“Effect of Nitrogen and Intercropping With Lablab Bean (Lablab Purpureus) on Growth of Fodder Maize (Zea Mays L.) Under Two Irrigation Frequencies *”. University of Khartoum Journal of Agricultural Sciences 18, no. 3 (March 28, 2023). Accessed May 25, 2026. https://onlinejournals.uofk.edu/uofkjas/article/view/1948.