Nutrient & Waste Management Resources

Troy Downing, OSU Extension Dairy faculty (503) 842-5708 x 211 

(If the link to an article or publication is not available, contact Troy Downing for a reprint)

Journal Publications dairy manure holding tank

Downing, T. and S. Angima. 2009.  Nitrogen cycling on pasture based dairy farms.  The Professional Animal Scientist. 25:99-103. 

Downing, T. 2008.  Developing a system to track nitrogen cycling on pasture-based dairies. NACAA Journal.  July, 2008.  

Downing, T.  2008.  Impact of manure application timing in dairy pastures on the migration of nitrates to groundwater. The Professional Animal Scientist. 24:1 pg 100-103.

Downing, T., P. French, A. Peters, and K. Higgs. 2007.  Convincing Oregon's dairy industry they have a problem with phosphorus.  Journal of Extension Vol 45, no.3. 


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