A study of precipitation and yield levels in fallow-wheat rotations at three
Pacific Northwest locations demonstrated that in the Columbia Plateau region,
the variability and skewness of precipitation increased with decreasing mean
amounts of precipitation. The seasonal distribution of precipitation had a
marked effect on wheat yield. Comparisons of precipitation...
The dryland cereal producer in the lower Columbia Basin makes many critical soil and crop management decisions each season. These decisions are made more difficult because of the highly variable climatic conditions that exist in the region. A particularly difficult crop management decision facing the cereal grower is the determination...