National Program Leader For:

• Developing Decision Support Tools to Incorporate Hemp into Existing Farming Enterprises
  
  Accession Number: 438146
  
  
• Innovative Fertilizer Research for Improved Crop Nutrient Use Efficiency and Reduced Environmental Impacts
  
  Accession Number: 440170
  
  
• Innovative Manure Treatment Technologies and Enhanced Soil Health for Agricultural Systems of the Southeastern Coastal Plain
  
  Accession Number: 440718
  
  
• Sustainable Management of Manure Nutrients and Environmental Contaminants from Beef and Swine Production Facilities
  
  Accession Number: 440922
  
  
• Developing Agronomically and Environmentally Beneficial Management Practices to Increase the Sustainability and Safety of Animal Manure Utilization
  
  Accession Number: 441096
  
  
• Improved Management of Nutrients, Water, Agrochemicals, and Energy to Enhance Agriculture System Sustainability
  
  Accession Number: 441098
  
  
• Managing Nutrients and Assessing Pathogen Emission Risks for Sustainable Dairy Production Systems
  
  Accession Number: 441102
  
  
• Developing Best Management Practices for Poultry Litter to Improve Agronomic Value and Reduce Air, Soil and Water Pollution
  
  Accession Number: 441109
  
  
• Strategies to Manage Feed Nutrients, Reduce Gas Emissions, and Promote Soil Health for Beef and Dairy Cattle Production Systems of the Southern Great Plains
  
  Accession Number: 441154
  
  
• Developing Aspirational Practices Through Improved Process Understanding to Protect Soil and Air Resources and Increase Agricultural Productivity in the Upper Midwest U.S.
  
  Accession Number: 441238
  
  
• Developing Resilient Irrigated Cropping Systems in Concentrated Dairy Production Areas of the Semi-arid West
  
  Accession Number: 441378
  
  
• Advancing Soil Health and Agricultural Performance to Promote Sustainable Intensification and Resilience of Northwest Dryland Cropping Systems
  
  Accession Number: 443381
  
  
• Adaptive Capacity and Ecosystem Service Provisioning on Intermountain Range Sheep Systems Under a Changing Climate
  
  Accession Number: 445039
  
  
• Developing Precision Management Strategies to Enhance Productivity, Biodiversity, and Climate Resilience in Rangeland Social-ecological Systems
  
  Accession Number: 445389
  
  
• Precision Technologies and Management for Northern Plains Rangeland
  
  Accession Number: 445448
  
  
• Developing Climate-Smart Forage and Animal Management Strategies and Precision Technologies for Integrated Crop-Pasture-Livestock Systems in the Northeast
  
  Accession Number: 445602
  
  
• Developing Diversified and Climate Resilient Forage Systems for the Western U.S.
  
  Accession Number: 445622
  
  
• Identifying and Developing Strategies to Enhance Sustainability and Efficiency in Dairy Forage Production Systems
  
  Accession Number: 445642
  
  
• Sagebrush Rangeland Conservation and Restoration
  
  Accession Number: 445713
  
  
• Innovative Forage and Pasture Management Strategies for Dairy Agroecosystems
  
  Accession Number: 445742
  
  
• Increasing Sustainability of Forage Production in Mid-South Agroecosystems
  
  Accession Number: 445756
  
  
• System-based Management and Rehabilitation of Rangelands
  
  Accession Number: 445796
  
  
• Disturbance Mitigation and Adaptive Restoration of Sagebrush-Steppe Ecosystems
  
  Accession Number: 445799
  
  
• Developing Sustainable Turfgrass Systems in the U.S. Southwest
  
  Accession Number: 445800
  
  

Publications (Clicking on the reprint icon will take you to the publication reprint.)

Incorporating model uncertainty into predictions of soil test P - (Abstract Only)

Bolster, C.H., Vadas, P.A. 2023. Incorporating model uncertainty into predictions of soil test P. European Geosciences Union General Assembly Proceedings. https://doi.org/10.5194/egusphere-egu23-7145.

Nitrogen, phosphorus, and snowmelt runoff losses after application of dairy manure with variable solids content - (Peer Reviewed Journal)

Young, E.O., Wilson, M., Sherman, J.F., Vadas, P.A., Arriaga, F., Feyereisen, G.W. 2022. Nitrogen, phosphorus, and snowmelt runoff losses after application of dairy manure with variable solids content. Water: A Multidiscplinary Research Journal. 14(22). Article 3745. https://doi.org/10.3390/w14223745.

Envisioning the manureshed: Towards comprehensive integration of modern crop and animal production - (Peer Reviewed Journal)

Kleinman, P.J., Spiegal, S.A., Silviera, M., Baker, J.M., Dell, C.J., Bittman, S., Cibin, R., Vadas, P.A., Buser, M.D., Tsegaye, T.D. 2022. Envisioning the manureshed: Towards comprehensive integration of modern crop and animal production. Journal of Environmental Quality. 51(4):481-493. https://doi.org/10.1002/jeq2.20382.

Updates to the Annual P Loss Estimator (APLE) model - (Peer Reviewed Journal)

Bolster, C.H., Vadas, P.A. 2022. Updates to the Annual P Loss Estimator (APLE) model. Journal of Environmental Quality. 1-7. https://doi.org/10.1002/jeq2.20378.

