It is not even clear whether the maize grown in these two areas is the same species, or different but closely related species. We do know that the species of beans differed, and that squash and sweet potatoes were major components of early agrarian diets. In this respect, the origins of agriculture in the Americas seems to differ from origins in other areas. Population and food resources are kept in balance either through conscious regulation, or by war, disease, famine. Nearly all of the world's arable land is under cultivation, including a large portion of marginal land.
Desertification is a growing problem associated with overuse of poor lands.
Give an example of an Oriental recipe that includes its staple grain and legume. Give an example of an African recipe that includes its staple grain and legume. Give an example of a Mideastern recipe that includes its staple grain and legume. Give an example of an American recipe that includes its staple grain and legume.