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Production and Quality Analysis of Perennial Leafy Vegetables in CELSS
Pages: 42-47
Year: Issue:  1
Journal: Space Medicine & Medical Engineering

Keyword:  controlled ecological life support systemperennial leafy vegetablesSPACEnterproduction rate;
Abstract: Objective To study the growth and production of perennial leafy vegetables in Controlled Ecological Life Support System(CELSS).Methods Four kinds of perennial leafy vegetables were introduced in the SPACEnter,the 4-subject 180-day CELSS integration experiment.The growth,the production rate and the nutrient components of 4 perennial leafy vegetables(Gynura divaricata、celery、Chinese chives,and water spinach)were compared with those of the lettuce to analyze their application prospects in CELSS.Results Four perennial leafy vegetables grew well in the integration test.At the end of the experiment,the production rates of edible biomass of Gynura divaricata and water spinach were higher than that of lettuce.The harvest interval of perennial leafy vegetables was shorter,and the nutrient component was equivalent to that of the lettuce.Conclusion Perennial leafy vegetables have the characteristics of simple management,short harvest interval and stable yield,which can play an important role in the construction of life support system for long-term deep space exploration or planetary base missions.
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