Contoured watershed on L.C. Shivvers' farm in Knoxville, Iowa. Farm maintained by Leo Goad and Howard Shannon. This 50 - acre cornfield received 3 - inch rains in 8 days. No washing. Contouring and grassed waterway shown in the foreground of the…
This photo shows contour field divisions established on a set of terraces. Slopes are 12 ti 17 percent and the terraces are broad based level. Southeast Wildwood Park is in the background. Contour farming saves water and reduces erosion by 50 per…
