رحیم نیکخواه

The aim of this study was to investigate the effect of combined NPK fertilizer with (spraying B and zn) on qualitative and quantitative characteristics of pomegranate Fruit cv. Rabbab.The experiment was randomized complete blocked design (RCBD) with eight treatments and three repeat. The treatments included 1- NPK(Soil application) 2- NPK(Soil application) B(spraying) 3- NPK(Soil application) Zn(spraying) 4- NPK(Soil application) B(spraying) Zn(spraying) 5- B(spraying) 6- Zn(spraying) 7- B Zn(spraying) and control treatment.The results of this study showed that the fruits length were significantly bigger in the case of (spraying B and zn) and(B NPK treatment) in compare with control treatment and other treatments.The results of fruits skin thickness indicated the highest and the lowest skin thickness of pomegranate was obtained from (spraying with B and Zn) and (NPK B, NPK Zn B) respectively. Zn B, NPK Zn B and B treatments had no significant effect on the weight in compare with control treatment. NPK fertilizer application decreased the fruis weight, compare control treatment, significantly. However fertilizer treatments had powerful effect on Total Soluble Solid (TSS), acidity, Percent of fruit juice and vitamin C, but had no effect on pH level of fruit juice. It should be notice that fertilizer treatments changed the physical properties of pomegranate seeds.