Research-based educational materials about Soil and Water from the OSU Extension Catalog

this is the cover for EM 9217, Interpreting Compost Analyses
EM 9217
Published October 2018
This is the cover of Living on the Land: Soil Health Principles
EC 1647
Published October 2015
Cover image of publication "Fertilizing with Biosolids"
PNW 508
Revised February 2015