Edit:
This is not intended as "how to grow all your food you ever need at home".
It merely provides the vegetables.
You still have to get your grains (and therefore the majority of your calories) from somewhere else.
geteilt von: https://lemmy.ca/post/22193783
Im only referring to raw human survivability.
Whether this amount of growing space could produce enough calories per year to keep 1 human at "barely alive or better" caloric input.
In my estimate, you would need to devote most of the land to potatoes, and rely on eggs, rabbit meat and likely some wild foraging for the rest. It probably is feasible if you do the above.