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United States Department of Agriculture

Agricultural Research Service

Related Topics

J Mark Powell
Dairy Forage Research
Soil Science

Phone: (608) 890-0070
Fax: (608) 890-0076

1925 LINDEN DR W
MADISON , WI 53706

Projects
Forage Characteristics that Alter Feed Utilization, Manure Characteristics and Environmental Impacts of Dairy Production
Appropriated (D)
  Accession Number: 423817
Utilizing the University of Wisconsin Institutional Animal Care and Use Committee
Nonfunded Cooperative Agreement (N)
  Accession Number: 431113
Climate Change Mitigation and Adaptation in Dairy Production Systems of the Great Lakes Region
Reimbursable (R)
  Accession Number: 425027
Contribution of Dairy Ration Components to Nitrogen in Milk, Manure, Crops and Environmental Nitrogen Loss
Specific Cooperative Agreement (S)
  Accession Number: 427469

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Potential for reducing on-farm greenhouse gas and ammonia emissions from dairy cows with prolonged diet alterations -
Duval, B.D., Aguerre, M., Wattiaux, M., Vadas, P.A., Powell, J.M. 2016. Potential for reducing on-farm greenhouse gas and ammonia emissions from dairy cows with prolonged diet alterations. Journal Of Water Air And Soil Pollution. http://link.springer.com/journal/11270.
Gas emissions from dairy barnyards Reprint Icon -
Powell, J.M., Vadas, P.A. 2016. Gas emissions from dairy barnyards. Animal Production Science. 56:355–361.
Whole-farm phosphorus loss from grazing-based dairy farms -
Vadas, P.A., Powell, J.M., Brink, G.E., Busch, D.L., Good, L.W. 2015. Whole-farm phosphorus loss from grazing-based dairy farms. Agricultural Systems. 140:40-47.
Milk urea nitrogen (MUN) tool reduces nitrogen emissions from dairy farms -
Powell, J.M. 2016. Milk urea nitrogen (MUN) tool reduces nitrogen emissions from dairy farms. Global Research Alliance on Agricultural Greenhouse Gases - Livestock Research Group Newsletter. Available: http://globalresearchalliance.org/research/livestock/.
Effects of forage polyphenols on chemistry of ruminant excreta and fate of nitrogen in soils and the environment -
Powell, J.M. 2015. Effects of forage polyphenols on chemistry of ruminant excreta and fate of nitrogen in soils and the environment [abstract]. ASA-CSSA-SSSA Proceedings. [CD ROM]. Version 1.1. Madison, WI: ACS Societies.
Transformation of nitrogen contained in alfalfa silage, corn silage, corn grain and soybean meal into milk, manure and recycled back to corn -
Powell, J.M., Barros, T., Danes, M., Wattiaux, M. 2015. Transformation of nitrogen contained in alfalfa silage, corn silage, corn grain and soybean meal into milk, manure and recycled back to corn [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. [CD ROM]. Version 1.1. Madison, WI: ACS Societies.
Determining effects of multiple tannin manure applications on dairy forages and soil -
Campbell, C., Ruark, M.D., Powell, J.M. 2015. Determining effects of multiple tannin manure applications on dairy forages and soil [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. [CD ROM]. Version 1.1. Madison, WI: ACS Societies.
Bringing a needle to a laser fight: comparing greenhouse gas sampling methods with gas chromatography and fourier transform infrared spectroscopy -
Campbell, C., Collier, S.M., Ruark, M.D., Powell, J.M. 2015. Bringing a needle to a laser fight: comparing greenhouse gas sampling methods with gas chromatography and fourier transform infrared spectroscopy [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. [CD ROM]. Version 1.1. Madison, WI: ACS Societies.
The need for more uniform terms and measures of nitrogen use efficiency in agricultural production -
Powell, J.M. 2015. The need for more uniform terms and measures of nitrogen use efficiency in agricultural production. Journal of Soil and Water Conservation. 70(4):67A-69A.
