摘要 : Emitters clogging can caused a serious problem that affect drip irrigation performance. This study attempted to present a solution through investigation the impact of Effective Micro-Organism (EM) on mitigating clogging problems n... 展开 Emitters clogging can caused a serious problem that affect drip irrigation performance. This study attempted to present a solution through investigation the impact of Effective Micro-Organism (EM) on mitigating clogging problems normally associated with drip irrigation DI systems. A field experiment was conducted during the period of July to September of 2012 in North Khartoum area, Sudan. In the concerned randomized complete block design (RCBD) was used, where four different concentrations treatments of EM were used; (0,25,50 and 100%). Sunflower was used as an indicator crop to study impact of EM as a fertilizing material promoting plant growth. The results elaborated that, there were significant differences (P s 0.05) among treatments. Whereas, 100% EM concentration gave the highest reduction (50%) of emitter clogging, followed by 50% EM concentration (37%) reduction, while 25% EM concentration gave the lowest (24%) reduction. Also crop growth parameters were improved in a similar trend as compared to the control. EM can be used as a technique for mitigating DI clogging as same as fertilizing material. 收起