Richard N. Onwonga (PhD)

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Dr. J.J. LELEIDEPARTMENT OF CROPS HORTICULTURE SOILS EGERTON UNIVERSITYVerifierad e-postadress på egerton.ac.ke
George N KarukuProfessor of Agro-Environmental Soil PhysicsVerifierad e-postadress på uonbi.ac.ke
Cecilia Moraa OnyangoDepartment of Plant Science and Crop Protection, University of NairobiVerifierad e-postadress på uonbi.ac.ke
vincent Mbindo KathumoResearcherVerifierad e-postadress på uonbi.ac.ke
George N. Chemining'waProfessor of Agronomy (UoN), Turkana University CollegeVerifierad e-postadress på tuc.ac.ke
Templer NoelInternational Maize and Wheat Improvement Centre (CIMMYT)Verifierad e-postadress på cgiar.org
Prof. John MburuDepartment of Agricultural Economics, University of NairobiVerifierad e-postadress på uonbi.ac.ke
Geoffrey KironchiProfessor of Soil Science, University of nairobiVerifierad e-postadress på uonbi.ac.ke
Dr. Stephen M MureithiSenior Lecturer, Department of Land Resource Management and Agricultural Technology, University ofVerifierad e-postadress på uonbi.ac.ke
Nancy Njarua KaranjaProfessor of Soil EcologyVerifierad e-postadress på uonbi.ac.ke
Prof. Solomon ShibairoProfessor of Horticulture, Masinde Muliro University of Science and TechnologyVerifierad e-postadress på mmust.ac.ke
Prof. Oliver V. Wasonga (www.oliverw...Assocaite Professor, Dryland Ecology & Climate Change AdaptationVerifierad e-postadress på uonbi.ac.ke
Mwangi James KinyanjuiKaratina universityVerifierad e-postadress på karu.ac.ke
Nictor NamoiUniversity of Illinois Urbana-ChampaignVerifierad e-postadress på illinois.edu
Rolf SommerWWF GermanyVerifierad e-postadress på wwf.de
KALLUNDE PILLY SIBUGAProfessor of Weed Science and Agronomy, Department of Crop Science and Production, SokoineVerifierad e-postadress på suanet.ac.tz
Lorenz ProbstInstitute for Development Research, University of Natural Resources and Life SciencesVerifierad e-postadress på boku.ac.at
Raphael WahomeProfessor of livestock production systems, university of NairobiVerifierad e-postadress på uonbi.ac.ke
Dr. Collins Oduor OndiekUnited States International University-AfricaVerifierad e-postadress på usiu.ac.ke
David E. PelsterAgriculture and Agri-Food CanadaVerifierad e-postadress på canada.ca

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Richard N. Onwonga (PhD)

Department of Land Resource Management and Agricultural Technology, University of Nairobi

