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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 step-by-step instructions...

Feb 2004 | OSU Extension Catalog

Are there pollution standards for bagged soil?

Q: Bagged garden soils have no information about their source or safety. I recently bought bags (big box store) and am concerned about where the soil was actually mined. There were some weird things included in each of the ...

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Getting soil tested in The Dalles

Get your soil tested on Thursdays in The Dalles.

Jul 2018 | Article

Are ashes good for my soil?

Q: Can fireplace ash be used in the garden successfully or is it harmful to the soil?

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Soil Improvement and Cover Crop Resources for Small Farms

Even though different soils have some properties that cannot be changed, such as texture, soil quality can be improved by implementing good management strategies. Soils can be improved for water holding capacity, drainage, structure,...

Apr 2018 | Collection

Soil quality test available for gardeners and farmers in the Willamette Valley

Gardeners and farmers can do their own soil analysis.

Jan 13, 2009 | News Story

Is a dog latrine a bad place to grow vegetables?

Q: I'm very concerned about the health hazards of eating food grown in the beds where a dog has pooped. At this point, I could build a fence around the whole garden to stop any further damage, but I'm wondering about the ...

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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

General care for hydrangeas

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.

Kristin VanHoose | Jun 2018 | Article

Management Strategies for Dealing with Select Poisonous Plants in Oregon

Rangeland, pastures and hay fields throughout Oregon often contain poisonous plants that are potentially dangerous to cattle and other livestock.

Andy Hulting, Karin Neff | Sep 2019 | Publication