空间蔬菜栽培装置中营养液输送系统的实验研究

Principle Demonstration of Nutrient Delivery System in a Space Vegetable Planting Prototype Facility

目的为未来的空间站研制一套在空间蔬菜栽培装置中应用的营养液输送系统 ,并通过地面实验初步证明其可行性。方法参考国外资料并结合我国实际 ,进行空间蔬菜栽培装置样机中营养液输送系统的方案论证、方案设计、图纸设计和加工调试等 ,随后进行植物栽培地面验证试验。结果营养液能够以毛细作用方式源源不断地输送到植物栽培基质 ,基质水分含量能够自动控制并按设定值保持恒定 ,所用生物材料生菜的生长形态和色泽基本正常。

Objective To develop a nutrient delivery system for a 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.