Evaluation of double recirculating aquaponic systems for intensive plant production - Suhl, Johanna
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Double recirculating aquaponic systems (DRAPS) were developed as sustainable food production system and as alternative to conventional aquaculture and hydroponics. DRAPS allow the production of fish and plants under specific optimal conditions. One major subject of the present study was the comparison of vegetable production in DRAPS with conventional hydroponic production. For investigations Nile tilapia and African catfish were combined with tomatoes or lettuce. Furthermore, the connection point between fish and plants was studied in more detail to identify possible weaknesses of this point.…mehr

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Produktbeschreibung
Double recirculating aquaponic systems (DRAPS) were developed as sustainable food production system and as alternative to conventional aquaculture and hydroponics. DRAPS allow the production of fish and plants under specific optimal conditions. One major subject of the present study was the comparison of vegetable production in DRAPS with conventional hydroponic production. For investigations Nile tilapia and African catfish were combined with tomatoes or lettuce. Furthermore, the connection point between fish and plants was studied in more detail to identify possible weaknesses of this point. Additional, the fertiliser and fresh water saving potential and the environmental relive by replacing nitrogen fertiliser by fish waste water was investigated. The results of this study demonstrate clearly the competiveness of DRAPS with conventional hydroponic systems in terms of plant quantity and quality aspects as well as sustainability issues. DRAPS is a highly promising system which must be investigated and improved further. Finally, it will contribute significantly to sustainable intensification and consequently to food safety.
Autorenporträt
Judith Henze holds a BA in International Development and Global Politics from Nottingham Trent University and a MSc in Environment and Sustainable Development from UCL, London. Her research focus includes aquaponics, urban agriculture, vertical farming and ICTs for agriculture. She is currently exploring how AI technologies can be employed to support farmers to monitor their soil, control pests, and yield healthier crops as well as manage entire food supply chains and interconnect complex food systems. During her research, she founded M-Samaki, an sms and mobile phone app-based ICT solution to support fish farmer in Kenya. She is the editor of the HORTINLEA Handbook ¿The Production and Marketing of African Indigenous Leafy Vegetables¿ (2019).