THE EDUCATIONAL EFFECTS OF WHEAT EXTENSION FIELDS BY USING RAISED BEDS IN SHARKIA GOVERNORATE

HASSAN A. SHARSHAR, TAHA M. EL- FESHAWY, MARWA E. AHMED
2012 Egyptian Journal of Agricultural Research  
doi:10.21608/ejar.2012.163012 fatcat:mfnl2icgpjbuvbsml64zovxsgu