R. M. . Al-Maliki, M. H. . Al-Ugaili, and Iead kadhem Musaier, “Effect of different levels of Nitrogen on growth and dry matter of sorghum three cultivar (( Sorghum bicolor (L.) moench ))”, JWSM, vol. 5, no. 1, pp. 51–57, Nov. 2022, doi: 10.31185/jwsm.171.