Projects

Adding Value to Biofuels Production Systems Based on Perennial Forages Appropriated (D)   Accession Number: 418601

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

Publications

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

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)

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)

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/Symposium)

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)

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/Symposium)

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)

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