Article Information
- Published online May 12, 2020.
Author Information
- E. John Sadler,
- Jean L. Steiner,
- Jerry L. Hatfield,
- David E. James,
- Bruce C. Vandenberg and
- Teferi Tsegaye
E. John Sadler (retired) was research leader, USDA Agricultural Research Service (ARS) Cropping Systems and Water Quality Research Unit in Columbia, Missouri. Jean L. Steiner (retired) was director, USDA ARS Grazingland Research Laboratory in El Reno, Oklahoma. Jerry L. Hatfield (retired) was director, USDA ARS National Laboratory for Agriculture and the Environment in Ames, Iowa. David E. James is a geographic information specialist, USDA ARS National Laboratory for Agriculture and the Environment in Ames, Iowa. Bruce C. Vandenberg is an information technology specialist (data management), USDA ARS Center for Agricultural Resources Research in Fort Collins, Colorado. Teferi Tsegaye is the national program leader, USDA ARS Water Availability and Watershed Management in Beltsville, Maryland.