Experienced research program director with a passion for delivering trans-disciplinary research products and assessing sustainability outcomes. Skilled at engaging diverse stakeholders and developing mission-driven strategic plans that foster team buy-in. Known for strong cross-cultural communication and problem-solving abilities, reliability, and a results-driven mindset.
Sustainable Agriculture
Devkota, K.P., Beebout, S.E.J., Sudhir-Yadav, and Bunquin, M.A.B. 2022. Setting sustainability targets for irrigated rice production and application of the Sustainable Rice Platform performance indicators. Environmental Impact Assessment Review 92:106697. https://doi.org/10.1016/j.eiar.2021.106697
Devkota, K.P., Pasuquin, E., Elmido-Mabilangan, A., Dikitanan, R., Singleton, G.R., Stuart, A.M., Vithoonjit, D., Viriyangkura, L., Pustika, A.B., Afriani, R., Listyowati, C.L., Keerthisena, R.S.K., Kieu, N.T., Malabayabas, A.J., Hu, R., Pan, J., and Beebout, S.E.J. 2019. Economic and environmental indicators of sustainable rice cultivation: A comparison across intensive irrigated rice cropping systems in six Asian countries. Ecological Indicators 105:199-214. https://doi.org/10.1016/j.ecolind.2019.05.029
Stuart, A., Devkota, K., Sato, T., Pame, A.R.P., Balingbing, C., Nguyen, T.M.P., Nguyen, T.K., Pham, T.M.H., Tran, H.L., Beebout, S., Singleton, G.R. 2018. On-farm assessment of different rice crop management practices in the Mekong Delta, Vietnam, using sustainability performance indicators. Field Crops Research 229:103-114. https://doi.org/10.1016/j.fcr.2018.10.001
Multidisciplinary
Harmel, R.D., Kleinman, P., Eve, M., Ippolito, J.A., Beebout, S., Delgado, J., Vandenberg, B., and Buser, M. 2021. The Partnerships for Data Innovations (PDI): Facilitating data stewardship and catalyzing research engagement in the digital age. Agricultural and Environmental Letters 6:e20055. https://doi.org/10.1002/ael2.20055
Rubianes, F.H.C., B.P. Mallikarjuna Swamy, and S.E. Johnson-Beebout. 2018. Irrigation management risks and Zn fertilization needs in Zn biofortification breeding in lowland rice. Experimental Agriculture 54(3):382-398. https://doi.org/10.1017/S0014479717000084
Mabesa, R.L., S.M. Impa, D. Grewal, and S.E. Johnson-Beebout. 2013. Contrasting grain-Zn response of biofortification rice (Oryza sativa L.) breeding lines to foliar Zn application. Field Crops Research 149:223–233. https://doi.org/10.1016/j.fcr.2013.05.012
Impa, S.M., M.J. Morete, A.M. Ismail, R. Schulin, and S.E. Johnson-Beebout. 2013. Zn uptake, translocation, and grain Zn loading in rice (Oryza sativa L.) genotypes selected for Zn-deficiency tolerance and high grain Zn. Journal of Experimental Botany 64(10):2739-2751. https://doi.org/10.1093/jxb/ert118
Redox Chemistry
Wells, N.S., Clough, T.J., Johnson-Beebout, S.E., and Baisden, W.T. 2019. Effects of denitrification and transport on the isotopic composition of nitrate (δ18O, δ15N) in freshwater systems. Science of the Total Environment 651(2): 2228-2234. https://doi.org/10.1016/j.scitotenv.2018.10.065
Affholder, M.C., Weiss, D.J., Wissuwa, M., Johnson-Beebout, S.E., and Kirk, G.J.D. 2017. Soil CO2 venting as one of the mechanisms for tolerance of Zn deficiency by rice in flooded soils. Plant, Cell & Environment 40(12):3018-3030. https://doi.org/10.1111/pce.13069
Bunquin, M.A.B., S.Tandy, S. Johnson Beebout, and R. Schulin. 2017. Influence of soil properties on Zn solubility dynamics under different redox conditions in non calcareous soils. Pedosphere 27(1):96-105. https://doi.org/10.1016/S1002 0160(17)60299-6
