About the Authors

Eric S. Melby

Affiliation Department of Soil Science, University of Wisconsin-Madison, Madison, Wisconsin, United States of America

Douglas J. Soldat

djsoldat@wisc.edu

Affiliation Department of Soil Science, University of Wisconsin-Madison, Madison, Wisconsin, United States of America

Phillip Barak

Affiliation Department of Soil Science, University of Wisconsin-Madison, Madison, Wisconsin, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DJS PB. Performed the experiments: ESM DJS PB. Analyzed the data: ES DJS PB. Contributed reagents/materials/analysis tools: DJS PB. Wrote the paper: ES DJS PB.