What is the world's most produced cereal crop?

The world's most produced cereal crop is corn, also known as maize. Corn is one of the most important staple crops in the world, with an annual production of over 1 billion tons. It is a versatile crop that can be used for a variety of purposes such as food, animal feed, and fuel.

Other important cereal crops include wheat, rice, and barley. Wheat is the second most produced cereal crop, with an annual production of over 700 million tons. It is the primary ingredient in many baked goods such as bread, pasta, and pastries. Rice is the third most produced cereal crop, with an annual production of over 500 million tons. It is a staple food for over half of the world's population.

Barley is the fourth most produced cereal crop, with an annual production of over 150 million tons. It is primarily used as animal feed and in the production of beer and whiskey. Other cereal crops include sorghum, oats, rye, and millet.

Cereal crops play a crucial role in feeding the world's population, and their production and consumption have significant economic, social, and environmental impacts.