Dr. Joseph Gweyi-Onyango

HAK brief

Joined HAK in 2008 as a member

Committee member 2009, Vice treasurer 2012-2015

2015 to-date committee member



DAAD re-invitation in 2010, University of Hannover, Germany

PhD, Plant Nutrition (University of Hohenheim, Stuttgart Germany, 2002-2006)

MSc, Agronomy (University of Nairobi, 1993-1998)

BSc, Agriculture (University of Nairobi, 1988-1991)


Employment records

Senior Lecturer (2012, to-date)- Kenyatta University

Lecturer (2010-2012)- Kenyatta University

Lecturer (2007-2009)- Masinde Muliro University of Science and Technology

Agricultural officer, (1997-2007)- Ministry of Agriculture


Selected publications

Grace J. Chirchir, Maina Mwangi, Desterio O. Nyamongo, Joseph P. Gweyi-Onyango (2016). Soybean farm-saved seed viability and vigor as Influenced by agroecological conditions of Meru South Sub-county, Kenya. Journal of Applied Biosciences. 101: 9634-1942.ISSN 1997–5902

Rosally A Onyango, Wilson M Thagana, Laura Karanja and Joseph Onyango-Gweyi (2016). Assessment of Sweet Potato propagules for Re-infection by various viruses in East Kamagak Location-Homa Bay County- Kenya. American Journal of Experimental Agriculture. 11(1):1-9. ISSN:2231-0606. Doi:10.9734/AJAEA/2016/21868

Filbert L. Ahmat; Jayne N. Mugwe; Stephen K. Kimani, and Joseph P. Gweyi-Onyango (2014). Maize response to Tithonia diversifolia and rock phosphate application under two maize cropping systems in Kenya. Journal of Applied Biosciences 79:6983 – 6991. ISSN 1997–5902

Waswa F, Gweyi-Onyango J P, Mucharo M (2012). Contract sugarcane farming and farmers’ incomes in the Lake Victoria basin, Kenya. Journal of Applied Biosciences. 52:3685-3695. ISSN 1997-5902

Joseph P Gweyi-Onyango and Mildred Osei-Kwarteng (2011). Safe Vegetable Production with Wastewater in Developing Countries: Demystifying Negative notions:  African Journal of  Horticultural Science. 5:70-83

Gweyi-Onyango J P, Tesfamariam T and Günter N (2011). Contrasting Responses to Phosphorus status by Arachis pintoi (Krapov and W.C Gregory): A Lesson for Selecting Vegetables for Cultivation in Kenyan Ecozones. Asian Journal of Agricultural Research. 5(1): 45-55.Doi:10.3923/ajar.2011.

Joseph P Gweyi-Onyango, Peter Akwee, Christine Onyango and Tesfamaria Tsehaye (2011). Genotypic responses of Cowpea (Vigna anguiculata) to Sub-Optical Phosphorus Supply in Alfisols of Western Kenya: A Comparative Analysis of Legumes. Journal of Agricultural Sciences. Vol 1(2): 1-8.


Email- josephonyango2002@yahoo.co.uk