May, Bill, M.Sc.
Crop Management Agronomist
Contact Information:
PO Box 760
Indian Head, Saskatchewan S0G 2K0
Telephone: 306-695-5225
Fax: 306-695-3445
Email: william.may@agr.gc.ca
Areas of Expertise:
- crop management
Research publications
2018
- Khakbazan, M., Grant, C.A., Huang, J., Zhong, C., Smith, E.G., O’Donovan, J.T., Mohz, R.M., Blackshaw, R.E., Harker, K.N., Lafond, G.P., Johnson, E.N., May, W.E., Turkington, T.K., Gan, Y., Lupwayi, N.Z., St. Luce, M. (2018). Economic impact of residual Nitrogen and preceding crops on wheat and canola, 110(1), 339-348. http://dx.doi.org/10.2134/agronj2017.08.0489
- Lupwayi, N.Z., May, W.E., Kanashiro, D.A., Petri, R.M. (2018). Soil bacterial community responses to black medic cover crop and fertilizer N under no-till, 124 95-103. http://dx.doi.org/10.1016/j.apsoil.2017.11.003
- MacLean, D.E., Lobo, J.M., Coles, K., Harding, M.W., May, W.E., Peng, G., Turkington, T.K., Kutcher, H.R. (2018). Fungicide application at anthesis of wheat provides effective control of leaf spotting diseases in western Canada, 112 343-349. http://dx.doi.org/10.1016/j.cropro.2018.06.019
- May, W.E., Dawson, M.P., Lyons, C.L. (2018). Response of sunflowers (Helianthus annuus L.) to varying seeding rates and nitrogen fertilizer rates in a no-till cropping system in saskatchewan, 98(6), 1331-1341. http://dx.doi.org/10.1139/CJPS-2017-0313
2017
- Gregorich, E.G., Janzen, H., Ellert, B.H., Helgason, B.L., Qian, B., Zebarth, B.J., Angers, D.A., Beyaert, R.P., Drury, C.F., Duguid, S.D., May, W.E., McConkey, B.G., Dyck, M.F. (2017). Litter decay controlled by temperature, not soil properties, affecting future soil carbon, 23(4), 1725-1734. http://dx.doi.org/10.1111/gcb.13502
2016
- Grant, C.A., O'Donovan, J.T., Blackshaw, R.E., Harker, K.N., Johnson, E.N., Gan, Y., Lafond, G.P., May, W.E., Turkington, T.K., Lupwayi, N.Z., McLaren, D.L., Zebarth, B., Khakbazan, M., St. Luce, M., Ramnarine, R. (2016). Residual effects of preceding crops and nitrogen fertilizer on yield and crop and soil N dynamics of spring wheat and canola in varying environments on the Canadian prairies, 192 86-102. http://dx.doi.org/10.1016/j.fcr.2016.04.019
- Khakbazan, M., Grant, C.A., Huang, J., Berry, N.J., Smith, E.G., O’Donovan, J.T., Blackshaw, R.E., Harker, K.N., Lafond, G.P., Johnson, E.N., Gan, Y., May, W.E., Turkington, T.K., Lupwayi, N.Z. (2016). Preceding crops and nitrogen effects on crop energy use efficiency in canola and barley, 108(3), 1079-1088. http://dx.doi.org/10.2134/agronj2015.0269
- O’Donovan, J.T., Edney, M.J., Izydorczyk, M.S., Turkington, T.K., Juskiw, P.E., McKenzie, R.H., Grant, C.A., Harker, K.N., May, W.E., Johnson, E.N., Smith, E.G., Clayton, G.W. (2016). Effect of seeding date and rate on malting barley (Hordeum vulgare L.) quality, 97(1), 10-13. http://dx.doi.org/10.1139/cjps-2016-0137
- Smith, E.G., Turkington, T.K., O’Donovan, J.T., Edney, M.J., Juskiw, P.E., McKenzie, R.H., Harker, K.N., Clayton, G.W., Xi, K., May, W.E., Irvine, R.B., Brandt, S., Johnson, E.N., Perkovic, S. (2016). Influence of production systems on return and risk from malting barley production in western Canada, 96(3), 339-346. http://dx.doi.org/10.1139/cjps-2015-0129
