1. Agricultural and Food Engineering Dep.; Indian Institute of Technology; Kharagpur WB 721302 India
2. Land Resources and Environmental Sciences Dep.; Montana State Univ.; P.O. Box 173120 Bozeman MT 59717-3120
3. Dep. of Agronomy; Kansas State Univ.; Manhattan KS 66506
4. Geology Dep.; Univ. of Montana; Missoula MT 59812
5. GEBJ Soil Salinity Lab.; Riverside CA 92507