Projects

Improving Dairy Forage and Manure Management to Reduce Environmental Risk Appropriated (D)   Accession Number: 412861

Improving Nutrient Digestibility to Enhance Forage Utilization in Lactating Dairy Cow Feeding Systems Appropriated (D)   Accession Number: 412604

Dairy Diet and Manure Management Impacts on Trace-Gas Emissions Specific Cooperative Agreement (S)   Accession Number: 412035

Trace-Gas Emissions from Dairy Production Systems Specific Cooperative Agreement (S)   Accession Number: 411334

Trace-Gas Emissions from Dairy Production Systems Using Dispersion Analysis Techniques Specific Cooperative Agreement (S)   Accession Number: 411332

Publications

Making the Most Out of Your Nutrients in Feed, Milk and Manure - (Popular Publication)

Powell, J.M., Gourley, C.J. 2009. Making the Most Out of Your Nutrients in Feed, Milk and Manure. Grass Clippings, 4(1): 1-6. 2009.

Dairy Cattle Management Impacts Manure N Collection and Cycling Through Crops - (Peer Reviewed Journal)

Powell, J.M., Russelle, M.P. 2009. Dairy Cattle Management Impacts Manure N Collection and Cycling Through Crops. Agriculture, Ecosystems and Environment [electronic journal]. 131 (2009): 170-177.

Cows Aren¿t Equal Opportunity Manure Spreaders - (Popular Publication)

Powell, J.M., Gourley, C.J. 2009. Cows Aren¿t Equal Opportunity Manure Spreaders. Hoard's Dairyman, January 2009. p. 54.

Ammonia Emissions from Dairy Production Systems in Wisconsin - (Peer Reviewed Journal)

Harper, L.A., Flesch, T.K., Powell, J.M., Coblentz, W.K., Jokela, W.E., Martin, N.P. 2009. Ammonia Emissions from Dairy Production Systems in Wisconsin. Journal of Dairy Science. 92:2326-2337.

Effects of Forage Protein-Binding Polyphenols on Chemistry of Dairy Excreta - (Peer Reviewed Journal)

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.

Corralling versus broadcasting dairy heifer manure: volatilization, leaching, and mineralizable N - (Abstract) - (25-Jun-08)

Dairy Cattle Management Impacts Manure Nitrogen Collection and Cycling Through Crops - (Abstract)

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.

Nationally Coordinated Research to Predict Manure Nitrogen Availability - (Abstract) - (03-Jun-08)

Rapid Assessment of Feed and Manure Management on Dairy Farms in Wisconsin, USA and Shandong Province, China - (Peer Reviewed Journal) - (28-Feb-08)

Measuring Water-Extractable Phosphorus in Manures to Predict Phosphorus Concentrations in Runoff - (Peer Reviewed Journal) - (28-Feb-08)

Nitrogen Mineralization of Broiler Litter Applied to Southeastern Coastal Plain Soils - (Peer Reviewed Journal)

Hubbard, R.K., Bosch, D.D., Marshall, L.K., Strickland, T.C., Rowland, D., Griffin, T.S., Honeycutt, C.W., Albrecht, S.L., Sistani, K.R., Torbert Iii, H.A., Woodbury, B.L., Powell, J.M., Wienhold, B.J. 2008. Nitrogen Mineralization of Broiler Litter Applied to Southeastern Coastal Plain Soils. Journal of Soil and Water Conservation. 63(4):182-192.

Nutrient Management Approaches and Tools for Dairy farms in Australia and the USA. - (Review Article)

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?

Seasonal Diet Affects on Ammonia Emissions from Tie-stall Dairy Barns - (Peer Reviewed Journal)

Powell, J.M., Broderick, G.A., Misselbrook, T.H. 2008. Seasonal Diet Affects on Ammonia Emissions from Tie-stall Dairy Barns. Journal of Dairy Science. 91:847-869.

Season and Bedding Impacts on Ammonia Emissions from Tie-stall Dairy Barns - (Peer Reviewed Journal)

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.

Implications of nutrient management data collected on Wisconsin dairy farms - (Proceedings/Symposium)

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.

Cow diet and management impact nutrient losses from dairy farms - (Proceedings/Symposium)

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.

Revising the paradigm for improved nutrient management on Australian dairy farms. - (Proceedings/Symposium)

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.

Linking Process Level Function and Beta-ammonia Oxidizer Community Dynamics Across Varying Soils Following Manure Application - (Abstract)

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.

Design and Calibration of Chambers for Measuring Ammonia Emissions from Tie-stall Dairy Barns - (Peer Reviewed Journal)

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.

