Lutcher, L. K. (Lawrence K.), 1944- Christensen, William F Schillinger, 1952- Wysocki, Stewart Wuest, Oregon State University. Extension Service, Washington State University. Extension et al. 2012. Phosphorus Fertilization of Late-Planted Winter Wheat In No-Till Fallow : Applied Research In the Low-Precipitation Zone. : [Covallis, Or.] : Oregon State University Extension Service.