1. Department
of Agriculture and Biosystems
Engineering, Iowa State University, Ames, Iowa 50011, United States
2. Research
Engineer, Engineering and Wind
Erosion Research Unit, Center for Grain and Animal Health
Research, Agricultural Research Service, U.S. Department of Agriculture,
1515 College Avenue, Manhattan, Kansas 66502, United States
3. Department of Crop and Forest Science, ETSEA, Universitat de Lleida, 25006
Lleida, Spain
4. Department of Agriculture and Biosystems
Engineering, Iowa State University, Ames, Iowa 50011, United States