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United States Department of Agriculture

Agricultural Research Service

William Jokela (Bill)
U.S. Dairy Forage Research Center
Soil Scientist

Phone: (715) 384-5954
Fax: (715) 384-9157
1925 LINDEN DRIVE WEST
MADISON, WI, 53706

Projects
IMPROVEMENT OF DAIRY FORAGE AND MANURE MANAGEMENT TO REDUCE ENVIRONMENTAL RISK
Appropriated (D)
  Accession Number: 420140
Climate Change Mitigation and Adaptation in Dairy Production Systems of the Great Lakes Region
Reimbursable (R)
  Accession Number: 425027
ASSESSMENT OF NEW SAND VS. RECYCLED PRODUCTS OF MANURE SEPARATION AS BEDDING MATERIALS FOR LACTATING COWS IN FREESTALL HOUSING
Specific Cooperative Agreement (S)
  Accession Number: 421662

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Effects of dairy slurry on silage fermentation characteristics and nutritive value of alfalfa - (Peer Reviewed Journal) - (14-Aug-14)
Cultivar, harvest date, and nitrogen fertilization affect production and quality of fall oat Reprint Icon - (Peer Reviewed Journal)
Coblentz, W.K., Jokela, W.E., Bertram, M.G. 2014. Cultivar, harvest date, and nitrogen fertilization affect production and quality of fall oat. Agronomy Journal. 106:2075-2086.
Simultaneous concentration of bovine viruses and agricultural zoonotic bacteria from water using sodocalcic glass wool filters - (Peer Reviewed Journal) - (04-Jul-14)
Measurement of greenhouse gas flux from agricultural soils using static chambers - (Peer Reviewed Journal)
Collier, S.M., Ruark, M.D., Oates, L.G., Jokela, W.E., Dell, C.J. 2014. Measurement of greenhouse gas flux from agricultural soils using static chambers. Journal of Visual Education. 90 e52110 DOI: 10.3791152110.
Fertilization of fall-grown oat with urea or bedded-pack manure - (Abstract Only)
Coblentz, W.K., Jokela, W.E., Bertram, M.G. 2014. Fertilization of fall-grown oat with urea or bedded-pack manure. Journal of Dairy Science. Joint Meeting of ADSA and ASAS, July 20-24, 2014. Kansas City, MO.
Effects of dairy slurry on the nutritive value and fermentation characteristics of alfalfa silages - (Abstract Only)
Coblentz, W.K., Muck, R.E., Borchardt, M.A., Jokela, W.E., Bertram, M.G. 2014. Effects of dairy slurry on the nutritive value and fermentation characteristics of alfalfa silages. Journal of Dairy Science. Joint Meeting of ADSA and ASAS, July 20-24, 2014. Kansas City, MO..
Sidedressed dairy manure effects on corn yield and nitrate leaching potential - (Peer Reviewed Journal) - (24-Mar-14)
Application of dairy slurry on alfalfa fields, and subsequent effects on nutritive value and silage fermentation characteristics of the harvested forage - (Popular Publication)
Coblentz, W.K., Muck, R.E., Borchardt, M.A., Jokela, W.E., Bertram, M. 2014. Application of dairy slurry on alfalfa fields, and subsequent effects on nutritive value and silage fermentation characteristics of the harvested forage. Forage Focus. p. 22.
Soil nitrate and forage yields of corn grown with clover or grass companion crops and manure - (Peer Reviewed Journal)
Grabber, J.H., Jokela, W.E., Lauer, J. 2014. Soil nitrate and forage yields of corn grown with clover or grass companion crops and manure. Agronomy Journal. 106:952-961.
Surface runoff from manured cropping systems assessed by the paired-watershed method, part 1: P, N, and sediment transport - (Abstract Only)
Jokela, W.E., Casler, M.D., Bertram, M.G., Borchardt, M.A. 2014. Surface runoff from manured cropping systems assessed by the paired-watershed method, part 1: P, N, and sediment transport. American Water Resources Association Conference Proceedings. March 13-14, 2014.
Surface runoff from manured cropping systems assessed by the paired-watershed method, part 2: pathogen transport - (Abstract Only)
Borchardt, M.A., Spencer, S.K., Jokela, W.E. 2014. Surface runoff from manured cropping systems assessed by the paired-watershed method, part 2: pathogen transport. American Water Resources Association Conference Proceedings. March 13-14, 2014.
