Tuesday, November 6, 2007 - 2:30 PM
196-5

Laboratory Analyses of Soils Containing Gypsum.

Thomas Reinsch1, Richard Ferguson1, Wayne Hudnall2, Curtis Monger3, and C.T. Hallmark4. (1) USDA-NRCS, Federal Building, Room 152, MS 41, 100 Centennial Mall North, Lincoln, NE 68508-3866, (2) Texas Tech University, Texas Tech University, 2500 Broadway, Lubbock, TX 79409, (3) Plant & Environmental Sciences, New Mexico State University, MSC 3Q, Las Cruces, NM 88003, (4) Texas A&M University - Soil & Crop Sciences, Dept of Soil and Crop Sciences, 2474 TAMU, College Station, TX 77843-2474

We present comparison data obtained by four laboratories for selected, established and novel methods applied to soils containing gypsum. We discuss the need for new analyses for chemical, physical, and mineralogical properties of soils with gypsum.