Obtained results show that double-inoculation was the most effective treatment in all cultivars. Other effective treatment were Azotobacter and Azospirillum inoculation,separately This is indicated that using growth prompting fertilizers as double-inoculation caused to increasing maize yield through synergistic effects by improving growth prompting hormones, controlling pathogenesis and growth reducing agents due to producing fungicide antibiotics and compounds (antagonistic effect) and also air molloculal nitrogen fixing and also producing growth prompting hormones such as oxine, cytokenine and giberlines and solving mineral compound. Also studied cultivars showed different responded to most parameters. SC704 cultivar obtained highest yield