Webinar: Design and Function of Phosphorus Removal Structures | Building a Culture of Conservation

Webinar: Design and Function of Phosphorus Removal Structures

June 14, 2022

The Iowa Learning Farms (ILF) conservation webinar taking place June 22 at noon CDT will feature Dr. Chad Penn, research soil chemist at United States Department of Agriculture, Agriculture Research Service (USDA-ARS) and Purdue University. Penn studies nutrient transport, crop nutrient uptake efficiency, improvements in phosphorus fertility recommendations and thermodynamics. His work at the National Soil Erosion Research Lab includes utilization of the Phosphorus Transport Reduction App (P-TRAP) for phosphorus removal structure design.

In the webinar, “Phosphorus Removal Structures: An Overview of Utility and Limitations,” Penn will provide a summary of phosphorus (P) removal structure design and functions. In addition, he will discuss what these structures can and cannot do, as well as providing examples of different designs and an overview of where they can be most effective. Penn will also cover the economics of P removal structure practices as well as the required inputs to enable proper design and successful implementation.

“High levels of phosphorus in soils can lead to excessive dissolved phosphorus in drainage water that can continue to contribute to P losses to surface waters for many years if not mitigated,” said Penn. “Traditional best management practices for nutrient loss reductions are not as effective for P as they are for nitrates. While not appropriate for every farm, dedicated P removal structures are a new ‘precision conservation’ practice, applicable in specific locations and situations. The P-TRAP software helps create custom designs that can draw down P levels in soil to safe levels across a variety of situations and sites.”

Participants in Iowa Learning Farms Conservation Webinars are encouraged to ask questions of the presenters. People from all backgrounds and areas of interest are encouraged to join.


Webinar Access Instructions

To participate in the live webinar, shortly before noon CDT June 22:

Click this URL, or type this web address into your internet browser: https://iastate.zoom.us/j/364284172

Or, go to https://iastate.zoom.us/join and enter meeting ID: 364 284 172


Or, join from a dial-in phone line:

Dial: +1 312 626 6799 or +1 646 876 9923

Meeting ID: 364 284 172


The webinar will also be recorded and archived on the ILF website, so that it can be watched at any time. Archived webinars are available at: https://www.iowalearningfarms.org/page/webinars.

A Certified Crop Adviser board-approved continuing education unit (CEU) has been applied for. Those who participate in the live webinar are eligible. Information about how to apply to receive the credit will be provided at the end of the live webinar.