Iowa Heritage Digital Collections
State Library of Iowa

Browse Items (224 total)

Sloping land effects.
Soil loss per acre, per year.
Tillage technique comparison.
Conservation tillage progress chart in Iowa.
Contoured land with government building imagery.
Rule of thumb for chisel plowing.
Rule of thumb for depth of till.
Output Formats

atom, dcmes-xml, json, omeka-xml, rss2