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Pedogenic differences between two adjacent basalt-derived soil profiles 1. Textural and chemical characteristics
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C. Bühmann --- , Republic of South Africa W. F.A. Kirsten --- , Republic of South Africa D.G. Paterson --- , Republic of South Africa M.E. Sobczyk --- , Republic of South AfricaEleven soil samples derived from a black vertisol (Arcadia form) and a red alfisol (Shortlands form) were investigated by means of X-ray fluorescence as well as standard soil chemical and physical analyses. The profiles developed from Jurassic basalt under identical... -
Pedogenic differences between two adjacent basalt-derived soil profiles 2. Mineralogical characteristics
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C. Bühmann --- , Republic of South Africa D.G. Paterson --- , Republic of South Africa W. F.A. Kirsten --- , Republic of South AfricaThe mineralogical composition of a black vertisol (Arcadia form) and a red alfisol (Shortlands form) profile, derived from Jurassic basalt and situated 35 m apart, has been determined by means of X-ray diffraction analysis. The non-clay fractions of the least-weathered... -
Changes in inorganic phosphorus following incubation of some Zambian soils
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: K. Kumoyo --- Department of Soil Science, Zambia O.A. Yerokun --- Department of Soil Science, Zambia M.I. Damaseke --- , ZambiaPhosphorus (P) deficiency is a major problem of many Zambian soils and annual applications of the recommended 60 kg P2O5 ha−1 (26 kg−1 ha−1) do not seem to reverse this trend. In order to better understand the dynamics of P...