Feed conversion efficiency in dairy cows: Repeatability, variation in digestion and metabolism of energy and nitrogen, and ruminal methanogens Reprint Icon -
Ardnt, C., Powell, J.M., Aguerre, M.J., Crump, P.M., Wattiaux, M.A. 2015. Feed conversion efficiency in dairy cows: Repeatability, variation in digestion and metabolism of energy and nitrogen, and ruminal methanogens. Journal of Dairy Science. 98(6):3938-3950.
Measures of nitrogen use efficiency and nitrogen loss from dairy production systems Reprint Icon -
Powell, J.M., Rotz, C.A. 2015. Measures of nitrogen use efficiency and nitrogen loss from dairy production systems. Journal of Environmental Quality. 44:336–344.
Feed and manure use in low-N-input and high-N-input dairy cattle production systems -
Powell, J.M. 2014. Feed and manure use in low-N-input and high-N-input dairy cattle production systems. Environmental Research Letters. 9(11):115004. Available: http://iopscience.iop.org/1748-9326/9/11/115004.
Performance, digestion, nitrogen balance, and emission of manure ammonia, enteric methane, and carbon dioxide in lactating cows fed diets with varying alfalfa silage-to-corn silage ratios Reprint Icon -
Arndt, C., Powell, J.M., Aguerre, M., Wattiaux, M. 2015. Performance, digestion, nitrogen balance, and emission of manure ammonia, enteric methane, and carbon dioxide in lactating cows fed diets with varying alfalfa silage-to-corn silage ratios. Journal of Dairy Science. 98(1):418-430.
Monitoring runoff from cattle-grazed pastures for a phosphorus loss quantification tool -
Vadas, P.A., Powell, J.M., Busch, D.L., Brink, G.E. 2014. Monitoring runoff from cattle-grazed pastures for a phosphorus loss quantification tool. Agriculture, Ecosystems and Environment. 199:124-131.
Nitrogen use and trade-offs on dairy farms: an illustration of complexity -
Powell, J.M. 2014. Nitrogen use and trade-offs on dairy farms: an illustration of complexity. Proceedings of Wisconsin Nitrogen Science Summit & Roundtable Series. Presentation No. 8.
Mitigating GHG emissions in dairy production -
Powell, J.M., Aguerre, M.J. 2014. Mitigating GHG emissions in dairy production. ASA-CSSA-SSSA Annual Meeting Abstracts. Paper No. 85170. Available: https://scisoc.confex.com/scisoc/2014am/webprogram/Paper85170.html
Relative excretion of nitrogen from alfalfa silage, corn silage, corn grain, and soybean meal in urine and feces by lactating dairy cows -
Powell, J.M., Barros, T., Danes, M., Wattiaux, M.A. 2014. Relative excretion of nitrogen from alfalfa silage, corn silage, corn grain, and soybean meal in urine and feces by lactating dairy cows [abstract]. Joint Meeting of the ADSA, AMSA, ASAS and PSA. Paper No. 1592.
Using MUN to reduce nitrogen emissions from dairy farms -
Powell, J.M., Bocher, L.W. 2014. Using MUN to reduce nitrogen emissions from dairy farms. Forage Focus. p. 14-15.
Chapter 5: Quantifying greenhouse gas sources and sinks in animal production systems -
Powers, W., Auvermann, B., Cole, N.A., Gooch, C., Grant, R., Hatfield, J.L., Hunt, P.G., Johnson, K., Leytem, A.B., Liao, W., Powell, J.M. 2014. Chapter 5: Quantifying greenhouse gas sources and sinks in animal production systems. Government Publication/Report. Chapter 5: 31-160.
Abatement of ammonia and nitrous oxide emissions from dairy farms using milk urea N (MUN) Reprint Icon -
Powell, J.M., Rotz, C.A., Wattiaux, M.A. 2014. Abatement of ammonia and nitrous oxide emissions from dairy farms using milk urea N (MUN). Journal of Environmental Quality. DOI:10.2134/jeq2013.09.0375.
