1. USDA-ARS; P.O. Box 5367 Mississippi State MS 39762 Mississippi
2. Macon Ridge Res. Stn.; 212 Macon Ridge Rd. Winnsboro LA 71295
3. Auburn University; 120 Extension Hall Auburn AL 36849-5633
4. Crop & Soil Sciences Dep.; Univ. of Georgia; Athens GA 30602-7272
5. Upper Coastal Plain Substn.; P.O. Box 706 Winfield AL 35594
6. USDA-ARS, J. Phil Campbell, Sr.; Natural Resource Conservation Center; 1420 Exp. Stn. Rd. Watkinsville GA 30677
7. Louisiana State University; 215 M.B. Sturgis Hall Baton Rouge LA 70803