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Porous tube plant nutrient delivery system development: A device for nutrient delivery in microgravityThe Porous Tube Plant Nutrient Delivery Systems or PTPNDS (U.S. Patent #4,926,585) has been under development for the past six years with the goal of providing a means for culturing plants in microgravity, specifically providing water and nutrients to the roots. Direct applications of the PTPNDS include plant space biology investigations on the Space Shuttle and plant research for life support in the Space Station Freedom. In the past, we investigated various configurations, the suitability of different porous materials, and the effects of pressure and pore size on plant growth. Current work is focused on characterizing the physical operation of the system, examining the effects of solution aeration, and developing prototype configurations for the Plant Growth Unit (PGU), the flight system for the Shuttle mid-deck. Future developments will involve testing on KC-135 parabolic flights, the design of flight hardware and testing aboard the Space Shuttle.
Document ID
19950062166
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Dreschel, T. W.
(The Bionetics Corporation Florida, US, United States)
Brown, C. S.
(The Bionetics Corporation Florida, US, United States)
Piastuch, W. C.
(The Bionetics Corporation Florida, US, United States)
Hinkle, C. R.
(The Bionetics Corporation Florida, US, United States)
Knott, W. M.
(NASA Florida US, United States)
Date Acquired
August 16, 2013
Publication Date
November 1, 1994
Publication Information
Publication: Life sciences and space research 25 (3): Natural and artificial ecosystems; Meeting F4 of the COSPAR Plenary Meeting, 29th, Washington, DC, Aug. 28-Sep. 5, 1992 . A95-93759
Volume: 14
Issue: 11
ISSN: 0273-1177
Subject Category
Life Sciences (General)
Accession Number
95A93765
Distribution Limits
Public
Copyright
Other

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