- St. Luce, M., Grant, C.A., Ziadi, N., Zebarth, B.J., O'Donovan, J.T., Blackshaw, R.E., Harker, K.N., Johnson, E.N., Gan, Y., Lafond, G.P., May, W.E., Malhi, S.S., Turkington, T.K., Lupwayi, N.Z., McLaren, D.L. (2016). Preceding crops and nitrogen fertilization influence soil nitrogen cycling in no-till canola and wheat cropping systems, 191 20-32. http://dx.doi.org/10.1016/j.fcr.2016.02.014
2015
- Lupwayi, N.Z., Harker, K.N., O'Donovan, J.T., Turkington, T.K., Blackshaw, R.E., Hall, L.M., Willenborg, C.J., Gan, Y., Lafond, G.P., May, W.E., Grant, C.A. (2015). Relating soil microbial properties to yields of no-till canola on the Canadian prairies, 62 110-119. http://dx.doi.org/10.1016/j.eja.2014.10.004
- May, W.E. (2015). Niger Tolerance to Flucarbazone, 29(3), 529-535. http://dx.doi.org/10.1614/WT-D-14-00147.1
- O’Donovan, J.T., Anbessa, Y., Grant, C.A., Macleod, A.L., Edney, M.J., Izydorczyk, M.S., Turkington, T.K., Juskiw, P.E., Lafond, G.P., May, W.E., Harker, K.N., Johnson, E.N., Beres, B.L., McAllister, T.A., Smith, E.G., Chapman, W. (2015). Relative responses of new malting barley cultivars to increasing nitrogen rates in western Canada, 95(5), 831-839. http://dx.doi.org/10.4141/CJPS-2014-415
- St. Luce, M., Grant, C.A., Zebarth, B.J., Ziadi, N., O'Donovan, J.T., Blackshaw, R.E., Harker, K.N., Johnson, E.N., Gan, Y., Lafond, G.P., May, W.E., Khakbazan, M., Smith, E.G. (2015). Legumes can reduce economic optimum nitrogen rates and increase yields in a wheat-canola cropping sequence in western canada, 179 12-25. http://dx.doi.org/10.1016/j.fcr.2015.04.003
- Turkington, T.K., O’Donovan, J.T., Harker, K.N., Xi, K., Blackshaw, R.E., Johnson, E.N., Peng, G., Kutcher, H.R., May, W.E., Lafond, G.P., Mohr, R.M., Irvine, R.B., Stevenson, C. (2015). The impact of fungicide and herbicide timing on foliar disease severity, and barley productivity and quality, 95(3), 525-537. http://dx.doi.org/10.4141/CJPS-2014-364
2014
- Fernandez, M.R., May, W.E., Chalmers, S., Savard, M.E., Singh, A.K. (2014). Are early foliar fungicide applications on durum wheat grown in southeast Saskatchewan beneficial in increasing grain productivity?, 94(5), 891-903. http://dx.doi.org/10.4141/CJPS2013-325
- Khakbazan, M., Grant, C.A., Huang, J., Smith, E.G., O’donovan, J.T., Blackshaw, R.E., Harker, K.N., Lafond, G.P., Johnson, E.N., Gan, Y., May, W.E., Turkington, T.K., Lupwayi, N.Z. (2014). Economic effects of preceding crops and nitrogen application on canola and subsequent barley, 106(6), 2055-2066. http://dx.doi.org/10.2134/agronj14.0253
- Malhi, S.S., Johnson, E.N., Hall, L.M., May, W.E., Phelps, S., Nybo, B. (2014). Effect of nitrogen fertilizer application on seed yield, N uptake, and seed quality of Camelina sativa, 94(1), 35-47. http://dx.doi.org/10.4141/CJSS2012-086
- May, W.E., Ames, N., Irvine, R.B., Kutcher, H.R., Lafond, G.P., Shirtliffe, S.J. (2014). Are fungicide applications to control crown rust of oat beneficial?, 94(5), 911-922. http://dx.doi.org/10.4141/CJPS2013-333
