Provides consumptive use and net irrigation requirements for economically important crops in 27 climatic regions in Oregon. Computations are based on the modified Blaney-Criddle calculation method and climatic database information. Contains tables of: 1) The typical growing seasons of selected Oregon crops by region and 2) Crop water (ETcrop) and net irrigation requirements on a monthly basis by region. Includes examples of the application of ETcrop and net irrigation requirements tables to irrigation system design and irrigation scheduling, ETcrop contour maps, unit conversion tables, and a list of references.
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