1. USDA‐ARSGeorge E. Brown, Jr. Salinity Lab.450 W. Big Springs RdRiversideCA92507
2. USDA‐ARSWater Management Research Lab.9611 S. Riverbend Ave.ParlierCA93648
3. Alterra‐ILRIP.O. Box 476700AAWageningenThe Netherlands
4. Dep. of Plants, Soils, and BiometeorologyUtah State Univ.LoganUT84322‐4820