Heba Mohmed Abdelaziz <br/><br/>
Chelating biofertilizer production from crop residues and its utilization in Affrican marginal soils /  
 انتاج السماد الحيوى المخلبى من بقايا المحاصيل واستخدامة فى الاراضى الافريقية هامشية الخواص 
Heba Mohmed Abdelaziz ; Supervised Adel Saad Elhassanin , Samir Ahmed Elshimi 
 - Cairo :   Heba Mohmed Abdelaziz ,   1999 
 - 120Leaves :   charts ;   30cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Institute Of African Research and Studies - Department Of Natural Resources