Department/Unit: Crops Horticulture and Soil science
Qualifications: Dr.nat.techn.
PhD Institution: University of Natural Resources and Life Sciences
PhD dissertation title: Agriculture Dissertation Title: Impact of soil amendments on maize performance and soil nutrient status in legume-maize inter cropping and rotation systems in central rift valley province of Kenya
Current research interests and projects: Agroecology and sustainable natural resource management. Post graduate research supervision skills. Problem learning skills.
Selected publication 1: Lelei J., Onwonga R., Freyer B. 2011. The Effect of Organic-Based Nutrient Management Strategies on Soil Nutrient Availability and Maize Performance in Njoro, Kenya. In: Bationo A., Waswa B., Okeyo J., Maina F., Kihara J. (eds) Innovations as Key to the Green Revolution in Africa. Springer, Dordrecht (Book chapter and conference paper).
Selected publication 2: 38. R.N. Onwonga, J.J. Lelei, B. Freyer, J.K. Friedel, S.M. Mwonga and P. Wandahwa. 2008. Low cost techniques for enhancing N and P availability and maize (Zea mays L.) performance on acid soils. World Journal of Agricultural Sciences,4 (S): 862-873. ISSN 1817-3047.
Selected publication 3: Lelei, J. J. (2022). Analysis of Doctoral Supervision. International Journal of Advanced Research, 5(1), 21-29. https://doi.org/10.37284/ijar.5.1.562.
Selected publication 4: Mulonda, K., Indeche, A., Chabala, L. M., Kaluba, P., Simfukwe, P., Siatwiinda, S. 3. M., Orek, C., Lelei, J. J., Canwat, V., Phiri, E., Määttänen, S. & Laitinen, E. (2022). Application of problem-based learning in higher education in soil and climate change studies in Sub-Saharan Africa. HAMK Unlimited Professional, 16.6.2022. https://urn.fi/URN:NBN:fi-fe2022061546651.
Selected publication 5: Joyce J. Lelei and Richard N. Onwonga. 2014. White Lupin (Lupinus albus L. cv. Amiga) Increases Solubility of Minjingu Phosphate Rock, Phosphorus Balances and Maize Yields in Njoro Kenya. Sustainable Agriculture Research, 3 (3): 37-49. https://doi.org/10.5539/sar.v3n3p37
Selected publication 6: Joyce J. Lelei, Richard N. Onwonga, Joseph K. Macharia, 2014. Influence of soil amendments added to acid soils on soil biochemical properties, nitrogen uptake and hybrid maize yield in Nakuru, County Kenya. International Journal of Plant and Soil Science, 3(5): 467-484. https://doi.org/10.9734/IJPSS20147817
Selected publication 7: Obondo Kevin O., Joyce J. Lelei and Samuel M. Mwonga. 2021. Soil properties and maize (Zea mays L.) growth and yield response to water hyacinth (Eichhornia crassipes) compost application in Lake Victoria Basin, Kenya Journal of Soil science and Environmental Management. Vol. 12(1), pp. 17-28, https://doi.org/10.5897/JSSEM2020.0856.
Selected publication 8: Aloys Fashaho, George M Ndegwa, Joyce J Lelei, Amos O Musandu and Samuel M Mwonga (2020): Effect of land terracing on soil physical properties across slope positions and profile depths in medium and high altitude regions of Rwanda, South African Journal of Plant and Soil, 37:2, 91-100. https://doi.org/10.1080/02571862.2019.1665722
Selected publication 9: Richard N. Onwonga, Ruth C. Sitienei, Joyce J. Lelei and Peter Kamoni. 2020. Complementary effects of legume integration and fertilizer application on soil moisture and long-term carbon stocks in maize systems of Kabete sub-county, Kenya. Tropical and Subtropical Agroecosystems 23 (2020): #22. http://www.revista.ccba.uady.mx/ojs/index.php/TSA/article/view/2934.
Selected publication 10: Tabere, D., Joyce J. Lelei, Josephine P. Ouma. 2020. Effect of Sugarcane Bagasse Ash and Manure Amendments on Selected Soil Properties in Western Kenya. African Journal of Agricultural Research. 16(11): 1554-1561. https://doi.org/10.5897/AJAR2020.15194
Capstone assignment title: ANALYSIS OF DOCTORAL SUPERVISION
Capstone assignment abstract: Sustainable development goal four is to ensure inclusive and equitable quality education and promote lifelong learning for all by 2030. One target of achieving this is by 2020, substantially expand globally the number of scholarships available to developing countries, in particular least developed countries, Small Island developing States and African countries, for enrolment in higher education. Egerton University has been a recipient of several postgraduate scholarships in the past few years, mainly; the World Bank’s Centre of Excellence in Sustainable Agriculture and Agribusiness management, the Regional Forum for Capacity Building in Agriculture and the African Development Bank. The availability of these scholarships has catapulted enrolment in doctoral studies by students from several African countries. Majority of supervisors in the field of agricultural science at Egerton University are guiding their first doctoral students. The quality of their supervision practice has not been examined. Assessing supervision practice and addressing weak points can result in better relationship between student and supervisor, and ultimately produce quality graduates who will spur research and development. Government industry and business are interested in high quality graduates. The aim of the study was to contribute to the quality of doctoral students by assessing their perception of supervision they experienced. The postgraduate research experience questionnaire (PREQ) was issued to soil science doctoral students in order to obtain information on their perception of supervision. The study recommends (i) self-evaluation of supervisors. This will point out weak areas in supervision and when corrected will ensure quality of graduates, (ii) include doctoral students from all University programmes in a future survey to determine perception of their supervision, preferably after thesis examination, and (iii) conduct tracer studies of doctorate graduates. The career history information for holders of research doctorates can help Universities prepare students for the job market.
