The Iowa State University spring survey of subsoil moisture in northwest Iowa indicates below normal amounts of subsoil moisture in most areas. The exception was near Rossie where the subsoil moisture was 1.3 inches above normal. Subsoil moisture levels are surveyed in pre-determined areas each spring and fall.
Iowa State University
Kassel, Paul C., "Subsoil Moisture Levels are Still a Concern for 2012 Crops" (2012). Integrated Crop Management News. 182.
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