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題名 | 森林土壤有效養分測定方法之比較=Comparison of Testing Methods for Available Nutrients of Forest Soil |
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作者 | 程煒兒; 洪富文; 林光清; Cheng, Wei-er; Horng, Fu-wen; Lin, Kung-ching; |
期刊 | 臺灣林業科學 |
出版日期 | 19970600 |
卷期 | 12:2 1997.06[民86.06] |
頁次 | 頁177-188 |
分類號 | 436.193 |
語文 | chi |
關鍵詞 | 土壤測定方法; 土壤有效性養分'; Soil testing method; Soil available nutrients; |
中文摘要 | 本研究旨在探討 Mehlich No.3 (M3),與 acidic ammonium acetate-EDTA (AA- EDTA) 兩方法取代慣用之 Bray No.1 及 neutral ammonium acetate (AA) 方法測定土壤肥 力之可行性。經測定 38 個土系之臺灣森林土壤結果顯示:分別以 M3,及 AA-EDTA 方法測 定土壤有效性磷、鉀、鈣、鎂含量與慣用之方法相比, 均成直線迴歸相關, 相關係數均在 0.9 以上,只有磷例外, 相關性達 0.1% 極顯著水準, 並由其迴歸方程式可推算 M3, 及 AA-EDTA 方法測值之肥力等級,作為植物有效養分元素狀況之指標。 |
英文摘要 | The purpose of this study was to study the possibility of using Mehlich No.3 (M3), and acidic ammonium acetate-EDTA (AA-EDTA) methods to replace the conventional methods of Bray No.1 and neutral ammonium acetate (AA) to test soil fertility. Thirty-eight soil series of Taiwan forest soil were selected for this study. The soil available phosphorus, potassium, calcium, and magnesium tested by M3 and AA-EDTA methods were linearly correlated to Bray No.1, and AA methods at the 0.1% significance level. The coefficients of correlation were all above 0.9 except for available phosphorus. The linear regression equations can be used to estimate the fertility level of soil tested by M3 and AA-EDTA methods, and we recommend their use as an index of the available nutrient status of soils. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。