Research on Blind Inlets Shows Promise to Reduce Phosphorus Loss in the Right Locations
Dr. Amy Kaleita
Evaluating the effectiveness of stacked practices: Utilizing modified blind inlets at terrace sites for N and P load reductions
Dr. Michelle Soupir
Virtual Field Day: Blind inlets
A free virtual field day on Thursday, Jan. 19, at 1:00 p.m. (central time) will feature research on blind inlets. The event is sponsored in part by Iowa Learning Farms in conjunction with the Iowa Nutrient Research Center and the Conservation Learning Group. Participants will have the opportunity for a discussion with the farmers and researchers involved.
Currently, blind inlets are listed in the Iowa Nutrient Reduction Strategy as an erosion control practice that reduces phosphorus (P) loss. Blind inlets have been shown to reduce sediment and phosphorus losses by 80- 98%. However, gravel filter blind inlets are not effective for trapping dissolved nutrients like nitrate. This project, funded by the Iowa Nutrient Research Center, builds on a pilot project completed for the Iowa NRCS that looked at the effectiveness of incorporating a woodchip bioreactor into a traditional in-field blind inlet placed behind contour terraces and WASCOBs to reduce nitrate loss as well.
Get more details or the link to participate at: https://www.extension.iastate.edu/news/can-modified-blind-inlets-terrace-sites-reduce-n-and-p-loads.