Toxicity and Accumulation of Salts in Citrus Trees on Various Rootstocks in Texas

years. Fertilizing once in the spring with a complete fertilizer with Uramite as the nitrogen source was satisfactory. On Lakeland soil Valencia and Hamlin orange tree growth was very good when about 1, 2, and 4 pounds of 8-2-8 inorganic fertilizer was applied in the first, second, and third seasons, respectively. Timing of applications of fertilizer also was not critical for young Valencia or Hamlin orange trees. No advantage in using more than 3 applications in any year was found. Two applications were satisfactory after the first year. Uramite was a satisfactory source of nitrogen when used in a single appli cation of a complete 8-2-8 fertilizer, but the trees became temporarily pale green in late