Dr. Jean-Martial Johnson
INRES - Plant Nutrition
Karlrobert-Kreiten-Strasse 13
D-53115 Bonn
j.johnson@uni-bonn.de
+49 228 73-2924
Research focus
Agronomy; Plant nutrition; Soil fertility; Water management; Yield gap analysis
Education
2017-2024
PhD at the Faculty of Agricultural, Nutritional and Engineering Sciences, University of Bonn, Germany
2009-2010
MSc in Natural Resource Management, University of Abomey-Calavi, Benin
2003-2008
Agricultural engineer degree in Crop and Soil Science, University of Abomey-Calavi, Benin
Positions held
seit 2023
Research assistant at the Department of Crop Science and Resource Conservation, University of Bonn, Germany
2021-2022
Data-driven Agronomy Consultant, Africa Rice Center, Bouaké, Côte d’Ivoire
2018-2020
Research Associate, Institut de l'Environnement et de Recherches Agricoles, Bobo-Dioulasso, Burkina Faso
2012-2017
Research assistant & Soil laboratory manager, Africa Rice Center, Bouaké, Côte d’Ivoire
Selected publications
Johnson J.-M. (2024) Effects of alternate wetting and drying irrigation on rice productivity in Burkina Faso. Ph.D. thesis, Bonn, Germany, Rheinische Friedrich-Wilhelms-Universität Bonn. https://doi.org/10.48565/bonndoc-410
Johnson J.-M., Becker M., Dossou-Yovo E.R., Saito K. (2024) Enhancing rice yields, water productivity, and profitability through alternate wetting and drying technology in farmers’ fields in the dry climatic zones of West Africa. Agricultural Water Management 304: 109096. https://doi.org/10.1016/j.agwat.2024.109096
Johnson J.-M., Becker M., Dossou-Yovo E.R., Saito K. (2024) Improving rice yield and water productivity in dry climatic zones of West Africa: Season-specific strategies. Field Crops Res 316:109519. https://doi.org/10.1016/j.fcr.2024.109519
Johnson J.-M., Becker M., Kaboré J.E.P., et al. (2024) Alternate wetting and drying: a water-saving technology for sustainable rice production in Burkina Faso? Nutr Cycl Agroecosystems 129:93–111. https://doi.org/10.1007/s10705-024-10360-x
Johnson J.-M., Becker M., Dossou-Yovo E.R., Saito K. (2023) Farmers’ perception and management of water scarcity in irrigated rice-based systems in dry climatic zones of West Africa. Agron Sustain Dev 43:32. https://doi.org/10.1007/s13593-023-00878-9
Johnson J.-M., Ibrahim A., Dossou-Yovo E.R., et al. (2023) Inorganic fertilizer use and its association with rice yield gaps in sub-Saharan Africa. Glob Food Secur 38:100708. https://doi.org/10.1016/j.gfs.2023.100708
Rakotoson T., Senthilkumar K., Johnson J.-M., et al. (2023) Estimating nutrient concentrations and uptake in rice grain in sub-Saharan Africa using linear mixed-effects regression. Field Crops Research 299:108987. https://doi.org/10.1016/j.fcr.2023.108987
Djagba J.F., Johnson J.-M., Saito K. (2022) Can soil fertility properties in rice fields in sub-Saharan Africa be predicted by digital soil information? A case study of AfSoilGrids250m. Geoderma Regional 30:e00563. https://doi.org/10.1016/j.geodrs.2022.e00563
Johnson J.-M., Sila A., Senthilkumar K., et al. (2021) Application of infrared spectroscopy for estimation of concentrations of macro- and micronutrients in rice in sub-Saharan Africa. Field Crops Research 270:108222. https://doi.org/10.1016/j.fcr.2021.108222
Rodenburg J., Johnson J.-M., Dieng I., et al. (2019) Status quo of chemical weed control in rice in sub-Saharan Africa. Food Sec 11:69–92. https://doi.org/10.1007/s12571-018-0878-0
Johnson J.-M., Vandamme E., Senthilkumar K., et al. (2019) Near-infrared, mid-infrared or combined diffuse reflectance spectroscopy for assessing soil fertility in rice fields in sub-Saharan Africa. Geoderma 354:113840. https://doi.org/10.1016/j.geoderma.2019.06.043
Johnson J.-M., Rodenburg J., Tanaka A., et al. (2019) Farmers’ perceptions on mechanical weeders for rice production in sub-Saharan Africa. Exp Agric 55:117–131. https://doi.org/10.1017/S001447971700059X
Saito K., Vandamme E., Johnson J.-M., et al. (2019) Yield-limiting macronutrients for rice in sub-Saharan Africa. Geoderma 338:546–554. https://doi.org/10.1016/j.geoderma.2018.11.036
Tanaka A., Johnson J.-M., Senthilkumar K., et al. (2017) On-farm rice yield and its association with biophysical factors in sub-Saharan Africa. Eur J Agron 85:1–11. https://doi.org/10.1016/j.eja.2016.12.010