Locally made and imported phosphate fertilizers a financial comparison
By: Abd al-Hafiz, Mahjub al-Tayyib; al-Talib, Abd al-Munim M. A.; Ibn Awf, Muhammad A. O.. Journal of Science and Technology. Vol. 7, no. 1 (2006), pp.1-10, 10 p.
Subjects: Sudan; Fertilizers; Wheat