What dairy cows are fed impacts manure chemistry and the environment -
Powell, J.M. 2014. What dairy cows are fed impacts manure chemistry and the environment. In: Proceedings of the Advanced Topics in Feed Mangement Meeting, May 8, 2014, Pennsylvania State University Extension, Lancaster, Pennsylvania. p. 1-45.
Contribution of dairy ration components to nitrogen in milk, manure, crops, and environmental nitrogen loss -
Powell, J.M., Barros, T., Danes, M., Wattiaux, M.A. 2014. Contribution of dairy ration components to nitrogen in milk, manure, crops, and environmental nitrogen loss. In: Cordovil, C.M.d.S. (ed.). The Nitrogen Challenge: Building a Blueprint for Nitrogen Use Efficiency and Food Security. 18th Nitrogen Workshop, June 30 –July 3, 2014, Lisbon, Portugal. p. 177-178.
Monitoring nutrient loss in runoff from dairy cattle lots -
Vadas, P.A., Powell, J.M. 2013. Monitoring nutrient loss in runoff from dairy cattle lots. Agriculture, Ecosystems and Environment. 181:127-133.
What we feed dairy cows impacts manure chemistry and the environment -
Powell, J.M., Broderick, G.A. 2013. What we feed dairy cows impacts manure chemistry and the environment. Waste to Worth: Spreading Science and Solutions 2013. p. 63-64.
Estimating ammonia and nitrous oxide emissions from dairy farms using milk urea nitrogen -
Powell, J.M., Wattiaux, M.A., Rotz, C.A. 2013. Estimating ammonia and nitrous oxide emissions from dairy farms using milk urea nitrogen. International Conference on Greenhouse Gasses and Animal Agriculture. 7(2):276.
Greenhouse gas fluxes from experimental dairy barnyards -
Powell, J.M., Duval, B.D., Vadas, P.A. 2013. Greenhouse gas fluxes from experimental dairy barnyards. International Conference on Greenhouse Gasses and Animal Agriculture. 7(2):264.
High partial feed conversion efficiency appears to be a persistent trait associated with reduction in selected measures of methane emissions in dairy cattle -
Arndt, C., Wattiaux, M.A., Powell, J.M., Aguerre, M.J. 2013. High partial feed conversion efficiency appears to be a persistent trait associated with reduction in selected measures of methane emissions in dairy cattle. International Conference on Greenhouse Gasses and Animal Agriculture. 7(2):516.
Relationship among methane emission, ammonia emission and selected animal performance measurements -
Aguerre, M.J., Wattiaux, M.A., Powell, J.M., Arndt, C. 2013. Relationship among methane emission, ammonia emission and selected animal performance measurements. International Conference on Greenhouse Gasses and Animal Agriculture. 7(2):535.
Feed-milk-manure nitrogen relationships in global dairy production systems Reprint Icon -
Powell, J.M., Macleod, M., Vellinga, T., Opio, C., Falcucci, A., Tempio, G., Steinfeld, H., Gerber, P. 2013. Feed-milk-manure nitrogen relationships in global dairy production systems. Livestock Science. 152(2-3):261-272. Available: http://dx.doi.org/10.1016/j.livsci.2013.01.001.
Impacts of flavanoid monomers and simple hydrolyzable tannins on ammonia emissions from dairy manure -
Environmentally friendly cows–reducing our environmental hoof print -
Boettcher, P., Henderson, B., Powell, J.M. 2012. Environmentally friendly cows–reducing our environmental hoof print. In: Proceedings of the 2012 World Holstein Conference, November 4-7, Toronto, Canada. Paper No. 13.
Emission of ammonia, nitrous oxide, methane, and carbon dioxide during storage of dairy cow manure as affected by dietary forage to concentrate ratio and crust formation Reprint Icon -
Aguerre, M.J., Wattiaux, M.A., Powell, J.M. 2012. Emission of ammonia, nitrous oxide, methane, and carbon dioxide during storage of dairy cow manure as affected by dietary forage to concentrate ratio and crust formation. Journal of Dairy Science. 95(12):7409-7416.
