水稲用選択性除草剤シハロホップブチルEW製剤の除草効果
書誌事項
- タイトル別名
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- Herbicidal Activity on the EW Formulation of the Selective Rice Herbicide Cyhalofop Butyl.
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説明
Cyhalofop butyl, [R-(+)-n-butyl-2-(4-(2-fluoro-4-cyanophenoxy) phenoxy) propionate] is a selective rice graminicide which can control up to the 5-6 leaf stage of Echinochloa crus-galli by foliar application. Japanese agricultural practice requires development of a granule formulation of cyhalofop butyl. In addition to this granule formulation which is applied to paddy water at about the 3 leaf stage, an EW (emulsion, oil in water) formulation has been intensively studied for foliar application at the late stage, i. e., the 5 leaf stage, as a “rescue” treatment. The herbicidal activity of cyhalofop butyl EW formulation equals the cyhalofop butyl EC (emulsifiable concentrate) formulation, and can control the 5-6 leaf stage of this plant at 240g ai/ha. To obtain stable efficacy, a 500-1000l/ha spray solution of cyhalofop butyl EW formulation is recommended. The results obtained suggest that cyhalofop butyl EW formulation is a promising rice herbicide by which to control the late leaf stage of Echinochloa crus-galli in terms of high biological activity and crop safety.
収録刊行物
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- 雑草研究
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雑草研究 42 (1), 1-7, 1997
日本雑草学会
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詳細情報 詳細情報について
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- CRID
- 1390282679257753984
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- NII論文ID
- 130003811233
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- ISSN
- 18824757
- 0372798X
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可