Johnson-Beebout, S.E., J.B. Goloran, F.H.C. Rubianes, J.D.C. Jacob, and O.B. Castillo. 2016. Zn uptake behavior of rice genotypes and its implication on grain Zn biofortification. Scientific Reports 6:38301. https://doi.org/10.1038/srep38301
Tuyogon, D.S.J., S.M. Impa, O.B. Castillo, W. Larazo, and S.E. Johnson-Beebout. 2016. Enriching rice grain Zn through Zn fertilization and water management. Soil Science Society of America Journal 80:121-134. https://doi.org/10.2136/sssaj2015.07.0262
Reviews
Slamet-Loedin, I.H., S.E.Johnson-Beebout, S.M. Impa and N. Tsakirpaloglou. 2015. Enriching rice with Zn and Fe while minimizing Cd risk. Frontiers in Plant Science 6:121. https://doi.org/10.3389/fpls.2015.00121
Impa, S.M., and S.E. Johnson-Beebout. 2012. Mitigating zinc deficiency and achieving high grain Zn in rice through integration of soil chemistry and plant physiology research. Plant and Soil 361:3-41. https://doi.org/10.1007/s11104-012-1315-3
Bijay-Singh, Shan YH, Johnson-Beebout SE, Yadvinder-Singh, Buresh RJ. 2008. Crop residue management for lowland rice-based cropping systems in Asia. Advances in Agronomy 98:117–199. https://doi.org/10.1016/s0065-2113(08)00203-4
Sustainable Agriculture
Devkota, K.P., Beebout, S.E.J., Sudhir-Yadav, and Bunquin, M.A.B. 2022. Setting sustainability targets for irrigated rice production and application of the Sustainable Rice Platform performance indicators. Environmental Impact Assessment Review 92:106697. https://doi.org/10.1016/j.eiar.2021.106697
Devkota, K.P., Pasuquin, E., Elmido-Mabilangan, A., Dikitanan, R., Singleton, G.R., Stuart, A.M., Vithoonjit, D., Viriyangkura, L., Pustika, A.B., Afriani, R., Listyowati, C.L., Keerthisena, R.S.K., Kieu, N.T., Malabayabas, A.J., Hu, R., Pan, J., and Beebout, S.E.J. 2019. Economic and environmental indicators of sustainable rice cultivation: A comparison across intensive irrigated rice cropping systems in six Asian countries. Ecological Indicators 105:199-214. https://doi.org/10.1016/j.ecolind.2019.05.029
Stuart, A., Devkota, K., Sato, T., Pame, A.R.P., Balingbing, C., Nguyen, T.M.P., Nguyen, T.K., Pham, T.M.H., Tran, H.L., Beebout, S., Singleton, G.R. 2018. On-farm assessment of different rice crop management practices in the Mekong Delta, Vietnam, using sustainability performance indicators. Field Crops Research 229:103-114. https://doi.org/10.1016/j.fcr.2018.10.001
Biofortification
Miner, G.L., C.E. Stewart, J.A. Delgado, J.A. Ippolito, R.E. Mason, S.D. Haley, M.J. Guttieri, E.A. Ainsworth, J.M. McGrath, and S.J. Beebout. 2024. Global change impacts on mineral nutritional quality of cereal grains: Coordinated datasets and analyses to advance a systems-based understanding. Field Crops Research 310:109338. https://doi.org/10.1016/j.fcr.2024.109338
Goloran, J.B., Johnson-Beebout, S.E., Morete, M.J., Impa, S.M., Kirk, G.J.D., Wissuwa, M. 2019. Grain Zn concentrations and yield of Zn-biofortified versus Zn-efficient rice genotypes under contrasting growth conditions. Field Crops Research 234:26-32. https://doi.org/10.1016/j.fcr.2019.01.011
Rubianes, F.H.C., B.P. Mallikarjuna Swamy, and S.E. Johnson-Beebout. 2018. Irrigation management risks and Zn fertilization needs in Zn biofortification breeding in lowland rice. Experimental Agriculture 54(3):382-398. https://doi.org/10.1017/S0014479717000084
Mori, A., Kirk, G.J.D., Lee, J-S., Morete, M.J., Nanda, A.K., Johnson-Beebout, S.E., Wissuwa, M. 2016. Rice genotype differences in tolerance of zinc-deficient soils: Evidence for the importance of root-induced changes in the rhizosphere. Frontiers in Plant Science 6 - 2015. https://doi.org/10.3389/fpls.2015.01160
