SULIEMAN AHMED GASIM EL SAID; HATIL HASHIM EL-KAMALI; SARA AHMED SAAD. Analysis of Physico-chemical and Macro Element Concentration in Soils of Six Farmlands in Khartoum State, Central Sudan. Journal of The Faculty of Science and Technology, n. 7, p. 117 - 124, 17 Aug. 2021.