[Principle demonstration of nutrient delivery system in a space vegetable planting prototype facility].
Objective. To develop a nutrient delivery system for space vegetable planting prototype facility to be used in future space station, and to preliminarily testify its feasibility through ground-based demonstration experiments. Method. A nutrient delivery system in a space vegetable planting prototype facility was designed and fabricated, and ground based demonstration experiments of plant cultivation were conducted. Result. Nutrient could be steadily delivered to plant cultivation matrixes through capillary action, water content of planting matrixes could be controlled automatically and maintained constant, and the planted material lettuce showed basically normal morphology and color. Conclusion. The nutrient delivery system in a space vegetable planting prototype facility could basically meet the requirements for plant nutrient delivery under space microgravity environmental condition.
Guo
S S
SS
Institute of Space Medico-Engineering, Beijing, China.
Xu
B
B
Ai
W D
WD
Wang
K
K
Liu
X Y
XY
Wang
P X
PX
D002197:Capillary Action; D018504:Ecological Systems, Closed; D004867:Equipment Design; D005069:Evaluation Studies as Topic; D018527:Hydroponics / Q000295:instrumentation* / Q000379:methods; D018545:Lactuca / Q000254:growth & development* / Q000502:physiology; D008021:Life Support Systems / Q000295:instrumentation*; D013026:Space Flight / Q000295:instrumentation*; D014881:Water Supply; D014893:Weightlessness