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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 also explained. ...

Jul 2013 | OSU Extension Catalog

Alfalfa soil fertility and fertilization requirements

A productive alfalfa crop removes significant quantities of macronutrients and small amounts of micronutrients from the soil (Table 1). A complete fertilizer program is essential to ensure a highly productive, long-lived stand.

David Hannaway, Mylen Bohle, Daniel Miles, Yitian Lin, Brianna Randow | Sep 2019 | Publication

Composting at Winter Green Farm Improves Soil Health and Protects Water Quality

In 1980 Jack Gray and Mary Jo Wade started Winter Green Farm just 20 miles west of Eugene, five years later Wali and Jabrila Via joined them and in 2009 long-time employees Chris Overbaugh and Shannon Shipp-Overbaugh also ...

Nick Andrews | Jul 2013 | 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

Estimating Nitrogen Mineralization in Organic Potato Production

Describes a "crop N uptake" method for estimating N mineralization from soil organic matter. Crop N uptake is a site-specific indicator of N that is "available" to the crop.

Dan Sullivan | Jan 2008 | OSU Extension Catalog

Organic Small Grain Production in the Inland Pacific Northwest: A Collection of Case Studies

Organic farming can be a challenge anywhere, but the obstacles encountered by Inland Pacific Northwest organic small grain farmers are unique. Their options for managing weeds and soil nutrients are few, and the limitations of ...

Jul 2016 | OSU Extension Catalog