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Baseline Soil Nitrogen Mineralization: Measurement and Interpretation

Baseline N mineralization refers to plant-available nitrogen release that accompanies the decomposition of soil organic matter. The rate of baseline soil N mineralization is governed by the quantity and quality of ...

Dan M. Sullivan, Amber Moore, Betsy Verhoeven, Linda Brewer | Jun 2023 | Extension Catalog publication Peer reviewed (Orange level)

Acidifying Soil in Landscapes and Gardens East of the Cascades

Explains the importance of soil pH to plant growth, shows symptoms of plants growing in soil with high pH, and discusses how to modify soil to help maples, rhododendrons, blueberries, fruit trees, and other acid-loving plants thrive in your garden and landscape.

Kerry Locke, Donald A. Horneck, John M. Hart, Robert G. Stevens | Jul 2021 | Extension Catalog publication Peer reviewed (Orange level)

Irrigation Monitoring Using Soil Water Tension

This publication discusses the use of granular matrix sensors (GMS) for monitoring soil moisture content. It explains how to install GMS and use the recorded data for irrigation scheduling.

Clinton Shock, Feng-Xin Wang, Rebecca Flock, Erik Feibert, Cedric A. Shock, Andre Pereira | Jul 2021 | Extension Catalog publication Peer reviewed (Orange level)

A Guide to Collecting Soil Samples for Farms and Gardens

Laboratory soil tests help you develop your soil and increase crop production by providing information on available nutrient content. Soil testing helps you select the correct kind and amount of fertilizer and ...

Melissa Fery, Jeff Choate, Elizabeth Murphy | Nov 2022 | Extension Catalog publication Peer reviewed (Orange level)

Dirt Gone Bad Presentation Deck

Presentation used during webinar.

Master Gardener™

Dirt gone bad: webinar recording

Persistent herbicides sometimes make their way into the regional composting system. Unsuspecting gardeners then purchase herbicide contaminated compost and soil mix leading to plant damage. Learn how to recognize the damage, what to do about it, and how to avoid the problem. Also learn how to use compost in your vegetable garden, landscape, and lawn. Avoid problems from over applying compost.

Master Gardener™