Jim Jensen , Dr. Craig Frear , Dr. Jingwei Ma , Chad Kruger , Rita L. Hummel , Georgine Yorgey , WSU Fact Sheet FS235E. November 2016. This publication describes the composition and separation process for fibrous solids that result from the digestion of dairy manures. It also reviews both current and future potential uses of fiber. This fact sheet is part of the AD Systems Series.
Kennedy, N., G. Yorgey, C. Frear, and C.E. Kruger. July 2016. WSU Fact Sheet EM088E. This publication discusses the impacts of incorporating co-digestion at dairy-based anaerobic digesters. That is, mixing manure with non-manure waste in anaerobic digesters. This information is based on stakeholder perspectives and a literature review of infrastructure, operational upgrades, and related costs and revenues when non-manure wastes are added to dairy digesters. This fact sheet is part of the AD Systems Series.
S. M. Mitchell, N. Kennedy, J. Ma, G. Yorgey, C. Kruger, J. L. Ullman, C. Frear. Sept 2015. WSU Fact Sheet FS171E. This fact sheet reviews the basic elements of anaerobic digestion and the process used by digesters, including the types of digesters, biochemistry of influents and effluents, laboratory evaluations and optimizing anaerobic digesting through modeling. This fact sheet is part of the AD Systems Series.
N. Kennedy, G. Yorgey, C. Frear, C. Kruger 2015. WSU Fact Sheet FS172E. This publication focuses on pre-consumer food wastes that can sustainably be used as substrates for co-digestion with dairy manure and increase the value of co-products. Topics covered include complementary and problematic substrates, the substrate procurement process, regulations, and solutions for co-digestion processing issues. This fact sheet is part of the AD Systems Series.
N. Kennedy, G. Yorgey, C. Frear, D. Evans, J. Jensen, C. Kruger. 2015. WSU Fact Sheet FS180E. This fact discusses the chemical composition of renewable natural gas, the most appropriate end-use options for dairy digesters, and some of the more common techniques used to clean biogas to RNG quality at dairy digesters. This fact sheet is part of the AD Systems Series.
Technology Research and Extension Related to Anaerobic Digestion of Dairy Manure, 2013-2015 biennium
Chen, S., C. Frear, M. Garcia-Perez, C. Kruger, A. Abghari, P. Ai, N. Abu-Lail, G. Astill, I. Dallmeyer, M. Flury, A. Fortuna, A. Gao, J. Garcia-Nunez, R. Ghoghare, J.B. Harsh, H. Iqbal, J. Jensen, N Kennedy, J. Ma, S. Mitchell, M. Smith, W. Suliman, D. Wang, G. Yorgey, L. Yu, Q. Zhao, S. Zhang, and T. Zhu. 2015. Washington State Department of Agriculture, Olympia, WA.
Chen, S., C. Frear, M. Garcia-Perez, J. Jensen, D. Sjoding, C. Kruger, N. Abu-Lail, G. Astill, I. Dallmeyer, M. Flury, A. Fortuna, J. Garcia-Nunez, S. Hall, J.B. Harsh, H. Iqbal, N Kennedy, J. Ma, S. Mitchell, B. Pecha, R. Pelaez-Smaniego, A. Seker, M. Smith, W. Suliman, G. Yorgey, L. Yu, and Q. Zhao. 2016. Publication 16-07-008. Washington Department of Ecology, Olympia, WA.
Modeling environmental change: A guide to understanding model results that explore the impacts of climate change on regional environmental systems
Allen, E., G. Yorgey, K. Rajagopalan, and C. Kruger. 2015. WSU Extension Fact Sheet FS159E.
Yorgey, G., C. Frear, C. Kruger, T. Zimmerman. 2014. WSU Extension Fact Sheet FS136E. This fact sheet is part of the AD Systems Series.
Yorgey, G., S. Kantor, K. Painter, H. Davis, and L. Bernacchi. 2014. Video and text farmer case study. Eric Odberg is a fourth generation farmer who practices no-till management and was an early adopter of variable rate nitrogen (VRN) application in the dryland production region of the Pacific Northwest.
Increasing resilience among cereal-based farmers in the Inland Pacific Northwest – Farmer to Farmer Case Studies
Yorgey, Georgine, Kathleen Painter, Hilary Davis, Kristy Borrelli, Sylvia Kantor, Leigh Bernacchi, R. Dennis Roe, Chad Kruger 2014. Video and print case studies part of REACCH PNA project. The goal of these case studies to inspire others to take management risks on their farms that can improve their overall sustainability and resiliency into the future. Future case studies are in progress and will focus on farmers who manage water in irrigated systems, tillage practices and residue management in unique ways.
