Soil acidity, expressed by low soil pH, causes reduced crop growth and significant economic loss. It is the most commonly overlooked and poorly understood yield-limiting factor in western Oregon and a developing concern in eastern...
Explains the relationship between high soil pH and nutrient deficiencies in crop plants. Color photos illustrate symptoms of pH-induced nutrient deficiency. Explains the causes of high soil pH and presents step-by-step instructions for lowering pH.
This publication describes how to estimate lime application rate and lists criteria for choosing liming materials (source), lime application method (placement), and how often to apply lime (frequency).
Explains the relationship between high soil pH and nutrient deficiencies in blueberries, rhododendrons, azaleas, and other ornamental crops. Color photos illustrate symptoms of pH-induced nutrient deficiency. Presents step-by-step instructions...
Framed or mounded, raised beds give plant roots the space they need
Gardening in raised beds has been a common practice for centuries. "Raised" means the soil level in the bed is higher than its surrounding, and "bed" implies it is small enough to work from the walkways.
Trees all over Oregon are displaying signs of poor health. People are quick to blame insects, but insects are rarely the underlying cause of the problem. Drought and other stressors can make trees vulnerable to pests and disease.
Useful information about Western Hemlock-Douglas Fir Forest, Prairie, Scrub-Shrub Wetlands, and Mixed Deciduous Forest/Steep Dry Slope.