Historically, field crops were more varied than in contemporary Pennsylvania agriculture, and fields were generally smaller. Corn, wheat, oats, barley, rye, hay, potatoes, cannery crops, and buckwheat were historically common. Today most Pennsylvania fields are planted with corn, hay and soybeans.

Image of a crop field in Hopewell Township Washington County
Crop field, Washington County, 2008.
These fields have changed little in organization since the early 20th century.