Powell, J.M., Broderick, G.A., Grabber, J.H., Hymes Fecht, U.C. 2009. Effects of Forage Protein-Binding Polyphenols on Chemistry of Dairy Excreta. Journal of Dairy Science. 92:1765-1769.
Powell, J.M., Russelle, M.P. 2008. Dairy Cattle Management Impacts Manure Nitrogen Collection and Cycling Through Crops [abstract]. American Society of Agronomy Abstracts. Abstract No. P45677.
Gourley, C.P., Powell, J.M. 2007. Nutrient Management Approaches and Tools for Dairy farms in Australia and the USA. Proceedings of Babcock Institute Technical Workshop. Babcock Technical Bulletin 2007-04. Available at://babcock.cals.wisc.edu/publications/display.lasso?
Powell, J.M., Misselbrook, T.H., Casler, M.D. 2008. Season and Bedding Impacts on Ammonia Emissions from Tie-stall Dairy Barns. Journal of Environmental Quality. 37:7-15.
Powell, J.M. 2007. Implications of nutrient management data collected on Wisconsin dairy farms. In: Chapman, D.F., Clark D.A., Macmillan,K.L. and Nation, D.P., editors. Meeting the Challenges for Pasture-Based Dairying. Proceedings of the Australian Dairy Science Symposium, September 18-20, 2007, University of Melbourne, Victoria, Australia. p. 593-599.
Powell, J.M. 2007. Cow diet and management impact nutrient losses from dairy farms. In: Chapman, D.F., Clark, D.A., Macmillan K.L. and Nation, D. P., editors. Meeting the Challenges for Pasture-Based Dairying. Proceedings of the Australian Dairy Science Symposium. 18-20 September, 2007. University of Melbourne, Victoria, Australia. p. 136-141.
Gourley, C.J.P., Aarons, S.R., Powell, J.M., Dougherty, W.J., Weaver, D.M. 2007. Revising the paradigm for improved nutrient management on Australian dairy farms. In: Chapman, D.F., Clark, D.A., Macmillan, K.L., and Nation, D.P., editors. Meeting the Challenges for Pasture-Based Dairying. Proceedings of the Australian Dairy Science Symposium. 18-20 September, 2007. University of Melbourne, Victoria, Australia. p. 562-569.
Fortuna, A., Honeycutt, C.W., Marsh, T.L., Griffin, T.S., Larkin, R.P., He, Z., Wienhold, B.J., Sistani, K.R., Albrecht, S.L., Woodbury, B.L., Torbert Iii, H.A., Powell, J.M., Hubbard, R.K., Eigenberg, R.A., Wright, R.J. 2007. Linking Process Level Function and Beta-ammonia Oxidizer Community Dynamics Across Varying Soils Following Manure Application. Ecological Society of America Abstracts. 2007 CD-ROM.
Powell, J.M., Misselbrook, T.H., Holmes, B.J. 2007. Design and Calibration of Chambers for Measuring Ammonia Emissions from Tie-stall Dairy Barns. Transactions of the ASABE. 50(3):1045-1051.
Wu, Z., Powell, J.M. 2007. Dairy Manure Type, Application Rate and Frequency Impact Plants and Soils. Soil Science Society of America Journal. 71(4):1306-1313.
Gourley, C.J., Powell, J.M., Dougherty, W.J., Weaver, D.M. 2007. Nutrient budgeting as an approach for improving nutrient management on Australian dairy farms. Australian Journal of Experimental Agriculture. 47(9):1064-1074.
Fortuna, A., Honeycutt, C.W., Marsh, T.L., Griffin, T.S., Larkin, R.P., He, Z., Wienhold, B.J., Sistani, K.R., Albrecht, S.L., Woodbury, B.L., Torbert Iii, H.A., Powell, J.M., Hubbard, R.K., Eigenberg, R.A., Wright, R.J. 2006. Towards National Prediction of Manure N Availability: Soil Influence on Nitrifier Community and Nitrification. American Society of Agronomy Abstracts. November 12-16, 2006, Indianapolis, Indiana. 2006 CD-ROM.
Powell, J.M., Jackson-Smith, D.B. 2006. How good is nutrient management data collected on Wisconsin dairy farms? American Society of Agronomy Abstracts. Available: http://a-c-s.confex.com/crops/2006am/techprogram/P26434.HTM.
Powell, J.M., Wattiaux, M.A., Broderick, G.A., Moreira, V.R., Casler, M.D. 2006. What Dairy Cows are Fed Impacts Manure N Excretions and Cycling in Soils. American Society of Agronomy Abstracts. Available: http://a-c-s.confex.com/crops/2006am/techprogram/P26446.HTM
Cusick, P.R., Kelling, K.A., Powell, J.M., Munoz, G.R. 2006. Estimates of residual dairy manure n availability using various techniques. Journal of Environmental Quality. 35:2170-2177.