Determinations of feed-milk-manure relationships on grazing-based dairy farms Reprint Icon -
Powell, J.M., Aarons, S.R., Gourley, C.J. 2012. Determinations of feed-milk-manure relationships on grazing-based dairy farms. Animal-The International Journal of Animal Biosciences. 6: 1702-1710 DOI:10.1017/S1751731112000511.
Alteration of dairy cattle diets for beneficial on-farm recycling of manure nutrients -
Links among nitrification, nitrifier communities and edaphic properties in contrasting soils receiving dairy slurry -
Fortuna, A., Honeycutt, C.W., Marsh, T.L., Griffin, T.S., Larkin, R.P., He, Z., 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. 2011. Links among nitrification, nitrifier communities and edaphic properties in contrasting soils receiving dairy slurry. Journal of Environmental Quality. 41:262-272.
Links among nitrification, nitrifier communities and edaphic properties in contrasting soils receiving dairy slurry -
Fortuna, A., Honeycutt, C.W., Vandemark, G.J., 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., Allredge, R.J. 2012. Links among nitrification, nitrifier communities and edaphic properties in contrasting soils receiving dairy slurry. Journal of Environmental Quality. 41:262-272.
Dietary crude protein and tannin impact dairy manure chemistry and ammonia emissions from soils Reprint Icon -
Powell, J.M., Aguerre, M.J., Wattiaux, M.A. 2011. Dietary crude protein and tannin impact dairy manure chemistry and ammonia emissions from soils. Journal of Environmental Quality. 40:1767-1774. DOI:10.2134/jeq2011.0085.
Evaluation of milk urea nitrogen as a management tool to reduce ammonia emissions from dairy farms Reprint Icon -
Powell, J.M., Wattiaux, M.A., Broderick, G.A. 2011. Evaluation of milk urea nitrogen as a management tool to reduce ammonia emissions from dairy farms. Journal of Dairy Science. 94:4690-4694.
Trans-disciplinary soil science research: Impacts of dairy nutrition on manure chemistry and the environment Reprint Icon -
Powell, J.M., Broderick, G.A. 2011. Trans-disciplinary soil science research: impacts of dairy nutrition on manure chemistry and the environment. Soil Science Society of America Journal. 40:907-914. DOI:10.2134/jeq2010.0492.
Nitrogen use efficiency in grazed and confinement dairy production systems Reprint Icon -
Gourley, C.J., Aarons, S.R., Powell, J.M. 2011. Nitrogen use efficiency in grazed and confinement dairy production systems. Agriculture, Ecosystems and Environment. DOI:10.1016/j.agee.2011.05.011.
Dairy cattle diets, manure chemistry, and soil nutrient cycles: how do they relate? -
Powell, J.M., Bocher, L.W. 2011. Dairy cattle diets, manure chemistry, and soil nutrient cycles: how do they relate? Forage Focus. May 2011. pp 14-18.
Background and overview on the contribution of dairy nutrition to addressing environmental concerns in Wisconsin: nitrogen, phosphorus, and methane -
Wattiaux, M.M., Aguere, M.J., Powell, J.M. 2011. Background and overview on the contribution of dairy nutrition to addressing environmental concerns in Wisconsin: nitrogen, phosphorus, and methane. In. La Ganadéría ante el agotamiento de los paradigas dominantes Vol. 1. Carlos F. Marcof Álvarez (ed), Universidad Autoónoma Chapingo, Chapingo, México. (ISBN 978-968-839-586-8). pp. 111-139.
Effect of forage to concentrate ratio in dairy cow diets on emission of methane, carbon dioxide and ammonia, lactation performance and manure excretion Reprint Icon -
Aguerre, M.J., Wattiaux, M.A., Powell, J.M., Broderick, G.A. 2011. Effect of forage to concentrate ratio in dairy cow diets on emission of methane, carbon dioxide and ammonia, lactation performance and manure excretion. Journal of Dairy Science. 94:3081–3093.
Tannin extracts abate ammonia emissions from dairy barn floors Reprint Icon -
Powell, J.M., Aguerre, M.J., Wattiaux, M.A. 2011. Tannin extracts abate ammonia emissions from dairy barn floors. Journal of Environmental Quality. 40:3:907-914.
