Leaf and root samples from 120 citrus trees, representing four species from each of six different locations in Egypt, were assayed for mineral elements with an emission spectrograph. The areas represented newly reclaimed lands as well as established orchards in the Nile River Delta. There were symptoms of Zn, Mn, and Fe deficiencies at some, but not all, of the locations. There was a negative correlation between root and leaf concentrations for Mg and positive correlations for B, Fe, P, and K. There were strong positive and negative correlations between plant concentrations of some nutrients and certain soil characteristics (percent soil organic matter, pH in paste, electrical conductivity on a saturation extract, and percent CaCO3). Stepwise regression analyses were therefore made among the soil and plant variables. This test indicated that the soil CaCO3level was responsible for most of the variation in Fe, Mn, and Al in leaves. Soil organic matter or electrical conductivity of the saturation extract was responsible for most of the variability in major cation levels in leaves. Most of the variability in leaf P was due to soil pH rather than percent CaCO3. The stepwise regression suggested that the concentration of leaf Al accounted for some of the variability in leaf Mn; otherwise, no other element in leaves appeared in the stepwise regressions indicating that they were related to the soil variables and were not the result of nutrient interactions.