Author = Abdel Hamid, usama
Effect of some Nitrogen Fertilization Rates on the Yield and Its Components for some New Egyptian Bread Wheat Cultivars

Volume 3, Issue 1, March 2024, Pages 35-46

Sobhy M.A. Abd El-Dayem; Usama A. Abdel-Razek; Mohamed A. M. El-Dahrawy


Agricultural and physiological studies on wheat crop

Volume 2, Issue 1, January 2023, Pages 9-17

khaled Abdelaal; usama Abdel Hamid; emad rashwan; Enas Zakaria Taha Mansour


Effect of Some Agricultural Practices on New Maize Hybrids

Volume 1, Issue 1, October 2022, Pages 40-47

U.A Abd El-Razek; S. M. K Abou Elharess; M. S HamadA