1. Ogallala Aquifer Program; USDA-Conservation and Production Research Laboratory - Bushland; TX
2. Kansas State University, Kansas Center for Agricultural Resources and Environment
3. Oklahoma Water Resources Center; Oklahoma State University, formerly Texas Water Resources Institute at Texas A&M AgriLife Research and Extension
4. Texas Tech University College of Agricultural Sciences and Natural Resources
5. West Texas A&M University, College of Agriculture and Natural Sciences;
6. Cropping Systems Research Laboratory-Agricultural Research Service - USDA