A herbicide for paddy fields

A herbicide, paddy field technology, applied in the directions of herbicides and algaecides, biocides, biocides, etc., can solve the problems of serious weed resistance, bad weed control effect, etc. , to achieve the effect of reducing the dosage, improving the control effect, and expanding the herbicidal spectrum

Inactive Publication Date: 2009-03-04
LIANBAO CROP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The single use of these two herbicides can only control grass weeds or broad-leaved weeds, but the control effect on the vicious weeds of paddy fields is poor.
Moreover, with the increase in the amount of herbicides used in rice fields, the resistance of weeds is becoming more and more serious, and the harm of vicious weeds such as Qianjinzi and barnyardgrass is also more serious.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0016] The herbicide is an emulsifiable concentrate, which consists of 1 part of active ingredients and 1 part of tristyrylphenol polyoxypropylene polyoxyethylene block polymer, which is mixed and stirred to obtain an emulsifiable concentrate preparation. According to actual needs, an appropriate amount of methanol and (or) xylene to make emulsifiable concentrate preparations.

Embodiment approach 2

[0018] The herbicide is an emulsifiable concentrate, and the emulsifiable concentrate preparation is obtained by mixing and stirring 80 parts of active ingredients and 20 parts of triphenylethylphenol polyoxypropylene polyoxyethylene block polymer. According to actual needs, an appropriate amount of methanol and (or) xylene to make emulsifiable concentrate preparations.

Embodiment approach 3

[0020] The herbicide is a water-dispersible granule, consisting of 10 parts of active ingredients, 0.1 part of alkylphenol polyoxyethylene ethers, 0.1 part of cross-linked polyvinylpyrrolidone, 5 parts of fatty alcohol and ethylene oxide The condensate and vinyl acetate resin, 0.1 part of release agent, and 1 part of carrier are mixed and granulated to make water-dispersible granules.

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PUM

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Abstract

A herbicide for paddy rice field contains pyrazosulfuron-ethyl, cyhalofop-butyl and assistant. It is applied only once.

Description

technical field [0001] The invention relates to a paddy field herbicide. Background technique [0002] Rice is a large food crop in my country, but the development of herbicides in rice fields is very slow. The cyhalofop-ethyl used is a diphenyl ether herbicide and is a selective herbicide for paddy fields. It can only be used for stem and leaf treatment, and the pre-emergence treatment is ineffective. , Applying pesticides at the 2-3 leaf stage of grass weeds. However, pyrazosulfuron-methyl is generally used 3-10 days after sowing, and it only has an inhibitory effect on barnyard grass. The separate use of these two herbicides can only control grass weeds or broad-leaved weeds, but the control effect on the vicious weeds of paddy fields, A. japonicus and barnyardgrass is not good. Moreover, with the increase in the amount of herbicides used in rice fields, the resistance of weeds is becoming more and more serious, and the harm of vicious weeds such as Qianjinzi and barny...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): A01N47/36A01N31/14A01P13/00
Inventor王洲
OwnerLIANBAO CROP TECH