2018 Farm Progress Show kicks off in Iowa, U.S.

A farm bin is seen at the Farm Progress Show in Boone, Iowa, the United States, Aug. 28, 2018. As the largest outdoor farm event of the United States, 2018 Farm Progress Show kicked off on Tuesday with nearly 600 exhibitors showcasing new farm machinery, seed and crop protection products during the three-day event. [Photo: Xinhua]