Enhancing plant growth in aquaponic systems via potassium manipulation in fish feeds: A pilot study of tailored feeds bridging nutritional gaps in aquaponics

Stefano Francisco Pereira Duarte and Brunno Silva Cerozi

Agricultural Systems, 2024, vol. 218, issue C

Abstract: Aquaponic systems often face challenges with limited potassium availability in comparison to nitrogen and phosphorus required for proper plant growth. The formulation of commercially available fish feeds, expectedly, prioritize meeting fish nutritional requirements, but inadvertently neglect the critical nutrient needs of plants when used in aquaponic systems, resulting in imbalances between nitrogen, phosphorus, and potassium. In response to this issue, aquaponic practitioners have long sought the development of specific fish feeds that can provide a balanced ratio of nutrients required for proper plant growth.

Keywords: Potassium; Aquaponics; Tailored feed; Plant growth; Nutrient imbalance (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:agisys:v:218:y:2024:i:c:s0308521x24001513

DOI: 10.1016/j.agsy.2024.104001

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