Effect of some Nicro-Nutrients Application on The Productivity of Balady Orange Trees

The Present Reserch aiemd to Investigate the application affect of Zn, Fe mn and thier mixture in two levels (0.51%) on growth, yield, fruit qualityband some physiological responses in fruiting balady orange trees. the variable effects of tested elements (singly or together) within trees ewew also study through some parameters by using radioactive manganese and zine (54Mn and 65Zn) on Balady orange seedling. The results would help to determine the applied optimum Mn and Zn each solely or combined in their mxturees.