A soil nitrate test measures the concentration of nitrate in the soil at a specific moment in time, including nitrate originating from organic inputs, fertilizer, and soil organic matter. This publication describes ...
Dan M. Sullivan, Nick Andrews, Aaron Heinrich, Ed Peachey, Linda Brewer |
Aug 2023 |
Extension Catalog publicationPeer reviewed (Orange level)
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.
Dan M. Sullivan, Craig G. Cogger, Andy I. Bary, Shabtai Bittman, Linda Brewer |
Mar 2023 |
Extension Catalog publicationPeer reviewed (Orange level)
This guide can serve as a starting point for development of nutrient management guidelines for Oregon growers. Recommendations in this guide are based on research performed in the Willamette Valley with other ...
Jim Owen, Dan M. Sullivan, Donald A. Horneck, John M. Hart |
Oct 2010 |
Extension Catalog publicationPeer reviewed (Orange level)
Whether you have one or several, or plan to plant your first fruit tree, it’s time to give them the attention needed to keep them healthy and bearing fruit.
Kym Pokorny |
Jan 27, 2023 |
News story
Photo Credit: evgenyb - Adobe Stock (Cropped from original)
There are lots of gardening tasks to complete in April, including fertilizing your lawn and preparing soil and raised garden beds. Learn more in this guide.
Fruit trees like apples, pears and prunes generally need fertilizer. Learn how to match your orchard's needs with the macronutrients the soil can provide.
Cherry growers have many options when it comes to choosing rootstocks. The combination of new dwarfing rootstocks with high-density training systems leads to earlier production. But growers need to consider soil ...
For Oregon gardeners, May is a busy month. It's time to check soil temperatures, establish irrigation systems, and to start planting flowers and vegetables. Learn more in this guide.