Manure nitrogen excretion and transformation on dairy farms -
Powell, J.M. 2010. Manure nitrogen excretion and transformation on dairy farms. In: Pereira, O. G., da Forseca, D.M., Obeid, J.A., do Nascimento, D. Jr., editors. Proceedings of the 5th Symposium on Strategic Management of Pasture and 3rd International Symposium on Animal Production Under Grazing, University of Vicosa, Brazil, November 11-13, 2010. pp. 273-292.
Snap-shots of feed and manure management on dairy farms Reprint Icon -
Powell, J.M. 2010. Snap-shots of feed and manure management on dairy farms. Michigan Dairy Review. 15(4):15-16.
Effect of Dietary Forage to Concentrate Ratio on Lactation Performance and Methane Emission from Dairy Cows -
The Effect of Dietary Alfalfa Silage to Corn Silage Ratio on Lactating Cow Performance and Methane Emission -
Animal Nutrition and the Environment: Examples from Dairy Production -
Dairy Slurry Application Method Effects on Ammonia Emission and Nitrate Leaching in No-till Corn Silage -
Snap-shot Assessment of Resource Use and Production Small-holder Dairy Farms in Uttar Pradesh, INDIA -
Powell, J.M. 2010. Snap-shot Assessment of Resource Use and Production on Small-holder Dairy Farms in Uttar Pradesh, India. Case Study Vol. 1, No. 1. The Babcock Institute for International Dairy Research and Development. University of Wisconsin-Madison.
Dietary CP and Tannin Extracts Impact Ammonia Emissions From Manure Deposited On Dairy Barn Floors -
Powell, J.M., Aguerre, M.J., Wattiaux, M.A. 2010. Dietary CP and Tannin Extracts Impact Ammonia Emissions From Manure Deposited On Dairy Barn Floors. Joint Meeting of the ADSA, AMSA, ASAS and PSA. Abstract W331. 693 J. Anim. Sci. Vol. 88, E-Suppl. 2/J. Dairy Sci. Vol. 93, E-Suppl. 1/Poult. Sci. Vol. 89, E-Suppl. 1. 2010
The Effect of Dietary Alfalfa Silage to Corn Silage Ratios on Cow Performance and Ammonia Nitrogen Emission -
Arndt, C., Wattiaux, M.A., Powell, J.M. 2010. The Effect of Dietary Alfalfa Silage to Corn Silage Ratios on Cow Performance and Ammonia Nitrogen Emission. Joint Meeting of the ADSA, AMSA, ASAS and PSA. Abstract W327. 692 J. Anim. Sci. Vol. 88, E-Suppl. 2/J. Dairy Sci. Vol. 93, E-Suppl. 1/Poult. Sci. Vol. 89, E-Suppl.
Nitrogen Use Efficiency: A Performance Indicator for Dairy Farms? -
Powell, J.M., Gourley, C.P., Rotz, C.A., Weaver, D.A. 2010. Nitrogen Use Efficiency: A Performance Indicator for Dairy Farms. Environmental Science and Policy. 13:217-228.
Manure’s Contributions to Society: Fertilizer/Fuel in Developed Countries -
Ammonia Emissions From Dairy Barns: What Have We Learned? -
Powell, J.M., Broderick, G.A. 2009. Ammonia Emissions From Dairy Barns: What Have We Learned? Proceedings of Cornell Nutrition Conference for Feed Manufacturers. p 210-219.
Dairy Slurry Application Method Effects On NH3 Emission, and NO3 Leaching in No-till Corn Silage Reprint Icon -
Powell, J.M., Jokela, W.E. 2009. Dairy Slurry Application Method Effects On NH3 Emission, and NO3 Leaching in No-till Corn Silage [abstract]. 2009 ASA-CSSA-SSSA Annual Meeting Abstracts. Paper 270-4.
