Effect of spraying with nano-iron and adding organic fertilizer to improve some chemical traits for Jujube leaves of Al-Tafahi cultivar (Ziziphus mauritiana Lam.)

Abstract

The experiment was conducted in a private orchard in Al-Hartha district , Basra province during the autumn season 2019-2020.In order to know the effect of spraying with iron nano-chelated fertilizer and adding Potgrond organic fertilizer to improve some chemical properties of the leaves of Jujube trees, Ziziphus mauritiana Lam. The experiment was designed as a factorial experiment according to a randomized complete block design (R.C.B.D) with three replicates. Three concentrations of chelated iron (0, 1, 2) g.L-1 and two concentrations of Potgrond organic fertilizer (0, 4) kg.tree-1 were used. The results were analyzed statistically using the LSD test at a 5% probability level and using the Genstat statistical program. The results showed that spraying with nano chelated iron at a concentration of 2g.L-1 led to an improvement of traits including chlorophyll, carbohydrates, nitrogen, phosphorous, potassium and iron in leaves and it reached (3.56 mg. 100 g-1, 67.36 mg.100 g.L-1, 2.00%, 0.50%, 1.80% , 6.03%), respectively, The addition of organic fertilizer Potgrond 4 kg.tree-1 caused a significant increase in chlorophyll, carbohydrates, nitrogen, phosphorous, potassium and iron, and it reached (3.31 mg. 100 g-1, 69.70 mg. 100 g-1, 1.90%, 0.46%, 1.67%, 5.13%), respectively. , And the interaction between the two study factors showed a significant effect on the studied traits.