Song, J., Xu, L., He, D., Tuskagoshi, S., Kozai, T., & Shinohara, Y. (2019). Estimating EC and ionic EC contribution percentage of nutrient solution based on ionic activity. International Journal of Agricultural and Biological Engineering, 12(2), 42–48. Retrieved from https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/4399