Integration of Sequential Cultivation of Main Crops and Gas and Water Processing Subsystems Using Closed Ecology Experiment Facilities

Crop productivities and radiation use efficiencies for bioregenerative life support

“…Oxygen production was estimated from CO 2 uptake and assuming a 1:1 molar ratio CO 2 removed to O 2 produced, i.e., an assimilation quotient of 1.0. This is reasonably accurate for carbohydrate producing crops, but may have underestimated the O 2 produced by soybeans, which have a higher fat content (Wheeler, 1996;Tako et al, 2001). Water production rates from evapotranspiration were measured from condensate collected from the cooling coils of the heat-exchange system, and corroborated by summing the daily inputs of water, stock solution, and acid for pH control in the hydroponic systems .…”

Agriculture for Space: People and Places Paving the Way

“…CEEF was part of the Institute for Environmental Sciences (IES) developed to track radio isotopes through closed ecosystems. When not in use for their primary studies, the facilities could be utilized for studies of controlled environment agriculture and human life support (Nitta et al, 2000;Tako et al, 2001Tako et al, , 2008Tako, 2010). CEEF researchers designed complete diets from crops grown in 150 m 2 of the plant cultivation modules (Masuda et al, 2005;Tako et al, 2010.).…”

Wheeler Raymond Agriculture for Space: People and Countries Paving the Way

“…When not in use for their primary studies, the facilities could be utilized for (Tako et al, 2008(Tako et al, , 2010. Photo courtesy of Yasuhiro Tako, CEEF. studies of controlled environment agriculture and human life support Tako et al, 2001Tako et al, , 2008Tako et al, , 2010. CEEF researchers designed complete diets from crops grown in 150 m 2 of the plant cultivation modules Tako et al, 2010.…”