RUSLE2 and Iowa Phosphorus Index Workshops

Kapil Arora and Greg Brenneman, Field Specialists-Agricultural Engineering - Central and Southeast Areas; and Angie Rieck-Hinz, Extension Program Specialist - Agronomy Department

Problem Statement:

Producers, co-op agronomists, and technical service providers generally are not trained on Revised Universal Soil Loss Equation (RUSLE2) principles and need better understanding of Iowa Phosphorus Index for conservation and nutrient planning.

Programmatic Response:

Two workshops titled RUSLE2 and Iowa Phosphorus Index were delivered in 2006.  These workshops, developed in collaboration with USDA Natural Resources Conservation Service (Iowa-NRCS), were held in Indianola and Iowa City. A total of 47 participants from Iowa, Minnesota, Nebraska, Kansas, and Missouri attended these workshops with the majority of participants being consultants and service providers.  During these workshops, Iowa-NRCS and ISU Extension staff provided hands-on training on Dominant Critical Area Determination, RUSLE2 Operations, Ephemeral & Classical Gully Erosion, Iowa Phosphorus Index Calculations, collecting field information, and Soil Sampling as needed to meet various regulatory requirements.


A total of 44 workshop evaluations were received.  Those reporting worked with or managed approximately 115 thousand acres and 358 clients on an annual basis.  They also reported developing over 349 nutrient management plans annually.  Benefit gained from the workshop was reported as some to quite a lot.  Participants indicated an average gain of $387 per client serviced or $1.21 per acre serviced.  The overall average gain was reported as over $3,100 per participant.

Participants completing evaluations provided a pre- and post-workshop level of knowledge in their evaluations.  All respondents indicated an average pre-workshop level of knowledge at 40 percent on all topics covered in the workshops.  This level of knowledge was raised to over 78 percent based on post-workshop evaluations.  Every participant reported that the information provided in workshop as helpful towards meeting their needs in developing conservation and nutrient management plans.

Several comments received during the workshops included: Real Life Example, Perfect; Very Clear and easy to follow. Great job; Good Workshop. I learned a lot about P-Index Plans and RUSLE2.; Thanks so much for the examples given and open discussion.; Thankful for the opportunity to contact any of the speakers at a later date if I have any questions.; etc.

April 2, 2007
160 - Natural Resources and Stewardship

Page last updated: April 11, 2007
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