Search OSU Extension

Showing 1 - 5 of 5 results.

Soil Nitrate Testing for Willamette Valley Vegetable Production

A soil nitrate test measures the concentration of nitrate in the soil at a specific moment in time, including nitrate originating from organic inputs, fertilizer, and soil organic matter. This publication describes how to use ...

Dan Sullivan, Ed Peachey, Aaron Heinrich, Linda Brewer, Nick Andrews | Jan 2019 | OSU Extension Catalog

Should I Worry about Heavy Metals in My Garden Soil?

What do we know about heavy metals in soil? What do we know about lead exposure through soil and garden plants? What do we know about cadmium and arsenic in soils? What can I do if I’m at risk for heavy metals in my garden soil?

Jul 2016 | Article

Use Caution When Irrigating Oaks and Madrones

Excessive summer irrigation of oak and madrone trees may promote fungal diseases such as the oak root fungus (aka armillaria root disease) and crown rot.

Jun 2018 | Article

What’s Wrong With My Madrone?

This article briefly discusses the most prevalent madrone disease problems, then offers a broader perspective on the health of this southern Oregon native.

Max Bennett, Dave Shaw | Nov 2006 | Article

Pacific NW Native Plants by Plant Community

Useful information about Western Hemlock-Douglas Fir Forest, Prairie, Scrub-Shrub Wetlands, and Mixed Deciduous Forest/Steep Dry Slope.

Lisa Albert | Jun 2014 | Article