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Soil Nutrient Management Resources for Small Farms

Nutrient Management, Managing nutrients, whether it is synthetic fertilizer or manure and other organic fertilizers requires planning. Determining which type of fertilizer to apply, the application rate and timing are key factors in ...

Apr 2018 | Collection

Acidifying Soil for Crop Production West of the Cascade Mountains (Western Oregon and Washington)

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 ...

Donald A. Horneck, John M. Hart, Robert G. Stevens, Steven Petrie, James Altland | Feb 2004 | Extension Catalog publication Peer reviewed (Orange level)

Evaluating Soil Nutrients and pH by Depth in Situations of Limited or No Tillage in Western Oregon

Many nutrients and lime are not mobile in the soil. When applied to the soil surface without tillage, these materials remain in the top 2 inches, especially in production systems that lack tillage. If a soil ...

Nicole Anderson, John M. Hart, Donald A. Horneck, Dan M. Sullivan, Neil W. Christensen, Gene Pirelli | Oct 2010 | Extension Catalog publication Peer reviewed (Orange level)

Postharvest Soil Nitrate Testing for Manured Grass and Silage Corn (West of the Cascades)

This publication describes the use of postharvest soil nitrate testing as a tool for assessment of nitrogen (N) management in manured cropping systems west of the Cascade Mountains in Oregon, Washington, and south coastal British Columbia.

Dan M. Sullivan, Craig G. Cogger, Andy I. Bary, Shabtai Bittman, Linda Brewer | Mar 2023 | Extension Catalog publication Peer reviewed (Orange level)

Using the Nitrogen Mineralization Soil Test to Predict Spring Fertilizer N Rate for Soft White Winter Wheat Grown in Western Oregon

Soft white winter wheat is grown in western Oregon and requires a spring application of nitrogen (N) fertilizer for optimum production. Determining the amount of N to apply has been a challenge for growers. ...

Nicole Anderson, John M. Hart, Neil W. Christensen, Mark E. Mellbye, Michael D. Flowers | Nov 2010 | Extension Catalog publication Peer reviewed (Orange level)

Make Polyacrylamide Work for You

PAM is a synthetic water-soluble polymer composed of molecules of acrylamide. PAM binds soil particles together, causing them to settle out and not be carried away in runoff water. This prevents soil loss and ...

Chelsey L. Iida, Clinton Shock | May 2008 | Extension Catalog publication Peer reviewed (Orange level)

OSU Extension soil fertility study saves grower costs of applying gypsum to hemp crop

The study showed that the crop performed equally well with and without gypsum and nutritional samples of the hemp flowers did not indicate any problems by discontinuing applications.

Gordon B. Jones | Mar 2023 | Impact story

Living on the Land: Guide to Growing Cover Crops

This publication is part of the Living on the Land series. It provides concise information on how to grow cover crops. Use the button below to download this publication as a PDF. Listen to the Living on ...

Garrett Duyck, Ellen Hammond, Brian Tuck, Shilah Olson, Susan Kerr | Jan 2018 | Extension Catalog publication Peer reviewed (Orange level)

Nutrient Management for Sustainable Vegetable Cropping Systems in Western Oregon

This publication reflects over 30 years of vegetable production research conducted in the Willamette Valley. It is divided into three main sections: sustainable soil health; soil testing and nutrient management; and ...

Dan M. Sullivan, Ed Peachey, Aaron Heinrich, Linda Brewer | May 2017 | Extension Catalog publication Peer reviewed (Orange level)

Nitrogen-fixing trees “eat” rocks, play pivotal role in forest health

By tapping nutrients from bedrock, red alder trees play a key role in healthy forest ecosystems.

Chris Branam | Feb 25, 2019 | News story