What are the three most important cereal crops?

Corn, wheat, barley. Barley for the beer that keeps drinking water from going rancid.<><><>While I like the beer answer, rice is a major part of the diet of a good part of the...

wheat

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wheatIn 2009, Winconsin's most important crop was corn for grain use, according to the USDA. It accounted for over half of the state's $3 billion agricultural production, in terms of value of the...