1. Department of Crop & Soil Sciences, Puyallup Research & Extension Center, Washington State University, Puyallup, Washington 98371, United States
2. Department of Crop & Soil Sciences, Washington State University, Pullman, Washington 99164, United States
3. Department of Biosystems Engineering and Soil Science, University of Tennessee, Knoxville, Tennessee 37996, United States
4. Earth and Molecular Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States