Soil Acidity in Oregon: Understanding and Using Concepts for Crop Production

John M. Hart, Dan M. Sullivan, Nicole Anderson, Andy Hulting, Donald A. Horneck and Neil W. Christensen
EM 9061 | Published July 2013, Reviewed 2021


Soil acidity, expressed by low soil pH, causes reduced crop growth and significant economic loss. It is the most commonly overlooked and poorly understood yield-limiting factor in western Oregon and a developing concern in eastern Oregon. This publication describes the concept of soil acidity and the limitations it causes for crop production.

About the authors

John M. Hart
Extension soil scientist emeritus
Oregon State University
Donald A. Horneck
Extension agronomist
Oregon State University
Neil W. Christensen
Professor of soil science emeritus
Oregon State University

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