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United States Department of Agriculture

Agricultural Research Service

Peter Vadas
U.S. Dairy Forage Research Center
Soil Scientist

Phone: (608) 890-0069
Fax: (608) 890-0076
Room 256
1925 LINDEN DRIVE WEST
MADISON, WI, 53706

Projects
IMPROVEMENT OF DAIRY FORAGE AND MANURE MANAGEMENT TO REDUCE ENVIRONMENTAL RISK
Appropriated (D)
  Accession Number: 420140
Multi-scale Investigation of Winter Runoff and Nutrient Loss Processes in Actively Managed Dairy Agroecosystems
Reimbursable (R)
  Accession Number: 424880
Climate Change Mitigation and Adaptation in Dairy Production Systems of the Great Lakes Region
Reimbursable (R)
  Accession Number: 425027

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
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.
Mitigating enteric methane emissions: Where are the biggest opportunities - (Peer Reviewed Journal) - (19-Mar-14)
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 P loss estimator (APLE) model Reprint Icon - (Peer Reviewed Journal)
Bolster, C.H., Vadas, P.A. 2013. Sensitivity and uncertainty analysis for the annual P loss estimator (APLE) model. Journal of Environmental Quality. 42:1-10.
Production costs of potential corn stover harvest and storage systems Reprint Icon - (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 Reprint Icon - (Peer Reviewed Journal)
Sharpley, A., Beegle, D., Bolster, C.H., Good, L., Joern, B., Ketterings, Q., Lory, J., Mikkelsen, R., Osmond, D., Vadas, P.A. 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 P loss model to evaluate and improve P indexes Reprint Icon - (Peer Reviewed Journal)
Bolster, C.H., Vadas, P.A., Sharpley, A.N., Lory, J.A. 2012. Using a P loss model to evaluate and improve P indexes. Journal of Environmental Quality. 41:1758-1766.
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.
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.
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.
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) - (09-Sep-10)
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 Reprint Icon - (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 Reprint Icon - (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 Reprint Icon - (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 Reprint Icon - (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 Reprint Icon - (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 Reprint Icon - (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) - (20-Dec-01)
ARS News Articles
Last Modified: 8/27/2014