Determination of nutritional status ofkiwifruit orchards around Iznik region via soiland plant analysis

This research was carried out to determine the nutritional status of kiwi orchards around the Iznik district of Bursa province. In the study, soil and plant samples were taken from 22 orchards determined from the areas where cultivation is intense around Iznik, and the nutritional status of the orchards was evaluated by making the necessary analyzes. According to the results of this research; The soils are in the slightly acid-slightly alkaline pH range, salt-free, generally in the clay loam texture class and less calcerous. They usually contain less than enough organic matter. Total N is low in 40 % of orchards and sufficient in 60 %. Phosphourus, K, Ca and Mg are adequate and extreme in all soils. No deficiencies have been found in the absorbable microelement content of soils. About 40 % of the leaf samples have N and Mn below the boundary level, and 60 % of them are at the boundary level, the content of P, K, Ca, Mg and Fe, Cu, Zn is usually at sufficient level. P, Ca and Fe content of flesh are above the qualification limit, N, K, Mg, Cu, Mn and Zn contents are below sufficient levels. The macro and micronutrient content of the peel is below the reported limit values.