Browsing Washington State University Extension by Author "Zuzel, J. F."
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Agronomic Zones for the Dryland Pacific Northwest
Douglas, C. L.; Wysocki, Donald John, 1952-; Zuzel, J. F.; Rickman, R. W.; Klepper, B. L. (Pullman, Washington : Washington State University. Extension.Corvallis, Oregon : Oregon State University. Extension Service.Moscow, Idaho : University of Idaho. Extension.Washington, D.C. : U.S. Dept. of Agriculture., 1990-09)Prepared by an interdisciplinary task force from each state and keyed to Idaho, eastern Oregon, and eastern Washington this publication explains the defining criteria [annual precipitation, soil depth, and growing degree ...