David B. McKenzie, Ph.D.

Image David B. McKenzie
Research Scientist

Research Scientist, agronomy, crop physiology

Current research and/or projects

  • Development of novel crop production systems suitable for rural diversification under cool summer climates of the boreal ecosystem.

Research and/or project statements

  • Development of accelerated half-high blueberry crop establishment techniques
  • Improving nutrient balances on dairy farms using model farmlets and simulation
  • Treatment of Agricultural Tile Drainage Water in a Pilot-Scale Woodchip Bioreactor System
  • Development of buckwheat production systems suitable for cool summer climates

Education and awards

Education

1984: Ph.D., Soil Science, Texas A&M University, College Station, Texas

1980: M.Sc., Soil Science, University of Manitoba, Winnipeg, Manitoba

1977: B.S.A., Agriculture, University of Manitoba, Winnipeg, Manitoba

 

Awards

1997: Agcellence Award, the highest Agriculture & Agri-Food Canada departmental award, for exceptional accomplishments

1996: Agcellence Award, the highest Agriculture & Agri-Food Canada departmental award, for exceptional accomplishments

Key publications

  1. Cordeiro, M.R.C., Rotz, A., Kroebel, R., Beauchemin, K.A., Hunt, D., Bittman, S., Koenig, K.M., McKenzie, D.B. (2019). Prospects of forage production in northern regions under climate and land-use changes: A case-study of a dairy farm in Newfoundland, Canada, 9(1), http://dx.doi.org/10.3390/agronomy9010031

    2019 - View publication details

  2. Kumar, J.L.G., McKenzie, D.B. and Jewell, L.E. 2018. Can Wood Chip Bioreactors Reduce Nitrates in Tile Drainage? 60th Annual Farm Field day, St. John’s Research and Development Centre, St. John’s, NL, Canada September 15, 2018. Presentation (Poster)

    2018 - View publication details

  3. Valdez, V., A. Ramasami, V. Kavanagh, D. Burton, L. Jewell, D. McKenzie, A. Unc. 2018. Nitrogen cycling genes in a long-term land-use converted boreal land in Newfoundland, Canada. https://meeting2018.cgu-ugc.ca/ Abstract p.433 of 542pp. 2018 Joint Meeting of the Canadian Geophysical Union (CGU), Canadian Soil Science Society (CSSS), Computational Infrastructure in Geodynamics (CIG), Eastern Section of the Seismological Society of America (ES-SSA) and the Canadian Society for Agricultural and Forest Meteorology (CSAFM). June 10-14, 2018 Niagara Falls, Canada. (oral presentation).

    2018 - View publication details

  4. DB McKenzie, PL Dixon, C. Noronha and KN Hobrecker. 2017. Buckwheat (Fagopyrum esculentum Moench.) seeding date and cultivar response to Newfoundland growing conditions. Annual Meeting, the Canadian Phytopathological Society, 2017/
    Réunion annuelle, la Société Canadienne de Phytopathologie, 2017, Canadian Journal of Plant
    Pathology, 39:4, 540-586, DOI: 10.1080/07060661.2017.1386378
    https://doi.org/10.1080/07060661.2017.1386378

    2017 - View publication details

  5. McKenzie, D.B., L.E. Jewell, and L.G. Jeyakumar. 2017. Wood chip bioreactors reduce water nitrates levels. Agriview 11 (3): 9-10. http://www.nlfa.ca/newsletter

    2017 - View publication details

  6. Jeyakumar, L., McKenzie, D.B., Molloy, W., Bittman, S., Hunt, D., Galagedara, L., Derdall, E. 2017. Simulating subsurface tile drainage water outflow using DRAINMOD in Atlantic Canada. Joint Annual Meeting of American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 22-25 Oct, Tampa, FL. Presentation abstract 201-13. https://scisoc.confex.com/crops/2017am/webprogram/Paper108588.html

    2017 - View publication details

  7. McKenzie, DB; Jeyakumar, JLG; Jewell, LE; Hobrecker, K; Murphy, P; Comeau, S; Barron, J; Doody, T; Eissa, R; Valdez, V; Fiadjoe, A (2017). Nitrate Removal in Field-Scale Wood Chip Bioreactors. The 59th Annual Farm Field day, St. John’s Research and Development Centre, 12 Aug, St. John’s, NL

    2017 - View publication details

  8. Jewell, LE; Jeyakumar, L; Wiseman, D; McKenzie, DB; Porter, E (2017). Wood Chip Wonders! The 59th Annual Farm Field day, St. John’s Research and Development Centre, 12 Aug St. John’s, NL

    2017 - View publication details

  9. Jeyakumar, L; McKenzie, DB; Jewell, LE; Porter, E. 2017. Denitrifying Bacterial Community in a Wood chip Bio filter Treating Water Outflow from Tile-Drained Agricultural Fields. The 59th Annual Farm Field day, St. John’s Research and Development Centre, 12 Aug, St. John’s, NL

    2017 - View publication details

  10. McKenzie, D.B., *Jeyakumar, L., Murphy, P., Bittman, S., Hobrecker, K., Derdall, E. 2017. Design of wood chip denitrification bioreactors treating nitrate-N from agricultural drainage. ASABE Annual International Meeting, 16-19 Jul, Spokane, WA. Presentation abstract 1700637.

    2017 - View publication details

Research facility

308 Brookfield Road, BLDG 25
St. John's, NL A1E 6J5
Canada

Affiliations

Adjunct Professor, School of Science and the Environment, Memorial University, Grenfell Campus, Corner Brook, NL

Language

English