Welcome to my CU webpage where you can find info about my work and links to my profiles on Future Africa, ORCID, ResearchGate, Publons, ResearcherID, Scopus Author ID, Google Scholar, and LinkedIn. My research Interest includes: sustainable soil fertility managment;  soil organic carbon and land uses changes; soil organic C and climatic changes; soil organic C fractionation and characterization; organic farming, nutrients managment under organic farming; organic growing media and greenhouse production, and agric. wastes recyling and composting. Email me at: hamada{at}agr.cu.edu.eg or at hamada{a}cu.edu.eg