EDTA extractable phosphorus in soils as related to available and inorganic phosphorus forms
- 31 December 1976
- journal article
- research article
- Published by Taylor & Francis in Communications in Soil Science and Plant Analysis
- Vol. 8 (4), 281-287
- https://doi.org/10.1080/00103627709366721
Abstract
Twenty surface soil samples, representing two major soil orders alfisols and vertisols were extracted with 0.01N Na2 EDTA solution (pH 4.8) at a soil/solution ratio of 1:25. Phosphorus in the extract was determined following ammonium molybdate‐stannous chloride colorimetric method. The EDTA extractable P showed significant positive correlations with extractable P according to the Olsen, Morgan, Bray 1 and 2 and also with inorganic phosphorus fractions associated with Al, Ca and Fe.Keywords
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