Runoff losses from corn silage-manure cropping systems - (Proceedings)
Jokela, W.E., Casler, M.D., Bertram, M. 2014. Runoff losses from corn silage-manure cropping systems. Meeting Proceedings. Vol. 53.
Off-season groundcover and runoff characteristics of perennial clover and annual grass companion crops for no-till corn fertilized with manure - (Peer Reviewed Journal)
Grabber, J.H., Jokela, W.E. 2013. Off-season groundcover and runoff characteristics of perennial clover and annual grass companion crops for no-till corn fertilized with manure. Journal of Soil and Water Conservation. 68(5):411-418.
Exploring new forage options to address emerging dietary and environmental challenges in dairy forage systems: reducing excessive weight gain in dairy replacement heifers fed a corn-silage based diet - (Popular Publication)
Coblentz, W.K., Bertram, M.G., Hoffman, P.C., Esser, N.M., Jokela, W.E. 2012. Exploring new forage options to address emerging dietary and environmental challenges in dairy forage systems: reducing excessive weight gain in dairy replacement heifers fed a corn-silage based diet. Forage Focus. pp. 17-18.
Dairy heifer manure management, dietary phosphorus, and soil test P effects on runoff phosphorus - (Peer Reviewed Journal)
Jokela, W.E., Coblentz, W.K., Hoffman, P.C. 2012. Dairy heifer manure management, dietary phosphorus, and soil test P effects on runoff phosphorus. Journal of Environmental Quality. 2012 41:(5): 1600-1611. DOI:10.2134/jeq2012.0046.
Testing the Wisconsin P index with year-round, field-scale runoff monitoring - (Peer Reviewed Journal)
Good, L.W., Vadas, P.A., Panuska, J.C., Bonilla, C.A., Jokela, W.E. 2012. Testing the Wisconsin P index with year-round, field-scale runoff monitoring. Journal of Environmental Quality. 41:1730-1740.
Manure application method and timing effects on emission of ammonia and nitrous oxide - (Abstract Only)
Jokela, W.E., Laboski, C.A., Andraski, T.W. 2012. Manure application method and timing effects on emission of ammonia and nitrous oxide. ASA-CSSA-SSSA Annual Meeting Abstracts. Oct 21-24, 2012.
Soil erosion and nutrient runoff in corn silage with kura clover living mulch and winter rye - (Abstract Only)
Schwab, A.R., Albrecht, K.A., Jokela, W.E. 2012. Soil erosion and nutrient runoff in corn silage with kura clover living mulch and winter rye. ASA-CSSA-SSSA Annual Meeting Abstracts. Oct 21-24, 2012.
Pathogen transport in surface runoff from manured agricultural fields - (Abstract Only)
Borchardt, M.A., Jokela, W.E., Spencer, S.K. 2012. Pathogen transport in surface runoff from manured agricultural fields. Meeting Abstract. September 23-26, 2012.
Benefits of perennial forages in rotations Reprint Icon - (Book / Chapter)
Jokela, W.E., Russelle, M.P. 2013. Benefits of perennial forages in rotations. In: Bittman, S., Hunt, D., editors. Cool Forages, Advanced Management of Temperate Forages. Agassiz, BC: Pacific Field Corn Association. p. 84-87.
Manure on alfalfa - (Book / Chapter)
Russelle, M.P., Jokela, W.E. 2013. Manure on alfalfa. In: Bittman, S., Hunt, D., editors. Cool Forages: Advanced Management of Temperate Forages. Pacific Field Corn Assn., Agassiz, BC, Canada. p. 144-147.
Glass wool filters for concentrating waterborne viruses and agricultural zoonotic pathogens - (Peer Reviewed Journal)
Millen, H., Gonnering, J., Berg, R., Spencer, S.K., Jokela, W.E., Pearce, J.M., Borchardt, J.S., Borchardt, M.A. 2012. Glass wool filters for concentrating waterborne viruses and agricultural zoonotic pathogens. Journal of Visualized Experiments. DOI: 10.3791/3930.
Dairy heifer diets, manure management, and runoff phosphorus - (Proceedings)
Jokela, W.E., Coblentz, W.K., Hoffman, P.C. 2012. Dairy heifer diets, manure management, and runoff phosphorus. Meeting Proceedings. Vol 51.
