Decision-tree-based ion-specific dosing algorithm for enhancing closed hydroponic efficiency and reducing carbon emissions.

ABSTRACT: The maintenance of ion balance in closed hydroponic solutions is essential to improve the crop quality and recycling efficiency of nutrient solutions. However, the absence of robust ion sensors for key ions such as P and Mg and the coupling of ions in fertilizer salts render it difficult to effectively manage ion-specific nutrient solutions. Although ion-specific dosing algorithms have been established, their effectiveness has been inadequately explored. In this study, a decision-tree-based dosing algorithm was developed to calculate the optimal volumes of individual nutrient stock solutions to be supplied for five major nutrient ions, i.e., NO₃, K, Ca, P, and Mg, based on the concentrations of NO₃, K, and Ca and remaining volume of the recycled nutrient solution. In

SUBMITTER: Cho WJ 

PROVIDER: S-EPMC10757981 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature