Characterization and classification of some ironpan soils of Ghana

Comparison of International, National and Farmers' Classification Systems, Applied to Soils of the Western Dagomba District (Northern Ghana)

“…They are named after the village where the series first was recorded (Stobbs 1960;Brammer 1962;Obeng 1970;Serna and Van De Weg 1985). The series similar to Pl and P2 are locally important, but do not cover extensive areas of the Voltaian Shale formation.…”

Available and inorganic forms of phosphorus in selected Alfisols and Mollisols

“…However, there were marked irregularities in these patterns, partly reflecting differ ences in the Al/Fe ratio of the soil. Obeng (1970) found Fe-P as the dominant and Ga-P as the lowest IP form in pro files of highly weathered iron-pan soils. His findings re flected the fact that the deeply leached condition under which the soils have been developed has given rise to almost a com plete removal of bases, hence, the low Ca-P status of the soils, and obviously accumulation of resistant sesquioxide resulted in high Fe-P values.…”