Snap-shot Assessment of Nutrient Use Efficiency on Confinement Dairy Farms -
Powell, J.M. 2009. Snap-shot Assessment of Nutrient Use Efficiency on Confinement Dairy Farms Fact Sheet. US Dairy Forage Research Center, Madison, Wisconsin [website]. Available: http://www.ars.usda.gov/sp2UserFiles/Place/36553000/pdf's/Nutrient_use_efficiency/snap-shot%20assessment_PDF.pdf. 2009.
Manure Tracking Book -
Powell, J.M., Saam, H. 2009. Manure Tracking Book. US Dairy Forage Research Center [website]. Available: http://www.ars.usda.gov/sp2UserFiles/Place/36553000/pdf's/Nutrient_use_efficiency/Manure%20spreading%20log.pdf. 2009.
On Farmers' Ground: Final Farmer Report -
Powell, J.M., Jackson-Smith, D.B., Mariola, M., Saam, H. 2009. On Farmers' Ground: Final Farmer Report. US Dairy Forage Research Center [web site]. Available: http://www.ars.usda.gov/sp2UserFiles/Place/36553000/pdf's/Nutrient_use_efficiency/Example%20of%20Farmer's%20Final%20Report.pdf. 2009.
On Farmers’ Ground: Wisconsin Dairy Farm Nutrient Management Survey Questionnaire -
Jackson-Smith, D.B., Powell, J.M. 2009. On Farmers’ Ground: Wisconsin Dairy Farm Nutrient Management Survey Questionnaire. US Dairy Forage Research Center [website]. Available: http://www.ars.usda.gov/sp2UserFiles/Place/36553000/pdf's/Nutrient_use_efficiency/Nutrient%20Mgmt%20Survey.pdf. 2009.
Nitrogen Use Efficiency in Dairy Production -
Powell, J.M., Rotz, C.A., Weaver, D.M. 2009. Nitrogen Use Efficiency in Dairy Production. In: Grignani, C., Acutis, M., Zavattaro, L., Bechini L., Bertora, C., Marino Gallina, P., Sacco, P., editors. Proceedings of the 16th Nitrogen Workshop - Connecting different scales of nitrogen use in agriculture, June 28 - July 1, 2009, Turin, Italy. p. 241-242.
The United States: Trends in the Dairy Industry and Their Implications for Producers and the Environment -
Powell, J.M., Russelle, M.P., Martin, N.P. 2010. The United States: Trends in the Dairy Industry and Their Implications for Producers and the Environment. In: Gerber, P., et al. (Ed.) Livestock in a Changing Environment. Volume 2. Experiences and Regional Perspectives. London, England: Island Press. p. 115-139.
Making the Most Out of Your Nutrients in Feed, Milk and Manure -
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 in Wisconsin, USA -
Powell, J.M., Russelle, M.P. 2009. Dairy Cattle Management Impacts Manure N Collection and Cycling Through Crops in Wisconsin, USA. Agriculture, Ecosystems and Environment [electronic journal]. 131(2009):170-177.
Dietary Forage Impacts on Dairy Slurry N Availability to Corn -
Powell, J.M., Grabber, J.H. 2009. Dietary Forage Impacts on Dairy Slurry N Availability to Corn. Agronomy Journal. 101:747-753.
Cows Aren’t Equal Opportunity Manure Spreaders -
Powell, J.M., Gourley, C.J. 2009. Cows Aren’t Equal Opportunity Manure Spreaders. Hoard's Dairyman, January 2009. p. 54.
Inverse-Dispersion Calculation of Ammonia Emissions from Wisconsin Dairy Farms -
Flesch, T.K., Harper, L.A., Powell, J.M., Wilson, J.D. 2009. Inverse-Dispersion Calculation of Ammonia Emissions from Wisconsin Dairy Farms. Transactions of the ASABE. Vol. 52(1): 253-265.
Ammonia Emissions from Dairy Production Systems in Wisconsin -
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 -
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.