Dairy Manure Type, Application Rate and Frequency Impact Plants and Soils - (Peer Reviewed Journal)

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.

Nutrient budgeting as an approach for improving nutrient management on Australian dairy farms. - (Peer Reviewed Journal)

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.

Nationally Coordinated Evaluation of Soil Nitrogen Mineralization Rate Using a Standardized Aerobic Incubation Protocol - (Peer Reviewed Journal)

Griffin, T.S., Honeycutt, C.W., Albrecht, S.L., Sistani, K.R., Torbert Iii, H.A., Wienhold, B.J., Woodbury, B.L., Hubbard, R.K., Powell, J.M. 2008. Nationally coordinated evaluation of soil nitrogen mineralization rate using a standardized aerobic incubation protocol. Communications in Soil Science and Plant Analysis. 39:257-268.

Nutrient Management Behavior on Wisconsin Dairy Farms - (Peer Reviewed Journal)

Powell, J.M., Jackson-Smith, D.B., Mccrory, D.F., Saam, H., Mariola, M. 2007. Nutrient Management Behavior on Wisconsin Dairy Farms. Agronomy Journal. 99:211-219.

Towards National Prediction of Manure N Availability: Soil Influence on Nitrifier Community and Nitrification - (Abstract)

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.

How good is nutrient management data collected on Wisconsin dairy farms? - (Abstract)

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.

What Dairy Cows are Fed Impacts Manure N Excretions and Cycling in Soils - (Abstract)

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

Estimates of Residual Dairy Manure N Availability Using Various Techniques - (Peer Reviewed Journal)

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.

Estimates of Residual Dairy Manure N Availability Using Various Techniques - (Peer Reviewed Journal) - (11-May-06)

A Review of Research Needs for Dairy Shed Effluent Management, State of Victoria, Australia - (Review Article)

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.

Manure Nitrogen Transformations in Air, Soil and Crops on Dairy Farms - (Proceedings/Symposium)

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.

Validation of Feed and Manure Data Collected on Wisconsin Dairy Farms - (Peer Reviewed Journal)

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.

Dairy Manure Nitrogen Mineralization Estimates from Incubations and Litterbags - (Peer Reviewed Journal)

Cusick, P.R., Powell, J.M., Kelling, K.A., Hensler, R.F., Munoz, G.R. 2006. Dairy manure nitrogen mineralization estimates from incubations and litterbags. Biology and Fertility of Soils. DOI 10.1007/s00374-006-0071-z.

Where and How Much Manure Is Land-Spread on Wisconsin Dairy Farms. - (Proceedings/Symposium)

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.

Ability of Wisconsin Dairy Farmers to Conform to 590 Nutrient Management Standards. - (Proceedings/Symposium)

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.

Reducing in-Barn Ammonia Emissions to Conserve the Fertilizer Nitrogen Value of Dairy Manure. - (Proceedings/Symposium)

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.

Dairy Diet Impacts on Fecal Chemical Properties and Nitrogen Cycling in Soils - (Peer Reviewed Journal)

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.

Enhanced Use of Feed and Manure Nutrients in Animal Agriculture - (Proceedings/Symposium)

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

Abating Ammonia Emissions from Dairy Barns Through Feed, Herd and Bedding Management - (Proceedings/Symposium)

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.

Standardizing Aerobic Incubation Methods: Is It Possible? - (Abstract)

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

Standardizing Aerobic Incubation Methods: Is It Possible? - (Abstract)

Griffin, T.S., Honeycutt, C.W., Albrecht, S.L., Hubbard, R.K., Powell, J.M., Sistani, K.R., Wienhold, B.J. 2005. Standardizing aerobic incubation methods: is it possible? Agronomy Abstracts.

Corn Residue Level and Manure Application Timing Effects on Phosphorus Losses in Runoff. - (Peer Reviewed Journal)

Grande, J.D., Karthikeyan, K.G., Miller, P.S., Powell, J.M. 2005. Corn residue level and manure application timing effects on phosphorus losses in runoff. Journal of Environmental Quality. 34:1620-1631.

Manure Collection and Distribution on Wisconsin Dairy Farms - (Peer Reviewed Journal) - (15-Jun-05)

Influence of Bedding Material on Ammonia Emissions from Cattle Excreta. - (Peer Reviewed Journal)

Misslebrook, T.H., Powell, J.M. 2005. Influence of bedding material on ammonia emissions from cattle excreta. Journal of Dairy Science. 88:4304-4312.

