1. Chakirwa, Z.P, J. Sarkodie-Addo, Adjei-Gyapong, A. K. Lubobo, B. J. and Bashagaluke (2019) Growth, Nodulation and Nutrients Uptakes of Cowpea (Vigna unguiculata L. Walp) following Zinc Fertilizer Applications in the Semi-deciduous Forest Zone of Ghana. Journal of Experimental Agriculture International. Vol 35 pp.1 – 13
2. Yeboah, I.B., O. Tuffour A. Abubakar C. Melenya M. Bonsu C. Quansah and T. Adjei-Gyapong (2019) Mobility and transport behavior of lead in agricultural soils. Elsevier, Scientific African. Vol. 5 pp.1-9
3. Thiob, N. Ewusi-Mensah, J. Sarkodie-Addo and T.Adjei-Gyapong (2019). Arbuscular mycorrhizal fungi inoculation enhances phosphorus use efficiency and soyabean productivity on a Haplic Acrisol. Soil and Tillage Research 192 (2019). Elservier Pp 174 – 186.
4. Asiedu, C. K. Kwoseh, H. Melakeberhan, T. Adjei-Gyapong (2017). Nematode distribution in cultivated and undisturbed soils of Guinea Savannah and Semi-deciduous Forest zones of Ghana. Geoscience Frontiers (2017, http://dx.doi.org/10.1016/j.gsf.2017.07.010
5. J. Faye, C.K. Kwoseh, T. Adjei-Gyapong and J.L.Star. (2016). Efficacy of sweet orange and cassava peel amendments for the management of root-knot nematode on tomato. American Journal of Experimental Agriculture, 12(5): 1 – 15.
6. O. Tuffour, I.Y. Boateng, M. Bonsu, T. Adjei-Gyapong, A.A. Khalid, A. Abubakar, C. Malenya and P. Kpotor. 2014. Soil Organic Carbon Relating the Walkley-Black Wet Oxidation Method to Loss on Ignition and Clay Content. International Journal of Scientific Research in Knowledge, 2(5) pp. 249-256.
7. A. Khalid, H.O. Tuffour, M. Bonsu, T. Adjei-Gyapong, A. Abubakar, I.Y. Boateng, C. Malenya and P. Kpotor. 2014. Effects of Poultry Manure and NPK Fertilizer on Growth and Yield of Garden Eggs (Solanum melongena) in a sandy soil in Ghana. International Journal of Scientific Research in Knowledge, 2(6) pp. 257-264
8. O. Fening, T. Adjei-Gyapong, N. Ewusi Mensah, and E.Y. Safo. (2010). Manure management, quality and mineralization for sustainable smallholder livelihoods in the Upper East region of Ghana. Journal of Science and Technology, KNUST, Kumasi Ghana, 30(2): 1 - 9
9. O. Fening, T. Adjei-Gyapong, F. Ababio and E. Gaisie. (2009). Effect of site characteristics on the productivity and economic returns from cassava-legume intercropping in Ghana. Journal of Environmental Science and Technology, 3(10).
10. O. Fening, E. Yeboah T. Adjei-Gyapong, and E. Gaisie. (2009). On-farm evaluation of the contribution of three green manures to maize yield in the semi deciduous forest zone of Ghana. Journal of Environmental Science and Technology, 3(9).
11. O. Fening, T. Adjei-Gyapong, F. O. Ababio, and E. Gaisie. (2005). Intercropping maize in planted fallows on smallholder farms in Ghana. Tropical Science. 45 (3):155- 158.
12. O. Fening, T. Adjei-Gyapong, E. O. Ampontuah, E. Yeboah, and E. Gaisie. (2005). Fertilizing for profit, the case of cassava cultivation in Ghana. Tropical Science Journal, 45(2): 97 – 99.
13. O. Fening, T. Adjei-Gyapong, E. Yeboah, E. O. Ampontuah, G. Quansah and S.K.A. Danso. (2005). Soil fertility status and potential organic inputs for improving small holder crop Production in the Interior Savanna Zone of Ghana. Journal of Sustainable Agriculture, 25 (4): 69 – 92. Food Production Press, New York, USA.
14. D. Asiamah, J.K. Seneyah, T. Adjei-Gyapong and O.C. Spaargaren. (1997). Ethno-pedology surveys in the Semi-arid Savanna Zone of Northern Ghana. An ILEIA
15. Initiated Project. Report 94/04. Soil Research Institute Kwadaso and International Soil Reference and Information Centre (ISRIC), Wageningen. VI + 38 + 2 maps.

 Conference Papers and Posters

• Amissah, T.Adjei-Gyapong, P.Antwi-Agyei, K. Obiri-Danso, R.C. Abaidoo Impact of land use changes on carbon sequestration in the Owabi Catchment. Poster presented at BSUII Confab, Kumasi 26^th - 29^th January, 2017

• Adjei-Gyapong R.C. Abaidoo, H.Hauggaard-Nielsen, C. Quansah Assessment of Second Generation Biofuel Residuals as Soil Amendment for Soil Fertility Improvement. Biorefinery Conference 2012. Theme: Advanced Biofuels a Biorefinery Approach, 28th February – 2nd March, 2012, Copenhagen, Denmark.

• Bonsu, D.C, Adukpo,.and T. Adjei-Gyapong. 2008. Estimates of CO2 Emissions from soil organic carbon from different land uses. Paper presented at the Open Science Conference on “Africa and Carbon Cycle: The CarboAfrica Project”, Accra (Ghana) 25 – 27th November, 2008.

• Adjei-Gyapong and R.D.Asiamah. 2002. The Interim Ghana Soil Clasification System and its’ relation with the World Reference Base for Soil Resources. Quartorzieme reunion du sous-comite Ouest et Centre Africain de correlations de sols pour la mise en valeur des terre. 9ieme a 14ieme Octobre 2000, Abomey, Republique du Benin. FAO Soil Resources Report No. 98/ pp51 -76. FAO, Rome.

Unpublished Papers and Reports

• Adjei-Gyapong (2018) Soil suitability assessment of Krisan Community Farmlands for assorted crops. Department of Crop and Soil Sciences, KNUST, Kumasi.
• Adjei-Gyapong (2015) Soil suitability assessment of proposed farmlands of Las Palmas Food Complex at Agricultural Research Station, KNUST, Anwomaso. Department of Crop and Soil Sciences, KNUST, Kumasi.
• Adjei-Gyapong, J.O. Fening, E. Gaisie and K. Nketia. (2009). Integrated community land management and soil fertility improvement in the Upper West region of Ghana (TCP/GH/3101 (D) - Soil resource surveys of four communities – Nambeg, Yagha, Tongo and Kusele in the Jirapa and Lawra Districts, Final Report, CSIR Soil Research Institute Technical Report No. 284, Kwadaso Kumasi.
• Adjei-Gyapong. (2008). Exploratory soil suitability assessment of a proposed site near Atakpame, Togo for industrial sugarcane production. Dept. of Crop and Soil Sciences, KNUST, Kumasi.
• Adjei-Gyapong and C. Quansah. (2007). Exploratory soil suitability assessment of a proposed site for industrial sugarcane cultivation at Bossangoa - Central African Republic, Department of Crop and Soil Sciences, KNUST, Kumasi.