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 managing soil to improve crop yield and quality, reduce fertilizer costs and help protect the environment.

Nutrient Management

Eastern Oregon Liming Guide

Liming is a new practice for the inland Pacific Northwest, necessitated by soil acidification caused by nitrogen fertilization. This publication provides guidance on how to evaluate cropping systems for lime need and how to determine lime application rate.

Dan M. Sullivan, Donald A. Horneck, Don Wysocki | May 2013 | 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)

Fertilizer and Nutrient Management Guides

Organic Fertilizer Resources

Estimating Plant-Available Nitrogen from Manure

This publication discusses management practices that increase crop nitrogen utilization. It also includes an interactive worksheet for calculating available nutrients supplied by manure application. The worksheet can be ...

Dan M. Sullivan | Mar 2023 | Extension Catalog publication Peer reviewed (Orange level)

Fertilizing with Manure and Other Organic Amendments

Are you thinking about using manure to fertilize your farm but want more information? Properly managed manure applications recycle nutrients to crops, improve soil quality, and protect water quality. From deciding ...

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

Fertilizing Farmland with Yard Trimmings from Landscape Maintenance

Yard trimmings are a beneficial soil amendment that supply plant nutrients and organic matter. They have been successfully used in the production of a variety of annual and perennial crops in Washington State. From deciding whether to use yard trimmings on your farm to learning how to calibrate applications, this publication takes you through the process of fertilizing your farmland with yard trimmings.

Dan M. Sullivan, Craig Crogger, Andy Bary | Jun 2016 | Online resource

Soil Fertility in Organic Systems: A Guide for Gardeners and Small Acreage Farmers

This publication discusses the many types of fertilizers and soil amendments available for organic plant production. Fertilizer formulations, nutrient availability, and application practices for common organic products are ...

Doug Collins, Carol A. Miles, Craig G. Cogger, Richard T. Koenig | Jul 2013 | Extension Catalog publication Peer reviewed (Orange level)

Fertilizers and the Environment

Tree Buffers Along Streams on Western Oregon Farmland

Explores a variety of options for protecting anadromous fish populations in western Oregon river systems while being mindful of trade-offs between farmland production and fisheries and wildlife values. Identifies physical...

William H. Emmingham, Badege Bishaw, William Rogers | Oct 2005 | Extension Catalog publication Peer reviewed (Orange level)

Managing Irrigation Water Quality for Crop Production in the Pacific Northwest

Focuses on analyses used for typical agricultural irrigation water sources. Discusses sampling procedures, analyses to perform, and hazards from salts, individual nutrients, pH, sodium, carbonates, and lime. Includes numerous examples and reference tables.

Bryan G. Hopkins, Donald A. Horneck, Robert G. Stevens, Jason W. Ellsworth, Dan M. Sullivan | Aug 2007 | Extension Catalog publication Peer reviewed (Orange level)

Apr 2018

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