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Troy Downing

Emeritus Appointment
troy.downing [at]

The majority of my work involves manure management, pasture productivity and nutrient cycling. Much of the work has looked at nutrient cycling in pasture systems, developing techniques to document nutrient utilization and variety trails to determine varieties with improved performance. Additional work has involved cooper and phosphorus management on dairies and fiber digestibility in cool season grasses.

OSU Extension Service
Tillamook County
4506 3rd St. Tillamook, OR 97141


Affiliated with: 
Animal & Rnglnd Sciences
I accept graduate students for Animal and Rangeland Sciences Department

Professional Accomplishments


M.S. Animal Science, University of Nevada, Reno, 1990

B.S. Animal Science, Cal State, Chico, 1986

My Publications


Journal Article

J. M. Hart, Sullivan, D. M., Gamroth, M. J., Downing, T., and Peters, A., Silage corn: western Oregon, Extension Service, Oregon State University, 2009.


Journal Article

Outreach and Extension