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THE INFLUENCE OF ACACIA SENEGAL ON THE FERTILITY OF A SAND SHEET ('GOZ') SOIL IN THE CENTRAL SUDAN
P. A. GERAKIS and C. Z. TSANGARAKIS
Plant and Soil
Vol. 33, No. 1 (August 1970), pp. 81-86
Published by: Springer
Stable URL: http://www.jstor.org/stable/42946773
Page Count: 6
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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 from A . 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.
Plant and Soil © 1970 Springer