Herbicide compound specially used for cogon weeds and weeding microemulsion

A herbicide and microemulsion technology, applied in the field of pesticides, can solve the problems of large residues, environmental pollution, and difficult degradation

Inactive Publication Date: 2015-11-11
ANHUI JINSHUIYUAN ECOLOGICAL AGRI
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, herbicide residues in the soil affect the persistence of herbicides and the safety of the environment
From the aspect of weed control, herbicides should have a certain residual period. If the residual period is too short, the weeding effect will not be good, but if the residual period is too long, it will cause phytotoxicity to the recommended crops.
However, from an environmental point of view, the shorter the residual period of herbicides, the better. Herbicides are too stable, not easy to degrade, and have a large amount of residues in the environment, which will cause environmental pollution.

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
  • Herbicide compound specially used for cogon weeds and weeding microemulsion
  • Herbicide compound specially used for cogon weeds and weeding microemulsion

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0034] Surfactant provided by the invention is octylphenol polyoxyethylene ether sulfonate, and its preparation method comprises:

[0035] The first step, the chlorination of octylphenol polyoxyethylene ether;

[0036] The second step is the sulfonation of octylphenol polyoxyethylene ether after chlorination.

[0037] The first step is further specifically adding octylphenol polyoxyethylene ether (OP-4) and pyridine into the reaction vessel at a molar ratio of 1:1, adding thionyl chloride dropwise under constant temperature water bath conditions, chlorine The molar ratio of sulfoxide to octylphenol polyoxyethylene ether was 1.5:1, stirred and reacted at 70°C to 80°C for 2 hours, and chlorooctylphenol polyoxyethylene ether was synthesized.

[0038] The second step is further specifically adding chlorooctylphenol polyoxyethylene ether to water, the mass ratio of chlorooctylphenol polyoxyethylene ether to water is 1:1.5, and then adding sulfonating agent sodium sulfite (Na 2 SO...

Embodiment 1

[0046] Embodiment 1 octylphenol polyoxyethylene ether sulfonate

[0047] Mix 10 mol of octylphenol polyoxyethylene ether (OP-4) and 10 mol of pyridine into the reaction vessel, add 15 mol of thionyl chloride dropwise in a constant temperature water bath, stir and react at 80°C for 2 hours, and synthesize chlorooctyl Base phenol polyoxyethylene ether, get the obtained 7.5mol chlorooctylphenol polyoxyethylene ether and join in water, the mass ratio of chlorooctylphenol polyoxyethylene ether and water is 1:1.5, then add 5mol sulfonating agent Sodium sulfite (Na 2 SO 3 ), placed in a high-pressure reactor, and reacted at 150°C for 8 hours under vigorous stirring to obtain a light yellow viscous substance. The crude product was dissolved in a mixture of isopropanol and water with a volume ratio of 2:1, and then extracted with petroleum ether , to remove unreacted raw materials and other oil-soluble impurities, separate the lower layer, distill under reduced pressure, and dry in v...

Embodiment 2

[0049] Embodiment 2 Microemulsion 1

[0050] With 30g of cyhalofop-ethyl, 45g of imazethapyr, 10g of methylsulfuron-methyl, 15g of surfactant prepared in embodiment 1, 250g of emulsifying agent diisooctyl sodium sulfonate, 150g of cosolvent ethanol, antifreeze Put 40g of glycerin and 30g of synergist into the reaction kettle, stir evenly and completely dissolve, slowly add 800g of water, continue mixing and stirring for 2h, and obtain microemulsion.

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 provides a herbicide compound specially used for cogon weeds. The herbicide compound comprises the following raw materials: effective active components and a surface active agent, wherein the effective active components comprise cyhalofop-butyl, imazapic and mesosulfuron. The herbicide compound has a very good weeding effect on the cogon weeds and is safe and efficient; moreover, the drug degradation effect is good, and drug residue is less.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a herbicide compound and a herbicide microemulsion for removing weeds in blueberry fields. Background technique [0002] Alternative names for weeds: cochlea, chrysanthemum, thatch, orchid root, Latin scientific name Imperatacylindrica (Linn.Beauv.) Gramineae and Imperata coronata are perennial herbs with thick and long rhizomes. Culms erect, 30-80 cm tall, with 1-3 nodes, nodes glabrous. The rhizome can be used as medicine. During the planting process, blueberries are often harmed by weeds in the field. Imperata coronata competes with blueberries for fertilizer and water, and is also easy to spread diseases and insect pests, affecting the yield and quality of blueberries. General weeds and cocoon weeds can be manually removed or weeded in combination with field management processes such as fertilization and irrigation, but manual weeding is labor-intensive and time-consum...

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
IPC IPC(8): A01N47/36A01P13/00A01N43/50A01N39/04
Inventor秦赤杨春香
OwnerANHUI JINSHUIYUAN ECOLOGICAL AGRI