Most Christmas tree growers fertilize with nitrogen (N) intending to improve tree color, growth, and ultimately value. Where does the fertilizer go after application? How much is actually taken up by the trees, stored in the ...
Chal Landgren, Michael Bondi, Steve Webster, Rick Fletcher |
Jul 1994 |
Article
Washington State University's program of Organic Farming Systems and Nutrient Management goal is to build soil productivity, support local agriculture, protect water quality, and facilitate recycling of organic wastes, by applying soil science principles to agricultural, development, and waste management issues.
Apr 2018 |
Online resource
Photo: Oregon State University (Cropped from original)
Poison oak plants contain a chemical that causes a severe rash. Learn how to spot a plant, safely remove, and clean your clothes, gear and skin afterward to prevent a rash.
Silage-making has been used to reduce the concentrations of toxins in a variety of crops. But in the case of poison hemlock, the opposite is true — making silage out of it actually increases one of its toxic alkaloids.
Tansy ragwort, an invasive weed that can harm certain types of livestock, is making a comeback in western Oregon. Find out how to control it and protect your animals.
Shelby Filley, Andy Hulting, Gene Pirelli, Eric Coombs |
Aug 2011 |
Article
This collection of links and publications are compiled information about managing nutrient levels in your pasture. This includes soil testing and assessment, application of fertilizers and minerals, and nutrient cycling in a forage pasture.
These publications are shared to teach farmers and agriculturalists how to properly control weeds and poisonous plants and pests. Handbooks and management fact-sheets are provided as well as a list of common pasture weeds, poisonous plants, and other pests that affect pastures.