Search OSU Extension

Showing 1 - 10 of 15 results.

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

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

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

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

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

Benefits of soil testing to guide pasture fertilization

We evaluated the production practices of clientele who use our OSU Extension program information to properly test soil and follow OSU guidelines for fertilizing pastures, and compared that to the standard practices they used prior...

Shelby Filley, Gene Pirelli, Amy Peters | Aug 2010 | Article

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

Customized Growing Degree Day Calculations and Forecasting

This document provides step by step instructions for calculating growing degree day status and viewing growing degree day forecasts available from the uspest.org website. The uspest.org website allows users to select a weather station near them and then set their own degree units, lower and upper thresholds for growing degree calculations. Most pre-calculated growing degree reports use a default of 50F as their lower threshold. Unfortunately, this is not accurate for many of the crops we grow in Oregon. Thus, the ability to custom calculate and generate forecasts for growing degree days is ideal. Check out uspest.org, follow these instructions and get ahead on your planning!

Betsy Verhoeven | Dec 2019 | Fact Sheet