Sensitivity and uncertainty analysis for predicted soil test phosphorus using the Annual Phosphorus Loss Estimator model - (Peer Reviewed Journal)

Bolster, C.H., Wessel, B.M., Vadas, P.A., Fiorellino, N.M. 2022. Sensitivity and uncertainty analysis for predicted soil test phosphorus using the Annual Phosphorus Loss Estimator model. Journal of Environmental Quality. 51(2):216-227. https://doi.org/10.1002/jeq2.20328.

Environmental assessment of United States dairy farms - (Peer Reviewed Journal)

Rotz, C.A., Stout, R.C., Leytem, A.B., Feyereisen, G.W., Waldrip, H., Thoma, G., Holly, M., Bjorneberg, D.L., Baker, J.M., Vadas, P.A., Kleinman, P.J. 2021. Environmental assessment of United States dairy farms. Journal of Cleaner Production. 315. Article 128153. https://doi.org/10.1016/j.jclepro.2021.128153.

Environmental assessment of United States dairy farms - (Abstract Only)

Rotz, C.A., Stout, R.C., Leytem, A.B., Feyereisen, G.W., Waldrip, H., Thoma, G., Holly, M., Bjorneberg, D.L., Baker, J.M., Vadas, P.A., Kleinman, P.J. 2021. Environmental assessment of United States dairy farms[abstract]. American Dairy Science Association Abstracts. P.1.

Nutrient loss in snowmelt runoff following dairy manure application on snowpack - (Abstract Only)

Young, E.O., Sherman, J.F., Wilson, M., Vadas, P.A., Motew, M.M. 2019. Nutrient loss in snowmelt runoff following dairy manure application on snowpack. Meeting Abstract. ASA-CSSA-SSSA Annual Meeting. Nov. 10-13, 2019. San Antonio, Texas.

A global perspective on integrated strategies to manage soil phosphorus status for eutrophication control without limiting land productivity - (Peer Reviewed Journal)

Fall tillage reduced nutrient loads from liquid manure application during the freezing season - (Peer Reviewed Journal)

Dynamics of measured and simulated dissolved phosphorus in runoff from winter-applied dairy manure - (Peer Reviewed Journal)

A new modeling environment for integrated dairy systems management - (Peer Reviewed Journal)

Kebreab, E., Reed, K.F., Cabrera, V.E., Vadas, P.A., Thoma, G., Tricarico, J.M. 2019. A new modeling environment for integrated dairy systems management. Animal Frontiers. volume 9, Issue 2, Pages 25-32.

Nutrient mass balance and fate in dairy cattle lots with different surface materials - (Peer Reviewed Journal)

Vadas, P.A., Powell, J.M. 2019. Nutrient mass balance and fate in dairy cattle lots with different surface materials. American Society of Agricultural and Biological Engineers. 62(1):131-138. https://doi.org/10.13031/trans.12901.

Radiative energy absorption of snow after liquid dairy manure application: A field-based, replicated approach - (Peer Reviewed Journal)

Stock, M.N., Arriaga, F.J., Vadas, P.A., Good, L.W., Karthikeyan, K.G. 2019. Radiative energy absorption of snow after liquid dairy manure application: A field-based, replicated approach. Water Resources Research. 569:51-60.

Modeling phosphorus losses from soils amended with cattle manure and chemical fertilizers - (Peer Reviewed Journal)

Wang, Z., Zhang, T.Q., Vadas, P.A., Qi, Z.M., Wellen, C. 2018. Modeling phosphorus losses from soils amended with cattle manure and chemical fertilizers. Science of the Total Environment. 639:580-587.

Estimating legacy soil phosphorus impacts on phosphorus loss in the Chesapeake Bay watershed - (Peer Reviewed Journal)

Vadas, P.A., Fiorellino, N.M., Coale, F.J., Kratochvil, R., Mulkey, A.S. 2018. Estimating legacy soil phosphorus impacts on phosphorus loss in the Chesapeake Bay Watershed. Journal of Environmental Quality. 47:480-486.

Nutrient concentrations in leachate and runoff from dairy cattle lots with different surface materials - (Peer Reviewed Journal)

Effect of temperature and manure placement in a snowpack on nutrient release from dairy manure during snowmelt - (Peer Reviewed Journal)

Vadas, P.A., Stock, M.N., Feyereisen, G.W., Arriaga, F.J., Good, L.W., Karthikeyan, K.G. 2018. Effect of temperature and manure placement in a snowpack on nutrient release from dairy manure during snowmelt. Journal of Environmental Quality. 47:848-855.

Identifying challenges and opportunities for improved nutrient management through U.S.D.A's Dairy Agroecosystem Working Group - (Peer Reviewed Journal)

Holly, M.A., Kleinman, P.J., Bryant, R.B., Bjorneberg, D.L., Church, C., Baker, M.E., Boggess, M.V., Chintala, R., Feyereisen, G.W., Gamble, J.D., Leytem, A.B., Reed, K., Rotz, C.A., Vadas, P.A., Waldrip, H., Brauer, D.K. 2018. Identifying challenges and opportunities for improved nutrient management through U.S.D.A's Dairy Agroecosystem Working Group. Journal of Dairy Science. 101:1-10. https://doi.org/10.3168/jds.2017-13819.

