Tennessee's major industries include agriculture, manufacturing, and tourism. Poultry, soybeans, and cattle are the state's primary agricultural products, and major manufacturing exports include chemicals, transportation equipment, and electrical equipment. The Great Smoky Mountains National Park, the nation's most visited national park, is headquartered in the eastern part of the state, and a section of the Appalachian Trail roughly follows the Tennessee-North Carolina border. Other major tourist attractions include the Tennessee Aquarium in Chattanooga; Dollywood in Pigeon Forge; the Parthenon, the Country Music Hall of Fame and Museum, and Ryman Auditorium in Nashville; the Jack Daniel's Distillery in Lynchburg; and Elvis Presley's Graceland residence and tomb, the Memphis Zoo, and the National Civil Rights Museum in Memphis.

What is Tennessee's primary non-meat agricultural product?