Phosphate retention and extractability in soils of the humid zone in West Africa

dc.contributor.authorAbekoe, M.K.
dc.contributor.authorSahrawat, K.L.
dc.date.accessioned2019-02-25T10:18:27Z
dc.date.available2019-02-25T10:18:27Z
dc.date.issued2001-07
dc.description.abstractPhosphate adsorption and desorption studies provide insight for developing P management strategies. Very few studies have concentrated on P desorption which provides information on the reversibility of adsorbed P. Phosphate adsorption and desorption studies were carried out on seven rice-growing soils from three countries in West Africa, with the objective of relating these processes to P management strategies for the soils. The standard P requirement (SPR) of soils, defined as the amount of P to be added to attain an equilibrium solution concentration of 0.2 mg P 1-1, varied from 42 to 175 mg P kg-1. Out of the seven soils, four required low amounts and the other three needed relatively higher P applications. The extractability of the adsorbed P in different extractants was: 0.01 M KCl 32-78%, Olsen P 21-112%, and Bray 1 P 15-40%. Differences in the amounts of P desorbed by the soils suggested that the critical P levels needed for P management must be different. Management options to increase P availability in the soils are suggested. © 2001 Elsevier Science B.V.en_US
dc.identifier.otherVolume 102, Issues 1–2, Pages 175-187
dc.identifier.otherhttps://doi.org/10.1016/S0016-7061(00)00110-5
dc.identifier.urihttp://ugspace.ug.edu.gh/handle/123456789/28356
dc.language.isoenen_US
dc.publisherGeodermaen_US
dc.subjectAdsorptionen_US
dc.subjectDesorptionen_US
dc.subjectExtractability of Pen_US
dc.subjectHumid zoneen_US
dc.subjectPhosphorusen_US
dc.subjectSoilsen_US
dc.titlePhosphate retention and extractability in soils of the humid zone in West Africaen_US
dc.typeArticleen_US

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