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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 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 ...

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 evaluating these methods in on-farm WSARE-funded trials in the Northern Willamette Valley to find the most practical and accurate method for use on ...

Nick Andrews | Apr 2007 | Article

Dry Farming Oregon

Oregon State University is known for its College of Agricultural Sciences. The school offers 25 Major and Minor options that include but are not limited to Botany, Animal Sciences, and even Fermentation Sciences for you beer lovers out there. The OSU Extension Service Small Farms Program is one of many things that go on out there and is nestled in the heart of ...

Jan 2017 | Article

Sustainable food-buying options expand

Northwest growers adopt sustainable agriculture practices and certification.

Mar 27, 2008 | News Story

The ABC’s of NPK

Nitrogen Phosphorus Potassium

Lisa Ehle | Jun 2018 | Article

Reflections of a SARE Fellow

The 2014-2016 cadre of SARE Fellows visited numerous farms in Arkansas, Nebraska, Idaho, and West Virginia to study sustainable agricultural practices. The Fellows themselves were from Florida, Maine, Missouri, and Washington; they overlapped with eight other Fellows who were either starting or ending their two-year study period. The various locations visited, diverse enterprises studied, ...

Susan Kerr | Oct 2017 | Article