Correspondence Between Small- and Large-Scale Determinations of Ammonia Emissions from Dairy Barns Reprint Icon -
Powell, J.M., Broderick, G.A., Misselbrook, T.H., Casler, M.D. 2008. Correspondence Between Small- and Large-Scale Determinations of Ammonia Emissions from Dairy Barns [abstract]. In: Proceedings of the National Atmospheric Depotition Program Annual Meeting and Scientific Symposium. October 14-16, 2008, Madison, Wisconsin. p. 29.
Corralling versus broadcasting dairy heifer manure: volatilization, leaching, and mineralizable N -
Russelle, M.P., Powell, J.M. 2008. Corralling Versus Broadcasting Dairy Heifer Manure: Volatilization, Leaching, and Mineralizable N [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. ASA-CSSA-SSSA Annual Meeting, October 5-9, 2008, Houston, Texas. Abstract No. 541-3.
Dairy Cattle Management Impacts Manure Nitrogen Collection and Cycling Through Crops Reprint Icon -
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 -
Honeycutt, C.W., Griffin, T.S., Fortuna, A., Wienhold, B.J., Woodbury, B.L., Albrecht, S.L., Sistani, K.R., Torbert Iii, H.A., Hubbard, R.K., Powell, J.M., He, Z. 2008. Nationally Coordinated Research to Predict Manure Nitrogen Availability. American Society of Agronomy Abstracts. Published on CD-Rom.
Rapid Assessment of Feed and Manure Management on Dairy Farms in Wisconsin, USA and Shandong Province, China -
Powell, J.M., Li, Y., Wu, Z., Broderick, G.A., Holmes, B.J. 2008. Rapid Assessment of Feed and Manure Management on Dairy Farms in Wisconsin, USA and Shandong Province, China. Nutrient Cycling in Agroecosystems. 82:107-115.
Measuring Water-Extractable Phosphorus in Manures to Predict Phosphorus Concentrations in Runoff -
Nitrogen Mineralization of Broiler Litter Applied to Southeastern Coastal Plain Soils -
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. Reprint Icon -
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 -
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 -
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 -
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 -
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. -
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 -
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 -
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 -
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. -
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 -
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 -
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 -
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? -
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 Reprint Icon -
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 -
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 -
A REVIEW OF RESEARCH NEEDS FOR DAIRY SHED EFFLUENT MANAGEMENT, STATE OF VICTORIA, AUSTRALIA -
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 -
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.
DAIRY MANURE NITROGEN MINERALIZATION ESTIMATES FROM INCUBATIONS AND LITTERBAGS -
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.
VALIDATION OF FEED AND MANURE DATA COLLECTED ON WISCONSIN DAIRY FARMS -
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.
WHERE AND HOW MUCH MANURE IS LAND-SPREAD ON WISCONSIN DAIRY FARMS. -
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. -
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. -
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 -
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 -
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 -
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? -
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? -
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. -
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 -
INFLUENCE OF BEDDING MATERIAL ON AMMONIA EMISSIONS FROM CATTLE EXCRETA. -
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 -
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 -
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 -
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 -
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.
PARTNERSHIP FOR ABATING AMMONIA EMISSIONS FROM DAIRY FARMS: USING A LOGIC MODEL TO BUILD CONCENSUS AND JOINT WORK -
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 -
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 -
UNDERSTANDING MANURE MANAGEMENT BEHAVIOR ON WISCONSIN DAIRY FARMS: LESSONS FROM RECENT ON-FARM RESEARCH. -
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.
STUDY OF DAIRY MANURE N CYCLING IN SOIL-PLANT CONTINUUM USING 15N AND OTHER METHODS -
EVOLUTION OF INTEGRATED CROP-LIVESTOCK PRODUCTION SYSTEMS -
DAIRY HERD MANAGEMENT IMPACTS ON MANURE NITROGEN CYCLING. -
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.
DIETARY PHOSPHORUS LEVELS FOR DAIRY COWS -
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. -
REDUCING AMMONIA LOSSES FROM DAIRY MANURE APPLICATION TO SOIL THROUGH DIETARY MANIPULATION -
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.
CONTRIBUTIONS TO SOCIETY: MANURE-FERTILIZER.FUEL, DEVELOPED COUNTRIED -
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.
