This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Shelby County Iowa.... Detailed description These pictures show how people in this locality preser . . . NARA . These pictures show how people in this locality preserve the fertility of their land This image shows manure spreader being loaded and operated This last is not usual or necessary practice and no farmer has enough barnyard