AUTHOR=Ahn Tae In , Park Jai-Eok , Jung Je Hyeong , Kim Sang Min , Yoo Gyhye , Kim Hyoung Seok , Lee Ju Young TITLE=Nutrient Dosing Framework for an Emission-Free Urban Hydroponic Production JOURNAL=Frontiers in Plant Science VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2021.768717 DOI=10.3389/fpls.2021.768717 ISSN=1664-462X ABSTRACT=
The urban hydroponic production system is accelerating industrialization in step with the potentials for reducing environmental impact. In contrast, establishing sustainable fertilizer dosing techniques still lags behind the pace of expansion of the system. The reproducibility of root-zone nutrient dynamics in the system is poorly understood, and managing nutrients has so far primarily relied on periodic discharge or dumping of highly concentrated nutrient solutions. Here, we assayed root-zone nutrient concentration changes using three possible nutrient dosing types. Three