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

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Doug Collins, Carol A. Miles, Craig G. Cogger and Richard T. Koenig
PNW 646 | Revised July 2013

Summary

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. While the primary focus is on building and maintaining fertile soil, information about how to protect soil and water resources in this context is included.

About the authors

Doug Collins
Small Farms Extension Specialist
Center for Sustaining Agriculture and Natural Resources, WSU Puyallup
Carol A. Miles
Vegetable Extension Specialist
Department of Horticulture, WSU Mount Vernon
Craig G. Cogger
Soil Scientist and Extension Specialist
Department of Crop and Soil Sciences, WSU Puyallup
Richard T. Koenig
Soil Scientist and Director of Extension
WSU Pullman

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