"Calculation of K Uptake by Two Crops Grown under Field Conditions Using a Mechanistic Model". University of Khartoum Journal of Agricultural Sciences 19, no. 3 (مارس 28, 2023). تاريخ الوصول مايو 25, 2026. https://onlinejournals.uofk.edu/uofkjas/article/view/1879.