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

Cover image of publication "Fertilizing with Biosolids"
PNW 508
Revised February 2015
Image of "Living on the Land: Got a Stream? Grow Plants!" publication
EC 1645
Published October 2014
Image of Toxic Blooms in Oregon Waters publication
EC 1631
Published July 2009
Cover image of "El dilema del fósforo"
EM 8939-S
Published January 2009