welcome to the inside of a biodome ( or a biotube ) - btw. that image comes from babylon 5. if we imagine suns to be sunsized, planets to be planetsized - we shouldn t have trouble imagining biodomes to be sufficient sized, too
there is little lore about biodome tech and how much food they produce. ( that is little lore except what players may have written down, which i d only call subjective )
in the stone age - one acre of land produced X/2 amounts of food.
in the middle ages - one acre of land produced X amount of food.
in our age the same acre poduces X times 10 amount of food.
in thousands of years the same acre may produce X times 10000 amount of food.