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Method for controlling weed in wet rice cultivation

A technology for rice cultivation and weeds, which is applied in the field of preventing and controlling weeds in rice cultivation, and can solve the problems of incomplete performance of herbicidal compounds and the like

Active Publication Date: 2013-12-04
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Many herbicidal compounds are known as active ingredients of herbicides for controlling weeds, but the performance of herbicidal compounds cannot always be fully utilized depending on how the herbicide is used (see Non-Patent Document 1)

Method used

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  • Method for controlling weed in wet rice cultivation
  • Method for controlling weed in wet rice cultivation
  • Method for controlling weed in wet rice cultivation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0111] The following examples including formulation examples and method examples of the present invention serve to illustrate the present invention in more detail and are not intended to limit the present invention. In the examples of the method of the present invention, the term "ha" means hectare (ie 10000m 2 ).

preparation example 1

[0113] The following ingredients were mixed, and then the mixture was ground by wet grinding to obtain a flowable agent.

[0114] Compound 1: 10 parts by weight

[0115] Polyoxyethylene sorbitan monooleate: 3 parts by weight

[0116] Hydroxymethylcellulose: 3 parts by weight

[0117] Water: 84 parts by weight

preparation example 2

[0119] The following ingredients were mixed, and then the mixture was ground by dry milling to obtain a wettable powder.

[0120] Compound 1: 10 parts by weight

[0121] Calcium lignosulfonate: 3 parts by weight

[0122] Sodium lauryl sulfate: 2 parts by weight

[0123] Synthetic silica hydrate: 85 parts by weight

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PUM

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Abstract

The present invention provides a method for controlling weeds in paddy rice cultivation, which comprises steps of: applying a water-diluted solution comprising a herbicidal compound such as 1-(2-chloro-6-propylimidazo[1,2-b]pyridazin-3-ylsulfonyl)-3-(4,6-dimethoxypyrimidin-2-yl)urea to a paddy field; and flooding the paddy field within the first week after the application of the herbicidal compound.

Description

technical field [0001] The present invention relates to a method for controlling weeds in rice cultivation. Background technique [0002] Many herbicidal compounds are known as active ingredients of herbicides for controlling weeds, but the performance of the herbicidal compounds cannot always be fully utilized depending on how the herbicide is used (see Non-Patent Document 1). [0003] reference list [0004] (non-patent literature) [0005] Non-Patent Document 1: Crop Protection Handbook, Volume 95 (2009) Summary of the invention [0006] (problem to be solved by the present invention) [0007] An object of the present invention is to provide a method for controlling weeds in rice cultivation, which has an excellent effect on controlling weeds. [0008] (means to solve the problem) [0009] The inventors of the present invention have studied and found a method for controlling plants (ie, weeds) that adversely affect crops in rice cultivation, which method has an exc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/66A01N25/04A01N43/54A01N47/36A01P13/02A01G22/22
CPCA01N43/66A01N43/54A01N47/36A01N25/00A01N25/02A01N25/04
Inventor 池田源稻叶绚子
Owner SUMITOMO CHEM CO LTD