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A data base of crop nutrient use, water use, and carbon dioxide exchange in a 2O square meter growth chamber: I. Wheat as a case studyA data set is given describing the daily nutrient uptake, gas exchange, environmental conditions, and carbon (C), and nutrient partitioning at harvest for the entire canopy and root system of a wheat crop (Triticum aestivum, cv. Yecora Rojo). The data were obtained from a 20 m2 stand of wheat plants grown from planting to maturity in a closed, controlled environment, and include daily nutrient uptake [macronutrients, nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), and sulfur (S); and micronutrients, iron (Fe), boron (B), manganese (Mn), zinc (Zn), copper (Cu), and molybdenum (Mo)], canopy carbon dioxide (CO2) exchange rates, and transpiration. Environmental factors such as relative humidity, air temperature, nutrient solution temperature, pH and electrical conductivity, and photoperiod were controlled in the chamber to specific set points. A detailed description of biomass yield for each of the 64 plant growth trays comprising the 20 m2 of growth area is also provided, and includes dry weights of grain, straw, chaff, and roots, along with the concentration of nutrients in different plant tissues and the percent carbohydrate, fat, and protein. To our knowledge, this information represents one of the most extensive data sets available for a canopy of wheat grown from seed to maturity under controlled environmental and nutritional conditions, and thus may provide useful information for model development and validation. A methods section is included to qualify any assumptions that might be required for the use of the data in plant growth models, along with a daily event calendar indicating when adjustments in set points and occasional equipment or sensor failures occurred.
Document ID
20040090219
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Wheeler, R. M.
(NASA Kennedy Space Center Cocoa Beach FL United States)
Berry, W. L.
Mackowiak, C.
Corey, K. A.
Sager, J. C.
Heeb, M. M.
Knott, W. M.
Date Acquired
August 21, 2013
Publication Date
January 1, 1993
Publication Information
Publication: Journal of plant nutrition
Volume: 16
Issue: 10
ISSN: 0190-4167
Subject Category
Man/System Technology And Life Support
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Number 61-20
NASA Program CELSS
NASA Center KSC
NASA Discipline Life Support Systems

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