1. Gulf Coast Research and Education Center University of Florida 14625 County Road 672 Wimauma FL 33598 USA
2. Department of Agricultural, Food, and Resource Economics Michigan State University Justin S. Morrill Hall of Agriculture 446 West Circle Dr. East Lansing MI 48824‐1039 USA
3. Department of Agronomy University of Wisconsin‐Madison 1575 Linden Dr Madison WI 53706 USA
4. Department of Plant, Soil and Microbial Sciences Michigan State University 1066 Bogue St A286 East Lansing MI 48824 USA