THE EFFECT OF TREATED SEWAGE WATER ON ALHOHOPA & JATROPH PLANTS AND THEIR GROWING SOILS

Abstract

This study was conducted in El Orman Garden nurserey (Agricultural Research Center) within two following seasons of 2011/2012 and 2013/2014. This research aimed to study the effect of two water types (sewage water and fresh water), three soil types (Sand, Clay, calcareous soils) and their interaction on growth characters and chemical composition of Jojoba and Jatropha plants. The main results obtained were as follow: Vegetative growth (plant height – number of leaves – number of flowers – fresh and dry weight) and the chemical composition (chlorophyll content, A – B, A + B, total carbohydrate, heavy metals (cd, cu, fe, pb, zn) and oil contents for both plants Jojoba and Jatropha. The most important gained results were the use of sand soil with the treated sewage water that gave the best results in the vegetative growth and the chemical composition for both plants Jatropha and Jojoba in comparison with other used soil types and control treatment (irrigation with fresh water).