Potato Farming on Mars? Not So Much
Tyson apparently really liked the film ‘The Martian,’ but he questioned whether or not Matt Damon could actually grow enough potatoes to live months by himself on Mars. Tyson pretty much said that it might be possible. Enough water and grow lights do indeed make the theory plausible, but essential soil nutrients that potatoes need to grow would be majorly lacking on Mars. And he said even human fertilizer wouldn’t help.
Source: Reddit