Dietary Manipulation in Dairy Cattle to Reduce Ammonia Emissions - (Peer Reviewed Journal)

Misselbrook, T., Powell, J.M., Broderick, G.A., Grabber, J.H. 2005. Dietary manipulation in dairy cattle to reduce ammonia emissions. Journal of Dairy Science. 88:1765-1777.

Crop Residue Level and Manure Application Timing Effects on Runoff and Sediment Losses from No-Till Corn - (Peer Reviewed Journal)

Grande, J.D., Karthikeyan, K.G., Miller, P.S., Powell, J.M. 2005. Crop residue level and manure application timing effects on runoff and sediment losses from no-till corn. Journal of Environmental Quality. 34:1337-1346.

Heavy Metal Concentrations in Dairy Feed: a Survey of Heavy Metal Concentrations in Wisconsin Dairy Feeds - (Peer Reviewed Journal)

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.

Protocols for Nationally Coordinated Laboratory and Field Research on Manure Nitrogen Mineralization - (Peer Reviewed Journal)

Honeycutt, C.W., Griffin, T.S., Wienhold, B.J., Eghball, B., Albrecht, S.L., Powell, J.M., Woodbury, B.L., Sistani, K.R., Hubbard, R.K., Torbert III, H.A., Eigenberg, R.A., Wright, R.J., Jawson, M.D., He, Z. 2005. Protocols for nationally coordinated laboratory and field research on manure nitrogen mineralization. Communications in Soil Science and Plant Analysis. 36: 2807-2822.

Dairy Herd Management Impacts on Manure Nitrogen Cycling. - (Proceedings/Symposium)

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.

Study of Dairy Manure N Cycling in Soil-Plant Continuum Using 15n and Other Methods - (Proceedings/Symposium) - (15-Dec-04)

Partnership for Abating Ammonia Emissions from Dairy Farms: Using a Logic Model to Build Concensus and Joint Work - (Proceedings/Symposium)

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.

Environmental Policy and Factors That Impact Manure Management on Wisconsin Dairy Farms - (Proceedings/Symposium)

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.

Diet Effects on Dairy Manure Nitrogen Excretion and Cycling - (Proceedings/Symposium) - (15-Dec-04)

Understanding Manure Management Behavior on Wisconsin Dairy Farms: Lessons from Recent on-Farm Research. - (Proceedings/Symposium)

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.

Evolution of Integrated Crop-Livestock Production Systems - (Proceedings/Symposium) - (15-Dec-04)

Dietary Phosphorus Levels for Dairy Cows - (Research Notes)

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

Cost Effective and Environmentally Beneficial Manure Management Practices and Strategies for Increasing Implementation and Fostering Innovation. - (Review Article) - (30-Sep-04)

Corralling Dairy Cows on Cropland to Enhance Manure Management - (Abstract)

Powell, J.M., Russelle, M.P. 2004. Corralling dairy cows on cropland to enhance manure management [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. CD-ROM. Paper No. 4680.

Contributions to Society: MANURE-FERTILIZER.FUEL, Developed Countried - (Peer Reviewed Journal)

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.

Reducing Ammonia Losses from Dairy Manure Application to Soil Through Dietary Manipulation - (Abstract)

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.

Balancing Cropland and Livestock on Wisconsin Dairy Farms - (Abstract)

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.

Predicting the Number of Suitable Days for Manure Spreading Across Wisconsin - (Abstract)

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.

Manure Handling and Extraction Procedure Effects on Determination of Water-Extractable Phosphorus in Manures - (Abstract)

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.

Ammonia Production and Loss from Dairy Farms - (Review Article)

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.

Whole-Farm Nutrient Management on Dairy Farms to Improve Profitability and Reduce Environment Impacts - (Monograph)

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.

Protein-Binding Polyphenols Enhance Nitrogen Cycling and Profitability of Dairy Farms - (Proceedings/Symposium)

Grabber, J.H., Broderick, G.A., Sullivan, M.L., Hatfield, R.D., Powell, J.M., Rotz, C.A., Muck, R.E., Ehlke, N.J. 2004. Protein-binding polyphenols enhance nitrogen cycling and profitability of dairy farms. In: 228th ACS National Meeting, August 22-26, 2004, Philadelphia, Pennsylvania. 2004 CDROM.

Impact of Forage Condensed Tannins on Protein Utilization and Nitrogen Cycling on Dairy Farms: a Progress Report - (Proceedings/Symposium)

Grabber, J.H., Broderick, G.A., Powell, J.M., Rotz, C.A., Ehlke, N.J., Davidson, C., Hymes Fecht, U.C., Massingill, L.J., Niemann, K.M., Vellekson, D. 2004. Impact of forage condensed tannins on protein utilization and nitrogen cycling on dairy farms: a progress report. In: American Forage and Grassland Council Conference Proceedings. Volume 13, June 12-16, 2004, Roanoke, Virginia. 2004 CDROM.