Johnson-Beebout, S.E., J.B. Goloran, F.H.C. Rubianes, J.D.C. Jacob, and O.B. Castillo. 2016. Zn uptake behavior of rice genotypes and its implication on grain Zn biofortification. Scientific Reports 6:38301. https://doi.org/10.1038/srep38301
Tuyogon, D.S.J., S.M. Impa, O.B. Castillo, W. Larazo, and S.E. Johnson-Beebout. 2016. Enriching rice grain Zn through Zn fertilization and water management. Soil Science Society of America Journal 80:121-134. https://doi.org/10.2136/sssaj2015.07.0262
Mabesa, R.L., S.M. Impa, D. Grewal, and S.E. Johnson-Beebout. 2013. Contrasting grain-Zn response of biofortification rice (Oryza sativa L.) breeding lines to foliar Zn application. Field Crops Research 149:223–233. https://doi.org/10.1016/j.fcr.2013.05.012
Impa, S.M., M.J. Morete, A.M. Ismail, R. Schulin, and S.E. Johnson-Beebout. 2013. Zn uptake, translocation, and grain Zn loading in rice (Oryza sativa L.) genotypes selected for Zn-deficiency tolerance and high grain Zn. Journal of Experimental Botany 64(10):2739-2751. https://doi.org/10.1093/jxb/ert118
Soil Redox Chemistry
Wells, N.S., Clough, T.J., Johnson-Beebout, S.E., and Baisden, W.T. 2019. Effects of denitrification and transport on the isotopic composition of nitrate (d18O, d15N) in freshwater systems. Science of the Total Environment 651(2): 2228-2234. https://doi.org/10.1016/j.scitotenv.2018.10.065
Affholder, M.C., Weiss, D.J., Wissuwa, M., Johnson-Beebout, S.E., and Kirk, G.J.D. 2017. Soil CO2 venting as one of the mechanisms for tolerance of Zn deficiency by rice in flooded soils. Plant, Cell & Environment 40(12):3018-3030. https://doi.org/10.1111/pce.13069
Bunquin, M.A.B., S.Tandy, S. Johnson Beebout, and R. Schulin. 2017. Influence of soil properties on Zn solubility dynamics under different redox conditions in non calcareous soils. Pedosphere 27(1):96-105. https://doi.org/10.1016/S1002 0160(17)60299-6
Izquierdo, M., Impa, S.M., Johnson-Beebout, S.E., Weiss, D.J., Kirk, G.J.D. 2016. Measurement of isotopically-exchangeable Zn in Zn-deficient paddy soil. European Journal of Soil Science 67(1): 51-59. https://doi.org/10.1111/ejss.12303
Soil Chemistry Methods
Jacob, J.D.C., Rubianes, F.H., Johnson-Beebout, S.E., Buresh, R.J. 2014. Zinc fertilizer test kit for semi-quantitative verification of fertilizer quality. Journal of Plant Nutrition 37(8):1237-1254. https://doi.org/10.1080/01904167.2014.881868
Reviews
Slamet-Loedin, I.H., S.E.Johnson-Beebout, S.M. Impa and N. Tsakirpaloglou. 2015. Enriching rice with Zn and Fe while minimizing Cd risk. Frontiers in Plant Science 6:121. https://doi.org/10.3389/fpls.2015.00121
Impa, S.M., and S.E. Johnson-Beebout. 2012. Mitigating zinc deficiency and achieving high grain Zn in rice through integration of soil chemistry and plant physiology research. Plant and Soil 361:3-41. https://doi.org/10.1007/s11104-012-1315-3
Bijay-Singh, Shan YH, Johnson-Beebout SE, Yadvinder-Singh, Buresh RJ. 2008. Crop residue management for lowland rice-based cropping systems in Asia. Advances in Agronomy 98:117–199. https://doi.org/10.1016/s0065-2113(08)00203-4
Harmel, R.D., Kleinman, P., Eve, M., Ippolito, J.A., Beebout, S., Delgado, J., Vandenberg, B., and Buser, M. 2021. The Partnerships for Data Innovations (PDI): Facilitating data stewardship and catalyzing research engagement in the digital age. Agricultural and Environmental Letters 6:e20055. https://doi.org/10.1002/ael2.20055