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School of Environment and Natural Resources


On-Field Ohio: Updating Ohio Phosphorus Risk Index

Maintaining soil phosphorus levels in accordance with the research-based Tri-State Fertility Recommendations helps lower the concentration of phosphorus in agricultural runoff, according to ongoing research by SENR research scientist Libby Dayton. Because erosion matters, the phosphorus associated with eroded soil can be curtailed by reducing soil disturbances such as tillage and by maintaining field cover either as crop residue or as a growing crop, she said. Through her On-Field Ohio project, she’s working to update and revise the Ohio Phosphorus Risk Index, an online tool that farmers can use to determine — and, if necessary, reduce — the risk of phosphorus being washed off their fields into water.

Read more about her research in the OARDC Report.