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Quirine M. Ketterings   -   Associate Professor

PhD from Ohio State University  
Graduate fields:   Animal Science, Soil and Crop Sciences, and Horticulture
Area(s) of interest:   nutrient management for field crops, soil fertility, extension education, on-farm research, agricultural environmental management


  • Whole Farm Nutrient Management — ANSC 4120

Professional Organizations: 

  • Associate Editor, Soil Science Society of America Journal, division S8
  • Associate Editor, Forage and Grazinglands
  • Epsilon Sigma Phi, Honor Society of Cooperative Extension
  • Soil and Water Conservation Society, Empire State Chapter
  • International Society of Soil Science
  • Soil Science Society of America, Agronomy Society of America
  • Sigma Xi, the Scientific Research Society
  • Honor Society of Phi Kappa Phi

Website(s): Cornell Nutrient Management Spear Program

Current Research:

I established and lead the Cornell Nutrient Management Spear Program (NMSP), the colleges applied research, teaching and extension program for field crop fertilizer and manure management, that aims to improve dairy industry awareness of crop nutrient needs, crop quality, management of organic wastes, environmentally sound nutrient management practices, and overall soil fertility management. In collaboration with Cornell Cooperative Extension field crops educators, private sector crop consultants and nutrient management planners, agricultural industry and regulatory agencies, we conduct extension and applied research that aims to improve our understanding of nutrient cycling and aid in agronomic and environmentally sound nutrient management of dairy and livestock farms. In 2012, we launched the New York On-Farm Research Partnership.

Our specific research focus is to improve understanding of nutrient release and risk for runoff, leaching and/or volatilization and denitrification losses from inorganic and organic amendments as affected by soil type, hydrology, time and rate of application, and the use of specific soil and fertilizer amendments.

Our extension focus is to improve grower and agricultural industry awareness of crop nutrient needs, crop quality, management of organic amendments, environmentally sound nutrient management practices, and overall soil fertility management in New York State, and provide methods and tools to integrate and apply accumulated knowledge about crop nutrient guidelines to optimize crop yield while minimizing risk to the environment.

Our instruction focus is to prepare Cornell undergraduates for careers in agriculture focusing on increasing farm income while protecting the environment (ANSC 4120: whole farm nutrient management) and instill upon Cornell graduate students with a major or minor in soil science the skills, attitude and enthusiasm needed to conduct sound science using interdisciplinary and integrated approaches to address environmental issues related to soil science and nutrient management.


Selected Recent Publications: : (see for all 70 peer reviewed article to date)

Ketterings, Q.M., G. Godwin, S. Gami, K. Dietzel, J. Lawrence, P. Barney, T. Kilcer, M. Stanyard, C. Albers, J.H. Cherney, D. Cherney, K.J. Czymmek (2012). Soil and tissue testing for sulfur management of alfalfa in New York State. Soil Science Society of America Journal 76(1): 298-306.

Ketterings, Q.M., C. Miyamoto, R.R. Mathur, K. Dietzel, and S. Gami (2011). A comparison of soil sulfur extraction methods. Soil Science Society of America Journal 75(4): 1578-1583.

Ketterings, Q.M., K.J. Czymmek, and S.N. Swink (2011). Evaluation methods for a combined research and extension program used to address starter phosphorus fertilizer use for corn in New York. Canadian Journal of Soil Science 91(3): 467-477.

Swink, S.N, Q.M. Ketterings, L.E. Chase, K.J. Czymmek, and M. van Amburgh (2011). Nitrogen balances for New York State: Implications for manure and fertilizer management. Journal of Soil and Water Conservation 66(1): 1-17.

Janzen, H.H., P. Fixen, A.J. Franzluebbers, J. Hattey, R.C. Izaurralde, Q. M. Ketterings, D.A. Lobb, W.H. Schlesinger (2011). Global prospects are rooted in Soil Science. Soil Science Society of America Journal 75(1): 1-8.

Maguire, R.O., P.J.A. Kleinman, C. Dell, D.B. Beegle, R.C. Brandt, J.M. Mcgrath, and Q.M. Ketterings (2011). Manure application technology in reduced tillage and forage systems; a review. Journal of Environmental Quality 40(2): 292-301.

Chunyu, S., and Q.M. Ketterings (2010). Impact of soil temperature and moisture on Mehlich-3 and Morgan soil test phosphorus. Soil Science. doi: 10.1097/SS.0b013e3181f850d4.

Grandt, S., Q.M. Ketterings, A.J. Lembo Jr., and F. Vermeylen (2010). In-field spatial variability of soil test phosphorus and implications for agronomic and environmental phosphorus management. Soil Science Society of America Journal 74:1800-1807.

Cherney, J.H., Q.M. Ketterings. M. Davis, and D.J.R. Cherney (2010). Split application of nitrogen vs. dairy manure on temperate perennial grasses. Forage and Grazinglands. DOI:10.1094/FG-2010-02XX-01-RS.

Cherney, J.H., Q.M. Ketterings. M. Davis, and D.J.R. Cherney (2010). Timing of semi-solid dairy manure applications does not affect yield and quality of orchardgrass. Agronomy Journal 102:537-543.