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Soil Test Interpretation Guide

This publication provides an overview of soil testing and general guidelines for interpreting soil test results for nitrogen, phosphorus, sulfur, potassium, calcium, magnesium, boron, zinc, copper, manganese, iron, molybdenum, chloride, ...

Dan Sullivan | Jul 2011 | OSU Extension Catalog

Willamette Valley Soil Quality Card

Use in conjunction with the Willamette Valley Soil Quality Card Guide (EM 8710), which includes detailed information about each indicator listed on the Soil Quality Card. Designed to assess current soil quality conditions, record ...

Jun 1998 | OSU Extension Catalog

OSU researchers develop GIS tool to help China reduce soil erosion

Oregon State University researchers are working with the People’s Republic of China on development of a web-based Geographic Information System (GIS) mapping tool to help land managers find ways to control massive soil erosion in China.

Dec 17, 2004 | News Story

Willamette Valley Soil Quality Card Guide

Designed to supplement the Willamette Valley Soil Quality Card (EM 8711) by providing additional information on soil quality indicators. For each soil quality indicator, the guide contains a description, explanation of why the ...

Jun 1998 | OSU Extension Catalog

Soil Organic Matter as a Soil Health Indicator: Sampling, Testing and Interpretation

Testing for soil organic matter helps you monitor soil health over time. Good soil management practices can improve soil organic matter in three to five years.

Dan Sullivan, Amber Moore, Linda Brewer | Aug 2019 | OSU Extension Catalog

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

Post-Harvest Soil Nitrate Testing for Manured Cropping Systems West of the Cascades

Describes the use of postharvest soil nitrate testing as a tool for assessing nitrogen management in manured cropping systems west of the Cascades. The first section gives general information on the test and is designed for use...

Dan Sullivan | May 2003 | OSU Extension Catalog

Getting soil tested in The Dalles

Get your soil tested on Thursdays in The Dalles.

Jul 2018 | Article

Soil Testing & Amendments

OSU Extension catalogs with soil information.

Jun 2018 | Collection

Heavy metals in urban soils: Best practices to stay safe

Q: Given the recent news on emissions of heavy metals in Portland, I'm looking for information on which vegetables take up these pollutants from the soil. What else should I be concerned about?

A: View answer | View all featured questions