2015 Minnesota Aquaponics Conference Posters
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Aquaponics in Minnesota: Recent Findings and Best Practices in Food Safety
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Item A cost-benefit analysis of heating fish tanks through winter in a midwestern greenhouse aquaponics system(2015-05) Scherven, Marissa; Sather, Mark; Wilson, MarkItem Identifying aquaponics information gaps: An examination of educational resources available to home hobbyists in Minneapolis garden center sites(2015-05) Campbell, Natalie; Miller, Lindsey; Reynolds, AbbyAquaponics home hobbyists may rely on garden centers as an important source of materials and information. Our study evaluated garden center staff knowledge about aquaponics in order to help the staff close their own information and training gaps, and strengthen their exchanges with home hobbyists. Over time this will strengthen the aquaponics network of garden centers and home hobbyists and enhance the diffusion of aquaponics systems.Item Food safety hazards associated with smooth textured leafy greens produced in aquaponic, hydroponic, and soil-based systems with and without roots in retail(2015-05) Barnhart, Caitlin; Hayes, Laura; Ringle, DanielleItem Comparing multiple forms of light on different cultivars of Swiss chard in the ebb and flow bench aquatic system(2015-05) Gebhardt, Benjamin; White, Michael; Montouri, Christina; Vonzenz, KarlItem The effect of red wiggler worms (Eisenia fetida) on aquaponics nutrient solution properties and system stability across solution temperature(2015-05) Haberman, Andrew; Peterson, Mitchal; Ruby, AllisonThis project begins to quantify the potential benefit of red wiggler worms as a low cost input for aquaponics producers to increase nutrient concentration available to plants and thus increase subsequent yield. Through regular testing and analysis of the system's nutrient solution, it was found that worms had no immediate, consistent and demonstrable benefit as far nutrient concentration, system stability, or plant yield, and that fish species had more effect on system solution. This study does not rule out other benefits of worms in the system, in particular to the reduction of waste build up. Inconclusive results suggest that this study should continue over a longer duration.Item Effects of substrates on plant growth in a raft aquaponic system(2015-05) Sorensen, Marie; Roth-Krosnoski, Thomasina; Robinson, LauraAs the popularity of aquaponics increases as a method of sustainable food production, best practices continue to be refined. Additionally, rules regarding organic certification of aquaponics facilities are vague or nonexistent. Rockwool, a substance commonly used in production is not currently allowed by the Organic Materials Review Institute. The purpose of our research was to determine if an organic substrate such as coconut coir, lava rock or expanded clay aggregate (ECA) could produce yields comparable or exceeding that of rockwool. Materials for comparison were chosen based on their availability or affordability.