TY - BOOK AU - Tamer Ibrahem Mahmoud Dawood AU - Ahmed Salama Elleithy , AU - Gamal Eldin Fahmy Ahmed , AU - Hend Mostafa Fahmy Swaefy , TI - Effect of irrigation intervals and nitrogen fertilization on growth, yield and chemical composition of ricinus communis L. under North Sinai conditions / PY - 2011/// CY - Cairo : PB - Tamer Ibrahem Mahmoud Dawood , KW - Irrigation intervals KW - Nitrogen fertilization KW - Ricinus communis N1 - Thesis (M.Sc.) - Cairo University - Faculty of Agriculture - Department of Ornamental Horticulture; Issued also as CD N2 - This experiment was conducted during 2004/2005 and 2005/2006, at the field experimental and laboratories of North Sinai Research Station, Desert Research Centre, at Elsheikh Zowayed, to investigate the effect of irrigation intervals (10, 15, 30) days and rainfed irrigation and nitrogen fertilization rates of ammonium sulphate (20.5% N) at four rates of (0, 100, 200, and 300) kg/fed./year on plant grrowth , yield, fixed oil production and chemical composition of Ricinus communis, L UR - http://172.23.153.220/th.pdf ER -