Response the vegetative characters of three cultivars of olives (Olea europaea L.) to application methods of Nano-Iron and seaweed extract

Abstract

This study was conducted during the 2019 growing season in the olive grove of the college of Agriculture - Tikrit University / Salah al-Din, to study Response the vegetative characters of three cultivars of olives ( Olea europaea L.) to application methods of Nano-Iron and seaweed extract.

The study included three factors were as follows: The first factor (cultivars): Nabali variety (V1) , Ashrasi variety (V2), Khudhari variety (V3). and the second factor (application methods) : Foliar application (A1) , Trunk injection (A2) . and the third factor (application fertilizers) : It was added with three dates 15/2 , 1/3 and 15/3 It included : Fertilizers added by Foliar application: Control treatment (water only) (T0) and Nano-Iron (Fe3O4 Nanoparticles) with a concentration of 150 mg. L-1 (T1), 300 mg. L-1 (T2) and seaweed extract (Tecamin Algae) at a concentration of 2 ml. L-1 (T3) , 4 ml. L-1 (T4) . And fertilizers added by trunk injection : Control treatment (water only) (T0) and Nano-Iron (Fe3O4 Nanoparticles) with a concentration of 75 mg. L-1 (T1), 150 mg. L-1 (T2) and seaweed extract (Tecamin Algae) at a concentration of 1 ml. L-1 (T3) , 2 ml. L-1 (T4).