1. Department
of Crop, Soil and Environmental Sciences, University of Arkansas, 1366 West Altheimer Drive, Fayetteville, Arkansas 72704, United States
2. USDA-Agricultural Research Service, Cropping Systems and Water
Quality Research Unit, 269 Ag. Eng. Bldg, Columbia, Missouri 65211, United States
3. Department
of Forestry, Center for Agroforestry, University of Missouri, 203 ABNR
Bldg., Columbia, Missouri 65211, United States
4. Department
of Chemistry, Missouri University of Science and Technology, 142 Schrenk
Hall, 400 West 11th Street, Rolla, Missouri 65409, United States
5. Division
of Plant Sciences, University of Missouri, 214D Waters Hall, Columbia, Missouri 65211, United States