide disclosed by the invention is applied to weeding after oilseed rape seeds germinate in an oilseed rape farmland, and especially has a remarkable effect when being applied to control and removal of various gramineous weeds and broadleaf weeds in the oilseed rape farmland.

Description

technical field [0001] The invention belongs to the field of herbicides, and relates to a composite herbicide containing clethodim, fenbutazone and metolachlor and an application thereof. Background technique [0002] Clethodim (clethodim), molecular formula: C 17 h 26 ClNO 3 S, chemical name: (±)-2-[(E)-3-chloroallyloxyimino]propyl-5-[2-(ethylthio)propyl]-3-hydroxycyclohexyl-2 -enone. Clethodim is a new type of dry field post-emergence herbicide with excellent selectivity. It is suitable for controlling barnyardgrass, wild oats, crabgrass, foxtail, goosegrass, okra, bluegrass, hard grass and other gramineous weeds in broad-leaved fields such as soybeans, rapeseed, cotton, and peanuts. After spraying, it can be quickly absorbed by the stems and leaves of grass weeds and transmitted to the shoot tips and meristems, inhibiting the activity of meristems, destroying cell division, and finally leading to the death of weeds. [0003] Benazolineethyl, molecular formula: C 9 ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/78A01P13/00A01N37/22A01N35/10
Inventor 吴宏博虎彪金莎莎
Owner 河南中天恒信生物化学科技有限公司