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

Compound herbicide containing dicamba and preparation method thereof

A dicamba and herbicide technology, applied in the field of pesticides, can solve the problems of limited herbicidal spectrum, complex process, long-lasting effect in the field, etc., to achieve the effect of improving the weeding effect, shortening the technological process, and avoiding residual toxicity

Inactive Publication Date: 2020-10-13
ZHEJIANG PIONEER CROPSCI CO LTD
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a production method needs to be completed through two steps of sodium salt synthesis and granulation, which has the problem of complex process, and the method requires high equipment, but the conversion rate of raw materials is low, resulting in high production costs
[0005] 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

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
  • Compound herbicide containing dicamba and preparation method thereof
  • Compound herbicide containing dicamba and preparation method thereof
  • Compound herbicide containing dicamba and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: Herbicide containing 55% dicamba + 9.2% nicosulfuron + 2.3% rimsulfuron-methyl

[0034] The preparation method is as follows:

[0035] (1) Synthesis of dicamba sodium salt

[0036] Take 120 kg of dicamba technical and 35.2 kg of sodium carbonate, put them into a trough kneader, stir evenly, add 1.2 kg of water to continue kneading, leave it for about 60 minutes, and carry out rotary extrusion granulation.

[0037] Among them, the amount of sodium carbonate added is appropriately increased or decreased according to the change of the acidity of the original dicamba, and the pH of the sodium salt of dicamba is controlled between 7.0 and 9.0.

[0038] (2) Ingredients

[0039] Take the sample according to the following ingredient list:

[0040]

[0041] Accurately weigh the above materials (except dicamba sodium salt), mix well and set aside.

[0042] (3) Jet milling

[0043] The materials mixed in step (2) are pulverized in an airflow mill so that the fin...

Embodiment 2

[0048] Example 2: Herbicide containing 40% dicamba + 8% nicosulfuron + 2% rimsulfuron

[0049] The preparation method is as follows:

[0050] (1) Synthesis of dicamba sodium salt

[0051] Take 120 kg of dicamba technical and 35.2 kg of sodium carbonate, put them into a trough kneader, stir evenly, add 1.2 kg of water to continue kneading, leave it for about 60 minutes, and carry out rotary extrusion granulation.

[0052] Among them, the amount of sodium carbonate added is appropriately increased or decreased according to the change of the acidity of the original dicamba, and the pH of the sodium salt of dicamba is controlled between 7.0 and 9.0.

[0053] (2) Ingredients

[0054] Take the sample according to the following ingredient list:

[0055]

[0056] Accurately weigh the above materials (except dicamba sodium salt), mix well and set aside.

[0057] Other steps are identical with embodiment 1.

Embodiment 3

[0058] Embodiment 3: herbicide contains 60% dicamba+15% nicosulfuron

[0059] The preparation method is as follows:

[0060] (1) Synthesis of dicamba sodium salt

[0061] Take 120 kg of dicamba technical and 35.2 kg of sodium carbonate, put them into a trough kneader, stir evenly, add 1.2 kg of water to continue kneading, leave it for about 60 minutes, and carry out rotary extrusion granulation.

[0062] Among them, the amount of sodium carbonate added is appropriately increased or decreased according to the change of the acidity of the original dicamba, and the pH of the sodium salt of dicamba is controlled between 7.0 and 9.0.

[0063] (2) Ingredients

[0064] Take the sample according to the following ingredient list:

[0065]

[0066] Accurately weigh the above materials (except dicamba sodium salt), mix well and set aside.

[0067] Other steps are identical with embodiment 1.

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 dicamba. The compound herbicide comprises a first effective component and a second effective component, wherein the first effective component isdicamba, and the mass percentage of the first effective component is 40-60%; and the second effective component is one or a mixture of two selected from the group consisting of nicosulfuron and rimsulfuron, the mass percentage of nicosulfuron is 0-15%, and the mass percentage of rimsulfuron is 0-15%. The compound herbicide also comprises the following components in percentage by mass: 1-4% of a wetting agent, 1-15% of a dispersing agent, 0-10% of an acid-base regulator and 0-5% of a binder, with the balance being a filler. According to the herbicide provided by the invention, dicamba and oneor two selected from nicosulfuron and rimsulfuron are compounded according to different proportions, so a herbicide controlling spectrum is expanded, weeding effect is obviously improved, and the possibility of phytotoxicity to crops in the season and residual toxicity to subsequent crops is also avoided.

Description

technical field [0001] The invention relates to a compound herbicide containing dicamba and a preparation method thereof, belonging to the technical field of pesticides. Background technique [0002] In recent years, the development direction of pesticides is to embody high efficiency, low toxicity, low residue and no pollution. The specific performance is high safety, high biological activity, and high selectivity. Therefore, it is necessary to continue to optimize the performance of pesticide products to achieve high efficiency, low toxicity, and no pollution. pollution requirements. The development of compound and mixed pesticides is the preferred and effective way at present. By adjusting the ratio of different pesticides, the pesticides with complementary properties can get the best synergistic effect. [0003] Dicamba, also known as Baicao, belongs to the series of benzoic acid herbicides. It has systemic conduction effect and has a significant control effect on annua...

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): A01N37/40A01N47/36A01P13/00
CPCA01N37/40A01N47/36
Inventor 李明
Owner ZHEJIANG PIONEER CROPSCI CO LTD
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com