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A Data Base of Crop Nutrient Use, Water Use, and Carbon Dioxide Exchange in a 20 Square Meter Growth ChamberA 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 sq m 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 sq m 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 he 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
19970020087
Acquisition Source
Kennedy Space Center
Document Type
Reprint (Version printed in journal)
Authors
Wheeler, Raymond M.
(NASA Kennedy Space Center Cocoa Beach, FL United States)
Berry, Wade L.
(California Univ. Los Angeles, CA United States)
Mackowiak, Cheryl
(Bionetics Corp. Cocoa Beach, FL United States)
Corey, Kenneth A.
(Massachusetts Univ. Amherst, MA United States)
Sager, John C.
(NASA Kennedy Space Center Cocoa Beach, FL United States)
Heeb, Margaret M.
(California Univ. Los Angeles, CA United States)
Knott, William M.
(NASA Kennedy Space Center Cocoa Beach, FL United States)
Date Acquired
August 17, 2013
Publication Date
January 1, 1993
Publication Information
Publication: Journal of Plant Nutrition
Publisher: Marcel Dekker, Inc.
Volume: 16
Issue: 10
Subject Category
Life Sciences (General)
Report/Patent Number
NAS 1.26:204466
NASA-CR-204466
Accession Number
97N71934
Distribution Limits
Public
Copyright
Public Use Permitted.
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