Exploring the Use of Animal Density Standards for Nutrient Management Policy on Wisconsin Dairy Farms - (Peer Reviewed Journal)

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.

Use of 15n to Evaluate Dairy Manure Nitrogen Availability to Corn and Cycling in Soils - (Proceedings/Symposium) - (02-Jan-04)

A Comparative Study of Nutrient Management Tools for Dairy Farms in New York, Wisconsin and Elsewhere - (Proceedings/Symposium)

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.

Efficiency of Manure Recovery and Land-Spreading on Wisconsin Dairy Farms - (Abstract)

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.

Differential 15n Labeling of Dairy Manure Components for Nitrogen Cycling Studies - (Peer Reviewed Journal)

Powell, J.M., Wu, Z., Kelling, K., Cusick, P., Munoz, G. 2004. Differential 15n labeling of dairy manure components for nitrogen cycling studies. Agronomy Journal. 96:433-441.

Comparison of Estimates of First-Year Dairy Manure N Availability Or Recovery Using 15n and Other Techniques - (Peer Reviewed Journal)

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.

Crop-Livestock Interactions in the West African Drylands - (Peer Reviewed Journal)

Powell, J.M., Pearson, R.A., Hiernaux, P.H. 2004. Crop-livestock interactions in the west African drylands. Agronomy Journal. 96:469-483.

Heavy Metal Loading Rates on Soils of Wisconsin Dairy Farms - (Proceedings/Symposium)

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.

Heavy Metal Concentration in Manure on Wisconsin Dairy Farms - (Proceedings/Symposium)

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.

15n Labeling and Use of Dairy Manure Components for N Cycling Studies - (Proceedings/Symposium)

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.

Cropping System Effect on Soluble and Sediment-Bound Phosphorus Losses - (Proceedings/Symposium)

GRANDE, J., KARTHIKEYAN, K.G., PANUSKA, J., POWELL, J.M. CROPPING SYSTEM EFFECT ON SOLUBLE AND SEDIMENT-BOUND PHOSPHORUS LOSSES. ASAE ANNUAL INTERNATIONAL MEETING. 2003.

Use of 15n to Evaluate Dairy Manure Nitrogen Availability to Corn and Cycling in Soils - (Proceedings/Symposium) - (15-Jul-03)

Dietary Phosphorus Considerations in Dairy Management - (Monograph)

EBELING, A., BUNDY, L., POWELL, J.M., SATTER, L. DIETARY PHOSPHORUS CONSIDERATIONS IN DAIRY MANAGEMENT. WISCONSIN NUTRIENT MANAGEMENT CURRICULUM. 2003. 4p.

Whole-Farm Nutrient Management on Dairy Farms: the Diet Connection - (Other)

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.

How Dairy Diet Affects Manure Nitrogen Excretion and Cycling in Soils - (Proceedings/Symposium)

POWELL, J.M. HOW DAIRY DIET AFFECTS MANURE NITROGEN EXCRETION AND CYCLING IN SOILS. MEETING ABSTRACT. 2003.

Nitrogen Availability from Various Dairy Manure Components - (Proceedings/Symposium)

CUSICK, P., POWELL, J.M., HENSLER, R., KELLING, K. NITROGEN AVAILABILITY FROM VARIOUS DAIRY MANURE COMPONENTS. MEETING ABSTRACT. 2003.

Research Continues on How to Reduce Pollution and Save Money for Dairy Farms - (Popular Publication)

POWELL, J.M., RUSSELLE, M.P. RESEARCH CONTINUES ON HOW TO REDUCE POLLUTION AND SAVE MONEY FOR DAIRY FARMS. AGRIVIEW. 2002. p. C11.

Whole-Farm Phosphorus Management on Dairy Farms - (Proceedings/Symposium) - (17-Jan-02)

Estimating Second-and Third-Year N Availability from Dairy Manure - (Proceedings/Symposium) - (17-Jan-02)

Dairy Phosphorus Considerations in Dairy Management - (Experiment Station) - (11-Jan-02)

Phosphorus Forms and Plant Availability - (Abstract) - (14-Nov-01)

Phosphorus Feeding and Manure Nutrient Recycling on Wisconsin Dairy Farms - (Peer Reviewed Journal) - (14-Aug-01)

Comparison of Dairy Manure Nitrogen Availability to Corn Using Various Methods - (Proceedings/Symposium) - (18-Jan-01)