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Pesticides in Southern Willamette Valley Groundwater

Reviews recent studies of nitrogen contamination of groundwater in the southern Willamette Valley of Oregon from pesticide use. Finds no violation of drinking water standards, though many water samples contained traces...

John Selker | Apr 2004 | Extension Catalog publication Peer reviewed (Orange level)

Successful Potato Irrigation Scheduling

This publication discusses irrigation scheduling of potatoes using crop evapotranspiration and/or soil water tension.

Clinton Shock, Feng-Xin Wang, Rebecca Flock, Eric Eldredge, Andre Pereira | Jul 2021 | Extension Catalog publication Peer reviewed (Orange level)

Herbicide carryover in hay, manure, compost and grass clippings

Herbicides applied to pastures and some crops can persist in soil amendments like hay, manure, compost and grass clippings. Make sure your amendments are free of these herbicides before you contaminate your soil.

Mar 2010 | Article

Efficient Lawn Irrigation in the Intermountain West

Proper irrigation, despite being one of the most important factors in maintaining a healthy lawn, is the most often overlooked variable in lawn care. This publication describes common turfgrass species, soil water ...

Brian Charlton, Rob C. Golembiewski, Tom Cook | Oct 2010 | Extension Catalog publication Peer reviewed (Orange level)

Precision Agrilab

Producing quality results quickly is the primary objective at Precision Agri-Lab. To ensure accurate and precise data, we have implemented extensive quality control procedures. Daily QC procedures include running method blanks, duplicates, intra-laboratory control samples, and second source calibration verification samples.

Aug 2018 | Online resource

Irrigating pastures

Irrigating pastures can provide livestock with nutrition long into summer. Learn to monitor soil moisture to determine when to irrigate and how much water to apply.

Mylen Bohle | Jul 2007 | Article

As Russian thistle becomes resistant to glyphosate, OSU Extension weed scientist finds alternatives for wheat farmers

Russian thistle thrives in the dry climate of eastern Oregon and Washington and if left unchecked develops an extensive root system that competes with wheat for water and nutrients.

Kym Pokorny | Nov 2, 2021 | News story

Turfgrasses and lawn care in Eastern Oregon

Today, turfgrass is the single largest irrigated crop in the United States and covers three times the land area of any other cultivated crop. An estimated 40.5 million acres of grasses are planted in residential, commercial and...

Richard Smiley | Jan 2018 | Article

Irrigation Rates and Frequencies for Western and Eastern Oregon Turfgrass

When trying to minimize irrigation inputs, the best turfgrass species for the Oregon climate include perennial ryegrass (Lolium perenne) in Western Oregon, Kentucky bluegrass (Poa pratensis) in Central/Eastern Oregon and...

Alyssa Cain, Alec Kowalewski, Brian McDonald, Clint Mattox | Jan 2021 | Extension Catalog publication Peer reviewed (Orange level)

Best Management Practices for Managing Herbicide Resistance

Learn to manage herbicide-resistant weeds on your farm using the most effective methods, also known as best management practices (BMPs).

Drew J. Lyon, Judit Barroso, Joan Campbell, Doug Finkelnburg, Ian C. Burke | Dec 2020 | Extension Catalog publication Peer reviewed (Orange level)