El-Azab, Mona E. “Increasing Zn Ratio in a Compound Foliar NPK Fertilizer in Relation to Growth, Yield and Quality of Corn Plant”. Journal of Innovations in Pharmaceutical and Biological Sciences 2, no. 4 (October 5, 2015): 451–468. Accessed April 20, 2026. https://jipbs.com/journal/article/view/86.