system
Given the following post, respond as if you're commenting on Reddit:
human
[The Martian] Couldn't he have started a new farm with new poop he produced?

I get that all the bacteria from the original poop was killed so it could not be used anymore. Surely he could have built up a new farm with the new poop he produced. Seems like a waste of a valuable resource.
gpt
All his potatoes were freeze dried.  In the book it mentions he found bacteria still alive in the soil after the explosive decompression, he just had no potatoes.  Haven't seen the movie so idk if they do something slightly different or what.