Carrie Laboski


Carrie Laboski – Professor

Soil fertility/nutrient management, manure nutrient availability, soil testing correlation and calibration, nutrient (N, P, and K) cycling and movement, and enhancing nutrient use efficiency.

UW-Madison, Department of Soil Science
1525 Observatory Drive
Madison, WI 53706-1299, USA
Office: 241 King Hall

Phone: 608.263.2795
Fax: 608.265.2595

Web site:

Program Affiliations

  • Department of Soil Science


  • BS Soil Science, 1993, The Pennsylvania State University
  • MS Soil Science, 1995, University of Minnesota
  • PhD Soil Science, 2001, University of Minnesota

Awards and Honors

  • 2013 CALS Agricultural Research Stations Researcher Award
  • 2000 J. Fielding Reed Potash and Phosphate Institute Fellowship
  • 1999 Harry J. Larsen/Hydro Memorial Scholarship American Society of Agronomy

Extension and Research Overview

Research and extension mission statement: Nutrient management & Sustaining agricultural production and environmental quality. My specific research includes projects, which elucidate the biogeochemistry, transport, and subsequent best management practices for phosphorus, nitrogen, and potassium fertilizers and animal manures. Extension activities include the development and delivery of decision making tools to assist producers, ag professionals, and regulatory agencies in making decisions that help sustain economically and environmentally sound production of field, forage, and potato crops in Wisconsin and the Upper Midwest.

Current research includes:

  • Phosphorus availability as affected by manure and soil intereactions.
  • Nitrogen availability from raw and treated manures.
  • Soil K dynamics and fertilizer requirement for corn and soybean.
  • N response in corn as related to application timing and hybrid.
  • Evaluation of N source and timing for grass pastures.
  • Understanding plant availability of Mn in glyphosate resistant soybean systems.
  • Understanding P availability to potato.
  • Assessment of P leaching in irrigated sandy soils.

Selected Extension Publications

Peters, J.B. and C.A.M. Laboski. 2007. Garden Fertilization. UWEX Publ. A2304. 4 p.

Thelen, K., C. Laboski, J. Smeenk, A.M. Fortuna, J. Sanchez, K. Renner, P. Hart, C. Lee, M. Score, and L. Dyer. 2007. Field crop production systems. p. 40-59. In Deming et al. Building a sustainable future: Ecologically based farming systems. Michigan State Univ. Ext. Bull. E2983.

Laboski, C.A.M., J.B. Peters, and L.G. Bundy. 2006. Nutrient application guidelines for field, vegetable, and fruit crops in Wisconsin. UWEX Publ. A2809. 68 p.

Sawyer, J., E. Nafziger, G. Randall, L. Bundy, G. Rehm, B. Joern, C. Laboski, R. Hoeft, R. Mullen, R. Killorn, and S. Brouder. 2006. Concepts and rationale for regional nitrogen rate guidelines for corn. Iowa State University, University Extension Publ. PM 2015. 27 p.

Selected Research Publications

Bailey, R.R., T.R. Butts, J.G. Lauer, C.A.M. Laboski, C.J. Kucharik, and V.M. Davis.  2016.  Effect of weed management strategy and row width on nitrous oxide emissions in soybean.  Weed Sci. 63:962-971.

Pagliari, P.H., and C.A.M. Laboski.  2014.  Effects of manure inorganic and enzymatically hydrolysable phosphorus on soil test phosphorus.  Soil Sci. Soc. Am. J. 78:1301-1309.

Pagliari, P.H., and C.A.M. Laboski.  2013.  Dairy manure treatment effects on manure phosphorus fractionation and changes in soil test phosphorus.  Biol. Fert. Soils 49:987-999.

Pagliari, P.H., and C.A.M. Laboski.  2012.  Investigation of the inorganic and organic phosphorus forms in animal manure.  J. Environ. Qual. 41:901-910.

Johnson, H.J., J.B. Colquhoun, A.J. Bussan, and C.A.M. Laboski.  2012.  Estimating nitrogen mineralization of composted poultry manure, organic fertilizers, and green manure crops for organic sweet corn production on a sandy soil under laboratory conditions.  Horttechnology 22:37-43.

Pagliari, P.H., M.L. Flores-Mangual, B. Lowery, D.G. Weisenberger, and C.A.M. Laboski. 2011.  Manure-induced soil-water repellency.  Soil Sci. 176:576-581.

Yague, M.R., T.W. Andraski, and C.A.M. Laboski. 2011.  Manure composition and incorporation effects on phosphorus in runoff following corn biomass removal.  J. Environ. Qual. 40:1963-1971.

Sneller, E.G., and C.A.M Laboski.  2009.  Phosphorus source effects on corn utilization and changes in soil test.  Agron. J. 101:663-670.

Sweeney, A.E., K.A. Renner, C. Laboski, and A. Davis.  2008.  Effect of fertilizer nitrogen on weed emergence and growth.  Weed Sci. 56:714-721.

Laboski, C.A.M., J.E. Sawyer, D.T. Walters, L.G. Bundy, G.W. Randall, and T.W. Andraski.  2008.  Evaluation of the Illinois soil nitrogen test in the North Central Region of the United States.  Agron. J. 4:1070-1076.

Laboski, C.A.M., and K.A. Kelling.  2007.  Influence of fertilizer management and soil fertility on tuber specific gravity:  A review.  Am. J. Potato Res. 84:283-290.

Marshall, S.K., and C.A.M. Laboski.  2006.  Sorption of inorganic and total phosphorus from dairy and swine slurries to soil.  J. Environ. Qual. 5:1836-1843.

Harrigan, T.M., B.B. Bailey, A.N. Kravchenko, and C.A.M. Laboski.  2006.  Field performance of a low-disturbance, rolling-tine, dribble-bar manure applicator.  Appl. Engr. Agric. 22:33-38.

Laboski, C.A.M., and J.A. Lamb.  2004.  Impact of manure application on soil phosphorus sorption characteristics and subsequent water quality implications.  Soil Sci. 6:449-448.

Laboski, C.A.M., and J.A. Lamb.  2003.  Changes in soil test phosphorus concentration after application of manure or fertilizer.  Soil Sci. Soc. Am. J. 67:544-554.

Laboski, C.A.M., J.A. Lamb, R.H. Dowdy, J.M. Baker, and J. Wright.  2001.  Irrigation scheduling for a sandy soil using mobile frequency domain reflectometry with a checkbook method.  J. Soil Water Conserv. 56:97-100.

Laboski, C.A.M., R.H. Dowdy, R.R. Allmaras, and J.A. Lamb.  1998.  Soil strength and water content influenes on corn root distribution in a sandy soil.  Plant Soil 203:239-247.