* Agricultural Research in Developing Countries, British Ministry of Overseas Development, Bristol, England, 1970.
* Canadian Soil Science Society Conference, Saskatoon, (presence) Saskatchewan, Canada, 1977.
* First Arab Conference for the utilization of sulphur in the Arab World, Kuwait, 1982 (oral paper).
* FAO Conference on the utilization of fertilizers in Sudan, Khartoum, 1982 (oral paper).
* Reclamation and utilization of salt-affected soils in the Arab World, Baghdad, 1986, (oral paper).
* Sudanese Economy, Problems and Prospects, Hamburg 1984, GTZ, University of Hamburg (presence).
* UNESCO workshop on the prevention of natural catastrophes, Khartoum 1991 (Discussion initiator).
* Problems and prospects of agricultural development by the waters of the Libyan man-made river, Sirte, Libya, 2000 (presence).
* Seventeen International Conference on Symbiotic nitrogen fixation by legumes, co-author of a conference paper, Germany, 2000 (oral paper).
* U. of Khartoum conference on Decentralization (paper) 2005.
* U. of Khartoum conference on Graduate Studies (paper) 2006.
* Khartoum State conference on Agriculture (paper) 2007