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Evaluation of an Ebb and Flow Nutrient Delivery Technique Applicable to Growing Plants in Microgravity
Technical Paper
2002-01-2383
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A promising approach for the watering and aeration of substrates in space-based plant root modules is to use a periodic watering/evacuation through a porous membrane or an Ebb/Flow Nutrient Delivery System (EFNDS). Wheat (Triticum aestivum cv Yecora rojo) grown utilizing the EFNDS approach achieved productivities equivalent to controls employing a traditional direct flow approach. When the EFNDS approach is used in conjunction with a fibrous ion-exchange resin substrate (FIERS), the ebb cycle effectively vented 50-55% of the FIERS pores by volume (resupplying oxygen), and freed the substrate of unwanted root exudates. Several advantages of the EFNDS approach can be crucial during plant cultivation in microgravity.
Authors
Citation
Berkovich, Y., Tynes, G., Norikane, J., and Levine, H., "Evaluation of an Ebb and Flow Nutrient Delivery Technique Applicable to Growing Plants in Microgravity," SAE Technical Paper 2002-01-2383, 2002, https://doi.org/10.4271/2002-01-2383.Also In
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