Soil | Servicio de Extensión de OSU

Nutrient management

OSU Organic Fertilizer & Cover Crop Calculator: Predicting Plant-available Nitrogen (in English)

Describes the OSU Organic Fertilizer & Cover Crop Calculator and using it to predict plant-available nitrogen.

Dan M. Sullivan, Nick Andrews, Clare Sullivan, Linda Brewer | May 2019 | OSU Extension Catalog

Camelina Nutrient Management Guide for the Pacific Northwest (in English)

Camelina is a drought-tolerant, low-input, oilseed crop grown throughout the U.S. Pacific Northwest. This publication provides soil fertility recommendations—including nitrogen, phosphorus, potassium, sulfur, and soil pH adjustments—for ...

Amber Moore, Don Wysocki, Tracy Wilson | Feb 2019 | OSU Extension Catalog

Nutrient Management for Pastures: Western Oregon and Western Washington (in English)

Describes nutrient management practices for pastures to produce forage as a main feed source for western Oregon and Washington livestock.

Amber Moore, Gene Pirelli, Shelby Filley, Dan M. Sullivan, Melissa Fery | Jan 2019 | OSU Extension Catalog

Explore nutrient mangement guides

Soil organic matter as a soil health indicator

Testing for soil organic matter helps you monitor soil health over time. Good soil management practices can improve soil organic matter in three to five years. Learn about sampling, testing and how to interpret results for your soil.

Download now

Photo Credit: Bits and Splits - Adobe Stock (Cropped from original)

Soil erosion and conservation

Selecting successful cover crops for your hop yard

This fact sheet is designed to help guide commercial hop growers in selecting cover crops. The guide discusses pros and cons for four different cover crop strategies: annual fall-planted, annual spring-planted, annual re-seeding and...

Betsy Verhoeven | Sep 2019 | Article

Soil, Seedbed Preparation and Seeding for Hemp (in English)

Growers planting a successful commercial crop of hemp for seed, fiber, or resin will follow these guidelines for soil preparation, seeding, and irrigation.

Richard Roseberg, Valtcho Jeliazkov, Sam Angima | Aug 2019 | OSU Extension Catalog

More soil erosion and conservation resources

Soil sampling and testing

Soil Nitrate Testing for Willamette Valley Vegetable Production (in English)

A soil nitrate test measures the concentration of nitrate in the soil at a specific moment in time, including nitrate originating from organic inputs, fertilizer, and soil organic matter. This publication describes how to use ...

Dan M. Sullivan, Nick Andrews, Aaron Heinrich, Ed Peachey, Linda Brewer | Jan 2019 | OSU Extension Catalog

Learn more on soil testing

Soil health

Nutrient and Soil Health Management for Sweet Corn (Western Oregon) (in English)

This guide integrates recommendations for nutrient management with cover cropping practices that promote soil health. Recommendations for nutrient rate, source, timing and placement for nitrogen, phosphorus, potassium, sulfur, calcium, ...

Dan M. Sullivan, Ed Peachey, Aaron Heinrich, Linda Brewer | Jan 2020 | OSU Extension Catalog

Find more soil health resources

Latest Content

Testing strips for soil acidity?

P: I'm working on getting my blueberry patch acidified properly, and I've noticed that the pH keeps drifting upwards (I suspect the buffered municipal water I irrigate with is the cause). At any rate, I'm looking for ...

R: View answer | View all featured questions

VIT TECH | Soils (June 2022) (in English)

Kevin Pogue, Professor of Geology at Whitman College, details the geological history and various soil types important to viticulture in the Walla Walla Valley at the June 2022 VIT TECH session.

Aug 2022 | Video

Fostering Stewardship: A How-to Guide for Trainers (in English)

This curriculum package helps natural-resource professionals train landowners on best practices in resource management. Topics include forests, fire, streams, wildlife, soil, pastures, water systems and economics — all issues facing landowners in many parts of the West.

Rachel Werling, Max Bennett | Jun 2022 | OSU Extension Catalog

Browse All Resources

Latest stories

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.

Mar 2023 | Impact story

Like diamonds, clay soils are forever

Bark, manure, leaf mold and compost are among the organic amendments commonly used to improve clay soil.

Kym Pokorny | Feb 5, 2022 | News story

Sand, silt or clay? Texture says a lot about soil

Texture determines all kinds of things like drainage, aeration, the amount of water the soil can hold, erosion potential and even the amount of nutrients that can be stored.

Kym Pokorny | Sep 3, 2021 | News story

See all news

Explore more resources

Gardening techniques

Water management and conservation

Upcoming Events

Aug 23

Climate Adaptive Strategies for Small Farms: Reduced Tillage Options

3:00 pm - 6:00 pm Aurora, OR

Sep 6

Climate Adaptive Strategies for Small Farms: Dry Farmed Field Day

3:00 pm - 6:00 pm Aurora, OR

Meet Our Experts

Amber Moore

Soil Fertility

Ruijun (Ray) Qin

Crop & Soil

¿Tienes una pregunta? Pregúntale a Extensión

“Pregúntale a Extensión” es una forma de obtener respuestas del Servicio de Extensión de Oregon State University. Contamos con expertos en familia y salud, desarrollo comunitario, alimentación y agricultura, temas costeros, silvicultura, programas para jóvenes y jardinería.

Haganos una pregunta

Testing strips for soil acidity?

R: View answer | View all featured questions

See More Questions