Barakat, Ataya Mohamed. Effect of thermal regime under rewetting and drying cycles on phosphorus [microform] / تأثير النظام الحرارى تحت دورات ابتلال وجفاف الأرضى على امتصاص الفوسفات فى الأراضى المصرية. Ataya Mohamed Barakat. - 1970. - 79, 2 Leaves : ill. ; 30 cm. Thesis (M.S.)-- Cairo University, 1970. Inclueds Bibliographical references (leaves 64-79). Microfiche. ASUNET, Ain Shams University, 2 microfiches : negative. Summary in Arabic. Subjects--Topical Terms: Phosphorus.Soils--Phosphorus content