USDA-ARS National Soil Erosion Laboratory - water filtration system and P-TRAP application

Featuring Dr. Chad Penn and a team of engineers and technicians.

P-TRAP is a free software developed by the USDA ARS allowing non-engineers to design and build P filters, which can significantly decrease phosphorus runoff from farm fields, reducing harmful surface water eutrophication and algal blooms, as demonstrated in this video.

The video is being distributed to farmers and organizations across the United States.

You can access the software at:

The use of trade, firm, or corporation names in these methods is for the information and convenience of the viewer. Such use does not constitute an official endorsement or approval by the U.S.D.A. Agricultural Research Service, of any product or service to the exclusion of others that may be suitable.

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