- May, W.E., Fernandez, M.R., Selles, F., Lafond, G.P. (2014). Agronomic practices to reduce leaf spotting and Fusarium kernel infections in durum wheat on the Canadian prairies, 94(1), 141-152. http://dx.doi.org/10.4141/CJPS2012-304
- O’donovan, J.T., Grant, C.A., Blackshaw, R.E., Harker, K.N., Johnson, E.N., Gan, Y., Lafond, G.P., May, W.E., Turkington, T.K., Lupwayi, N.Z., Stevenson, F.C., McLaren, D.L., Khakbazan, M., Smith, E.G. (2014). Rotational effects of legumes and non-legumes on hybrid canola and malting barley, 106(6), 1921-1932. http://dx.doi.org/10.2134/agronj14.0236
- Yang, C., Gan, Y., Harker, K.N., Kutcher, H.R., Gulden, R., Irvine, B., May, W.E. (2014). Up to 32 % yield increase with optimized spatial patterns of canola plant establishment in western Canada, 34(4), 793-801. http://dx.doi.org/10.1007/s13593-014-0218-5
2013
- Harker, K.N., O'Donovan, J.T., Blackshaw, R.E., Hall, L.M., Willenborg, C.J., Kutcher, H.R., Gan, Y., Lafond, G.P., May, W.E., Grant, C.A., Barthet, V., Mcdonald, T., Wispinski, D., Hartman, M. (2013). Effect of agronomic inputs and crop rotation on biodiesel quality and fatty acid profiles of direct-seeded canola, 93(4), 577-588. http://dx.doi.org/10.4141/CJPS2012-277
- Irvine, R.B., Lafond, G.P., May, W., Kutcher, H.R., Clayton, G.W., Harker, K.N., Turkington, T.K., Beres, B.L. (2013). Stubble options for winter wheat in the Black soil zone of western Canada, 93(2), 261-270. http://dx.doi.org/10.4141/CJPS2012-198
- Lafond, G.P., May, W.E., Holzapfel, C.B. (2013). Row spacing and nitrogen fertilizer effect on no-till oat production, 105(1), 1-10. http://dx.doi.org/10.2134/agronj2012.0221
- May, W.E., Holzapfel, C.B., Lafond, G.P., Schoenau, J.J. (2013). Does the presence of the gene for glabrous hull in annual canarygrass affect the response to chloride fertilizer?, 93(1), 109-118. http://dx.doi.org/10.4141/CJPS2012-068
2012
- Edney, M.J., O'Donovan, J.T., Turkington, T.K., Clayton, G.W., McKenzie, R., Juskiw, P., Lafond, G.P., Brandt, S., Grant, C.A., Harker, K.N., Johnson, E., May, W. (2012). Effects of seeding rate, nitrogen rate and cultivar on barley malt quality, 92(13), 2672-2678. http://dx.doi.org/10.1002/jsfa.5687
- Gan, Y., Liang, C., May, W., Malhi, S.S., Niu, J., Wang, X. (2012). Carbon footprint of spring barley in relation to preceding oilseeds and N fertilization, 17(5), 635-645. http://dx.doi.org/10.1007/s11367-012-0383-1
- Harker, K.N., O'Donovan, J.T., Blackshaw, R.E., Johnson, E.N., Lafond, G.P., May, W.E. (2012). Seeding depth and seeding speed effects on no-till canola emergence, maturity, yield and seed quality, 92(4), 795-802. http://dx.doi.org/10.4141/CJPS2011-189
- Harker, K.N., O'Donovan, J.T., Turkington, T.K., Blackshaw, R.E., Lupwayi, N.Z., Smith, E.G., Klein-Gebbinck, H., Dosdall, L.M., Hall, L.M., Willenborg, C.J., Kutcher, H.R., Malhi, S.S., Vera, C.L., Gan, Y., Lafond, G.P., May, W.E., Grant, C.A., McLaren, D.L. (2012). High-yield no-till canola production on the Canadian prairies, 92(2), 221-233. http://dx.doi.org/10.4141/CJPS2011-125
- Lafond, G.P., Campbell, C.A., Lemke, R.L., May, W.E., and Holzapfel, C.B. (2012). "Indian Head Long Term Crop Rotations: Indian Head Saskatchewan.", Prairie Soils and Crops, 5, pp. 42-50.
