Dr. Jeremiah Mosioma Okeyo Publications

Peer-reviewed journals

1. Wafula, J. N., Mugendi, F. N., Nthakanio, P. N., Mosioma, J. O., & Onyari, C. N. (2022). Effects of Variety, Spacing and Nitrogen Application on Chickpea (Cicer arietinum) Growth and Yield in Embu County, Kenya.
2. Franklin S. Mairura, Collins M. Musafiri, Milka N. Kiboi, Joseph M. Macharia, Onesmus K. Ng'etich, Chris A. Shisanya, Jeremiah M. Okeyo, Daniel N. Mugendi, Elizabeth A. Okwuosa, Felix K. Ngetich, (2021). Determinants of farmers' perceptions of climate variability, mitigation, and adaptation strategies in the central highlands of Kenya, Weather and Climate Extremes, Volume 34, 100374, https://doi.org/10.1016/j.wace.2021.100374
3. Musafiri, C. M., Macharia, J. M., Kiboi, M. N., Ng’etich, O. K., Shisanya, C. A., Okeyo, J. M., Mugendi, D. N., Okwuosa, E. A., & Ngetich, F. K. (2020). Soil greenhouse gas fluxes from maize cropping system under different soil fertility management technologies in Kenya. Agriculture, Ecosystems and Environment, 301. https://doi.org/10.1016/j.agee.2020.107064
4. Musafiri, C. M., Macharia, J. M., Ng’etich, O. K., Kiboi, M. N., Okeyo, J., Shisanya, C. A., Okwuosa, E. A., Mugendi, D. N., & Ngetich, F. K. (2020). Farming systems’ typologies analysis to inform agricultural greenhouse gas emissions potential from smallholder rain-fed farms in Kenya. Scientific African, 8. https://doi.org/10.1016/j.sciaf.2020.e00458
5. Okal, H., Ngetich, F., & Okeyo, J. (2020). Spatio-temporal characterisation of droughts using selected indices in Upper Tana River Watershed, Kenya. Scientific African. https://doi.org/10.1016/j.sciaf.2020.e00275  .
6. Okal, H. A., Ngetich, F. K., & Okeyo, J. M. (2019). Spatial Evaluation of Droughts Using Selected Satellite-based Indices in the Upper Tana River Watershed, Kenya. International Journal of Plant & Soil Science. https://doi.org/10.9734/ijpss/2019/v30i130164  .
7. Okeyo, J. M., Norton, J., Koala, S., Waswa, B., Kihara, J., & Bationo, A. (2016). Impact of reduced tillage and crop residue management on soil properties and crop yields in a long-term trial in western Kenya. Soil Research. https://doi.org/10.1071/SR15074
8. Kihara, J., Bationo, A., Waswa, B., Kimetu, J.M., Vanlauwe, B., Okeyo, J., Mukalama, J., Martius, C., 2012. Effect of Reduced Tillage and Mineral Fertilizer Application on Maize and Soybean Productivity. Experimental Agriculture 48(2), 159-175.
9. Tittonell P., A. Muriuki, K.D. Shepherd, D. Mugendi, K.C. Kaizzi, J. Okeyo, L. Verchot, R. Coe, B. Vanlauwe (2010). The diversity of rural livelihoods and their influence on soil fertility in agricultural systems of East Africa – A typology of smallholder farms. Agricultural Systems Journal 103: 83–97.
10. Okeyo J.M., Shepherd K.D., Wamicha W., and Shisanya C., (2006). Spatial Variations in Soil Organic Carbon within Smallholder Farms in Western Kenya; A Geospatial Approach. African Crop Science Journal, Vol. 14. No. 1, 27-36.

