Acetobacter is an obligatory aerobic nitrogen fixing bacteria which is capable for nitrogen fixing in roots, stems and leaves of sugarcane plants. It produces growth promoting substances as IAA (Indole Acetic Acid) and GA (Gibberllic acid) that promote root proliferation and increase the number of rootlets, resulting in uptake of mineral, phosphate solubilisation and water which promote cane growth and sugar recovery in the cane.