Soil development and fertility characteristics of a volcanic slope in Mindanao, the Philippines
D. Poudel; L. West
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Soil Science Society of America Journal
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This study analyzes thirteen pedons from four geomorphic regions (alluvial terraces, lower footslopes, upper footslopes, mountains) to investigate the relationship between soil development and soil fertility properties. The mountain soils wer Utisols and Inceptisols, while the soils of the other three regions were Oxisols. The study assessed the soil components, mineral composition, pH, phosphorus fixation, potassium availability and buffering capacity, cation exchange capacity (CEC), effective cation-exchange capacity (ECEC), and base saturation.