Manure Results (IMAGE) Penn State Caption Thanks to the design of research facilities at Penn State, researchers were able to collect, measure and analyze both overland and subsurface flows from plots. As the bar graphs show, manure injection resulted in reduction of total phosphorus and dissolved phosphorus in runoff. Credit Jack Watson Research Group / Penn State Usage Restrictions non commercial use only License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.