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A biological method of including mineralized human liquid and solid wastes into the mass exchange of bio-technical life support systems / S. A. Ushakova [et al.] // Advances in Space Research. - 2012. - Vol. 50, Is. 7. - P932-940, DOI 10.1016/j.asr.2012.05.023 . - ISSN 0273-1177
Кл.слова (ненормированные):
Bio-technical life support system -- Conveyor-grown uneven-aged communities of wheat and Salicornia -- Utilization of human wastes -- Age groups -- Biological methods -- Dry weight -- Expanded clay -- Harvest index -- Human waste -- Leafy vegetables -- Liquid wastes -- Mass exchange -- Mineral element -- Nutrient solution -- Plant communities -- Salicornia europaea -- Salt content -- Time interval -- Uneven-aged -- Water culture -- Wheat biomass -- Conveyors -- Incineration -- Irrigation -- Minerals -- Nutrients -- Plants (botany) -- Productivity -- Sodium chloride -- Waste incineration -- Waste utilization -- Liquids
Аннотация: The main obstacle to using mineralized human solid and liquid wastes as a source of mineral elements for plants cultivated in bio-technical life support systems (BLSS) is that they contain NaCl. The purpose of this study is to determine whether mineralized human wastes can be used to prepare the nutrient solution for long-duration conveyor cultivation of uneven-aged wheat and Salicornia europaea L. plant community. Human solid and liquid wastes were mineralized by the method of "wet incineration" developed by Yu. Kudenko. They served as a basis for preparing the solutions that were used for conveyor-type cultivation of wheat community represented by 5 age groups, planted with a time interval of 14 days. Wheat was cultivated hydroponically on expanded clay particles. To reduce salt content of the nutrient solution, every two weeks, after wheat was harvested, 12 L of solution was removed from the wheat irrigation tank and used for Salicornia europaea cultivation in water culture in a conveyor mode. The Salicornia community was represented by 2 age groups, planted with a time interval of 14 days. As some portion of the nutrient solution used for wheat cultivation was regularly removed, sodium concentration in the wheat irrigation solution did not exceed 400 mg/L, and mineral elements contained in the removed portion were used for Salicornia cultivation. The experiment lasted 4 months. The total wheat biomass productivity averaged 30.1 gВ·m -2В·day -1, and the harvest index amounted to 36.8%. The average productivity of Salicornia edible biomass on a dry weight basis was 39.3 gВ·m -2В·day -1, and its aboveground mass contained at least 20% of NaCl. Thus, the proposed technology of cultivation of wheat and halophyte plant community enables using mineralized human wastes as a basis for preparing nutrient solutions and including NaCl in the mass exchange of the BLSS; moreover, humans are supplied with additional amounts of leafy vegetables. В© 2012 COSPAR. Published by Elsevier Ltd. All rights reserved.

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Держатели документа:
Institute of Biophysics SB RAS, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Siberian State Technological University, 82, Mir Avenue, Krasnoyarsk 660049, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Ushakova, S.A.; Tikhomirov, A.A.; Tikhomirova, N.A.; Kudenko, Y.A.; Litovka, Y.A.; Anishchenko, O.V.

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Estimating CO2 gas exchange in mixed age vegetable plant communities grown on soil-like substrates for life support systems / V. V. Velichko, A. A. Tikhomirov, S. A. Ushakova // Life Sci. Space Res. - 2018. - Vol. 16. - P47-51, DOI 10.1016/j.lssr.2017.11.001 . - ISSN 2214-5524
Кл.слова (ненормированные):
Bioconversion of plant waste -- CO2 gas exchange -- Conveyor mode -- Plant cultivation -- Soil-like substrate -- carbon dioxide -- Article -- atmosphere -- beet -- carrot -- concentration (parameters) -- Cyperus esculentus -- gas exchange -- genetic variation -- microclimate -- nonhuman -- plant age -- plant community -- plant growth -- planting density -- priority journal -- reproducibility -- soil and soil related phenomena -- soil like substrate -- vegetable
Аннотация: If soil-like substrate (SLS) is to be used in human life support systems with a high degree of mass closure, the rate of its gas exchange as a compartment for mineralization of plant biomass should be understood. The purpose of this study was to compare variations in CO2 gas exchange of vegetable plant communities grown on the soil-like substrate using a number of plant age groups, which determined the so-called conveyor interval. Two experimental plant communities were grown as plant conveyors with different conveyor intervals. The first plant community consisted of conveyors with intervals of 7 days for carrot and beet and 14 days for chufa sedge. The conveyor intervals in the second plant community were 14 days for carrot and beet and 28 days for chufa sedge. This study showed that increasing the number of age groups in the conveyor and, thus, increasing the frequency of adding plant waste to the SLS, decreased the range of variations in CO2 concentration in the “plant–soil-like substrate” system. However, the resultant CO2 gas exchange was shifted towards CO2 release to the atmosphere of the plant community with short conveyor intervals. The duration of the conveyor interval did not significantly affect productivity and mineral composition of plants grown on the SLS. © 2017

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Держатели документа:
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Akademgorodok, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Velichko, V. V.; Tikhomirov, A. A.; Ushakova, S. A.

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