Search OSU Extension

Showing 1 - 10 of 18 results.

Christmas Tree Nutrient Management Guide for Western Oregon and Washington

A comprehensive guide to fertilization and nutrient management in Christmas tree fields. Discusses tree nutrient use at various stages in the crop cycle and explains how to use soil and tissue testing to determine fertilizer ...

Brad Withrow-Robinson, Chal Landgren, Michael Bondi | Sep 2009 | OSU Extension Catalog

Is a dog latrine a bad place to grow vegetables?

Q: I'm very concerned about the health hazards of eating food grown in the beds where a dog has pooped. At this point, I could build a fence around the whole garden to stop any further damage, but I'm wondering about the ...

A: View answer | View all featured questions

Nitrogen-fixing trees “eat” rocks, play pivotal role in forest health

By tapping nutrients from bedrock, red alder trees play a key role in healthy forest ecosystems.

Chris Branam | Feb 25, 2019 | News Story

Trees and Shrubs for Erosion Control

A list of recommended trees and shrubs in Oregon, good for controlling erosion.

Jul 2018 | Collection

Managing Manganese Deficiency in Nursery Production of Red Maple

Discusses the processes of manganese (Mn) reaction in the soil, Mn movement in plants, Mn function in plants, results of studies of Mn in Oregon nursery fields, and management practices to prevent Mn deficiency in field-grown ...

Mar 2006 | OSU Extension Catalog

Fertilizing Shade and Ornamental Trees

Describes how to identify signs of nutrient deficiency in shade and ornamental trees. Discusses the most common soil nutrient deficiencies, types of fertilizer, and fertilization techniques. Offers a simple method, based on tree trunk diameter, for determining how much fertilizer to use.

Aug 2000 | OSU Extension Catalog

Growing Christmas Trees in the Pacific Northwest

A guide for the prospective and novice Christmas tree grower. Includes how to evaluate risk and potential for return. Discusses the tree growing cycle, tasks and time requirements, pertinent laws and regulations, and costs, ...

Chal Landgren, Michael Bondi | Jun 2003 | OSU Extension Catalog

Streamside planting zones

Describes the three planting zones around a stream.

Jul 2018 | Article

Oregon Ash

Information on the Oregon Ash (Fraxinus latifolia).

Jul 2018 | Article

Ponderosa Pine

Information on the Ponderosa pine, or western yellow pine (Pinus ponderosa).

Jul 2018 | Article