Iowa Heritage Digital Collections
State Library of Iowa

Browse Items (1825 total)

Soil loss per acre, per year.
Soil Judging Contest Participants Treated Field - Alfalfa Brome Field.
Soil Judging Contest Award - 2012.
Soil Judging Contest Award - 2010.
Soil Judging Contest Award - 2009.
Soil Field Day on the Sietsema farm.
Soil erosion
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