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Alfalfa soil fertility and fertilization requirements

A productive alfalfa crop removes significant quantities of macronutrients and small amounts of micronutrients from the soil (Table 1). A complete fertilizer program is essential to ensure a highly productive, long-lived stand.

David Hannaway, Mylen Bohle, Daniel Miles, Yitian Lin, Brianna Randow | Sep 2019 | Article

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

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

OSU scientist helps war-torn island plan for future tsunamis

Jay Noller, a soil scientist from Oregon State University, is mapping evidence of tsunamis on war-torn Cyprus and helping the divided governments plan for a shared future.

Peg Herring | Apr 13, 2005 | News Story

Will glyphosate poison us or our pets?

Q: We live in a large condominium between NW Naito Parkway and the Willamette River. Our property extends to the banks of the river. Our landscaper has been using a diluted version of glyphosate to control weeds on the ...

A: View answer | View all featured questions

Irrigating Pastures

As summer approaches and the soil dries, forage plants become dormant. Some years in drier areas of Oregon dormancy may begin in the late spring. If you have irrigation rights, your pastures can provide supplemental nutrition ...

Mylen Bohle | Jul 2007 | Article

Incorporating Grains into a Whole Farm

How to properly incorporate grains into an entire farm. Includes suggestions for rotations on various types of farms.

Sep 2018 | Article

Weed management for blueberry fields in the Pacific Northwest

Weeds are always a difficult problem in blueberry production! They start to show up shortly after transplanting, and tend to become more problematic as time goes on. There are, however, strategies that help to control weeds in...

Tim Miller | Mar 2015 | Article