Ag Engineering/Agronomy, Central Iowa and BioCentury Research Farms
Two saturated buffers were installed on the Uthe Farm (Boone County) beginning fall 2016, and installation was completed spring 2017. Four field tile outlets were intercepted, and the water was redirected using control structures to a perpendicular distribution line of perforated tile. These distribution lines were placed underneath a grass buffer strip along Big Creek. Tile water from the field tile is redirected to the distribution lines, allowing water to seep into the soil beneath the grass buffer. Nitrates are removed by plants and microorganisms before the water enters Big Creek.
"Installation and Early Data of Saturated Buffers,"
Farm Progress Reports: Vol. 2017
, Article 146.
Available at: https://lib.dr.iastate.edu/farmprogressreports/vol2017/iss1/146