- Lupwayi, N.Z., Lafond, G.P., May, W.E., Holzapfel, C.B., Lemke, R.L. (2012). Intensification of field pea production: Impact on soil microbiology, 104(4), 1189-1196. http://dx.doi.org/10.2134/agronj2012.0046
- May, W.E., Lafond, G.P., Gan, Y.T., Hucl, P., Holzapfel, C.B., Johnston, A.M., Stevenson, C. (2012). Yield variability in Phalaris canariensis L. due to seeding date, seeding rate and nitrogen fertilizer, 92(4), 651-669. http://dx.doi.org/10.4141/cjps2011-126
- O'Donovan, J.T., Turkington, T.K., Edney, M.J., Juskiw, P.E., McKenzie, R.H., Harker, K.N., Clayton, G.W., Lafond, G.P., Grant, C.A., Brandt, S., Johnson, E.N., May, W.E., Smith, E. (2012). Effect of seeding date and seeding rate on malting barley production in western Canada, 92(2), 321-330. http://dx.doi.org/10.4141/CJPS2011-130
- Smith, E.G., Clayton, G.W., O'Donovan, J.T., Turkington, T.K., Harker, K.N., Henderson, W.J., McKenzie, R.H., Juskiw, P.E., Lafond, G.P., May, W.E., Grant, C.A., Brandt, S., Johnson, E.N., Edney, M.J. (2012). Net return risk for malting barley production in Western Canada as influenced by production strategies, 104(5), 1374-1382. http://dx.doi.org/10.2134/agronj2011.0416
- Turkington, T.K., O'Donovan, J.T., Edney, M.J., Juskiw, P.E., McKenzie, R.H., Harker, K.N., Clayton, G.W., Xi, K., Lafond, G.P., Irvine, R.B., Brandt, S., Johnson, E.N., May, W.E., Smith, E. (2012). Effect of crop residue, nitrogen rate and fungicide application on malting barley productivity, quality, and foliar disease severity, 92(3), 577-588. http://dx.doi.org/10.4141/CJPS2011-216
2011
- Blackshaw, R.E., Johnson, E.N., Gan, Y., May, W.E., McAndrew, D.W., Barthet, V., McDonald, T., Wispinski, D. (2011). Alternative oilseed crops for biodiesel feedstock on the Canadian prairies, 91(5), 889-896. http://dx.doi.org/10.4141/cjps2011-002
- Campbell, C.A., Lafond, G.P., van den Bygaart, A.J., Zentner, R.P., Lemke, R., May, W.E., Holzapfel, C.B. (2011). Effect of crop rotation, fertilizer and tillage management on spring wheat grain yield and N and P content in a thin Black Chernozem: A long-term study, 91(3), 467-483. http://dx.doi.org/10.4141/cjps10032
- Lafond, G.P., May, W.E., Holzapfel, C.B., Lemke, R.L., Lupwayi, N.Z. (2011). Intensification of field pea production: Impact on agronomic performance, 103(2), 396-403. http://dx.doi.org/10.2134/agronj2010.0309
- Lafond, G.P., Walley, F., May, W.E., Holzapfel, C.B. (2011). Long term impact of no-till on soil properties and crop productivity on the Canadian prairies, 117 110-123. http://dx.doi.org/10.1016/j.still.2011.09.006
- Lamb, E.G., Shirtliffe, S.J., May, W.E. (2011). Structural equation modeling in the plant sciences: An example using yield components in oat, 91(4), 603-619. http://dx.doi.org/10.4141/cjps2010-035
