Ayad Hani Ismail Al-Allaf and Nameer Najib Fadel Hadeed
الملخص الانجليزي
ABSTRACT
This study was carried out in the wooden canopy belonging to the Department of Horticulture
and Garden Engineering Faculty of Agriculture "Mosal Univ" during the growing season 2018 in
order to demonstrate the importance of the effect of two dates for spring grafting (2nd and 17th April)
and fertilization of local oranges seedlings grafted on bitter orange rootstock to compound fertilizer
(NPK) at 30 g/seedling, organic liquid fertilizer "Nutrigreen" at 6 ml/L and using three types of biofertilizers
such as Biogen at 3 and 6 g/ seedling, Potasiomag at 5 and 10 g/ seedling and Fulzyme at 1
g/ seedling as a nutrient elements. The experiment was designed using of the complete randomized
block design (RCBD) with three replicates and five seedlings per experimental unit. Averages were
compared using Dunkin test at 5% level.The results showed that the first date of grafting (2nd April)
affected significantly the characteristics studied, especially the percentage of successful grafts, the
number of leaves and the leaf content of nitrogen. The bio-fertilization treatments with Biogen and
Potasiomag were significantly superior to other fertilizer treatments, especially the control treatment
by the percentage of successful grafts, the number of leaves and the leaf content of nitrogen
phosphorous and potassium.
الاستاذ الدكتور أياد العلاف | Dr. Ayad Hani Alalaf | 19787