NDLI: Growth of potatoes for celss

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Growth of potatoes for celss

Content Provider	NASA Technical Reports Server (NTRS)
Author	Cao, W. Tibbitts, T. W. Wheeler, R. M.
Copyright Year	1994
Description	This report summarizes research on the utilization of white potatoes (Solanum tuberosum L.) for space life support systems at the University of Wisconsin-Madison over the period of 1984 to 1993. At full maturity the tuber productivity was 37.5 gm(exp -2) d(exp -1), equating to a growing area requirement for one human (2800 kcal d(exp -1)) of 10.1 m(exp -2). A recirculating nutrient system using slanted trays produced best potato growth and tuber yields when a 2-3 cm layer of gravel or arcillite media was utilized. Potato production was close to maximum under lighting levels of 400 micromol m(exp -2) s(exp -1) of photosynthetic photo flux (PPF) for 24 hours or 800 micromol m(exp -2) s(exp -1) for 12 hours, alternating diurnal temperatures of 22 C and 14 C, relative humidity of 85 percent, and a carbon dioxide level of 1000 micromol m(exp -1). The range of effective concentrations of each separate nutrient is reported. The extensive studies with potatoes in this project have demonstrated that this crop has high productivity of nutritous tubers with a high harvest index in controlled environments, and can fulfill a significant portion of the energy and protein requirements for humans in space.
File Size	7451265
Page Count	200
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19950005536
Archival Resource Key	ark:/13960/t5r838h1d
Language	English
Publisher Date	1994-08-01
Access Restriction	Open
Subject Keyword	Man/system Technology And Life Support Crop Growth Food Production in Space Potatoes Closed Ecological Systems Carbon Dioxide Concentration Hydroponics Humidity Temperature Control Illuminating Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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