Dr. Jacob Ulzen
Dr Jacob Ulzen holds a Bachelor’s degree in Agriculture with first class honours and Masters in Soil Science from Kwame Nkrumah University of Science and Technology (KNUST). He was a graduate research fellow of International Institute of Tropical Agriculture (IITA) on the COMPRO II Project, which led to a PhD degree in Soil Science at KNUST. Ulzen has a considerable experience in field and greenhouse experimentations.
Jacob’s research interest includes but not limited to Integrated Soil Fertility Management (ISFM), Fertilizer testing and Evaluation, Biological Nitrogen Fixation in Tropical Legumes, Rhizobia Ecology, Soil-Plant-Microbes Interaction and Understanding and Developing Climate Smart Agriculture technologies.
Jacob has worked as a technician for N2AFRICA Project Phase I at KNUST, where he was involved in bio-prospecting of rhizobia from wild legumes for subsequent evaluation for elite strain on soybean. He has been involved in disseminating rhizobium technologies to farmers in the northern part of Ghana; as part of the COMPRO II Project. He was involved in preparing training modules and training private sector organizations in basic rhizobiology including inoculant quality control. Prior to his appointment as Research Scientist at Soil Research Institute, he was the coordinator of a tracer study for the AGRA Soil Health Program at KNUST.
Ulzen, J., Abaidoo, R. C., Ewusi-Mensah, N., and Masso, C. 2018. On-farm evaluation and determination of sources of variability of soybean response to Bradyrhizobium inoculation and phosphorus fertilizer in northern Ghana. Agriculture, Ecosystems & Environment 267, 23-32.
Ulzen, J., Abaidoo, R.C., Masso, C., Owusu-Ansah, E.D.J. and Ewusi-Mensah, N., 2018. Is there a need for Bradyrhizobium yuanmingense and B. japonicum reinoculation in subsequent cropping seasons under smallholder farmers’ conditions? Applied Soil Ecology, 128: 54 – 60
Ulzen J, Abaidoo RC, Mensah NE, Masso C and AbdelGadir AH. 2016. Bradyrhizobium Inoculants Enhance Grain Yields of Soybean and Cowpea in Northern Ghana. Frontiers in Plant Science, 7:1770. Doi: 10.3389/fpls.2016.01770
Masso, C., Mukhongo, R.W., Thuita, M., Abaidoo, R., Ulzen, J., Kariuki, G. and Kalumuna, M., 2016. Biological Inoculants for Sustainable Intensification of Agriculture in Sub-Saharan Africa Smallholder Farming Systems. In Climate Change and Multi-Dimensional Sustainability in African Agriculture (pp. 639-658). Springer International Publishing.
Ophelia Osei, I. de A. J. Menezes, J. Ulzen, J. R.C. Rouws, B. D. K. Ahiabor, R. M. Boddey, R. C. Abaidoo and L. F. M. Rouws. Characterization of effective native rhizobia isolates for groundnut inoculation in Ghana. Abstract presented at XXVII RELAR –Reunion of Latin America Rhizobiologist. 6 – 9 June, Londrina – PR, Brazil
O. Osei, R. C. Abaidoo, N. Ewusi-Mensah, J. Ulzen and A. Opoku. 2016. Symbiotic Potential of Isolates from Indigenous Rhizobia Population in Ghana. Sustainable Grain Legume Systems for Food, Income and Nutritional Security in a Rapidly Changing Climate. 28 February to 4 March. Livingstone, Zambia.
J. Ulzen, N Ewusi-Mensah, R. C. Abaidoo and A. Opoku. 2016. Symbiotically Effective Native Rhizobial Obviate Significant Response to Inoculation with Foreign Strains. Sustainable Grain Legume Systems for Food, Income and Nutritional Security in a Rapidly Changing Climate. 28 February to 4 March. Livingstone, Zambia.
J. Ulzen, R. C. Abaidoo, A. H. AbdelGadir, C. Masso. 2016. Commercial Rhizobia Inoculants Effect on Grain Yield of Soybean and Cowpea in Ghana. Sustainable Grain Legume Systems for Food, Income and Nutritional Security in a Rapidly Changing Climate. 28 February to 4 March. Livingstone, Zambia.
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