Postharvest Soil Nitrate Testing for Manured Grass and Silage Corn (West of the Cascades)

Dan M. Sullivan, Craig G. Cogger, Andy I. Bary, Shabtai Bittman and Linda Brewer
EM 8832 | Revised March 2023, Reviewed 2023

Summary

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.

About the authors

Craig G. Cogger
Extension soil scientist (emeritus)
Washington State University
Andy I. Bary
Senior scientific assistant
WSU Puyallup Research and Extension Center
Shabtai Bittman
Research scientist
Agriculture and Agri-Food Canada

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