Matt Ruark – Professor
Soil fertility and nutrient management.
UW-Madison, Department of Soil Science
1525 Observatory Drive
Madison, WI 53706-1299, USA
Office: 158 Soil Science
- Department of Soil Science
- Nelson Institute of Environmental Studies
- Faculty Advisor, UW-Discovery Farms program
- Faculty Advisor, Wisconsin Agri-Business Association
- Executive Committee, Midwest Cover Crops Council
- Associate Editor, Agronomy Journal
- Project Director for Sustainable Dairy, a $10 million USDA-NIFA-ARFI funded research, teaching, and extension project (sustainabledairy.org)
- B.S. Environmental Science, 1999, University of Minnesota
- M.S. Soil Science, 2002, University of Minnesota
- Ph.D. Agronomy, 2006, Purdue University
- Postdoctoral Researcher, 2006-2008, University of California-Davis
Teaching and Research Overview
I run a fully integrated research and extension program. The priorities of my Nutrient Cycling and Agroecosystems Laboratory are to: (1) improve the understanding of carbon and nitrogen cycling in dairy production systems, (2) evaluate nitrogen fertilizer sources across different soil types and cropping systems to improve production and use efficiency while reducing impacts to surface and groundwater, (3) assess the role of soil physical and biological measurement for use in nutrient management planning, and (4) evaluate the benefits of cover crop for crop production and soil health.
Current research projects:
- Greenhouse gas mitigation in dairy production systems
- Climate change adaptation of dairy production systems
- Nitrogen supply of legume and brassica cover crops
- Use of cover crops with fall manure applications
- Interseeding cover crops into corn, soybean, and wheat
- Use of cover crops on sandy soil
Potato and Vegetables
- Improving nitrogen use efficiency in potato, sweet corn, and snap bean production
- Combining plant growth and nitrogen leaching models to improve in-season N management on sandy soil
- Impacts of crop management on measures of soil health
- Connecting soil health measures to crop productivity
- Reducing nitrogen leaching on sandy soils
- Reducing nitrogen and phosphorus losses from surface flow and tile drainage across Wisconsin production systems
Rolph, K.A., C.E. Forest, and M.D. Ruark. 2019. The role of non-CO2 mitigation options within the dairy industry for pursuing climate change targets. Env. Res. Let. Open Access: https://iopscience.iop.org/article/10.1088/1748-9326/ab28a3.
Zopp, Z.P., M.D. Ruark, A.M. Thompson, T.D. Stutebeck, E. Cooley, A. Radatz, and T. Radatz. 2019. Effects of manure and tillage on edge-of-field phosphorus loss in seasonally frozen landscapes. J. Environ. Qual. 48:966–977.
Kim, D., N. Stoddart, C.A. Rotz, K. Veltman, L. Chase, J. Cooper, P. Ingraham, R.C. Izaurralde, C.D. Jones, R.G. Gaillard, H.A. Aguirre-Villegas, R.A. Larson, M.D. Ruark, W. Salas, O. Jolliet, G.J. Thoma. 2019. Analysis of beneficial management practices to mitigate environmental impacts in dairy production systems around the Great Lakes. Agric. Systems 176:102660.
Rui, Y., M.D. Ruark, T.A. Andraski, and L.G. Bundy. 2019. Assessing the benefit of polymer-coated urea for corn production on irrigated sandy soils. Agron. J. 111:473–481.
Nocco, M., M.D. Ruark, and C. Kucharik. 2019. Apparent electrical conductivity predicts physical properties of coarse soils. Geoderma 335:1–11.
Zegler, C., G. Bring, M.J. Renz, M.D. Ruark, and M.D. Casler. 2018. Management effects on sward productivity, nutritive value, and legume persistence in rotationally grazed pastures. Crop Sci. 58:2657–2664.
Veltman, K., C.A. Rotz, L. Chase, J. Cooper, P. Ingraham, R.C. Izaurralde, C.D. Jones, R. Gaillard, R.A. Larson, M. Ruark, W. Salas, G. Thoma, and O. Jolliet. 2018. A quantitative assessment of beneficial management practices to reduce carbon and reactive nitrogen footprints and phosphorus losses on dairy farms in the US Great Lakes region. Agric. Systems 166:10–25.
Ruark, M.D., R.P. Soratto, and C.J. Rosen. 2018. Merits and limitations of enhanced efficiency fertilizers. p. 289–314. In R. Lal and B.A. Stewart (ed.), Advances in soil science: Soil nitrogen uses and environmental impacts. CRC Press, Boca Raton, FL.
Chawner, M.M., M.D. Ruark, M. Ballweg, R. Proost, F.J. Arriaga, and J. Stute. 2018. Does cover crop radish supply nitrogen to corn? Agron. J. 110:1513–1522.
Gaillard, R.K., C.D. Jones, P. Ingraham, S. Collier, R.C. Izaurralde, W. Jokela, W. Osterholz, W. Salas, P. Vadas, and M.D. Ruark. 2018 Underestimation of N2O emissions in a comparison of the DayCent, DNDC, and EPIC models. Ecol. Appl. 28:694–708.
Radatz, A.M., C.L. Heron., E.T. Cooley, K. Genskow, and M.D. Ruark. 2018. Improving water quality knowledge through a focus on partnership: A University of Wisconsin Discovery Farms case study. J. Soil Water Conserv. 73:16–21A.
West, J.R., M.D. Ruark, A.J. Bussan, J.B. Colquhoun, and E.M. Silva. 2016. Nitrogen and weed management for organic sweet corn production on loamy sand. Agron. J. 108:758-769.
Collier, S.M., A.P. Dean, L.G. Oates, M.D. Ruark, and R.D. Jackson. 2016. Does plant biomass manipulation in static chambers affect nitrous oxide emissions from soils? J. Environ. Qual. 45:751-756.
Cates, A.M., M.D. Ruark, J.L. Hedtcke, and J.L. Posner. 2016. Long-term tillage, rotation and perennialization effects on particulate and aggregate soil organic matter. Soil and Tillage Research, 155:371-380. (http://www.sciencedirect.com/science/article/pii/S0167198715300258)
Bero, N.J., M.D. Ruark, and B. Lowery. 2016. Bromide and chloride tracer application to determine sufficiency of plot size and well depth placement to capture preferential flow and solute leaching. Geoderma 262:94-100. (http://www.sciencedirect.com/science/article/pii/S0016706115300306)
Wang, Y., M.D. Ruark, A.J. Gevens, D.T. Caine, A.L. Raster, N.J. Goeser, and A.J. Bussan. 2015. Processing snap bean variety responses to applied nitrogen and irrigation in the North Central United States. Agronomy Journal 107:1401-1410.
Minks, K.R., M.D. Ruark, B. Lowery, F.W. Madison, D. Frame, T.D. Stuntebeck, M.J. Komiskey, and G.J. Kraft. 2015. At-grade stabilization structure impact on surface water quality of an agricultural watershed. Journal of Environmental Management 153:50-59.
Madison, A.M., M.D. Ruark, T.D. Stuntebeck, M.J. Komiskey, L.W. Good, N. Drummy, and E.T. Cooley. 2014. Characterizing phosphorus dynamics in the tile-drained agricultural fields of eastern Wisconsin. Journal of Hydrology 519:892-901.
Ruark, M.D., K.A. Kelling, and L.W. Good. 2014. Environmental concerns of phosphorus management in potato production. American Journal of Potato Research 91:132-144.