Carbon Gain, Water Use and Nutrient Uptake Dynamics of Beet (Beta vulgaris) Grown in Controlled Environments Controlled Environment Systems Research Facility, Department of Environmental Biology, University of Guelph

Format:

Conference/Event

Author/Creator:

Waters, Geoffrey, author.

Conference Name:

International Conference On Environmental Systems (2004-07-19 : Colorado Springs, Colorado, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2004

Summary:

Due to its large proportion of edible biomass, beet (Beta vulgaris) has high potential as a candidate crop for bioregenerative life support systems. This paper summarizes data collected for beet under batch and staged stand culture in closed environment chambers. Full stand trials were conducted under the following conditions: 1000 μL L1 atmospheric carbon dioxide concentration, light intensities ranging from 400600 μmol m2 s1 PAR with a 14 hour photoperiod, 73% ± 5% relative humidity, a 26/20 °C day/night temperature regime and a fixed planting density of 17.6 plants m2. For batch planted stands, total edible yield was determined to be 28.3 g dry weight basis (dwb) with a 95% Confidence Interval (CI) of [24.7, 31.8] g plant1 with a harvest index of 94%. Under similar conditions, yield for staged beet stands was 31.4 g dwb with a 95% CI of [24.54, 38.31] g plant1. Water use efficiency under these same conditions was found to be 0.003 mol C mol1 H2O. Relative nitrate, ammonium, phosphate and potassium uptake rate averaged 0.11. Data indicate that a square meter of beet in production would supply roughly 2% of the daily air revitalization requirement of a single crew member

Notes:

Vendor supplied data

Publisher Number:

2004-01-2435

Access Restriction:

Restricted for use by site license