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Showing 1 - 8 of 8 results.

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

Predicting Nitrogen Availability from Organic Amendments: laboratory, Field, and Computer Stimulation

A study to improve the ability to predict nitrogen availability from organic soil amendments, including improved accuracy of Nitrogen availability estimates, to target amendment application rates to meet crop N needs.

Dan Sullivan, E.S. Gale, Delbert Hemphill, Craig Crogger, Andy Bary, E.A. Myhre | Apr 2018 | Publication

Nitrogen Fertilizer: Where Does it Go?

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 ...

Chal Landgren, Michael Bondi, Steve Webster, Rick Fletcher | Jul 1994 | Article

Estimating Nitrogen & Dry Matter From Cover Crops

Cover crops are used by many farmers, but very few know how much nitrogen (N) or dry matter they are getting from their cover crops. There are some methods in the literature for estimating cover crop contributions. We are ...

Nick Andrews | Apr 2007 | Article

Take All

This root rot look-alike is endangering wheat, grass, and barley. Learn the signs, symptoms, and controls of this disease.

Mary Corp | Oct 2018 | Article

The ABC’s of NPK

Nitrogen Phosphorus Potassium

Lisa Ehle | Jun 2018 | Article

Sawflies

Will Oregon meet these wasp-like pests again?

Mary Corp | May 2003 | Article

Scouting and collecting Wheat Head Armyworms

What growers can do to scout for and help identify wheathead armyworms.

Mary Corp | Oct 2008 | Article