Abu-Ellail, Farrag Farghal Boraiy, et al. “Genetic Variability and Response of Some Sugarcane Varieties to Application Methods of N-Fixation Organism (Azospirillum Brasilense) under Different Inorganic Nitrogen Levels”. Journal of Sugarcane Research, vol. 11, no. 1, June 2021, pp. 37-55, https://doi.org/10.37580/JSR.2021.1.11.37-55.