Identifying challenges and opportunities for improved nutrient management through U.S.D.A's Dairy Agroecosystem Working Group - (Peer Reviewed Journal)

Holly, M.A., Kleinman, P.J., Bryant, R.B., Bjorneberg, D.L., Rotz, C.A., Baker, J.M., Boggess, M.V., Brauer, D.K., Chintala, R., Feyereisen, G.W., Gamble, J.D., Leytem, A.B., Reed, K., Vadas, P.A., Waldrip, H. 2018. Identifying challenges and opportunities for improved nutrient management through U.S.D.A's Dairy Agroecosystem Working Group. Journal of Dairy Science. 101(7):6632-6641. https://doi.org/10.3168/jds.2017-13819.

Comparison of two methods for calculating the P sorption capacity parameter in soils - (Peer Reviewed Journal)

Bolster, C.H., Vadas, P.A. 2018. Comparison of two methods for calculating the P sorption capacity parameter in soils. Soil Science Society of America Journal. 82(2):493-501. https://doi.org/10.2136/sssaj2017.09.0317.

Underestimation of simulated N2O flux in a model comparison of DayCent, DNDC, and EPIC - (Peer Reviewed Journal)

Gaillard, R.K., Jones, C.D., Ingraham, P., Collier, S., Izaurralde, R.C., Jokela, W.E., Osterholz, W., Salas, W., Vadas, P.A., Ruark, M. 2018. Underestimation of simulated N2O flux in a model comparison of DayCent, DNDC, and EPIC. Ecological Applications. 28:694-708.

Limitations in estimating phosphorus sorption capacity from soil properties - (Abstract Only)

Bolster, C.H., Vadas, P.A. 2017. Limitations in estimating phosphorus sorption capacity from soil properties. Soil Science Society of America Annual Meeting. Paper No. 216-4.

Dairy production systems in the United States: Nutrient budgets and environmental impacts - (Abstract Only)

Dairy production systems in the United States: Nutrient budgets and environmental impacts - (Abstract Only)

Bryant, R.B., Rotz, C.A., Kleinman, P.J., Bjomeberg, D., Leytem, A.B., Baker, J.M., Feyereisen, G.W., Vadas, P.A., Bjorneberg, D.L. 2017. Dairy production systems in the United States: In:BurchillW., Richards K.G. and Lanigan G.J.(Eds). Proceedings of the 17th RAMIRAN Conference-Sustainable utilization of manures and residue resources in agriculture,September 4-6,2017,Wexford, Ireland.P.155.

Use of annual phosphorus loss estimator (APLE) model to evaluate a phosphorus index - (Peer Reviewed Journal)

Fiorellino, N.M., McGrath, J.M., Vadas, P.A., Bolster, C.H., Coale, F.J. 2017. Use of annual phosphorus loss estimator (APLE) model to evaluate a phosphorus index. Journal of Environmental Quality. doi:10.2134/jeq2016.05.0203 46(6):1380-1387.

Assessing regional differences in nitrogen losses from U.S. dairy farms using the integrated farm systems model - (Abstract Only)

Reed, K., Vadas, P.A., Rotz, C.A., Feyereisen, G.W., Gamble, J.D. 2017. Assessing regional differences in nitrogen losses from U.S. dairy farms using the integrated farm systems model. Meeting Abstract. 2017 ADSA Annual Meeting, Pittsburgh, PA.

The influence of legacy P on lake water quality in a Midwestern agricultural watershed - (Peer Reviewed Journal)

Motew, M., Chen, X., Booth, E.G., Carpenter, S.R., Pinkas, P., Zipper, S., Loheide, S.P., Donner, S., Vadas, P.A., Kucharik, C. 2017. The influence of legacy P on lake water quality in a Midwestern agricultural watershed. Ecosystems. doi:10.1007/s10021-017-0125-0.

Establishing alfalfa in corn silage - (Proceedings)

Grabber, J.H., Renz, M.J., Riday, H., Osterholtz, W.R., Lauer, J.G., Vadas, P.A. 2017. Establishing alfalfa in corn silage. In: Proceedings of 2017 Wisconsin Agribusiness Classic, January 10-12, 2017, Madison, Wisconsin. p. 67.

Comparison of process-based models to quantify nutrient flows and greenhouse gas emissions of milk production - (Peer Reviewed Journal)

Veltman, K., Jones, C., Izaurralde, R., Reddy, A., Gaillard, R., Duval, B., Cela, S., Ketterings, Q.M., Rotz, C.A., Salas, W., Vadas, P.A., Jolliet, O. 2017. Comparison of process-based models to quantify nutrient flows and greenhouse gas emissions of milk production. Agriculture, Ecosystems and Environment. 237:31-44.

Quantifying the impact of seasonal and short-term manure application decisions on phosphorus loss in surface runoff - (Peer Reviewed Journal)

Vadas, P.A., Good, L., Jokela, W.E., Karthikeyan, K.G., Arriaga, F., Stock, M. 2017. Quantifying the impact of seasonal and short-term manure application decisions on phosphorus loss in surface runoff. Journal of Environmental Quality. doi:10.2134/jeq2016.06.0220.

