Evaluation of Alternative Water Input Modes for Space-Based Plant Culture Applications 2002-01-2381
Wheat seeds were automatically imbibed and germinated within a Porous Tube Insert Module (PTIM) apparatus developed to support both porous tube and substrate-based nutrient delivery systems (PTNDS, SNDS) in space. The PTIM was operated under both; (1) a programmable fixed feed mode, and (2) a moisture sensor feedback control mode. For the former, increased levels of water use efficiency were evident within the PTNDS component of the study. For the latter, moisture sensors within the SNDS were evaluated at setpoints of 65-85% relative water content. Data demonstrating the ability of this approach to control moisture levels and the vertical moisture distribution patterns obtained over an 18 d grow-out interval are presented.
Citation: Levine, H., Tynes, G., Norikane, J., and Burtness, K., "Evaluation of Alternative Water Input Modes for Space-Based Plant Culture Applications," SAE Technical Paper 2002-01-2381, 2002, https://doi.org/10.4271/2002-01-2381. Download Citation
Author(s):
Howard G. Levine, Georgiana K. Tynes, Joey H. Norikane, Kevin Burtness
Affiliated:
Dynamac Corp., Life Sciences Service Contract, Kennedy Space Center, Bionetics Corp., Life Sciences Service Contract, Kennedy Space Center
Pages: 11
Event:
International Conference On Environmental Systems
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Water
Sensors and actuators
Logistics
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »
