¹R. P. Negrini, ²Y. Miao, ³K. Mizuta, ⁴K. Stueve, ¹D. Kaiser, ¹J. A. Coulter

1. University of Minnesota
2. College of Food, Agricultural and Natural Resource Sciences, University of Minnesota
3. Precision Agriculture Center, Department of Soil, Water and Climate, University of Minnesota, St. Paul, USA.
4. Stueve Ag Enterprise, Dumont, MN, USA