"ExchBases_ph7-nh4oac" . "ExchBases_ph7-nh4oac"@en . . . . "Exch bases (Ca, Mg, K, Na) buffered at pH 7, in 1M NH4OAc" . . . "Leenaars J.G.B., A.J.M. van Oostrum and M. Ruiperez Gonzalez, 2014. Africa Soil Profiles Database, Version 1.2. A compilation of georeferenced and standardised legacy soil profile data for Sub-Saharan Africa (with dataset). ISRIC Report 2014/01. Africa Soil Information Service (AfSIS) project and ISRIC - World Soil Information, Wageningen, the Netherlands. See Annex 4." .