Precision of the Anion Exchange Membrane Phosphorus Technique When Using a Range of Low-Ionic Solutions in Analysis of Heterogeneous Mine Soils
| Autor: | Jessica Drake, Bennett MacDonald, Lorna Fitzsimons |
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| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Communications in Soil Science and Plant Analysis. 45:829-843 |
| ISSN: | 1532-2416 0010-3624 |
| Popis: | The anion exchangeable membrane phosphorus (P) method can be used across a range of soils to analyze P for vegetation and has the potential to be applied to heterogeneous mine soils. Enhanced small-scale variability in mine soils can potentially cause enhanced and irregular P fluctuations during extraction, leading to errors in analysis of exchangeable membrane P. Anion exchange membranes in combination with low ionic solutions may be able to reduce this error and improve precision of the measurement. The authors undertake a full inorganic P fractionation to determine if the ionic solutions [deoionized water (DI), 0.01 M calcium chloride (CaCl2), potassium chloride (KCl), and ammonium fluoride (NH4F)] change the anion exchangeable membrane–extractable P and in turn the fractionation of P. In addition, the relationship between anion exchangeable membrane P and P-buffering index is analyzed to ascertain the accuracy of the methods. The precision and effect on subsequent P fractions for each extracting reage... |
| Databáze: | OpenAIRE |
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