1. 2 Comer Hall, Auburn Univ.; Alburn AL 36849-5402
2. Alabama Coop. Ext. Serv.; P.O. Box 1904 Decatur AL 35602
3. Dep. of Agron. and Soils, 202 Funchess Hall; Auburn Univ.; Holy Trinity AL 36859-5412
4. Dep. of Agronomy; Mississippi State Univ.; Mississippi State MS 39762