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頁籤選單縮合
題名 | 栽植密度及氮素用量對芋生長及產量之效應=Effect of Planting Density and Application Rates of Nitrogen on the Growth and Yield of Taro |
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作者 | 莊浚釗; | 書刊名 | 桃園區農業改良場研究彙報 |
卷期 | 51 2002.12[民91.12] |
頁次 | 頁13-19 |
分類號 | 434.336 |
關鍵詞 | 芋; 栽植密度; 氮素用量; Taro; Planting density; Rates of nitrogen; |
語文 | 中文(Chinese) |
中文摘要 | 本試驗以栽植密度80××60cm、60×60cm、60×40cm三級為主處理,氮素用量300、600、900kg/ha三級為副處理,探討栽植密度及氮素用量對芋生長及產量之效應,期提供農民栽培及肥培管理參採。試驗結果顯示,芋栽植密度80×60cm處理之株高137cm及葉展幅39cm最高,塊莖單粒重平均為747g,惟其產量因種植株數較少,僅12.5t/ha,60×40cm處理之產量為16.1 t/ha最高,較80×60cm處理高出3.6 t/ha,差異達29%,但其塊莖單粒重平均僅538g。氮素施用900kg/ha處理,株高139cm及葉展幅37.3cm最高,但塊莖單粒重平均僅615g,產量為13.7 t/ha,產量以600kg/ha處理14.6 t/ha為最高,較氮素施用300kg/ha處理13.4 t/ha高出1.2t/ha差異達9%。因此,依據試驗結果及考量成本效益,推薦芋適宜的栽植密度為60×40cm,氮素施用量則為600kg/ha。 |
英文摘要 | This experiment was conducted to determine the effects of planting density and application rates of nitrogen on the growth and yield of taro. The results showed that the plant height and leaf width of taro, planted by 80×60 cm, which were 137 cm and 39 cm, respectively, were the highest among the treatments, the single tuber weight of taro was 747g, the yield of taro was only 12.5 t/ha due to the lower population. For 60×40 cm the yield of taro was 16.1 t/ha, which was 3.6 t/ha higher than that for 80×60 cm. However, the single tuber weight of taro with 538 g was the lowest among the treatments. The plant height and leaf width of taro for the treatment of 900 kg/ha of nitrogen were 139 cm and 37.3 cm, respectively, while the single tuber weight of taro was 615 g and the yield was 13.7 t/ha. The yield of taro with the application of 600 kg/ha of nitrogen was 14.6 t/ha and 1.2t/ha higher than that treated with 300 kg/ha of nitrogen. Based on the experimental results, it is suggested that the suitable planting density and application rate of nitrogen for taro be 60×40 cm and 600 kg/ha, respectively . |
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