1. Chiquita Brands North America, James Lugg Research Center; 607 Brunken Ave. Salinas CA 93901
2. Atatürk University Faculty of Agriculture, Department of Soil Science; Erzurum Turkey
3. Department of Agronomy, Iowa State University; 2403 Agronomy Hall Ames IA 50011
4. School of Environment and Natural Resources, The Ohio State University; 101A Hayden Hall, 1680 Madison Ave. Wooster OH 44691