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題名 | 甘藍施用萌後除草劑Tepraloxydim對禾本科雜草的防除效果=Efficacy of Tepraloxydim for Postemergence Grass Control in Cabbage Field |
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作者姓名(中文) | 蕭政弘; 馮永富; 邱怡詮; 邱建中; | 書刊名 | 中華民國雜草學會會刊 |
卷期 | 22:1 2001.06[民90.06] |
頁次 | 頁45-52 |
分類號 | 433.85 |
關鍵詞 | 甘藍; 萌後除草劑; 禾本科雜草; Cabbage; Postemergence herbicide; Grasses; |
語文 | 中文(Chinese) |
中文摘要 | 本試驗的目的在於評估萌後除草劑tepraloxydim 噴施後,對甘藍田禾本科雜草的防除效果。秋作試驗分別於桃園、台中及台南三個試區進行。甘藍種植後,田間禾本科雜草3 至6 薰齡時,每公頃分別以1.0 公升及1. 5 公升之5.3% tepraloxydim 乳劑(有效成分施用量為每公頃53.0 及79.5 公克) ,稀釋至600 公升,全面均勻噴施。對甘藍無藥害產生,其生育及產量均不受影響,對甘藍圍常見之牛筋草(Eleusine indica (L.) Gaertn.) 、馬唐( Digitariaadscendens (H. K. B.) Henr.) 、芒稜(Echinochloa colona (L.) Link) 等禾本科雜草的防除效果良好,但對闊葉類及莎草料雜草則無防除效果。綜合桃園、台中及台南等三處試驗結果,在顧及農民經濟成本及環保考量下,甘藍田可於移植後,禾本科雜草3-6 葉峙,每公頃施用5.3% tepraloxydim 乳劑1. 0 公升,全面均勻噴施。 |
英文摘要 | This experiment was conducted in fall crop season 2000 at three 10cations(Taoyuan,Taichung,Tainan)to evaluate the weed control efficacy of postemergence herbicide tepraloxydim in cabbage(Brassica oleracea L. Capitata Group)field. Tepraloxydim was applied to 3-61eaf stage of grass at rate of 53.0g and 79.5g ai ha- 1 ( 1.0L and1.5L ha-1 of 5.3% EC)and diluted to 600 L ha-1 with water, respectively. This herbicide was found significantly and effectively for goosegrass(Eleusine indica(L. )Gaertn. ),crabgrass (Digitaria adscendens(H.K. B.) Henr.)and junglerice(Echinochloa colona(L.)Link)control ,but no effect in broad leaf weeds and Cyperaceae . There was no herbicide lllJury found in cabbage .Cabbage yield was not affected by tepraloxydim application .According to the resu1ts and based on cost consideration, it is suggested that 5.3 % tepraloxydim EC at 1.0 L ha-1 (53.0g ai ha- 1)and diluted to 600 L ha-1 with water can be used for grass weed control in cabbage. |
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