Powell, J.M. 2006. A review of research needs for dairy shed effluent management. State of Victoria, Department of Primary Industries. Ellinbank, Victoria, Australia. 26 p.
Powell, J.M., Knowlton, K.F., Russelle, M.P., Hanigan, M.D. 2006. Manure nitrogen transformations in air, soil and crops on dairy farms. In: Proceedings of Transforming Forages to Improve Nitrogen Use by Dairy Cows and Decrease Nitrogen Emissions, Dairy Science Society of America Annual Meetings, July 9-13, 2006, Minneapolis, Minnesota. Abstract 623.
Powell, J.M., Jackson-Smith, D.B., McCrory, D.F., Saam, H., Mariola, M. 2006. Validation of feed and manure data collected on Wisconsin dairy farms. Journal of Dairy Science. 89:2268-2278.
Powell, J.M., Jackson-Smith, D.B. 2006. Where and how much manure is land-spread on Wisconsin dairy farms. In: Silage for Dairy Farms: Growing, Harvesting, Storing, and Feeding. Natural Resources, Agriculture, and Engineering Service (NRAES), January 23-25, 2006, Harrisburg, Pennsylvania. p. 386-395.
Powell, J.M., Jackson-Smith, D.B. 2006. Ability of Wisconsin dairy farmers to conform to 590 nutrient management standards. In: Proceedings of the 2006 Wisconsin Fertilizer, Aglime & Pest Management Conference, January 17-19, 2006, Madison, Wisconsin. p.139-145.
Powell, J.M., Misselbrook, T.H. 2006. Reducing in-barn ammonia emissions to conserve the fertilizer nitrogen value of dairy manure. In: Proceedings of the 2006 Wisconsin Fertilizer, Aglime & Pest Management Conference, January 17-19, 2006, Madison, Wisconsin. p. 211-215.
Powell, J.M., Wattiaux, M.A., Broderick, G.A., Moreira, V.R., Casler, M.D. 2006. Dairy diet impacts on fecal chemical properties and nitrogen cycling in soils. Soil Science Society of America Journal. 70:786-794.
Powell, J.M. 2006. Enhanced use of feed and manure nutrients in animal agriculture. In: Visions for Animal Agriculture and the Environment. The John M. Airy Beef Cattle Symposium, January 5-6, 2006, Kansas City, Missouri. Available: www.iowabeefcenter.org/content/Airy/POWELL%20Abstract.pdf
Powell, J.M., Misselbrook, T., Broderick, G.A. 2006. Abating ammonia emissions from dairy barns through feed, herd and bedding management. In: Proceedings of Workshop on Agricultural Air Quality: State of Science, June 5-8, 2006, Raleigh, North Carolina. p. 1006-1010.
Griffin, T.S., Honeycutt, C.W., Albrecht, S.L., Hubbard, R.K., Powell, J.M., Sistani, K.R., Torbert III, H.A., Wienhold, B.J., Woodbury, B.L. 2005. Standardizing aerobic incubation methods: is it possible?. American Society of Agronomy Abstracts. ON CD
Li, Y., McCrory, D.F., Powell, J.M., Saam, H., Jackson-Smith, D.B. 2005. Heavy metal concentrations in dairy feed: a survey of heavy metal concentrations in Wisconsin dairy feeds. Journal of Dairy Science. 88:2911-2922.
Powell, J.M. 2005. Dairy herd management impacts on manure nitrogen cycling.
In Proc. of the 2005 Wisconsin Fertilizer, Aglime & Pest Management Conference, January 18-20, 2005, Madison, WI. p. 271-273.
Powell, J.M., E. Taylor-Powell, R. Klemme, T. Johnson, L. Bruss, and T. Misselbrook. 2005. Partnership for abating ammonia emissions from dairy farms: Using a logic model to build consensus and joint work. Proceedings for the State of the Science - Animal Manure and Waste Management Symposium, January 5-7, 2005, San Antonio, Texas. http://www.cals.ncsu.edu/waste_mgt/natlcenter/sanantonio/proceedings.htm
http://www.cals.ncsu.edu/waste_mgt/natlcenter/sanantonio/proceedings.htm. p. 39.
J.M. Powell, D. McCrory, D. Jackson-Smith and H. Saam. 2005. Environmental policy and factors that impact manure management on Wisconsin dairy farms. Proceedings for the State of the Science - Animal Manure and Waste Management Symposium, January 5-7, 2005, San Antonio, Texas. http://www.cals.ncsu.edu/waste_mgt/natlcenter/sanantonio/proceedings.htm
http://www.cals.ncsu.edu/waste_mgt/natlcenter/sanantonio/proceedings.htm.
