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¹ Meyvecilik Araştırma İstasyonu Müdürlüğü Eğirdir, Isparta
² Selçuk Üniversitesi Ziraat Fakültesi Toprak Bilimi ve Bitki Besleme Bölümü, Konya Viewed : 1648 - Downloaded : 704 This study was carried out on leaves taken from apple orchards been in Isparta province in 2010-2011. With this study, reference values were determined for apple trees and compared with other reference values. 150 orchards were determined where cultivated intensively apple as fruit production amount and leaf samples were taken at the beginning of July. N, P, K, Ca, Mg, Mn, Zn and B were analyzed in taken leaf samples. The upper and lower level was determined for each nutrient. Reference values of N, P, K, Mg, Ca, Mn, Zn and B were %2.45-2.85, %0.18-0.24, %1.57-1.99, %1.10-1.41, %0.32-0.43, 39-80 ppm, 13-26 ppm nd 33-42 ppm, respectively. When these reference values were compared with reference values obtained previous research, it was determined that N reference values of this research were higher than previous results, but Zn values were lower and the rest of the nutrient values were similar with the other references values. Keywords : Apple, Reference Value, Leaf analysis