Verifierad e-postadress på uonbi.ac.ke - Startsida

Nutrient cycling Soil Agroecology Organic Agriculture Biophysical Modelling


Titel Sortera efter citat Sortera efter år Sortera efter titel	Citeras av Citeras av	År
Mineral nitrogen and microbial biomass dynamics under different acid soil management practices for maize production RN Onwonga, JJ Lelei, BB Mochoge Journal of Agricultural Science 2 (1), 16, 2010	61	2010
A transformative university learning experience contributes to sustainability attitudes, skills and agency L Probst, L Bardach, D Kamusingize, N Templer, H Ogwali, A Owamani, ... Journal of Cleaner Production 232, 648-656, 2019	56	2019
Enhancing soil organic carbon, particulate organic carbon and microbial biomass in semi-arid rangeland using pasture enclosures CO Oduor, NK Karanja, RN Onwonga, SM Mureithi, D Pelster, G Nyberg BMC ecology 18, 1-9, 2018	53	2018
Low cost technologies for enhancing N and P availability and maize (Zea mays L.) performance on acid soils RN Onwonga, JJ Lelei, B Freyer, JK Friedel, SM Mwonga, P Wandhawa World Journal of Agricultural Sciences 4 (5), 862-873, 2008	53	2008
Index-based agricultural insurance products: challenges, opportunities and prospects for uptake in sub-Sahara Africa N Ntukamazina, RN Onwonga, R Sommer, JC Rubyogo, CM Mukankusi, ... Kassel University Press, 2017	50	2017
Assessment of Mangrove Cover Change and Biomass in Mida Creek, Kenya FA Onwonga Richard, Kinyanjui Mwangi James, Oliver Wasonga Open Journal of Forestry 4 (4), 398-413., 2014	45*	2014
Effect of inorganic and organic fertilizers on the performance and profitability of grain amaranth (Amaranthus caudatus L.) in Western Kenya RO Nyankanga, RN Onwonga, FS Wekesa, D Nakimbugwe, D Masinde, ... Journal of Agricultural Science 4 (1), 223, 2012	42	2012
Organic based nutrient management strategies: effect on soil nutrient availability and maize (Zea mays L.) performance in Njoro, Kenya JJ Lelei, RN Onwonga, B Freyer African Journal of Agricultural Research 4 (2), 92-99, 2009	42	2009
Climate change effects on crop production in Yatta sub-county: farmer perceptions and adaptation strategies BL Agesa, CM Onyango, VM Kathumo, RN Onwonga, GN Karuku African Journal of Food, Agriculture, Nutrition and Development 19 (1 …, 2019	38	2019
Carbon stocks and stock changes in agroforestry practices: a review H Agevi, R Onwonga, S Kuyah, M Tsingalia Tropical and Subtropical Agroecosystems, 2017	37	2017
Variation of nutritional and anti-nutritional contents in finger millet (Eleusine coracana (L.) Gaertn) genotypes J Ambuko, R Onwonga, O Nyongesa, SI Shibairo University of Nairobi, 2014	37	2014
Evaluation of types and factors influencing adoption of rainwater harvesting techniques in Yatta district, Kenya RN Onwonga, DM Mburu, YA Elhadi University of Nairobi, 2013	33	2013
Effect of excessive and minimal soil moisture stress on agronomic performance of bush and climbing bean (Phaseolus vulgaris L.) N Ntukamazina, RN Onwonga, R Sommer, CM Mukankusi, J Mburu, ... Cogent Food & Agriculture 3 (1), 1373414, 2017	31	2017
Climate change and variability: Farmers’ perception, experience and adaptation strategies in Makueni County, Kenya KT Kitinya, RN Onwonga, C Onyango, JP Mbuvi, G Kironchi Asian Journal of Agriculture and Rural Development 2 (3), 411-421, 2012	26	2012
Comparative effects of soil amendments on phosphorus use and agronomic efficiencies of two maize hybrids in acidic soils of molo county, Kenya. RN Onwonga, JJ Lelei, JK Macharia	25	2013
Effect of nitrogen source, crop maturity stage and storage conditions on phenolics and oxalate contents in vegetable amaranth (Amaranthus hypochondriacus) CM Onyango, J Harbinson, JK Imungi, RN Onwonga, O van Kooten Journal of Agricultural Science 4 (7), 219-230, 2012	24	2012
Impact of traditional farming practices on nutrient balances in smallholder farming systems of Nakuru District, Kenya R Onwonga, B Freyer Proceedings of the Tropentag conference October, 11-13, 2006	23	2006
Use of Dolichos (Lablab Purpureus L.) and combined fertilizers enhance soil nutrient availability, and maize (Zea Mays L.) yield in farming systems of Kabete Sub County Kenya RC Sitienei, RN Onwonga, JJ Lelei, P Kamoni Agricultural Science Research Journal 7 (2), 47-61, 2017	21	2017
White lupin (Lupinus albus L. cv. Amiga) increases solubility of Minjingu phosphate rock, phosphorus balances and maize yields in Njoro Kenya JJ Lelei, RN Onwonga Sustainable Agriculture Research 3 (3), 37-49, 2014	21	2014
Relationships between agronomic practices, soil chemical characteristics and Striga reproduction in Dryland areas of Tanzania K Abdul, GN Chemining’wa, RN Onwonga Journal of Agricultural Science and Technology, 2022	20	2022

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