pH Dynamics in Aquaponic Systems: Implications for Plant and Fish Crop Productivity and Yield
نویسندگان
چکیده
The pH range of 7.0 to 7.2 is recommended ensure reasonable nitrification rates in aquaponics; however, this conducive neither nitrification, a critical process that occurs at 8.0, nor plant growth. To determine the effects an aquaponic system, Swiss chard (Beta vulgaris L.), kale (Brassica oleracea mustard green juncea cilantro (Coriandrum sativum lettuce (Lactuca sativa and arugula (Eruca vesicaria L.) were cultured with tilapia (Oreochromis niloticus) 5-year-old coupled systems three levels, 6.0, 6.5, 7.0, comparison hydroponics. Morphological physiological growth parameters vegetable fish crops measured regularly, ammonia-oxidizing bacteria (AOB) system analyzed by qPCR end production. This study found feed conversion ratio, biomass, copy number AOB not affected different pH, but similar hydroponic systems, lower increased fresh dry mass nutrient levels all species tested. suggests has significant impact on performance yield both that, hydroponics, 6 desirable for improve crop without compromising activity yield.
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ژورنال
عنوان ژورنال: Sustainability
سال: 2023
ISSN: ['2071-1050']
DOI: https://doi.org/10.3390/su15097137