Breadbasket
The breadbasket or the granary of a country is a region which, because of richness of soil and/or advantageous climate, produces an agricultural surplus which is often considered vital for the country as a whole. Rice bowl is a similar term used to refer to Southeast Asia, and California's Salinas Valley is often referred to as the world's salad bowl. Such regions may be the subject of fierce political disputes which may even escalate into full military conflicts.
Classical antiquity
Sicily and Africa were considered the breadbaskets of the Roman Republic. Later on, Egypt was considered the breadbasket of the Roman Empire. Crimea was the source of a huge quantity of grain supplied to Greek city-states, especially Athens.
Africa
Morocco
The Chaouia plain south of Casablanca has historically been the breadbasket of Morocco thanks to its fertile soil called Tirs and relatively abundant rainfall (avg. 400 mm/year).
South Africa
The Free State province is often considered the breadbasket of South Africa due to its wheat, sunflower and maize fields.