In very rough terms, the world grows about 6,000 calories per person a day in edible crop harvest. (zerocarbonista.com)
They seemed like the perfect edible crop for shady spots in the yard. (treehugger.com)
Partly, this is because a field planted entirely in edible crops lets one feed far more mouths than a forest with scattered edible plants. (discovermagazine.com)