Given that it's about farming, the natural choice is to go for an outdoor setup. Shana offered her opinion that perhaps they could use the super large plot for livestock and poultry and the remaining two small plots for hydroponics. Shana wasn't suggesting this because she was fond of eating meat; she thought that as it was becoming increasingly difficult to obtain scraps of fabric, if they could breed sheep, they could ensure a supply of clothing materials for the base members.
With this setup, the small plots would become extremely tight, and although the yield from hydroponics wouldn't compare to traditional farming, the advantage was that hydroponics would still produce crops during winter.