Evaluation of Removed and Recycled Mineral Nutrients in Italian Commercial Persimmon Orchards

Persimmon is a typical fruit crop of the Mediterranean region and, since it considered minor species, little information available on its nutrients need. In present experiment, was estimated quantity removed and recycled by Kaki Tipo Rojo Brillante, two main varieties persimmon grown in Emilia-Romagna (Po Valley, Italy). Plants from ten mature orchards were selected harvested; organs (leaves summer, fruits at harvest, abscissed leaves, roots skeleton) biomass mineral composition determined. The yearly uptake macronutrients similar for 2 varieties, accounting (kg ha−1): N 89-91, P 10-11, K 79-91, Ca 132-162, Mg 22-26 S 9. While mostly found fruits, mainly partitioned to leaves. Among micronutrients, Mn Fe showed highest values (1.1–1.3 1.2–2.1 kg ha−1, respectively), followed B (370 g ha−1), while Cu Zn smallest amounts (less 100 ha−1). Nitrogen, Ca, those more than removed, an opposite trend; among microelements, annual fractions higher that removed.