Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-stability herbicide for paddy field and preparation method thereof

A high stability, paddy field technology, applied in herbicides and algicides, botany equipment and methods, chemicals for biological control, etc., can solve problems such as poor stability, difficult to degrade, and single active component , to achieve the effect of maintaining long-term storage, slowing down drug resistance, and reducing the amount of use

Pending Publication Date: 2022-05-13
华丰作物科技(黑龙江)有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, commonly used herbicides are organic compounds. For example, Chinese patent (application number: 201910349960.1, publication number: CN110024788A) discloses a herbicide compounded with bicyclic sulcotrione for paddy fields, including bicyclic sulcotrione, pretilachlor, and diclofenac. Ether, adjuvant and carrier, using a compound herbicide, overcomes the deficiency that bicyclic sulcotrione has a poor control effect on broad-leaf grass. The herbicide has a wide range of herbicides and a small amount of herbicides, but its herbicide speed is relatively slow , and not easy to degrade
Chinese patent (application number: 201710284574.X, publication number: CN106973918A) discloses a herbicide composition containing oxaziclozone and promethachlor and its application, including oxaziclozone and promethachlor, the The control effect of herbicides is better than the activity when used alone, slowing down the emergence of weed resistance, and is safe for crops; however, this type of herbicide has a single active component, which cannot meet the weeding during the entire growth process of rice, and the active component is prone to occur failure, poor stability

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
  • High-stability herbicide for paddy field and preparation method thereof
  • High-stability herbicide for paddy field and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A herbicide with high stability for paddy fields of the present invention is composed of the following components according to the mass percentage: 10% of pyrizachlor, 10% of pretilachlor, 9% of bensulfuron-methyl, 5% of inorganic salt, dodecyl Sodium benzenesulfonate 0.2%, fulvic acid 2%, dispersant 1%, antifreeze agent 0.2%, solid hydrotalcite carrier 1%, thickener 0.4%, binder 0.5%, water 15%, balance It is an oily solvent, and the sum of the mass percentages of the above components is 100%.

[0042] The inorganic salt is magnesium sulfate; the dispersant is sodium lignosulfonate; the antifreeze agent is ethylene glycol; the thickener is hydroxyethyl cellulose and sodium polyacrylate with a mass ratio of 1:2; the binder is modified corn starch;

[0043] The oily solvent is dimethyl phthalate and methyl oleate with a volume ratio of 2:1;

[0044] A preparation method of a high-stability paddy herbicide, specifically implemented according to the following steps:

[...

Embodiment 2

[0053] A herbicide with high stability for paddy fields of the present invention is composed of the following components according to the mass percentage: pyrizachlor 12%, pretilachlor 10-%, bensulfuron-methyl 8%, inorganic salt 6%, dodecane Sodium phenyl sulfonate 0.2%, fulvic acid 1.5%, dispersant 0.5%, antifreeze agent 0.5%, solid hydrotalcite carrier 2.5%, thickener 1%, binder 1%, water 12%, remaining The amount is an oily solvent, and the sum of the mass percentages of the above components is 100%.

[0054] The inorganic salt is a combination of potassium nitrate and ferrous sulfate with a mass ratio of 1:1; the dispersant is calcium lignosulfonate; the antifreeze agent is glycerin; the thickener is hydroxyethyl cellulose and the binder is polyacrylic acid ester;

[0055] The oily solvent is dimethyl phthalate and xylene with a volume ratio of 1:1.5;

[0056] A preparation method of a high-stability paddy herbicide, specifically implemented according to the following st...

Embodiment 3

[0065] A herbicide with high stability for paddy fields of the present invention is composed of the following components according to the mass percentage: pyrizachlor 15%, pretilachlor 11%, bensulfuron-methyl 5%, inorganic salt 7%, dodecyl Sodium benzenesulfonate 0.5%, fulvic acid 2%, dispersant 1.2%, antifreeze agent 0.6%, solid hydrotalcite carrier 3%, thickener 1%, binder 0.8%, water 10%, balance It is an oily solvent; the sum of the mass percentages of the above components is 100%.

[0066] The inorganic salt is potassium chloride; the dispersant is magnesium lignosulfonate; the antifreeze agent is propylene glycol; the thickener is sodium polyacrylate and polyvinylpyrrolidone with a mass ratio of 2:1; the binder is alkylaryl polyoxygen ethyl ether;

[0067] The oily solvent is methyl oleate and xylene with a volume ratio of 2:1;

[0068] The preparation method of a kind of herbicide for high stability paddy field of the present invention is specifically implemented acco...

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 high-stability herbicide for paddy fields, which is prepared from the following components in percentage by mass: 10 to 15 percent of pyriminobac-methyl, 10 to 12 percent of pretilachlor, 4 to 9 percent of bensulfuron methyl, 5 to 8 percent of inorganic salt, 0.2 to 0.5 percent of sodium dodecyl benzene sulfonate, 0.5 to 2.5 percent of fulvic acid, 0.5 to 1.5 percent of dispersing agent, 0.2 to 0.8 percent of antifreeze agent, 1 to 4 percent of hydrotalcite-like carrier, 0.4 to 1.2 percent of thickening agent, 0.5 to 1 percent of binding agent, 10 to 15 percent of water and the balance of oily solvent, the sum of the mass percentages of the components is 100%. The invention also discloses a preparation method of the herbicide. According to the weeding composition, pyriminobac-methyl, pretilachlor and bensulfuron methyl are used as active components, and after compounding, the pesticide resistance of weeds is slowed down through the synergistic effect of different effective components; in addition, by adding the anti-freezing agent, the thickening agent and the dispersing agent, the stability of the herbicide is improved, and it is guaranteed that all performance indexes meet the requirements within the period of validity.

Description

technical field [0001] The invention belongs to the technical field of preparation technology of agricultural medicines, and in particular relates to a herbicide with high stability for paddy fields, and also relates to a preparation method of the herbicide for paddy fields. Background technique [0002] Weeds in paddy fields compete with rice for fertilizer, glory, and space, resulting in poor growth of rice and a decline in yield and quality, which has become one of the main factors affecting rice production. In recent years, with the change of grass phase of weeds in paddy fields, it is more and more difficult to control weeds. At present, there are nearly 40 species of weeds in paddy fields, and the grass weeds with high occurrence frequency include barnyard grass, Qianjinzi, paspalum, Lishihe, weedy rice, and false rice; Cyperaceae weeds include sedge , water three-edge, firefly (tuber and seed propagation), water sedge, flat stalk grass, cow hair grass; Arrowhead mus...

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 Applications(China)
IPC IPC(8): A01N43/54A01N37/22A01N47/36A01N25/08A01N25/30A01N25/04A01P13/00
CPCA01N43/54A01N37/22A01N47/36A01N25/08A01N25/30A01N25/04
Inventor 赵殿生李梁付永利李金娟刘品志
Owner 华丰作物科技(黑龙江)有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products