Jackson-Smith, D., J.M. Powell, D. McCrory, and H. Saam. 2005. Understanding manure management behavior on Wisconsin dairy farms: lessons from recent on-farm research. In: Proceedings for the State of the Science - Animal Manure and Waste Management Symposium, January 5-7, 2005, San Antonio, Texas. http://www.cals.ncsu.edu/waste_mgt/natlcenter/sanantonio/proceedings.htm. Paper 57.
Powell, J.M and L.D. Satter. 2005. Dietary phosphorus levels for dairy cows. Best management practices for agricultural phosphorus. Four-Page fact sheet. SERA-17. Organization to Minimize Phosphorus Losses from Agriculture. http://www.sera17.ext.vt.edu/Documents/BMP_dietary_phosphorus.pdf
Powell, J.M. 2005. Contributions to society: manure-fertilizer/fuel, developed countries. In: Pond, W.G., Bell, A.W., editors. Encyclopedia of Animal Science. New York, NY: Marcel Dekker, Inc. p. 254-257.
Misselbrook, T.H., Powell, J.M., Broderick, G.A., Grabber, J.H. 2004. Reducing ammonia losses from dairy manure application to soil through dietary manipulation [abstract]. American Society of Agronomy. Paper No. 4522.
Saam, H., Powell, J.M., McCrory, D.F., Jackson-Smith, D.B. 2004. Balancing cropland and livestock on Wisconsin dairy farms [abstract]. American Society of Agronomy. Paper No. 5417.
McCrory, D.F., Saam, H., Powell, J.M., Jackson-Smith, D.B., Rotz, C.A. 2004. Predicting the number of suitable days for manure spreading across Wisconsin [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Paper No. 6277.
Bundy, L.G., Studnicka, J.S., Powell, J.M. 2004. Manure handling and extraction procedure effects on determination of water-extractable phosphorus in manures [abstract]. American Society of Agronomy. Paper No. 4522.
Powell, J.M., Satter, L.D., Misselbrook, T.A. 2004. Ammonia production and loss from dairy farms. Integrated pest & crop management. Dairy manure and air quality:the issues. Available: http://ipcm.wisc.edu/pubs/nutrient/Manure-AQ.htm.
Powell, J.M., Ketterings, Q., Rasmussen, C., Adams, L.N., Albrecht, G., Czymmek, K., Rotz, A., Muck, R.E., Norman, J., Stangel, B. 2004. Whole-farm nutrient management on dairy farms to improve profitability and reduce environment impacts. Cornell University Crop and Soil Sciences Research Series R04-1 and University of Wisconsin Extension Publication A3794.
Saam, H., J.M. Powell, D.B. Jackson-Smith, W.L. Bland, and J.L. Posner. 2005. Exploring the use of animal density standards for nutrient management policy on Wisconsin dairy farms. Agric. Syst., 84:343-357.
POWELL, J.M., KETTERINGS, Q., ADAMS, L., RASMUSSEN, C. A COMPARATIVE STUDY OF NUTRIENT MANAGEMENT TOOLS FOR DAIRY FARMS IN NEW YORK, WISCONSIN AND ELSEWHERE. MEETING ABSTRACT. 2003.
Powell, J.M., Mccrory, D., Saam, H., Jackson-Smith, D.B. 2003. Efficiency of manure recovery and land-spreading on wisconsin dairy farms. In: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America Annual Meeting Abstracts, November 2-6, 2003, Denver, CO. 2003 CDROM.
Munoz, G.R., Kelling, K.A., Powell, J.M., Speth, P.E. 2004. Comparison of estimates of first-year dairy manure n availability or recovery using 15n and other techniques. Journal of Environmental Quality. 33:719-727.
Mccrory, D., Powell, J.M., Jackson-Smith, D., Saam, H., Li, Y. 2004. Heavy metal loading rates on soils of wisconsin dairy farms. In: Sustainable Land Application Conference, January 4-8, 2004, Buena Vista, Florida. p.112.
Li, Y., Mccrory, D., Powell, J.M., Saam, H., Jackson-Smith, D. 2004. Heavy metal concentration in manure on wisconsin dairy farms. In: Sustainable Land Application Conference, January 4-8, 2004, Buena Vista, Florida. p.111.
Powell, J.M., Kelling, K. 2003. 15n labeling and use of dairy manure components for N cycling studies. In: Proceedings of the Sustainable Land Application Conference, January 4-8, 2004, Buena Vista, Florida. p.117.
ADAMS, L., POWELL, J.M., BRODERICK, G.A., SATTER, L. WHOLE-FARM NUTRIENT MANAGEMENT ON DAIRY FARMS: THE DIET CONNECTION. cd-rom. Madison, WI.: University of Wisconsin-Madison. 2003.