Herbicidal composition

A herbicide composition and weed technology, applied in the direction of herbicides, algicides, biocides, animal repellents, etc., can solve the problem of difficulty in achieving the best weed control effect, insufficient herbicidal spectrum, and crop safety Insufficient resistance and other problems, to achieve the effect of good control of harmful plants, reduce application rate, and long action time

Active Publication Date: 2013-09-04
JIANGSU ROTAM CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have shown that there are still some deficiencies in using promasulfuron-methyl alone as the active ingredient of herbicides, for example, the safety of crops is not high enough, the herbicidal spectrum is not wide enough, etc., which makes it difficult to achieve the best weed control effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] Example 1: 25% promethazone-methyl + +1% pyrazosulfuron-methyl oil suspension

[0092] Promasulfuron-methyl 25%

[0093] Pyrazosulfuron-methyl 1%

[0094] Sodium methylnaphthalenesulfonate formaldehyde condensate 10%

[0095] Bentonite 1%

[0096] Glycerol 5%

[0097] corn oil make up to 100%

[0098] Mix the active components, dispersant, wetting agent and corn oil according to the proportion of the formula, and grind and / or high-speed shear to obtain 25% promethazone-methyl+1% pyrazosulfuron-methyl oil suspending agent.

Embodiment 2

[0099] Example 2 10% promasulfuron-methyl+2% pyrazosulfuron-methyl wettable powder

[0100] Promasulfuron-methyl 10%

[0101] Pyrazosulfuron-methyl 2%

[0102] Sodium Lauryl Sulfate 10%

[0103] Sodium lignosulfonate 5%

[0104] Silica 10%

[0105] Kaolin supplemented to 100%

[0106] The active ingredients, various additives and fillers are mixed according to the ratio of the formula, and after being pulverized by an ultrafine grinder, 10% promethazone-methyl + 2% pyrazosulfuron-methyl wettable powder can be obtained.

[0107]

Embodiment 3

[0108] Example 3 1% promasulfuron-methyl+50% pyrazosulfuron-methyl wettable powder

[0109] Promethazone-methyl 1%

[0110] Pyrazosulfuron-methyl 50%

[0111] Calcium dodecylbenzenesulfonate 1%

[0112] Sodium lignosulfonate 2%

[0113] Silica make up to 100%

[0114] The active ingredient, various additives and fillers are mixed according to the ratio of the formula, and after being pulverized by an ultra-fine pulverizer, 1% promethazone-methyl+50% pyrazosulfuron-methyl wettable powder can be obtained.

[0115]

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Abstract

The invention relates to a herbicidal composition, and particularly relates to a herbicidal composition comprising propyrisulfuron and pyrazosulfuron, and an application thereof and a corresponding weed control method. The herbicidal composition comprises active components of propyrisulfuron and pyrazosulfuron, wherein a weight ratio of propyrisulfuron to pyrazosulfuron is 200 : 1-1 : 200. The herbicidal composition is used for controlling grassy weeds, broad leaf weeds and cyperaceae weeds in the rice fields in crop growth environment. Compared with an individually used herbicide, the herbicidal composition compounded by the propyrisulfuron and pyrazosulfuron enlarges herbicidal spectrum and significantly enhances a weed control effect because propyrisulfuron has a control capability for weeds having resistance to known sulfonylurea herbicides and binary compound of the two herbicides allows the herbicidal composition to have an enhanced effect.

Description

technical field [0001] The present invention relates to a herbicidal composition, in particular to a herbicidal composition containing promasulfuron-methyl and pyrazosulfuron-methyl and its use, and a corresponding weed control method. Background technique [0002] At present, in order to improve the growth quality of crops, the industry is constantly working on the development of herbicides with high herbicidal effect, wide herbicidal spectrum, low toxicity, low residue, and excellent crop selectivity. In the production environment of crops, long-term use of certain herbicides will cause certain weeds to develop resistance to the corresponding drugs. So far, many kinds of sulfonylurea compounds have been practically used in paddy fields, usually in the form of a composition formulation containing two or more active ingredients and various sulfonylureas effective for preventing gramineous weeds. Poaceae weed killer. In recent years, however, weeds resistant to sulfonylurea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01P13/00
Inventor 范文忠刘建华刘学军陈绍娥吴一凡刘智忠冯秀珍谭瑞成殷爱云罗昌炎
Owner JIANGSU ROTAM CHEM
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