1. Department of Crops and Soil Sciences; Washington State University; Pullman WA USA
2. Department of Plant Soil and Entomological Sciences; University of Idaho; Moscow ID USA
3. Nuclear Magnetic Resonance Spectroscopy Center; Washington State University; Pullman WA USA
4. Root Disease and Biological Control Research Unit; USDA-ARS; Washington State University; Pullman WA USA
5. School of the Environment; Washington State University; Pullman WA USA