"Effect of Extended Irrigation Intervals at Different Growth Stages on Growth and Yield of Cotton in the Sudan Gezira" (2025) University of Khartoum Journal of Agricultural Sciences, 15(3). موجود في: https://onlinejournals.uofk.edu/uofkjas/article/view/2011 (تاريخ الوصول: 25 مايو 2026).