Cereal crops included wheat, barley, oats and rye. Crops included wheat, rye, barley and oats. Cereal food includes wheat, oats, maize and occasionally barley. Crops grown may include corn, alfalfa, timothy, wheat, oats, sorghum and clover. Co. American Oats and Barley Oatmeal Corporation. Corn, wheat, hay, soybeans, and oats are all typical crops. Maize, barley, oats and rice are also grown. Agricultural crops such as corn, soybeans, oats, wheat, and fruit are also eaten. Crops including oats, barley, corn and various vegetables were grown. They are known as wild oats or oat-grasses. Potatoes, flax, hemp, sugarbeets, rye, oats, and wheat are the chief agricultural products. Regional staples include the plants rye, soybeans, barley, oats, and teff. Muesli is a breakfast cereal based on uncooked rolled oats, fruit, and nuts. Important crops include corn, beans, potatoes and oats. Barley, oats and rye were eaten by the poor.