Bar-Akiva, A., Division of Citriculture, The Volcani Center, Agricultural Research Organization, Bet Dagan, Israel
Hamou, M., Division of Citriculture, The Volcani Center, Agricultural Research Organization, Bet Dagan, Israel

In a fertilizer trial in a Valencia orange orchard, two soil types were distinguished: a poorly aerated loamy sand (A) and sandy clay loam (B). Mineral composition of leaves and fruit quality characteristics differed significantly in the two soil types, regardless of the fertilizer treatments. Fruits on the sandy clay loam were larger, had a thicker peel, and contained more total acids and vitamin C in the juice, and were less affected by a peel disorder (creasing). The leaves of such trees contained more K and Mg and less Ca and P. © 1974, Taylor & Francis Group, LLC. All rights reserved.