PREDICTING THE NUMBER OF SUITABLE DAYS FOR MANURE SPREADING ACROSS WISCONSIN -
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 -
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.
CORRALLING DAIRY COWS ON CROPLAND TO ENHANCE MANURE MANAGEMENT -
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.
BALANCING CROPLAND AND LIVESTOCK ON WISCONSIN DAIRY FARMS -
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.
AMMONIA PRODUCTION AND LOSS FROM DAIRY FARMS -
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 -
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 -
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 -
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 -
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 -
A COMPARATIVE STUDY OF NUTRIENT MANAGEMENT TOOLS FOR DAIRY FARMS IN NEW YORK, WISCONSIN AND ELSEWHERE -
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 -
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.
COMPARISON OF ESTIMATES OF FIRST-YEAR DAIRY MANURE N AVAILABILITY OR RECOVERY USING 15N AND OTHER TECHNIQUES -
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.
DIFFERENTIAL 15N LABELING OF DAIRY MANURE COMPONENTS FOR NITROGEN CYCLING STUDIES -
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.
CROP-LIVESTOCK INTERACTIONS IN THE WEST AFRICAN DRYLANDS -
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 -
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 -
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 -
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 -
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 -
DIETARY PHOSPHORUS CONSIDERATIONS IN DAIRY MANAGEMENT -
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 -
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.
NITROGEN AVAILABILITY FROM VARIOUS DAIRY MANURE COMPONENTS -
CUSICK, P., POWELL, J.M., HENSLER, R., KELLING, K. NITROGEN AVAILABILITY FROM VARIOUS DAIRY MANURE COMPONENTS. MEETING ABSTRACT. 2003.
HOW DAIRY DIET AFFECTS MANURE NITROGEN EXCRETION AND CYCLING IN SOILS -
POWELL, J.M. HOW DAIRY DIET AFFECTS MANURE NITROGEN EXCRETION AND CYCLING IN SOILS. MEETING ABSTRACT. 2003.
RESEARCH CONTINUES ON HOW TO REDUCE POLLUTION AND SAVE MONEY FOR DAIRY FARMS -
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 -
ESTIMATING SECOND-AND THIRD-YEAR N AVAILABILITY FROM DAIRY MANURE -
DAIRY PHOSPHORUS CONSIDERATIONS IN DAIRY MANAGEMENT -
PHOSPHORUS FORMS AND PLANT AVAILABILITY -
TANNIN-CONTAINING FORAGE CROPS: A WAY TO IMPROVE NITROGEN-USE AND PROFITABILITY OF DAIRY FARMS -
PHOSPHORUS FEEDING AND MANURE NUTRIENT RECYCLING ON WISCONSIN DAIRY FARMS -
MANAGEMENT PRACTICE EFFECTS ON PHOSPHORUS LOSSES IN RUNOFF IN CORN PRODUCTION SYSTEMS -
NUTRIENT CYCLING PRACTICES ABD CHANGES IN SOIL PROPERTIES IN CROP-LIVESTOCKFARMING SYSTEMS OF NIGER, WEST AFRICA -
COMPARISON OF DAIRY MANURE NITROGEN AVAILABILITY TO CORN USING VARIOUS METHODS -
DAIRY DIET PHOSPHORUS EFFECTS ON PHOSPHORUS LOSSES IN RUNOFF FROM LAND-APPLIED MANURE -
SIMULATED RAINFALL DURATION AND SOIL SAMPLING DEPTH EFFECTS ON INTERPRETATION OF PHOSPHORUS RUNOFF DATA -
ENVIRONMENTAL ISSUES FACING INDUSTRIAL AGRICULTURE IN THE 21ST CENTURY -
WHOLE-FARM PHOSPHORUS MANAGEMENT ON DAIRY FARMS -
FORAGES SHOW LITTLE RESPONSE TO HIGH SOIL TEST P -
TURNOVER OF DAIRY MANURE N FRACTIONS IN SOIL -
REDUCTION OF NITROGEN AND PHOSPHORUS IN DAIRY MANURE BY DIET MANIPULATION -
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