Craig G. Cogger

Scientist / Extension Specialist

2606 W. Pioneer Ave.
Puyallup WA 98371-4998 USA
Phone 253-445-4512
FAX 253-445-4569

Curriculum Vitae, February 2015 (pdf)

B.A., Bowdoin College 1972 M.S., Ph.D., Cornell University, 1975, 1979

Organic nutrient management; organic farming systems; use of animal manure, biosolids, and composts in agriculture and urban landscapes; soil quality, food  safety, greenhouse gases in agriculture. Read more.

Nutrient management, sustainable agriculture, Master Gardener education, composting, use of organic amendments, climate change, food safety, ground water protection, soils for septic system professionals.

Related Page

Research Publications
Mitchell, S.M., J.L. Ullman, A. Bary, C.G. Cogger, A.L. Teel, and R.J. Watts. 2015. Antibiotic degradation during thermophilic composting. Water Air Soil Pollut. (in Press)

Wayman, S. C. Cogger, C. Benedict, I. Burke, D. Collins, and A. Bary. 2014. The influence of cover crop variety, termination timing, and termination method on mulch, weed cover, and soil nitrate in reduce-tillage organic systems. Renewable Agric Food Sys. doi: 10.1017/S1742170514000246

Hummel, R.L., C. Cogger, A. Bary, and R. Riley. 2014. Marigold and pepper growth in container substrates made from biosolids composted with carbon-rich organic wastes. Hort Tech 24:325-333.

Cogger, C.G., A.I. Bary, E.A. Myhre, and A. Fortuna. 2013. Long-term crop and soil response to biosolids applications in dryland wheat. J. Environ. Qual. 42:1872-1880. doi:10.2134/jeq2013.05.0109

Cogger, C.G., A.I. Bary, A.C. Kennedy, and A. Fortuna. 2013. Biosolids applications to tall fescue have long-term influence on soil nitrogen, carbon, and phosphorus. J. Environ. Qual. 42:516-522. doi:10.2134/jeq2012.0269

Saunders, O., A. Fortuna, J.H. Harrison, C. Cogger, E. Whitefield, and T. Green.  2012. Gaseous nitrogen and bacterial responses to raw and digested dairy manure applications in incubated soil. Environ. Sci. Technol. 46:11684−11692.

Saunders, O., A.  Fortuna, J.H. Harrison, E. Whitefield, C. Cogger, A. Kennedy, and A.I.  Bary. 2012. Comparison of raw dairy  manure slurry and anaerobically digested slurry as N sources for grass forage  production. Internat. J. Agron.  doi:10.1155/2012/101074.

Lawson, A., A. Fortuna, *C.G. Cogger, A.I. Bary, and T.L Stubbs. 2012. Nitrogen contribution of rye-hairy vetch  cover crop blends to organically grown sweet corn. Renewable Agric Food Sys. doi:10.1017/S1742170512000014.

Brown, S., K. Kurtz, A. Bary, and *C. Cogger. 2011. Quantifying benefits associated with land  application of residuals in Washington State.  Env. Sci. Tech. 45:7451–7458.

Cogger, C.G.,  A.I. Bary, and E.A. Myhre. 2011. Estimating nitrogen availability of  heat-dried biosolids. Applied Environ.  Soil Sci. doi:10.1155/2011/190731.

Koenig, R.T., C.G. Cogger, and A.I. Bary. 2011. Dryland winter wheat yield, grain protein  and soil nitrogen responses to fertilizer and biosolids applications. Applied Environ. Soil Sci. doi:10.1155/2011/925462.

Collins, D.P., *C.G. Cogger, A.C. Kennedy, T. Forge, H.P. Collins, A.I. Bary, and R. Rossi. 2011. Farm-scale variation of soil quality indices  and association with edaphic properties.  Soil Sci. Soc. Am. J. 75:580-890.

Pritchett, K., A.C. Kennedy, and *C.G. Cogger. 2011. Management effects on soil  quality in organic vegetable systems in western Washington. Soil Sci. Soc. Am. J. 75:605-615.

More publications (pdf)

Research cultivates seeds of opportunity
Research cultivates seeds of opportunity


PULLMAN, Wash. – The grain-like seed crop quinoa (pronounced KEEN-wah) has grown in popularity and likely will be grown more widely in the Pacific Northwest, thanks to a $1.6 million U.S. Department of Agriculture grant recently awarded to Washington State University researchers. . .   Traditional quinoa producing countries like Bolivia, Chile, Ecuador and Peru are not keeping up with U.S. demand, said Kevin Murphy, lead scientist and plant breeder for the WSU project.  Read more



Craig Cogger, Washington State University, Leader in Loop Biosolids Recycling

Craig Cogger Green Globe Award winner
Craig Cogger Green Globe Award winner

As a soil scientist with Washington State University, Craig Cogger has
been helping King County’s Loop biosolids program make sound,  evidence-based decisions for more than two decades. Cogger worked to  develop nationwide guidelines for biosolids nutrient management, both to  prevent runoff and to meet the nutrient requirements of the crop,  documenting the significant benefits of biosolids recycling, including  improved soil nutrients, crop quality, production economics, soil
quality, and carbon sequestration.