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| 題 名 | 土壤-水份系中磷酸之平衡濃度=Equilibrium Phosphate Concentrations in some Soil-water Systems |
|---|---|
| 作 者 | 張守敬; | 書刊名 | 中華農學會報 |
| 卷 期 | 43 民52.09 |
| 頁 次 | 頁1-8 |
| 關鍵詞 | 土壤-水份系; 平衡濃度; 磷酸; |
| 語 文 | 中文(Chinese) |
| 英文摘要 | Four soils with different lime and phosphate contents were used in this experiment. Several soil-water suspensions were prepared with each soil at a ratio of 5 gm to 100 ml. The suspensions of each soil were adjusted into several pH values. The equilibrium concentrations of calcium, aluminum, iron and phosphate in the solutions were determined. The relationship between the concentration of phosphate and that of the respective cation was defined by the solubility product of the respective phophate, and by the chemical potential of phosphate and that of calcium, aluminum and ferric hydroxide. The deviation of the experimental results from those in literatures using a pure phosphate-water system was discussed. |
本系統中英文摘要資訊取自各篇刊載內容。