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題 名 | 水耕蔬菜礦物質含量的探討=Studies on the Mineral Contents of Hydroponic Vegetables |
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作 者 | 曾政鴻; 金安兒; | 書刊名 | 農林學報 |
卷 期 | 50:1 2001.03[民90.03] |
頁 次 | 頁49-59 |
分類號 | 435.2 |
關鍵詞 | 水耕; 蔬菜; 礦物質; Hydroponics; Vegetable; Minerals; |
語 文 | 中文(Chinese) |
中文摘要 | 水耕蔬菜(hydroponic Vegetables)為臺灣近年來新興的種植作物,有關其栽培條件對 於其本身營成份變化量的影響仍有待探討。本研究即在探討不同營養液研物質濃度對所得蔬 菜礦物質含量的影響,並分析市販水耕與土植蔬菜二者間礦物質含量的差異。本研究蒐集市 販水耕與土植空心菜,並模擬皺葉白菜之水耕栽培,測定所得蔬菜樣品中之礦物質含量。針 對市售水耕與土植空心菜樣品,以及水耕模擬栽培之皺葉白菜樣品,利用原子吸收光譜儀測 定其K、Mg、Ca、Fe、Cu、Mn、Zn、Mo等礦物質的含量。對於水耕模擬栽培試驗中之培 養液,在栽培其中定期追蹤其中上述礦物質濃度及pH的變化。結果發現,蔬菜中礦物質含 量的多寡與其培液礦物質濃度大小並無明顯相關;但是培養液礦物質濃度高低對其生長的茂 盛與否卻有影響。在市售樣品的比較方面,兩者蔬菜之個別元素組成多寡雖互有差異,但整 體而言其礦物質含量亦差別不大。 |
英文摘要 | Nutrient solution composition exerts significant effects on the nutrient contents of hydroponic vegetables. In this study, mineral contents of market-sold hydropnic and soil-cultured water convolvulus samples were analyzed, and hydroponic culture experiment of curled Pak-Choi was conducted and cultured samples were collected for mineral contents analysis. Atomic absorption spectrophotometry was applied to measure the contents of minerals, i.e.K, Mg, Ca, Fe, Cu, Mn, Zn, Mo of market-sold hydroponic and soil-cultured water concolvulus samples as well as hydroponic curled Park-Choi. The variations of mineral concentrations and pH of the culture solutions used in the hydroponic experiments were tracked periodically. Results showed that there was no relationship existed between nutrient solution concentrations and vegetable mineral contents. However, the nutrient supply affected the growth of vegetables. Both market-sold samples had no remarkable difference in mineral compositions and contents. |
本系統中英文摘要資訊取自各篇刊載內容。