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Adaptation of SUBSTOR for controlled-environment potato production with elevated carbon dioxideThe SUBSTOR crop growth model was adapted for controlled-environment hydroponic production of potato (Solanum tuberosum L. cv. Norland) under elevated atmospheric carbon dioxide concentration. Adaptations included adjustment of input files to account for cultural differences between the field and controlled environments, calibration of genetic coefficients, and adjustment of crop parameters including radiation use efficiency. Source code modifications were also performed to account for the absorption of light reflected from the surface below the crop canopy, an increased leaf senescence rate, a carbon (mass) balance to the model, and to modify the response of crop growth rate to elevated atmospheric carbon dioxide concentration. Adaptations were primarily based on growth and phenological data obtained from growth chamber experiments at Rutgers University (New Brunswick, N.J.) and from the modeling literature. Modified-SUBSTOR predictions were compared with data from Kennedy Space Center's Biomass Production Chamber for verification. Results show that, with further development, modified-SUBSTOR will be a useful tool for analysis and optimization of potato growth in controlled environments.
Document ID
20040087500
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Fleisher, D. H.
(Rutgers University New Brunswick, NJ 08901, United States)
Cavazzoni, J.
Giacomelli, G. A.
Ting, K. C.
Janes, H. W.
Date Acquired
August 21, 2013
Publication Date
March 1, 2003
Publication Information
Publication: Transactions of the ASAE. American Society of Agricultural Engineers
Volume: 46
Issue: 2
ISSN: 0001-2351
Subject Category
Man/System Technology And Life Support
Funding Number(s)
CONTRACT_GRANT: NGT5-50229
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Life Support Systems
Non-NASA Center

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