Yıldırım KAYAM1         Oner CETIN2 *  1International Agricultural Research and Training Center, Menemen, Izmir, Turkey 2Dicle University, Agricultural Faculty, Dept. of Agricultural Structure and Irrigation, Diyarbakır, Turkey ykayam@utaem.gov.tr oner_cetin@yahoo.com   Abstract  As well known, the “drought” originates from deficiency of precipitation which effecting wide areas for temporary periods. However, it is not defined as only water […]