Cuban Agriculture

Some, most recently Tom Philpott, have praised the Cuban agriculture system, its urban farming and organic agriculture. One thing to remember is Cuba is not self-sufficient, as this article indicates. It doesn't say what food is imported, but this article says:

Cuba has been importing food like rice and chicken from the United States since 2000, when cash-only food sales were permitted as a exception to the US trade embargo, turning Cuba's ideological foe into its top foreign supplier.

Cuba's food import agency, Alimport, this week signed new contracts worth $60 million with a delegation from the US state of Nebraska, to import mainly wheat, pork and soy beans.

I don't have a comprehensive picture of Cuban agriculture/food supply.