Novel/non-conventional manure application practices to minimize environmental impacts - (Abstract Only)
Jokela, W.E., Kleinman, P.J., Bittman, S., Ball, B.R., Meisinger, J.J. 2011. Novel/non-conventional manure application practices to minimize environmental impacts. American Society of Agronomy Abstracts. ASA-CSSA-SSSA International Annual Meetings Abstracts..
Midwest cropping system effects on soil properties and on a soil quality index - (Peer Reviewed Journal)
Jokela, W.E., Posner, J.L., Hedtcke, J.L., Balser, T.C., Read, H.W. 2011. Midwest cropping system effects on soil properties and on a soil quality index. Agronomy Journal. 103:1552–1562.
Runoff losses of phosphorus and nitrogen in a corn silage system: A field-scale paired watershed approach - (Abstract Only)
Jokela, W.E., Casler, M.D. 2011. Runoff losses of phosphorus and nitrogen in a corn silage system: A field-scale paired watershed approach. Agronomy Abstracts. ASA-CSSA-SSSA Annual Meeting Abstracts..
Pathogen losses in surface runoff from dairy manure applied to corn fields - (Abstract Only)
Borchardt, M.A., Jokela, W.E., Spencer, S.K. 2011. Pathogen losses in surface runoff from dairy manure applied to corn fields. American Society for Microbiology. Abstract #1436.
The effect of rain and runoff when assessing timing of manure application and dissolved phosphorus loss in runoff - (Peer Reviewed Journal)
Vadas, P.A., Jokela, W.E., Franklin, D.H., Endale, D.M. 2011. The effect of rain and runoff when assessing timing of manure application and dissolved phosphorus loss in runoff. Journal of the American Water Resources Association. 47(4):877-886.
Manure application methods to minimize ammonia losses and maximize crop N use - (Proceedings)
Jokela, W.E., Meisinger, J.J. 2011. Manure application methods to minimize ammonia losses and maximize crop N use. Meeting Proceedings. Feb. 15-16, 2011..
Transport of nutrients and sediment in surface runoff in a corn silage system: paired watershed methodology and calibration period results Reprint Icon - (Peer Reviewed Journal)
Jokela, W.E., Casler, M.D. 2011. Transport of nutrients and sediment in surface runoff in a corn silage system: paired watershed methodology and calibration period results. Canadian Journal of Soil Science. 91:479-491.
Cropping system effects on soil quality - (Proceedings)
Jokela, W.E. 2011. Cropping system effects on soil quality. Meeting Proceedings. p. 157-162.
Ammonia volatilization from surface-banded and broadcast application of liquid dairy manure on grass forage - (Peer Reviewed Journal)
Pfluke, P.D., Jokela, W.E., Bosworth, S.C. 2010. Ammonia volatilization from surface-banded and broadcast application of liquid dairy manure on grass forage. Journal of Environmental Quality. 40:374-382.
Unique Dairy Applications for Eastern Gamagrass in Central Wisconsin: I. Yield Potential - (Peer Reviewed Journal)
Coblentz, W.K., Jokela, W.E., Hoffman, P.C., Bertram, M.G. 2010. Unique Dairy Applications for Eastern Gamagrass in Central Wisconsin: I. Yield Potential. Agronomy Journal. 102:1710-1719.
Unique Dairy Applications for Eastern Gamagrass in Central Wisconsin: II. Nutritive Value and Energy Density - (Peer Reviewed Journal)
Coblentz, W.K., Hoffman, P.C., Jokela, W.E., Bertram, M.G. 2010. Unique Dairy Applications for Eastern Gamagrass in Central Wisconsin: II. Nutritive Value and Energy Density. Agronomy Journal. 102:1720-1730.
Long-Term Cropping System Effects on Soil Properties and on a Soil Quality Index - (Abstract Only) - (27-Jul-10)
Dairy Slurry Application Method Effects on Ammonia Emission and Nitrate Leaching in No-till Corn Silage - (Peer Reviewed Journal) - (12-Jul-10)
Long-Term Cropping System Effects on Soil Properties and on a Soil Quality Index Reprint Icon - (Book / Chapter)
Jokela, W.E., Posner, J.L., Hedke, J.L. 2010. Long-Term Cropping System Effects on Soil Properties and on a Soil Quality Index. The Wiconsin Integrated Cropping System Trial Techinical Annual Report. Available: http://wicst.wisc.edu/core-systems-trial/soil-health-biodiversity/long-term-cropping-system-effects-on-soil-properties-and-on-a-soil-quality-index/
Yield Potential of Eastern Gamagrass in Central Wisconsin - (Abstract Only)
Coblentz, W.K., Jokela, W.E., Bertram, M.G., Hoffman, P.C. 2010. Yield Potential of Eastern Gamagrass in Central Wisconsin. Journal of Dairy Science. 93:56.
