Iowa State University Extension and Outreach

East-Central and Southeast Iowa Crop Information

Welcome!


  • Soil and Land Use

  • ISU Soil Fertility

  • Nitrogen Rate Calculator

  • Phosphorus, Potasium, and Lime Recommendations - PM 1688

  • Testing for Residual Nitrogen

     

    If you have any questions, please feel free to contact the Iowa State University Extension Office.
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    Last Update: July 27, 2018
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