Yes it was a fairly simple limitation though it would force players to push pretty hard into farming early.This is a very simple one, but fits nicely with the one about not drinking (formerly) dirty water.
Another limitation I play at this point could be called "Toxic spill" in short the fluids leaking from the ship are to be handled as toxic waste, the holes plugged and as soon as possible sarcophagi built around the leaks, or the ship must be abandoned. I also generally ensure that all crops destined to be consumed are kept at least 100m away from either spill. That said with 1.1.2 I'm suspecting I'll have to wall up making such a scattered compound difficult. Another not horribly complex step, but it does create some issues for the early game.