Vegetative growth and mineral content of leaves of Ziziphus mauritiana seedlings as affected by urea spray cv. Zitoni

Abstract

The aim of this paper is to introduce the best spread nitration fertilization level on Ziziphus mauritiana of cv. Zitoni concentration at (0 ,2 ,4 ,6 )% .The result show significant effect for fertilization on the lengths and diameters of main and auxiliary branch , it have reach on 6% level 9.6 cm , 0.23 cm , 19.2 cm and 0.31 cm for mean level to main branch , auxiliary branch and diameters of main and auxiliary branch respectively .The result shows there was significant effect on the number and area leaf with the nitrogen fertilization increase but do not notice significant change in the number of auxiliary branch . The result shows there was significant effect on the phosphor and nitrogen concentration with the concentration of urea spray increase, the phosphor concentration reach at 6% level 0.37%...The result show there was significant effect on the carbohydrates and chlorophyll concentration with the concentration of urea spray increase, the carbohydrates and chlorophyll concentration reach at 6%levle 25.1% and 3.53 mg/g respectively