Awad Elkarim, A.H. and Sadik, U. (2000) Assessment of Potentially available soil nitrogen incubation Related to status of some soil-N International Symposium on Desertification, 13-17 June 2000 Konya, Turkey, 158-164.
Awad Elkarim, A.H. and Sadik U.(2001) Evaluation of some chemical extraction methods used as indices of soil nitrogen
availability in Polatli State Farm soils in Ankara province. Turkish J. of Agriculture & Forestry, 25 (5) 337-345.
Awad Elkarim, A.H.;Y.E El-Mahi and A.M. ElTilib. (2004) The influence of soil type, salinity and sodicity on ammonia volatilization in soils fertilized with urea. Annals Agric. Sci., Ain Shams Univ.., Cairo, 49 (1) 401-411.
Awad Elkarim, A.H.; R. A. Ghobrial; A. I. Musa; E. Osman; I. H. Osman. (2004) Sudan Agricultural Information System ; challenges and opportunities. Sudan National Agricultural Information Network Workshop, Khartoum, 30-31 Aug.2004.
Eltilib, A.M.A; T.E.M. Hago; A.H. Awad Elkarim (2005.) The Response of rainfed pearl millet (Pennisetum glaucum L.) to nitrogenous and phosphatic fertilizers applied of sandy loam soil. Annals Agric. Sci., Ain Shams Univ.., Cairo, 50 (2) 499-511.
Mubarak, A.R., O.M.E. El shami, F.A. Hamid, D. Steffens, G. Benckiser and A.H. Awad Elkarim (2005) Long-term cropping systems effect on an irrigated and rain-fed Vertisol quality in the semi-arid tropics of Sudan: I. Estimates of carbon and nitrogen stocks. Proc. Inter. Conf. Human Impacts on Soil Quality Attributes Sep 12-16 2005, Isfahan, Iran
Eltilib, A.M.A; T.E.M. Hago A.H. Awad Elkarim and S.A.M. Ali (2006). Effect of nitrogenous and phosphatic fertilizers on performance of rainfed pearl millet (Pennisetum glaucum L.) grown on clay loam soil . Arab Univ. J. Agric. Sci., Ain Shams Univ.., Cairo, 14 (1), 195-203 .
Elsheikh, M.A.;M.A.M Eltilib;E.A.E. Elsheikh and A.H. Awad Elkarim (2006) Effect of phosphate rock and triplesuperphosphate on growth and leaf N , P and K contents of groundnut (Arachis hypogaea L.) grown on a clay soil. . Arab Univ. J. Agric. Sci., Ain Shams Univ., Cairo, 14 (2), 873-880 .
Mubarak, A.R., Eshraga A. M. Gali , Asma G. Mohamed, Steffens D. and Abdelkarim H. Awadelkarim. (2010). Nitrogen mineralization from five manures as influenced by chemical composition and soil type. Communications in Soil Science and Plant Analysis 41 (16): 1903-1920.
Murat Ali Turan1, Abdelkarim Hassan Awad Elkarim2 Nilgün Taban3 and Suleyman Taban.(2010). Effect of salt stress on growth and ion distribution and accumulation in shoot and root of maize plant. African Journal of Agricultural Research Vol. 5(7), pp. 584-588
Abdalla A.M. Elhassan, Abdelmonem M.A. El-Tilib, Hassan S. Ibrahim, Abdelaziz A. Hashim, Abdelkarim H. Awadelkarim. (2011). Response of foster grapefruit (Citrusparadisi Macf.) to organic and inorganic fertilization in central Sudan, Annals of Agricultural Sciences Volume 56, Issue 1, June 2011, Pages 37–41. www.elsevier.com/locate/aoas
Awadelkarim, A.H., Mubarak A.R. and A. G. Gassm Alsayied.(2011) Time of sowing sorghum (Sorghum bicolor L.) as affected by nitrogen mineralization from farm yard manure in three soil types. Tropentag October, 5-7, 2011, Bonn, Germany