Presentation of Papers at Academic and Professional Conferences

1. Okeyo, Jeremiah, Kinyua M., Kihara J. 2019. The non-responsiveness of crops to fertilizers under some soils in sub-Saharan Africa. Agricultural Research for Development Conference (Agri4D 2019), 25-26 September 2019, Swedish University of Agricultural Sciences (SLU), Uppsula, Sweden.
2. Okeyo, J., Norton, J., Omondi, E., Norton, U., Odhiambo, J., Ngosia, D., 2014. Effect of conservation agriculture practices on total and labile soil carbon and nitrogen pools under contrasting agroecosystems in eastern Uganda and western Kenya. In: Proceedings of the 1st biennial international conference on bridging the gap between society, science and industry, held on 30th November to 5th December, 2014, Kenyatta University.
3. Okeyo, J., Norton, J., Omondi, E., Norton, U., Ngosia, D., Odhiambo, J., Ashilenge, D., 2014. Impact of conservation tillage on soil quality under smallholder farming systems in eastern Uganda and western Kenya. Paper presented at the Annual SANREM global workshop, 19-21 May 2014, Arlington, Virginia, USA.
4. Okeyo, J., Norton, J., Miller, S., Omondi, E., Ngosia, D., 2014. Estimation of soil erosion under conservation tillage systems using RUSLE model. Paper presented at the SANREM global workshop, 19-21 May 2014, Arlington, Virginia, USA.
5. Okeyo, J., Norton J., Koala S., 2013. The effect of tillage and crop residue application on total and labile soil organic carbon and nitrogen pools in a long-term conservation tillage trial in western Kenya. Paper presented at the ASA, CSSA, & SSSA International Annual meetings, 3-6 November, 2013, Tampa, Florida, USA.

Books/Book Chapters Published

1. Okeyo, J.M., 2018. Conservation Agriculture: Can it safeguard our soils? Policy Brief:  https://www.slu.se/globalassets/ew/org/andra-enh/uadm/global/agrifose/outputs/briefs/ilri/dr.-jeremiah-m.-okeyo-brief-october-2018.pdf  
2. Okeyo, J.M., 2014. The Effect of Conservation Agriculture Practices on Soil Quality and Crop Productivity under Contrasting Smallholder Farming Systems in Western Kenya and Eastern Uganda. PhD Dissertation, ProQuest Publishing, 176 pp.
3. Bationo, A., Waswa, B., Kihara, J., Adolwa, I., Vanlauwe, B., Saidou, K., Bationo, A., Waswa, B., Abdou, A., Bado, B.V., Bonzi, M., Iwuafor, E., Kibunja, C., Kihara, J., Mucheru, M., Mugendi, D., Mugwe, J., Mwale, C., Okeyo, J., Olle, A., Roing, K., Sedogo, M., 2012. Overview of Long Term Experiments in Africa, Lessons learned from Long-term Soil Fertility Management Experiments in Africa. Springer Netherlands, pp. 1-26.
4. Kihara, J., Mukalama, J., Ayuke, F.O., Njoroge, S., Waswa, B., Okeyo, J., Koala, S., Bationo, A., 2012. Crop and Soil Response to Tillage and Crop Residue Application in a Tropical Ferralsol in Sub-humid Western Kenya. In: A. Bationo, B. Waswa, J. Kihara, I. Adolwa, B. Vanlauwe, K. Saidou (Eds.), Lessons learned from Long-term Soil Fertility Management Experiments in Africa. Springer Netherlands, pp. 41-57.
5. Bationo, A., Waswa, B., Okeyo, J.M., Maina, F. and J.M. Kihara. 2011. Innovations as Key to the Green Revolution in Africa: Exploring the Scientific Facts (Vol 1 & 2). Springer, Dordrecht, The Netherlands, 1363.
6. Bationo, A., Waswa, B., Okeyo, J.M., Maina, F., Kihara, J. and U. Mokwunye. 2011. Fighting Poverty in Sub-Saharan Africa: The Multiple Roles of Legumes in Integrated Soil Fertility Management. Springer, Dordrecht, The Netherlands, 246.
7. Kihara J.  A. Bationo, B. Waswa and J. Okeyo (2009). Tillage, rotation and surface residue effects on crop water productivity in Nyabeda, western Kenya, as modeled using DSSAT. In: Humphreys, E. and Bayot, R.S. (Eds). Increasing the productivity and sustainability of rainfed cropping systems of poor smallholder farmers. Proceedings of the CGIAR Challenge Program on Water and Food International Workshop on Rainfed Cropping Systems, Tamale, Ghana, 22-25 September 2008. The CGIAR Challenge Program on Water and Food, Colombo, Sri Lanka. 311pp. Presented during CPWF workshop in Tamale Ghana in September 2008.
8. Bationo A., Tabo R., Okeyo J., Kihara J., Maina F., Traore PCS., and Waswa B., 2008. General Characteristics of the Volta Basin. In: Bationo A., Tabo R., Waswa B., Okeyo J., Kihara J. and Kabore S., (eds) Synthesis of soil, water and nutrient management research in the Volta Basin. EcoMedia.