Revised method and outcomes for estimating soil phosphorus losses from agricultural land in the Chesapeake Bay watershed model - (Peer Reviewed Journal)

Mulkey, A., Coale, F., Vadas, P.A., Shenk, G., Bhatt, G. 2016. Revised method and outcomes for estimating soil phosphorus losses from agricultural land in the Chesapeake Bay watershed model. Journal of Environmental Quality. doi:10.2134/jeq2016.05.0201.

Substitutions of corn silage, alfalfa silage and corn grain in cow rations impact N use and N loss from dairy farms - (Proceedings)

Establishing alfalfa in silage corn - (Abstract Only)

Grabber, J.H., Renz, M.J., Riday, H., Osterholtz, W.R., Lauer, J.G., Vadas, P.A. 2016. Establishing alfalfa in silage corn [abstract]. Agricultural Experiment Station Publication. Paper No. 15.

Potential for reducing on-farm greenhouse gas and ammonia emissions from dairy cows with prolonged diet alterations - (Peer Reviewed Journal)

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. 227:329.

Model parameter uncertainty analysis for annual field-scale P loss model - (Peer Reviewed Journal)

Bolster, C.H., Vadas, P.A., Boykin, D. 2016. Model parameter uncertainty analysis for annual field-scale P loss model. Journal of Hydrology. 539:27-37. doi: 10.1016/j.jhydrol.2016.05.009.

Exploring agricultural production systems and their fundamental components with system dynamics modeling - (Peer Reviewed Journal)

Walters, J.P., Archer, D.W., Sassenrath, G.F., Hendrickson, J.R., Hanson, J.D., Halloran, J.M., Vadas, P.A., Alarcon, V.J. 2016. Exploring agricultural production systems and their fundamental components with system dynamics modeling. Ecological Modeling. 333:51-65.

Improved simulation of edaphic and manure phosphorus loss in SWAT - (Peer Reviewed Journal)

Collick, A.S., Veith, T.L., Fuka, D.R., Kleinman, P.J., Buda, A.R., Weld, J.L., Bryant, R.B., Vadas, P.A., White, M.J., Harmel, R.D., Easton, Z.M. 2016. Improved simulation of edaphic and manure phosphorus loss in SWAT. Journal of Environmental Quality. 45(4):1215-1225. doi:10.2134/jeq2015.03.0135.

Enhancing forage yields and soil conservation by interseeding alfalfa into silage corn - (Abstract Only)

A new tool for estimating phosphorus loss from cattle barnyards and outdoor lots - (Proceedings)

Vadas, P.A., Good, L.W., Panuska, J.C., Busch, D.L., Larson, R.A. 2016. A new tool for estimating phosphorus loss from cattle barnyards and outdoor lots. Meeting Proceedings. Madison, WI.

Gas emissions from dairy barnyards - (Peer Reviewed Journal)

Powell, J.M., Vadas, P.A. 2016. Gas emissions from dairy barnyards. Animal Production Science. 56:355–361.

Improved simulation of edaphic and manure phosphorus loss in SWAT and TopoSWAT - (Abstract Only)

Collick, A.S., Veith, T.L., Fuka, D., Kleinman, P.J., Weld, J.L., Vadas, P.A., White, M.J., Harmel, R.D., Easton, Z.M. 2015. Improved simulation of edaphic and manure phosphorus loss in SWAT and TopoSWAT. Soil and Water Assessment Tool International Conference. p. 91.

Whole-farm phosphorus loss from grazing-based dairy farms - (Peer Reviewed Journal)

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.

A new model for phosphorus loss in runoff from outdoor cattle lots - (Peer Reviewed Journal)

Vadas, P.A., Busch, D.L., Good, L.W., Larson, R.A., Panuska, J.C. 2015. A new model for phosphorus loss in runoff from outdoor cattle lots. Transactions of the ASABE. 58:1035-1045.

Model parameter uncertainty analysis for an annual field-scale phosphorus loss model - (Abstract Only)

Bolster, C.H., Vadas, P.A., Boykin, D.L. 2015. Model parameter uncertainty analysis for an annual field-scale phosphorus loss model. Meeting Abstract #94.

Monitoring runoff from cattle-grazed pastures for a phosphorus loss quantification tool - (Peer Reviewed Journal)

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.

Parameter uncertainty analysis for the annual phosphorus loss estimator (APLE) model - (Abstract Only)

Bolster, C.H., Vadas, P.A., Boykin, D.L. 2014. Parameter uncertainty analysis for the annual phosphorus loss estimator (APLE) model. ASA-CSSA-SSSA Annual Meeting Abstracts. Abstract.

Estimating the magnitude of prediction uncertainties for the APLE model - (Abstract Only)

Bolster, C.H., Vadas, P.A., Boykin, D.L. 2014. Estimating the magnitude of prediction uncertainties for the APLE model. SERA-IEG 17 Bulletin. Abstract.

