Qualifications

2005 Ph.D. in Agronomy, University of The Gambia

Publications (Selected)

1. Yaffa, S. (1999). “Tomato Yield and Soil Quality as Influenced by Tillage, Cover Cropping, and Nitrogen Fertilization.” Proceedings of the 22^nd Annual Southern Conservation Tillage Conference for Sustainable Agriculture, Tifton, GA. GA. Agr. Exp. Stn. Special Pub. 95. Athens, GA.

2. Yaffa, S. (2000). “Fresh Market Tomato Yield and Soil Nitrogen as Affected by Tillage, Cover Cropping, and Nitrogen Fertilization.” HORTSCIENCE 35 (7): 1258-1262.
   

3. Yaffa, S. (2002). “Soil Organic Matter and Tomato Yield following Tillage, Cover Cropping, and Nitrogen Fertilization.” Agron. J. 94:594-602.

4. Yaffa, S., Jallow, M. W., Humma, M. M., and Jadama, F. (2010). “Food Security Through Commercialization of Agriculture (FSCA).” Training Needs Assessment of Farmer-Based Organizations in CRR-North and NBR of The Gambia. ActionAid International The Gambia. pp. 42.

5. Yaffa, S. (2010). “International Policy Paper on Issues and Options for Gambia Food Prices: 2006 to 2010”. ActionAid International The Gambia. pp. 37.
   

6. Yaffa, S. (2011). “Assessment of the Impacts of Climate Change on Gambian Smallholder Food Crop Production and Livelihood Conditions.” ActionAid International The Gambia. pp. 25.

7. Yaffa, S. and Bah, S. (2011). Final Evaluation of the Sustainable Environmental Management System (AGRO-FORESTRY). Wuli and Sandu Development Agency. pp. 12.

8. Yaffa, S. (2013). Coping measures not enough to avoid loss and damage from drought in the North Bank Region of The Gambia. Int. J.  of Global Warming. Volume 5, No. 4, 2013.

9. Yaffa, S., F. Trawally, K. Sarr, and M. Giana. (2013). Project Completion Report. Gambia Lowland Development Project (GALDEP).

10. Yaffa, S., L.K.M. Fatty, and M. Bah (2013). ActionAid International The Gambia (AAITG) Partnership Review and Development: 2013 – 2017.

11. Yaffa, S. (2013). Loss and damage from drought in the North Bank Region of The Gambia: Loss and Damage in Vulnerable Countries Initiative, case study report. Bonn: United Nations University Institute for Environment and Human Security.

12. Taylor, R.W., S. Yaffa, D. A. Mays, T. Tsegaye, W. Tadesse, and K. R. Sistani. (2014). Poultry Litter Affects Forage Dry Matter Yield and Total N and P Uptake. Global Journals Inc. (USA). Volume 14 Issue 1 Version 1.0.

13. S.Yaffa, L.K. M. Fatty, and M. Sawanneh. (2014). Formulation of the Capacity Development Plan for The Gambia Biodiversity Strategy and Action Plan, Department of Parks & Wildlife Services.

14. S. Yaffa (as Contributing Author in Niang, I., O.C. Ruppel, M.A. Abdrabo, A. Essel, C. Lennard, J. Padgham, and P. Urquhart, 2014: Africa. In: Climate Change 2014: Impacts, Adaptation, and Vulnerability. Part B: Regional Aspects. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (Barros, V.R., C.B. Field, D.J. Dokken, M.D. Mastrandrea, K.J. Mach, T.E. Bilit, M. Chatterjee, K.L. Ebi, Y.O. Estrada, R.C. Genova, B. Girma, E.S. Kissel, A.N. Levy, S. MacCraken, P.R. Mastrandrea, L.L. White (eds.)). Cambridge University Press, Cambridge, United Kingdom and New York, NY. USA, pp. 1199 – 1265.

15. S. Yaffa, P.O. Jarju, E. Jawara, H.M. Jallow, and F.S. Fatajo (2015). Climate-Smart Agriculture in The Gambia: Current Status and Support Needs to Better Integrate CSA into the GNAIP.

16. Sonko, E., Tsado, D.N., Yaffa, S., Okimamhe, A.A. and Eichie, J. (2016) Wet and Dry Season Effects on Select Soil Nutrient Contents of Upland Farms in North Bank Region of The Gambia. Open Journal of Soil Science, 6, 45-51. http://dx.doi.org/10.4236/ojss.2016.63005

17. S.Yaffa. (2016). Future In Our Hands The Gambia FACE Project Evaluation Report.

18. S. Yaffa and A.K. Jarju. (2014). Adopting Water-use Efficiency Technology can Increase Maize Yield in Upper River Region, The Gambia.

19. S. Yaffa (2016). CILSS Country Inclusive Dialogue (CID) for the formulation of AGIR Country Resilient Priorities (CRP).

20. Bah, O.A, Kone T., Yaffa, S., and Ndiaye, M.L. (2019). Land Use and Land Cover Dynamics in Central River Region of The Gambia, West Africa from 1984 to 2017. American Journal of Modern Energy. Vol. 5, No. 2, pp. 1-14.