頁籤選單縮合
題 名 | 有機農園土壤及灌溉水品質評估=Assessment of the Quality of Soil and Irrigation Water on Organic Farming Fields |
---|---|
作 者 | 王斐能; 羅秋雄; | 書刊名 | 桃園區農業改良場研究彙報 |
卷 期 | 41 2000.06[民89.06] |
頁 次 | 頁17-26 |
分類號 | 434.22 |
關鍵詞 | 有機栽培; 土壤肥力; 灌溉水質; Organic farming; Soil fertility; Irrigation water quality; |
語 文 | 中文(Chinese) |
中文摘要 | 為評估轄區內若干有機農園土壤與灌溉水之品質,本試驗共取土壤樣品63件及權概水樣品64件,檢測酸鹼度(pH)、電導度(EC)、有機質、有效性養分(磷、鉀、鈣、鎂)及重金屬(錳、銅、鋅、鉛、鎳、鉻、鎘)含量。結果顯示:土壤樣品方面,pH值48%偏酸,11%偏鹼;有效性磷66.7%偏高,12.7%偏低;有效性鉀66.7%偏高;有效性鈣76.2%偏高,15.9%偏低;有效性鎂73%偏高,14.3%偏低;EC值8%偏高;有機質9.5%偏低;重金屬僅l件鋅偏高(1.6%),其餘均不超過限定範圍。灌溉水質方面,pH值12.5%偏酸,僅l件EC值偏高(1.6%),重金屬含量均在限定範圍內。由上述結果得知,有機農園灌溉水問題比土壤肥培管理問題小,而在肥培管理上又以pH值及巨量元素(磷、鉀、鈣、鎂)之管理較需要解決。 |
英文摘要 | Sixty three soil samples and 64 water samples collected from the organic farming fields in this district area were analyzed to determine the quality of soil and irrigation water on the farms. Items of analysis were soil acidity (pH), electric conductance (EC), organic matter, available nutrients (P, K, Ca, Mg) and heavy metals (Mn, Cu, Zn, Pb, Ni, Cr, Cd). The results of soil analysis indicated that as compared to allowable level, 48% had pH value that were slightly low and 11 % were slightly high; 66.7% available phosphorous were slightly high and 12.7% were slightly low; 66.7% available potassium were slightly high; 76.2% available calcium were slightly high and 15.9% were slightly low; 73% available magnesium were slightly high and 14.3% were slightly low; 8% EC values were slightly high; 9.5% organic matter contents were slightly low. In terms of heavy metal content, only 1.6% (one sample) has a very high level of zinc, the others were under the allowable level. The results of irrigation water analysis indicated that 12.5% had pH values slightly lower than usual; 1.6% EC value were slightly high. AII the heavy metal contents were under the allowable level. The results of the experiment indicated that soil and fertilizer management were more important than irrigation water management in the organic farming fields. Among the fertilization management, pH and macro nutrient management need to be solved immediately. |
本系統中英文摘要資訊取自各篇刊載內容。