Effect of diffrent media culture and humic acid on some important vegetative properties of orange seedling cv. Valencia (Citrus sinensis) using sour orange (C. aurantium) rootstock

The aim of this study was to investige the effect of different media cultures and humic Acid (HA) on some vegetative properties and absorption of Phosphorus (P) and Potassium (K) contents in leaf of orange seedling (Citrus sinensis) cv. Valencia grafted on sour orange (C. aurantium) rootstock. A factorial experiment was carried out based on randomized complete block design with three replications. The first factor was HA concenterations of 0, 2.5, 5 and 7.5 gl-1 and second factor was formed by seven different combinations of media culture including 1- soil, 2- zeolite, 3- leaf mold, 4- soil zeolite, 5- soil vermicompost 6- Soil leaf mold 7- soil vermicompost zeolite. Results showed that effect of HA, media culture and their interaction on all of the investigated traits of Valencia orange were significant (P