Influence of organic fertilization on the number of culturable diazotrophic endophytic bacteria isolated from sugarcane

► The type of fertilization affects the size of endophytic N2-fixing microbiote of sugarcane. ► Organic fertilization affects positively the number of microorganisms ► Conventional fertilization, widely used in the world, can affect negatively these bacteria. ► Organic fertilization must be encouraged as an alternative for the conventional treatment.