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
Growing enough grain to feed yourself takes 400 - 1000 m² depending on soil fertility.
So you can't do that in your backyard. It's also dramatically more efficient to harvest grains with big machinery, so it's wise to put it together with your neighbours and form something like a cooperative.