by Orabi, A.A, Abdel-Aziz, I.M. (Agriculture Research Centre, Cairo (Egypt). Soil and Water Research Inst.)
Published in Plant and Soil (Netherlands) (1982)

by Orabi, A.A, Keshk, M.A, Ismail, S.A
Published in Beitrage zur tropischen Landwirtschaft und Veterinarmedizin (1981)

by Ismail, A.S. (Ain Shams Univ., Cairo (Egypt). Faculty of Agriculture, Dept. of Soils), Orabi, A.A, Mostafa, M.A
Published in Plant and Soil (Netherlands) (1985)

by Abdel-Hadi, A.H. (Ministry of Agriculture, Cairo (Egypt) Soil and Water Research Inst.), Khadr, M.S, Orabi, A.A
Published in Agricultural Research Review (Egypt) (1985)

by Orabi, A.A, Mashadi, H, Abdallah, A, Morsy, M. (Agricultural Research Center, Cairo (Egypt). Soil and Water Research Inst., Micronutrients Research Unit)
Published in Plant and Soil (Netherlands) (1981)