Refining models for quantifying the water quality benefits of improved animal management for use in water quality trading - (Other)

Olander, L., Walter, T., Vadas, P.A., Heffernam, J., Kebriab, E., Ribaudo, M., Harter, T. 2014. Refining models for quantifying the water quality benefits of improved animal management for use in water quality trading. Government Publication/Report. NIR 14-03.

Enteric methane in dairy cattle production: Quantifying the opportunities and impact of reducing emissions - (Peer Reviewed Journal)

Knapp, J.R., Laur, G.L., Vadas, P.A., Weiss, W.P., Tricarico, J.M. 2014. Enteric methane in dairy cattle production: Quantifying the opportunities and impact of reducing emissions. Journal of Dairy Science. 97:3231-3261.

Monitoring nutrient loss in runoff from dairy cattle lots - (Peer Reviewed Journal)

Vadas, P.A., Powell, J.M. 2013. Monitoring nutrient loss in runoff from dairy cattle lots. Agriculture, Ecosystems and Environment. 181:127-133.

Uncertainty analysis for a field-scale P loss model - (Abstract Only)

Bolster, C.H., Vadas, P.A. 2013. Uncertainty analysis for a field-scale P loss model. ASA-CSSA-SSSA Annual Meeting Abstracts. Abstract.

Uncertainty analysis for a field-scale P loss model - (Abstract Only)

Bolster, C.H. 2013. Uncertainty analysis for a field-scale P loss model. 5th International Phosphorus Workshop(IPW5). Abstract.

Sensitivity and uncertainty analysis for the annual phosphorus loss estimator model - (Peer Reviewed Journal)

Bolster, C.H., Vadas, P.A. 2013. Sensitivity and uncertainty analysis for the annual phosphorus loss estimator model. Journal of Environmental Quality. 42:1109-1118.

Production costs of potential corn stover harvest and storage systems - (Peer Reviewed Journal)

Vadas, P.A., Digman, M.F. 2013. Production costs of potential corn stover harvest and storage systems. Biomass and Bioenergy. 54:133-139.

Greenhouse gas fluxes from experimental dairy barnyards - (Proceedings)

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.

Technical guidance for assessing phosphorus indices - (Other)

Sharpley, A., Bolster, C.H., Conover, C., Dayton, E., Davis, J., Easton, Z., Good, L., Gross, C., Kleinman, P., Mallinaro, A., Moffitt, D., Nelson, N., Norfleet, L., Osmond, D., Perry, R., Thompson, A., Vadas, P.A., White, M.J. 2013. Technical guidance for assessing phosphorus indices. SERA-IEG 17 Bulletin. 417:78.

Sensitivity and uncertainty analysis for a field-scale P loss model - (Abstract Only)

Bolster, C.H., Vadas, P.A. 2013. Sensitivity and uncertainty analysis for a field-scale P loss model. American Water Resources Association Conference Proceedings. Abstract.

Critical evaluation of models used to study agricultural phosphorus and water quality - (Peer Reviewed Journal)

Vadas, P.A., Bolster, C.H., Good, L.W. 2013. Critical evaluation of models used to study agricultural phosphorus and water quality. Soil Use and Management. 29:36-44.

Phosphorus indices: why we need to take stock of how we are doing - (Peer Reviewed Journal)

Sharpley, A., Beegle, D., Bolster, C., Good, L., Joern, B., Ketterings, Q., Lory, J., Mikkelsen, R., Osmond, D., Vadas, P. 2012. Phosphorus indices: why we need to take stock of how we are doing. Journal of Environmental Quality. 41(6):1711-1719.

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.

Using a phosphorus loss model to evaluate and improve phosphorus indices - (Peer Reviewed Journal)

Bolster, C.H., Vadas, P.A., Sharpley, A.N., Lory, J.A. 2012. Using a phosphorus loss model to evaluate and improve phosphorus indices. Journal of Environmental Quality. 41(6):1758-1766.

Simulating soil phosphorus dynamics for a phosphorus loss quantification tool - (Peer Reviewed Journal)

Vadas, P.A., Joern, B.C., Moore Jr, P.A. 2012. Simulating soil phosphorus dynamics for a phosphorus loss quantification tool. Journal of Environmental Quality. 41:1750-1757.

Watershed-level comparison of predictability and sensitivity of two phosphorus models - (Peer Reviewed Journal)

Sen, S., Srivastava, P., Vadas, P.A., Kalin, L. 2012. Watershed-level comparison of predictability and sensitivity of two phosphorus models. Journal of Environmental Quality. 41:1642-1652.

Economics of growth regulator treatment of alfalfa seed for interseeding into silage corn - (Proceedings)

Grabber, J.H., Vadas, P.A. 2011. Economics of growth regulator treatment of alfalfa seed for interseeding into silage corn [abstract]. Plant Growth Regulator Society of America. P4.

Phosphorus indices and the 590 Revision: Why we need to take stock of how we are doing . - (Abstract Only)

Sharpley, A., Beegle, D., Bolster, C.H., Good, L., Joern, B., Ketterings, Q., Lory, J., Mikkelsen, R., Osmond, D., Vadas, P.A. 2011. Phosphorus indices and the 590 Revision: Why we need to take stock of how we are doing .. ASA-CSSA-SSSA Annual Meeting Abstracts. Abstract Only.

