Summary
Acacia senegal increased total nitrogen and organic carbon while it had no effect on the soil texture, pH, available phosphorus and available potassium of a Sand Sheet soil. The higher nitrogen content in the topsoil may have been partly caused by symbiotic fixation. To minimise soil variability when conducting field trials in areas cleared fromA. senegal trees the uprooted tree patches must be avoided in plot layout and liberal amounts of nitrogen fertiliser and farmyard manure must be applied over the whole trial area when possible.
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References
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Paper based on investigations carried out as part of the U.N.S.F. ‘Land Use and Rural Water Development Research Project for Kordofan’ in 1962–1965 supervised by F.A.O. and the Sudan Government and contracted by Doxiadis Associates Int. Ltd. of Athens, Greece.
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Gerakis, P.A., Tsangarakis, C.Z. The influence of Acacia senegal on the fertility of a sand sheet (‘goz’) soil in the central Sudan. Plant Soil 33, 81–86 (1970). https://doi.org/10.1007/BF01378198
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DOI: https://doi.org/10.1007/BF01378198