1. Post Doctoral Associates, Soil and Fertilizer Division, National Institute of Agricultural Sciences, RDA, 166 Nongsaengmyeong-ro, Wanju, 55365, Republic of Korea
2. Researcher, Industry-Academic Cooperation Foundation, Sangji University, 83 Sangjidae-gil, Wonju 26339, Republic of Korea
3. Professor, Department of Smart-Farm, Sangji University, 83 Sangjidae-gil, Wonju 26339, Republic of Korea