Using a P loss model to evaluate and improve P indices - (Abstract Only)

Bolster, C.H., Vadas, P.A., Sharpley, A.N., Lory, J.A. 2011. Using a P loss model to evaluate and improve P indices. ASA-CSSA-SSSA Annual Meeting Abstracts. Abstract Only.

Methods to evaluate and update current phosphorus indices - (Abstract Only)

Bolster, C.H., Vadas, P.A., Sharpley, A.N., Lory, J. 2011. Methods to evaluate and update current phosphorus indices. SERA-IEG 17 Bulletin. Abstract only.

Application of principles of integrated agricultural systems: results from farmer panels - (Peer Reviewed Journal)

Halloran, J.M., Sassenrath, G.F., Hendrickson, J.R., Hanson, J.D., Archer, D.W., Vadas, P.A. 2011. Application of principles of integrated agricultural systems: results from farmer panels. Journal of Agricultural Science. B1:638-644.

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.

Revision of the 590 nutrient management standard: SERA-17 recommendations - (Other)

Sharpley, A., Beegle, D., Bolster, C.H., Good, L., Joern, B., Ketterings, Q., Lory, J., Mikkelsen, R., Osmond, D., Vadas, P.A. 2011. Revision of the 590 nutrient management standard: SERA-17 recommendations. SERA-IEG 17 Bulletin. White Paper.

Sediment and particulate phosphorus characteristics in grassed waterways from row crop corn and alfalfa fields collected using manual University of Exeter and automatic sampling - (Peer Reviewed Journal)

Panuska, J.C., Good, L.W., Vadas, P.A., Busch, D., Ozkaynak, A. 2011. Sediment and particulate phosphorus characteristics in grassed waterways from row crop corn and alfalfa fields collected using manual University of Exeter and automatic sampling. Hydrological Processes. 25:2329-2338.

A new model for dung decomposition and phosphorus transformations and loss in runoff - (Peer Reviewed Journal)

Vadas, P.A., Aarons, S.R., Butler, D.M., Dougherty, W.J. 2011. A new model for dung decomposition and phosphorus transformations and loss in runoff. Australian Journal of Soil Science. 49:367-375.

Modeling Field-Scale Phosphorus Transfer: Model Strengths and Weaknesses, Gaps in Knowledge, and the Role for Scientists - (Proceedings)

Integrated Agricultural Systems Workgroup - (Abstract Only)

Sassenrath, G.F., Hendrickson, J.R., Archer, D.W., Halloran, J.M., Vadas, P.A., Huggins, D.R. 2010. Integrated Agricultural Systems Workgroup. Agriculture, Food, and Human Values Annual Meeting, CDROM.

Validating soil phosphorus routines in the SWAT model - (Peer Reviewed Journal)

Vadas, P.A., White, M.J. 2010. Validating soil phosphorus routines in the SWAT model. Transactions of the ASABE. 53(5):1469-1476.

Drivers Impacting the Adoption of Sustainable Agricultural Management Practices and Production Systems of the Northeast and Southeast U.S - (Peer Reviewed Journal)

Sassenrath, G.F., Halloran, J.M., Raper, R.L., Vadas, P.A., Hendrickson, J.R., Archer, D.W., Hanson, J.D. 2010. Drivers Impacting the Adoption of Sustainable Agricultural Management Practices and Production Systems of the Northeast and Southeast U.S. Journal of Sustainable Agriculture. 34:680-702.

Modeling phosphorus transformations and runoff loss for surface-applied manure - (Book / Chapter)

Vadas, P.A. 2010. Modeling phosphorus transformations and runoff loss for surface-applied manure. In: He, Z., editor. Environmental Chemistry of Animal Manure. New York, NY:Nova Science Publishers. p. 130-138.

Exploring Agricultural Production Systems and Their Fundmental Components With Dynamic Modeling - (Proceedings)

Sassenrath, G.F., Hanson, J.D., Hendrickson, J.R., Archer, D.W., Halloran, J.M., Vadas, P.A. 2009. Exploring Agricultural Production Systems and Their Fundmental Components With Dynamic Modeling. Meeting Proceedings Farming Systems Design Conference, August 23-26, 2009, Monterey, California. 2009 CDROM

Estimating Phosphorus Loss in Runoff from Manure and Fertilizer for a Phosphorus Loss Quantification Tool - (Peer Reviewed Journal)

Vadas, P.A., Good, L.W., Moore Jr, P.A., Widman, N. 2009. Estimating Phosphorus Loss in Runoff from Manure and Fertilizer for a Phosphorus Loss Quantification Tool. Journal of Environmental Quality. 38:1645-1653.

AN EMPIRICAL MODEL FOR DISSOLVED PHOSPHORUS IN RUNOFF FROM SURFACE-APPLIED FERTILIZERS - (Peer Reviewed Journal)

Vadas, P.A., Owens, L.B., Sharpley, A.N. 2008. An empirical model for dissolved phosphorus in runoff from surface-applied fertilizers. Agriculture Ecosystems and the Environment. 127:59-65.

