1. Texas AgriLife Research; Texas A&M University; 2301 Experiment Station Rd. Bushland TX 79012
2. Virginia Tech; Tidewater AREC; 6321 Holland Road Suffolk VA 23437
3. Conservation and Production Research Laboratory; USDA-ARS; P.O. Drawer 10 Bushland TX 79012
4. Irrigated Agriculture Research and Extension Center; Washington State University; 24106 N Bunn Rd. Prosser WA 99350