Beanfield (IMAGE) Penn State Caption Normally, Pennsylvania soils would contain too much phosphorus to allow for field experiments on phosphorus stress. But Lynch's research group has developed a technique to create experimental plots that replicate the phosphorus-depleted conditions of tropical oxisol soils at the University's Russell E. Larson Agricultural Research Center at Rock Springs. Credit Jonathan Lynch Lab/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.