在未来的宇宙考察中,宇航员可能要长时间留在轨道站或月球实验室中工作。正在酝酿中的火星之行,甚至要求宇航员在飞船里呆上3年。这样,即便是令人乏味的冷藏食品也将供不应求。宇航员们期待着植物学家为他们设计出能利用废物生产新鲜食品的“太空作物”。为此,美国的一些植物学家正协助航空航天部加速“太空作物”的研究。植物学家们是从一些基本问题入手的,例如光照问题,作物根的体积、培养装置以及植物对培养条件的 In future cosmic surveys, astronauts may have to stay at orbital stations or moon laboratories for long periods of time. Mars is on its way to brewing. It even requires astronauts to stay in the spacecraft for three years. In this way, even tedious refrigerated foods will be in short supply. Astronauts look forward to botanists designing “space crops” that can use waste to produce fresh food. To this end, some botanists in the United States are assisting the Aerospace Department in accelerating research on “space crops.” Botanists start with basic issues such as lighting, crop root volume, culture equipment, and plant conditions