Check out yellow leaves on rhododendrons and azaleas.
A list of recommended trees and shrubs in Oregon, good for controlling erosion.
Discusses the processes of manganese (Mn) reaction in the soil, Mn movement in plants, Mn function in plants, results of studies of Mn in Oregon nursery fields, and management practices to prevent Mn deficiency in field-grown ...
Differences between processed and organic fertilizers are explained in this article.
OSU Extension publications show how to grow several kinds of berries, fruit trees, roses and native plants in Central Oregon.