Al-Hatem, J. Y. . .; Kadhim, D. A. .; Abid, M. A. . Developing A Nano-Fertilizer of Iron Oxide NPs Using Yeast Extract and Studying Its Effectiveness on the Growth and Germination of Nigella Sativa Seeds. Basrah J. Agric. Sci. 2025, 38, 235-247.