ESTIMATING SURFACE RUNOFF LOSS OF DISSOLVED PHOSPHORUS FROM MANURE APPLICATIONS TO CROPLAND FOR THE WISCONSIN PHOSPHOROUS INDEX - (Abstract Only)

Good, L.W., Vadas, P.A. 2008. Estimating surface runoff loss of dissolved phosphorus from manure applications to cropland for the Wisconsin Phosphorous Index [abstract]. American Water Resources Association Wisconsin Section 2008 Meeting, March 6-7, 2008, Brookfield, Wisconsin. p. 10.

ECONOMICS AND ENERGY OF ETHANOL PRODUCTION FROM ALFALFA, CORN, AND SWITCHGRASS IN THE UPPER MIDWEST, USA - (Peer Reviewed Journal)

Vadas, P.A., Barnett, K.H., Undersander, D.J. 2008. Economics and energy of ethanol production from alfalfa, corn, and switchgrass in the Upper Midwest, USA. Bioenergy Research. 1:44-55.

ECONOMICS AND ENERGY OF ETHANOL PRODUCTION FROM ALFALFA, CORN, AND SWITCHGRASS IN THE UPPER MIDWEST - (Popular Publication)

Vadas, P.A., Barnett, K.H., Undersander, D.J. 2007. Economics and energy of ethanol production from alfalfa, corn, and switchgrass in the Upper Midwest. Forage Focus. December 2007:p. 4-5.

PHOSPHORUS RUNOFF LOSS RISK ASSESSMENT FOR UNINCORPORATED MANURE AND FERTILIZER APPLICATIONS - (Abstract Only)

Good, L.W., Vadas, P.A. 2007. Phosphorus runoff loss risk assessment for unincorporated manure and fertilizer applications [abstract]. American Society of Agronomy Annual Meeting, November 4-8, 2007, New Orleans, Louisiana. Abstract No. 1615.

PREDICTING MANAGEMENT EFFECTS ON PHOSPHORUS LOSS FROM FARMING SYSTEMS - (Peer Reviewed Journal)

Sedorovich, D.M., Rotz, C.A., Vadas, P.A., Harmel, R.D. 2007. Predicting management effects on phosphorus loss from farming systems. Transactions of the American Society of Agricultural Engineers. 50(4):1443-1453.

NITROGEN EXPORT FROM COASTAL PLAIN FIELD DITCHES - (Peer Reviewed Journal)

Schmidt, J.P., Dell, C.J., Vadas, P.A., Allen, A.L. 2007. Nitrogen export from coastal plain field ditches. Journal of Soil and Water Conservation. 62(4):235-243.

HYDROLOGY AND GROUNDWATER NUTRIENT CONCENTRATIONS IN A DITCH-DRAINED AGRO-ECOSYSTEM - (Peer Reviewed Journal)

Vadas, P.A., Srinivasan, M.S., Kleinman, P.J., Schmidt, J.P., Allen, A.L. 2007. Hydrology and groundwater nutrient concentrations in a ditch-drained agro-ecosystem. Journal of Soil and Water Conservation. 62(4):178-188.

Dynamics of phosphorus transfers from heavily manured coastal plain soils to drainage ditches - (Peer Reviewed Journal)

Kleinman, P.J., Allen, A.L., Needelman, B.A., Sharpley, A.N., Vadas, P.A., Saporito, L.S., Folmar, G.J., Bryant, R.B. 2007. Dynamics of phosphorus transfers from heavily manured coastal plain soils to drainage ditches. Journal of Soil and Water Conservation. 62(4):225-234.

TRANSFORMATIONS OF SOIL AND MANURE PHOSPHORUS AFTER SURFACE APPLICATION OF MANURE TO FIELD PLOTS - (Peer Reviewed Journal)

Vadas, P.A., Harmel, R.D., Kleinman, P.J. 2007. Transformations of soil and manure phosphorus after surface application of manure to field plots. Nutrient Cycling in Agroecosystems. 77:83-99.

A MODEL FOR PHOSPHORUS TRANSFORMATION AND RUNOFF LOSS FOR SURFACE-APPLIED MANURES - (Peer Reviewed Journal)

Vadas, P.A., Gburek, W., Sharpley, A.N., Kleinman, P.J., Moore Jr, P.A., Cabrera, M.L., Harmel, R.D. 2007. A model for phosphorus transformation and runoff loss for surface-applied manures. Journal of Environmental Quality. 36:324-332.

EFFECT OF METHODOLGY IN ESTIMATING AND INTERPRETING WATER-EXTRACTABLE PHOSPHORUS IN ANIMAL MANURES - (Peer Reviewed Journal)

Vadas, P.A., Kleinman, P.J. 2006. Effect of methodolgy in estimating and interpreting water-extractable phosphorus in animal manures. Journal of Environmental Quality. 35:1151-1159.

THE IMPORTANCE OF SAMPLING DEPTH WHEN TESTING SOILS FOR THEIR POTENTIAL TO SUPPLY PHOSPHORUS TO SURFACE RUNOFF - (Other)

Vadas, P.A., Mallarino, A.P., Mcfarland, A. 2006. THE IMPORTANCE OF SAMPLING DEPTH WHEN TESTING SOILS FOR THEIR POTENTIAL TO SUPPLY PHOSPHORUS TO SURFACE RUNOFF. Extension Fact Sheets. p. 1.

