Enujeke, E. C. “Assessment of Grain Weight of Maize to Variety, Organic Manure and Inorganic Fertilizer of Asaba Area of Delta State”. Cutting-edge Research in Agricultural Sciences Vol. 12 (July 13, 2021): 63–74. Accessed July 21, 2026. https://stm.bookpi.org/CRAS-V12/article/view/2368.