Benefits of Perennial Forages for Soils, Crops, and Water Quality Reprint Icon - (Popular Publication)
Jokela, W.E., Russelle, M.P. 2010. Benefits of Perennial Forages for Soils, Crops, and Water Quality. Progressive Forage Grower. March. p. 5-7.
Grass Forage Response to Broadcast or Surface-Banded Liquid Dairy Manure and Nitrogen Fertilizer Reprint Icon - (Peer Reviewed Journal)
Carter, J.E., Jokela, W.E., Boxworth, S.C. 2010. Grass Forage Response to Broadcast or Surface-Banded Liquid Dairy Manure and Nitrogen Fertilizer. Agronomy Journal. 102:1123-1131.
Cover Crops Can Improve Soil Quality Under No-till Corn Silage - (Popular Publication)
Jokela, W.E. 2009. Cover Crops Can Improve Soil Quality Under No-till Corn Silage. Forage Focus Magazine, Midwest Forage Association, St. Paul, Minnesota. August 2009 Issue. p. 21.
Dairy Slurry Application Method Effects On NH3 Emission, and NO3 Leaching in No-till Corn Silage Reprint Icon - (Abstract Only)
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.
Manure Management to Improve Nutrient Use Efficiency and Environmental Quality - (Abstract Only) - (03-Aug-09)
Application Methods for Liquid Manure on Perennial Forages: North American Experience - (Abstract Only) - (03-Aug-09)
Transport of Nutrients and Pathogens in Surface Runoff in a Corn Silage System: Paired Watershed Methodology and Three-Year Results - (Abstract Only) - (07-Jul-09)
Manure Nutrient Content on Vermont Dairy Farms: Long-term Trends and Relationships - (Peer Reviewed Journal)
Jokela, W.E., Tilley, J.P., Ross, D.S. 2010. Manure Nutrient Content on Vermont Dairy Farms: Long-term Trends and Relationships. Communications in Soil Science and Plant Analysis. 41:623-637.
Dairy Manure Nutrients: Variable, But Valuable - (Popular Publication)
Jokela, W.E., Peters, J. 2009. Dairy Manure Nutrients: Variable, But Valuable. Forage Focus March, 2009. p. 3-5.
Cover Crop and Liquid Manure Effects on Soil Quality Indicators in a Corn Silage System. Reprint Icon - (Peer Reviewed Journal)
Jokela, W.E., Grabber, J.H., Karlen, D.L., Balser, T.C., Palmquist, D.E. 2009. Cover Crop and Liquid Manure Effects on Soil Quality Indicators in a Corn Silage System. Agronomy Journal. 101:727-737.
Dairy Manure Nutrients: Variable But Valuable Reprint Icon - (Proceedings)
Jokela, W.E., Peters, J. 2009. Dairy Manure Nutrients: Variable But Valuable. Proceedings of the 2009 Wisconsin Crop Management Conference, January 13-15, 2009, Exposition Hall, Alliant Energy Center, Madison, Wisconsin. 48:155-162.
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.
Manure and Soil Test Phosphorus Effects on Runoff P from Simulated Rain - (Abstract Only)
Jokela, W.E., Coblentz, W.K., Hoffman, P.C. 2008. Manure and Soil Test Phosphorus Effects on Runoff P from Simulated Rain [abstract]. In: Proceedings of the ASA-CSSA-SSSA Annual Meeting Abstracts. ASA-CSSA-SSSA Annual Meeting, October 5-9, 2008, Houston, Texas. 2008 CD-ROM.
Estimating Losses of Dry Matter from Wetted Alfalfa-Orchardgrass Mixtures Using Cell Wall Components as Internal Markers Reprint Icon - (Peer Reviewed Journal)
Coblentz, W.K., Jokela, W.E. 2008. Estimating Losses of Dry Matter from Wetted Alfalfa-Orchardgrass Mixtures Using Cell Wall Components as Internal Markers. Crop Science. 48:2481-2489.
