1. Dep. of Crop and Soil Sciences Washington State University‐IAREC Prosser 24106 N Bunn Rd. WA 99350
2. Northern Agricultural Research Center Montana State Univ. Havre 3710 Assinniboine Rd. MT 59501‐8409
3. International Water Management Inst.‐Nepal Jhamsikhel‐3, Lalitpur, GPO 8975 EPC 416 Kathmandu Nepal