We are monitoring long term impacts of different P and K management approaches (maintenance and build up) on soils and crops at three sites in Ohio. The experiment was established in 2006 and has received fertilizer applications from 2006-2020. Since 2020/2021, the plots are undergoing a drawdown phase. We are monitoring soil P and crop yields on an annual basis to refine crop P response, which will have implications on farm economics and water quality in Ohio.
