Lesson 34. Agricultural Phosphorus Management Protecting Production and Water Quality

The LPES Curriculum CD available from MWPS contains all lessons at print quality resolution, is searchable, and includes an index and PowerPoint presentations for each lesson. A full, printed version is available as is a 2-CD set of the lessons in PageMaker format. For more information or to purchase LPES materials, contact MWPS by phone at 1-800-562-3618, by fax at 1-515-294-9589, or by e-mail at mwps@iastate.edu

View Lesson 34 (PDF file). Individual sections can be accessed below.

Intended Outcomes

The participants will

  • Recognize the role of phosphorus (P) in controlling eutrophication.
  • Identify what happens to phosphorus in soil when it is added via manure and fertilizer.
  • Learn what practical farming measures can be used to minimize phosphorus loss.
  • Target cost-beneficial best management practices, understand how water moves within a landscape, and learn where large sources of phosphorus exist.
  • Review innovative products and measures being developed to help producers manage phosphorus.



The participants will

  • Determine the risk associated with high soil Phosphorus.

Author: Andrew Sharpley