DISTRIBUTION OF PHOSPHORUS IN MANURE SLURRIES AND ITS INFILTRATION UPON APPLICATION TO SOILS - (Peer Reviewed Journal)

Vadas, P.A. 2006. Distribution of phosphorus in manure slurries and its infiltration upon application to soils. Journal of Environmental Quality. 35:542-547.

MODELING PHOSPHORUS TRANSFER BETWEEN LABILE AND NON-LABILE SOIL POOLS: UPDATING THE EPIC MODEL - (Peer Reviewed Journal)

Vadas, P.A., Krogstad, T., Sharpley, A.N. 2006. Modeling phosphorus transfer between labile and non-labile soil pools: updating the epic model. Soil Science Society of America Journal. 70:736-743.

EFFECT OF POULTRY LITTER TO WATER RATIOS ON EXTRACTABLE PHOSPHORUS CONTENT AND ITS RELATION WITH RUNOFF PHOSPHORUS CONCENTRATIONS - (Peer Reviewed Journal)

Haggard, B.E., Vadas, P.A., Smith, D.R., Delaune, P., Moore Jr., P.A. 2005. Effect of poultry litter to water ratios on extractable phosphorus content and its relation with runoff phosphorus concentrations. Biosystems Engineering. 92(3):409-417.

PREDICTING MANAGEMENT EFFECTS ON PHOSPHORUS LOSS FROM FARMING SYSTEMS - (Proceedings)

Sedorovich, D., Rotz, C.A., Vadas, P.A. 2005. Predicting management effects on phosphorus loss from farming systems. American Society of Agricultural Engineers Meetings Papers. Paper No. 053053.

VARIABILITY IN N AVAILABILITY TO CORN FOR VARIOUS LANDSCAPE POSITIONS - (Abstract Only)

Schmidt, J.P., Allen, A., Kleinman, P.J., Srinivasan, M.S., Vadas, P.A. 2005. Variability in n availability to corn for various landscape positions [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Paper No. 6-23.

RELATING SOIL PHOSPHORUS TO DISSOLVED PHOSPHORUS IN RUNOFF: A SINGLE EXTRACTION COOEFFICIENT FOR WATER QUALITY MODELING - (Peer Reviewed Journal)

Vadas, P.A., Kleinman, P.J., Sharpley, A.N. 2005. Relating soil phosphorus to dissolved phosphorus in runoff: a single extraction cooefficient for water quality modeling. Journal of Environmental Quality. 34:572-580.

PREDICTING DISSOLVED PHOSPHORUS IN RUNOFF FROM MANURED FIELD-PLOTS - (Peer Reviewed Journal)

Vadas, P.A., Haggard, B.E., Gburek, W.J. 2005. Predicting dissolved phosphorus in runoff from manured field-plots. Journal of Environmental Quality. 34:1347-1353.

EFFECT OF POULTRY DIET ON PHOSPHORUS LOSS IN RUNOFF FROM SOILS AMENDED WITHPOULTRY MANURE AND COMPOST - (Peer Reviewed Journal)

Vadas, P.A., Meisinger, J.J., Sikora, L.J., Mcmurtry, J.P. 2004. Effect of poultry diet on phosphorus loss in runoff from soils amended withpoultry manure and compost. Journal of Environmental Quality. 33(5):1845-1854.

THE NATIONAL PHOSPHORUS RESEARCH PROJECT: IMPLICATIONS TO SOIL AND MANURE TESTING - (Proceedings)

Kleinman, P.J.A, Sharpley, A.N., Vadas, P.A. 2004. The National Phosphorus Research Project: Implications to Soil and Manure Testing and Plant Analysis (NCR 13). February 24-25, 2004. Des Moines, IA. p. 1-6.

USING PACKED SOIL BOXES TO STUDY PHOSPHORUS TRANSPORT IN SURFACE RUNOFF - (Peer Reviewed Journal)

Kleinman, P.J., Sharpley, A.N., Veith, T.L., Maguire, R.0., Vadas, P.A. 2004. Evaluation of phosphorus transport in surface runoff from packed soil boxes. Journal of Environmental Quality. 33:1413-1423.

A SIMPLE METHOD TO PREDICT DISSOLVED PHOSPHORUS IN RUNOFF FROM SURFACE APPLIED MANURES - (Peer Reviewed Journal)

Vadas, P.A., Kleinman, P.J.A., Sharpley, A.N. 2004. A simple method to predict dissolved phosphorus in runoff from surface applied manures. Journal of Environmental Quality. 33:749-756.

DEVELOPMENT OF THE PHOSPHORUS LEACHING COMPONENT OF MARYLAND'S PHOSPHORUS SITE INDEX - (Abstract Only)

Vadas, P.A., Meisinger, J.J. 2002. Development of the phosphorus leaching component of maryland's phosphorus site index. BARC Poster Day.

USE OF WELL SLUG TESTS TO EVALUATE SOIL HYDRAULIC PROPERTIES IN ATLANTIC COASTAL PLAIN SOILS - (Abstract Only)