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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

How to make your own potting soil

Soil straight from your backyard just won’t do the job.

Feb 17, 2012 | News Story

Is charcoal a good soil amendment?

Q: Do you have published, current, projected , research in the effects of charcoal amendment to agricultural soils/forest soils?

A: View answer | View all featured questions

Are ashes good for my soil?

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

A: View answer | View all featured questions

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 | Article

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

Add organic matter to improve garden soils

Adding organic matter is the best way to improve nearly all kinds of soils.

Feb 27, 2009 | News Story

Salty solution? Is beach sand useful for my soil or landscaping?

Q: I'd like to mix more sand into my soil to help break up the clay. If I collect sand from an ocean beach, should I be worried about too much salt in the sand and it impacting my soil? If I were to use the ...

A: View answer | View all featured questions

Rebuild garden soil with application of lime, gypsum

If home garden production seemed a bit off this year, your garden soil may need help. Rebuild it with an application of lime or gypsum. Liming garden soils west of the Cascades helps the soil in many ways, said Jan ...

Feb 19, 2003 | News Story

Bareroot Shade, Flowering, and Fruit Trees (Willamette Valley) Fertilizer Guide

This guide can serve as a starting point for development of nutrient management guidelines for Oregon growers. Recommendations in this guide are based on research performed in the Willamette Valley with other cropping systems and ...

Dan Sullivan | Oct 2010 | OSU Extension Catalog