Search OSU Extension

Showing 1 - 10 of 26 results.

Benefits of soil testing to guide pasture fertilization

Aug 2010
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 to using OSU program information to guide their fertilizer applications. The goal of this evaluation is to determine whether our programs lead to ...

By Shelby Filley, Gene Pirelli, Amy Peters | Article

Here's the scoop on chemical and organic fertilizers

Mar 9, 2015
Use these tips on how to apply organic amendments

By Kym Pokorny | News Story

Forages - hay and pasture collection

Aug 2019
This collection has information on soil testing and ferilizing, renovation. forage management , hay, irrigation, feeding values, forage types, forage anti-quality factors, leasing pastures and more.

By Shelby Filley | Collection

General care for hydrangeas

Jun 2018
Look to this hydrangea how-to for advice on soil, water, pruning and more. Learn a simple pH trick that will turn blooms from pink to blue.

By Kristin VanHoose | Article


Aug 2004
Fertilizers, Hothouse Forcing, Harvesting, Handling, Storage, Pest Control


Coastal Pastures in Oregon and Washington

Sep 1996
The coastal regions of Oregon and Washington have different climate and soils than other parts of the states. Rainfall is high, ranging from 70 inches in southern Oregon to more than 100 inches in the coastal mountains. Temperature is moderated by the Pacific Ocean resulting in long seasons and mild temperatures. Astoria, Oregon, for example, averages 276 frost-free days and ...

By Fred Lundin | Article

Some Garden Myths and What Research Has to Say

Feb 2014
From the myth of collapsing root balls to myth of compost tea - learn the facts about a range of tips you may have heard through the years about healthy soil, pretty mulch, and more.

By Richard Little | Article

Nitrogen-Phosphorus-Potassium Values of Organic Fertilizers

May 2003
Organic fertilizers are used to improve soil quality and tilth, and to provide nutrients for plant growth. They provide nitrogen, phosphorus, and potassium, as well as other elements essential for plant development and overall good health.

By Ross Penhallegon | Educational Document

Nitrogen Fertilizer: Where Does it Go?

Jul 1994
Most Christmas tree growers fertilize with nitrogen (N) intending to improve tree color, growth, and ultimately value. Where does the fertilizer go after application? How much is actually taken up by the trees, stored in the soil or lost to the environment? How much N is removed at harvest? Should growers be concerned about depletion of soil N reserves from repeated ...

By Chal Landgren, Michael Bondi, Steve Webster, Rick Fletcher | Article

New 1000 ft2 Organic Fertilizer and Cover Crop Calculator Available

Jul 2014
The OSU Organic Fertilizer and Cover Crop Calculator is available on the Small Farms website. It is a downloadable Excel spreadsheet that allows farmers and gardeners to estimate nitrogen release from organic fertilizers and cover crops. The calculator makes it easy to compare the cost of nutrients from cover crops and fertilizers, and develop a fertilizer plan. This allows you...

By Nick Andrews | Article