Olani, Nelson. Phosphorus status and sorption characteristics in some vertisols of Uganda [microfilm] / by Nelson Olani. - Kampala, Uganda: Makerere University Library Microfilming Unit, 2002. - 3 titles on 1 microfilm reel; 16 mm. Thesis (M. Sc. Agric.) - Makerere University, 1998. Includes bibliographical references. Subjects--Topical Terms: Verisols-- Uganda.Soil absorption and adsorption.