BioEarth: Envisioning and developing a new regional earth system model to inform natural and agricultural resource management
Adam, J. C., J. C. Stephens, S. H. Chung, M. P. Brady, R. D. Evans, C. E. Kruger, B. K. Lamb, M. Liu, C. O. Stöckle, J. K. Vaughan, K. Rajagopalan, J. A. Harrison, C. L. Tague, A. Kalyanaraman, Y. Chen, A. Guenther, F. Leung, L. R. Leung, A. B. Perleberg, J. Yoder, E. Allen, S. Anderson, B. Chandrasekharan, K. Malek, T. Mullis, C. Miller, T. Nergui, J. Poinsatte, J. Reyes, J. Zhu, J. S. Choate, X. Jiang, R. Nelson, J. Yoon, G. G. Yorgey, K. Johnson, K. J. Chinnayakanahalli, A. F. Hamlet, B. Nijssen, and V. Walden. Climatic Change, 2014. (DOI) 10.1007/s10584-014-1115-2
Yorgey, G. 2014. Recorded webinar. Part of Pacific Northwest Agriculture and Climate Change Webinar Series available here: http://csanr.wsu.edu/webinars/pnw-ag-and-climate-change/ .
Yorgey, G. 2014. Recorded webinar. Part of Pacific Northwest Agriculture and Climate Change Webinar Series available here: http://csanr.wsu.edu/webinars/pnw-ag-and-climate-change/ . Flux Tower 3-minute video referenced in presentation.
Review of emerging nutrient recovery technologies for farm-based anaerobic digesters and other renewable energy systems
Prepared for Innovation Center for US Dairy by Jingwei Ma, Nick Kennedy, Georgine Yorgey and Craig Frear. Nov 2013. Washington State University.
Anaerobic Digestion Systems: Integrating emerging technologies to improve environmental and economic impact
C. Frear, C.Kruger, H. Collins, M. Garcia-Perez, C. Stockle, R. Shumway, G. Astill, T. Ewing, N. Kennedy, T. Khalil, and G. Yorgey. July 2013. Academic Poster.
Yorgey, G. 2013. Recorded webinar. Part of Pacific Northwest Agriculture and Climate Change Webinar Series available here http://csanr.wsu.edu/webinars/pnw-ag-and-climate-change/ .
Yorgey, G. 2012. Recorded webinar. Part of Pacific Northwest Agriculture and Climate Change Webinar Series available here http://csanr.wsu.edu/webinars/pnw-ag-and-climate-change/ .
Adam, J.C., Rajagopalan, K., Stockle, C.O., Kruger, C.E., Brady, M.P., Barber, M.E., Chinnayakanahalli, K.J., Yorgey, G.G., Nelson, R.L., Dinesh, S., Malek, K., Yoder, J., Chung, S., Vaughan, J.K., Leung, F., Lamb, B.K., Evans, R.D., Harrison, J., Stephens, J., Guenther, A., Kalyanaraman, A., Leung, L.R., Liu, M., Tague, C., Perleberg, A.B., Chen, Y., Norton, T.M., Jiang, X., & Zhu, J. (2012). BioEarth: A regional-scale earth system model to inform land and water management decisions. ASA-CSSA-SSSA International Annual Meeting, Cincinnati, OH.22 October 2012. The poster can be downloaded via link.
2012. Ecology Publication 12-12-001. The technical report is available for download by section, including appendices, at the bottom of the linked page.
2012. Ecology Publication 11-12-011.
Assessing the Impact of Climate Change on Columbia River Basin Agriculture through Integrated Crop Systems, Hydrologic, and Water Management Modeling
Rajagopalan, K., K. Chinnayakanahalli, J.C. Adam, C.S. Stockle, R. Nelson, M. Brady, M.E. Barber, S. Dinesh, K. Malek, G. Yorgey, C. Kruger, T. Marsh, and J. Yoder, 2011. AGU Fall Meeting Abstracts, San Francisco, CA, Dec. 6.
WSU Extension Fact Sheet FS040E. Yorgey, G., C. Kruger, K. Steward, C. Frear, & N. Mena. August 2011. This fact sheet is part of the AD Systems Series.
Western Rural Development Center’s Rural Connections Newsletter Climate Change issue June 2011 contains three articles written by CSANR faculty and staff members. View the entire issue here (6 MB), or view the individual articles by clicking the titles here: Anaerobic Digestion in the Pacific Northwest; Climate Change and Family Forest Landowners in the Pacific Northwest: Attitudes & Understanding; Climate Change and Agriculture in the Pacific Northwest.
Chapter 22 in Climate Friendly Farming: Improving the Carbon Footprint of Agriculture in the Pacific Northwest. Full report available at http://csanr.wsu.edu/pages/Climate_Friendly_Farming_Final_Report/.