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除草劑Quizalofop-p-tefuryl對西瓜田雜草之防除效果

Evaluation of Quizalofop-p-tefuryl for Weed Control in Watermelon

摘要


本研究探討除草劑4.4% quizalofop-p-tefuryl EC,在臺灣地區不同氣候環境下施用,對西瓜園雜草之防除效果,及西瓜植株之藥害潛力,以訂定安全有效之使用方法,提供農民使用之依據。綜合桃園、台南及高雄區農業改良場之藥效試驗結果,測試藥劑quizalofop-p-tefuryl於禾本科雜草3-6葉時,以每公頃0.75公升及1.50公升全面均勻噴施,皆可有效防除芒稷、牛筋草、及稗草等禾本科雜草,但對闊葉及莎草科雜草之防除效果較差。同時對西瓜植株生育、採收果數及產量,並未引起株形異常、生長抑制及減產等藥害現象發生。

並列摘要


Quizalofop-p-tefuryl was evaluated in screening tests for potential use in watermelon. Field studies were conducted by Taoyuan, Tainan and Kaohsiung District Agricultural Research and Extension Stations to evaluate quizalofop-p-tefuryl for watermelon crop tolerance and post control of grasses. At 0.75 and 1.50L/ha, quizalofop-p-tefuryl exhibited good control of grass weeds as Echinochloa colona, E. crus-galli, and Eleusine indica. In the post-emergence screening test, quizalofop-p-tefuryl gave acceptable weed control with adequate crop safety.

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