Dairy Diet Phosphorus and Rainfall Timing Effects on Runoff P from Land-Applied Manure - (Peer Reviewed Journal)
Hanrahan, L.P., Jokela, W.E., Knapp, J.R. 2009. Dairy Diet Phosphorus and Rainfall Timing Effects on Runoff P from Land-Applied Manure. Journal of Environmental Quality. 38:212-217.
Dynamic spatially-explicit mass-balance modeling for targeted watershed phosphorus management I: Model development - (Peer Reviewed Journal)
Meals, D.W., Cassell, E.A., Hughell, D., Wood, L., Jokela, W.E., Parsons, R.L. 2008. Dynamic spatially-explicit mass-balance modeling for targeted watershed phosphorus management I: Model development. Agriculture, Ecosystems and Environment. 127:189-200.
Dynamic spatially-explicit mass-balance modeling for targeted watershed phosphorus management II: Model Application - (Peer Reviewed Journal)
Meals, D.W., Cassell, E.A., Hughell, D., Wood, L., Jokela, W.E., Parsons, R.L. 2008. Dynamic spatially-explicit mass-balance modeling for targeted watershed phosphorus management II: Model Application. Agriculture, Ecosystems and Environment. 127:223-233.
Estimating losses of dry matter from alfalfa-orchardgrass mixtures following rainfall events - (Abstract Only)
Coblentz, W.K., Jokela, W.E. 2008. Estimating losses of dry matter from alfalfa-orchardgrass mixtures following rainfall events. Journal of Dairy Science. 91:27.
Simultaneous Concentration of Pathogenic Viruses, Bacteria and Protozoa from Water Using Sodocalcic Glass Wool Filters - (Abstract Only)
Marrero-Ortiz, R., Bertz, P.D., Spencer, S.K., Volenec, M.J., Jokela, W.E., Borchardt, M.A. 2008. Simultaneous Concentration of Pathogenic Viruses, Bacteria and Protozoa from Water Using Sodocalcic Glass Wool Filters. American Society for Microbiology General Meeting Abstracts.
Ammonia Emissions from Land-Applied Manure: Environmental and Economic Benefits - (Proceedings)
Jokela, W.E., Meisinger, J.J. 2008. Ammonia Emissions from Land-Applied Manure: Environmental and Economic Benefits. Proceedings of the Wisconsin Fertilizer, Aglime and Pest Management Conference. p. 199-208.
Divergent Selection for Phosphorus Concentration in Orchardgrass and Reed Canarygrass - (Peer Reviewed Journal)
Casler, M.D., Undersander, D.J., Jokela, W.E. 2008. Divergent Selection for Phosphorus Concentration in Orchardgrass and Reed Canarygrass. Crop Science.48:119-126.
Cover Crop and Manure Effects on Soil Properties in a Corn Silage System - (Abstract Only)
Jokela, W.E., Grabber, J.H., Karlen, D.L., Balser, T.C. 2007. Cover Crop and Manure Effects on Soil Properties in a Corn Silage System. In: American Society of Agronomy Abstracts. American Society of Agronomy Annual Meeting, November 4-8, 2007, New Orleans, Louisiana. 2007 CDROM.
Cover Crop and Manure Effects on Nutrient Runoff in a Corn Silage System - (Abstract Only)
Jokela, W.E., Grabber, J.H. 2007. Cover Crop and Manure Effects on Nutrient Runoff in a Corn Silage System [abstract]. American Society of Agronomy Abstracts. Paper No. 121-4.
Field-Scale Measurement of Nutrients and Pathogens in Surface Runoff: Methodology and Preliminary Results - (Abstract Only)
Jokela, W.E., Simson, C.R., Borchardt, M., Owens, D. 2006. Field-Scale Measurement of Nutrients and Pathogens in Surface Runoff: Methodology and Preliminary Results. ASA-CSSA-SSSA Annual Meeting Abstracts. Available at http://crops.confex.com/crops/2006am/techprogram/P24299.HTM. 2006 CDROM.
Soil Test Calibration for Predicting Corn Response to Phosphorus in the Northeast USA - (Peer Reviewed Journal)
Heckman, J.R., Jokela, W.E., Morris, T.F., Beegle, D.B., Sims, J.T., Coale, F.J., Herbert, S.J., Griffin, T.S., Hoskins, B., Jemison, J., Sullivan, W.M., Bhumbia, D.K., Estes, G., Reid, W.S. 2006. Soil Test Calibration for Predicting Corn Response to Phosphorus in the Northeast USA. Agronomy Journal. 98:280-288.
Last Modified: 10/1/2014
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