MINERAL-COMPOSITION OF IRON CHLOROTIC CITRUS-LIMON L LEAVES

A field experiment was conducted to evaluate the effect of iron (Fe) c hlorosis on the mineral composition of lemon tree leaves cultivated in calcareous soil in the region of Murcia, Spain. A Fe-polyflavonoid wa s employed as fertilizer to control Fe deficiency. The evolution of th e leaf content in Fe, potassium (K), sodium (Na), magnesium (Mg), calc ium (Ca), phosphorus (P), manganese (Mn), and zinc (Zn) was monitored during all the sampling cycle. A high correspondence between total Fe and chlorophyll content could be appreciated. A multivariance analysis was performed with the data obtained, showing that Fe was correlated with P, Mn, and K.