Ramadan Mohamed, A. and Ali Elssaidi, M. 2019. Fractionation of Organic and Inorganic Phosphorus in Sandy Soils irrigated by Treated Wastewater Cultivated by Hordeum vulgre & Vicia faba . Journal of Pure & Applied Sciences . 18, 4 (Nov. 2019), 92–97. DOI:https://doi.org/10.51984/jopas.v18i4.393.