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JOSEPH GWEYI-ONYANGO
JOSEPH GWEYI-ONYANGO
Associate professor, Plant nutrition/systems agronomist, Department of Agriculture, Kenyatta
Verified email at ku.ac.ke
Title
Cited by
Cited by
Year
Optimizing maize yield, nitrogen efficacy and grain protein content under different N forms and rates
IO Ochieng’, HI Gitari, B Mochoge, E Rezaei-Chiyaneh, ...
Journal of Soil Science and Plant Nutrition 21 (3), 1867-1880, 2021
542021
Contract sugarcane farming and farmers’ incomes in the Lake Victoria basin, Kenya
F Waswa, JP Gweyi-Onyango, M Mcharo
Journal of applied Biosciences 52, 3685-3695, 2012
482012
Variability of soybean response to rhizobia inoculant, vermicompost, and a legume-specific fertilizer blend in Siaya County of Kenya
C Mathenge, M Thuita, C Masso, J Gweyi-Onyango, B Vanlauwe
Soil and Tillage research 194, 104290, 2019
382019
Grain yield responses of lowland rice varieties to increased amount of nitrogen fertilizer under tropical highland conditions in central Kenya
SM Njinju, H Samejima, K Katsura, M Kikuta, JP Gweyi-Onyango, ...
Plant Production Science 21 (2), 59-70, 2018
382018
Effects of different nitrogen forms on growth, phenolics, flavonoids and antioxidant activity in amaranth species
R Munene, E Changamu, N Korir, GO Joseph
Trop. Plant Res 4 (1), 81-89, 2017
372017
Greenhouse gases emissions in agricultural systems and climate change effects in Sub-Saharan Africa
W Ntinyari, JP Gweyi-Onyango
African handbook of climate change adaptation, 1-25, 2020
332020
Protein, calcium, zinc, and iron contents of finger millet grain response to varietal differences and phosphorus application in Kenya
WN Wafula, NK Korir, HF Ojulong, M Siambi, JP Gweyi-Onyango
Agronomy 8 (2), 24, 2018
322018
Plant row spacing effect on growth and yield of green pepper (Capsicum annuum L.) in Western Kenya
O Edgar, J Gweyi-Onyango, N Korir
Archives of Current Research International 7 (3), 1-9, 2017
302017
Finger millet (Eleusine coracana L.) grain yield and yield components as influenced by phosphorus application and variety in Western Kenya
WN Wafula, KN Korir, HF Ojulong, M Siambi, JP Gweyi-Onyango
Tropical Plant Research 3 (3), 673-680, 2016
302016
Cadmium mobility, uptake, and accumulation in spinach, kale, and amaranths vegetables as influenced by silicon fertilization
MM Ngugi, HI Gitari, C Muii, JP Gweyi-Onyango
Bioremediation Journal 26 (2), 113-127, 2022
252022
Agricultural Extension Approaches influencing uptake of improved sorghum technologies in Embu County, Kenya
EL Chimoita, CM Onyango, JW Kimenju, JP Gweyi-Onyango
Universal Journal of Agricultural Research 5 (1), 39-45, 2017
202017
Effects of different forms of nitrogen on relative growth rate and growth components of tomato (Lycopersicon esculentum Mill.)
JP Gweyi-Onyango, G Neumann, V Roemheld
African Journal of Horticultural Science 2, 43-55, 2009
202009
Growth tolerance, concentration, and uptake of heavy metals as ameliorated by silicon application in vegetables
MM Ngugi, HI Gitari, CW Muui, JP Gweyi-Onyango
International Journal of Phytoremediation 24 (14), 1543-1556, 2022
192022
A comparative study of plant species composition of grasslands in Saiwa Swamp National Park and Kakamega Forest, Kenya
PE Akwee, VA Palapala, JP Gweyi-Onyango
Journal of Biodiversity 1 (2), 77-83, 2010
192010
Effects of arbuscular mycorrhizal fungal inoculation on growth and yield of two sweet potato varieties
MA Sakha, J Jefwa, JP Gweyi-Onyango
Journal of Agriculture and Ecology Research International 18 (3), 1-8, 2019
182019
Safe vegetable production with wastewater in developing countries: demystifying the negative notions
JP Gweyi-Onyango, M Osei-Kwarteng
African Journal of Horticultural Science 5, 70-83, 2011
162011
Differences in seasons and rice varieties provide opportunities for improving nitrogen use efficiency and management in irrigated rice in Kenya
JP Gweyi-Onyango, W Ntinyari, A OgollaEgesa, R Mose, S Njinju, ...
Environmental Research Letters 16 (7), 075003, 2021
142021
Socio-economic and institutional factors influencing uptake of improved sorghum technologies in Embu, Kenya
EL Chimoita, CM Onyango, JP Gweyi-Onyango, JW Kimenju
East African Agricultural and Forestry Journal 83 (2), 69-79, 2019
142019
Assessment of the 2006 Abuja fertilizer declaration with emphasis on nitrogen use efficiency to reduce yield gaps in maize production
N Winnie, M Giweta, J Gweyi-Onyango, B Mochoge, J Mutegi, ...
Frontiers in Sustainable Food Systems 5, 758724, 2022
132022
Agricultural interventions to enhance climate change adaptation of underutilized root and tuber crops
JP Gweyi-Onyango, MA Sakha, J Jefwa
African Handbook of Climate Change Adaptation, 61-86, 2021
132021
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