No abstract

This study aimed to examine the effect of organic sources such as fish scrap, goat manure and olive pomace, type of application (surface and trench) and bio-fertilizer applications (Nitrobein or Rhizobacterein) on flowering, fruit yield and fruit quality of Earligrande peach trees during the two consecutive seasons of 2013/2014 and 2014/2015 at the private Farm at El-Kharafen village in Rafah district, North Sinai Governorate, Egypt. Results indicated that organic fertilization treatments increased number of flowers per shoot, fruit set percentage, total yield, fruit volume and firmness, Vitamin C and total soluble solids (TSS) in both seasons. The fish scrap treatment produced the highest value of each yield measurement, followed by goat manure treatment, then olive pomace treatment compared with nonfertilized trees (control). On the other hand, trench application achieved very significant effect on tree yield (Kg/tree), fruit weight, fruit volume and firmness compared with surface application in both seasons, But surface application recorded the highest value for each of Vitamin C and total soluble solids (TSS). Also, results showed that Rhizobacterein fertilizer recorded the heights value for each of fruit weight, fruit volume and firmness, Vitamin C and total soluble solids (TSS). Finally, additive the fish scrap (about 2.77 Kg. tree -1 . Year -1 ) with Rhizobacterein fertilizer (50 g/tree) in trench application gave the highest fruit properties, fruit yield and improve "Earligrande" peach fruit quality properties in the same experiment conditions.