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
Well yeah rice, xD
apart from that i'm not aware of anything.
Also beware, that grains need direct solar irradiation (they need to collect lots of energy, much more than vegetables), so stacking them on top of each other is not viable.