Soil profile in the Eastern Gezira

Abstract

The distribution of salts in the soil is generally related to compactness of the soil profile as judged by the distribution of gypsum, of calcium carbonate aggregates and of soil colour. The relation already established between salt content and fertility is now expressed as a relation between compactness of profile and fertility. The data agree well with geological views as to the origin of this soil. Influences of which the soil profile is the product are also discussed. I am much indebted to Mr G. W. Grabham for practical instruction in field work and for information as to the origin of Gezira soil. I wish also to thank Dr A. F. Joseph for his interest in this work and for facilities placed at my disposal.