- O'Donovan, J.T., Turkington, T.K., Edney, M.J., Clayton, G.W., McKenzie, R.H., Juskiw, P.E., Lafond, G.P., Grant, C.A., Brandt, S., Harker, K.N., Johnson, E.N., May, W.E. (2011). Seeding rate, nitrogen rate, and cultivar effects on malting barley production, 103(3), 709-716. http://dx.doi.org/10.2134/agronj2010.0490
- Turmel, M.S., Entz, M.H., Tenuta, M., May, W.E., Lafond, G.P. (2011). The influence of a long-term black medic (Medicago lupulina cv. George) cover crop on arbuscular mycorrhizal fungal colonization and nutrient uptake in flax (Linum usitatissimum) under zero-tillage management, 91(6), 1071-1076. http://dx.doi.org/10.4141/cjps10115
2010
- Fernandez, M.R., May, W.E., Lafond, G.P. (2010). Effect of fungicide seed treatments on root pathogens of cereal crops under field conditions, 90(6), 905-917. http://dx.doi.org/10.4141/CJPS09172
- Irvine, R.B., Lafond, G.P., May, W.E., Kutcher, H.R., Holzapfe, C.B. (2010). Alternative nitrogen management options for winter wheat on the eastern prairies of western canad, 90(4), 471-478. http://dx.doi.org/10.4141/CJPS09166
- Irvine, R.B., McConnell, J., Lafond, G.P., May, W.E., Hultgreen, G., Ulrich, A., Stonehouse, K., Chalmers, S., Stevenson, F.C. (2010). Impact of production practices on fiber yield of oilseed flax under Canadian prairie conditions, 90(1), 61-70. http://dx.doi.org/10.4141/CJPS08233
- Johnson, E.N., Gan, Y.T., May, W.E., Balasubramanian, P.M., Vera, C.L., Friesen, K., and Hermann, A. (2010). "Production of Selected Special Crops on the Canadian Great Plains.", in Malhi, S.S., Gan, Y., Schoenau, J.J., Lemke, R.L. and Liebig, M.A. (eds.) - Recent Trends in Soil Science and Agronomy Research in the Northern Great Plains of North America, Research Signpost, Trivandrum, India, Chapter 10.
- May, W.E., Brandt, S.A., Gan, Y., Kutcher, H.R., Holzapfel, C.B., Lafond, G.P. (2010). Adaptation of oilseed crops across Saskatchewan, 90(5), 667-677. http://dx.doi.org/10.4141/CJPS09179
- May, W.E., Fernandez, M.R., Lafond, G.P. (2010). Effect of fungicidal seed treatments on the emergence, development, and grain yield of Fusarium graminearum-infected wheat and barley seed under field conditions, 90(6), 893-904. http://dx.doi.org/10.4141/CJPS09173
- McLeod, J.G., May, W.E., Salmon, D.F., Sosulski, K., Thomas, J.B., Brown, P.D., Vera, C.L. (2010). Changes in ethanol production potential due to species, cultivar and location on the Canadian prairie, 90(2), 163-171. http://dx.doi.org/10.4141/CJPS09078
- Mooleki, S.P., Malhi, S.S., Lemke, R.L., Schoenau, J.J., Lafond, G., Brandt, S., Hultgreen, G.E., Wang, H., May, W.E. (2010). Effect of form, placement and rate of N fertilizer, and placement of P fertilizer on wheat in Saskatchewan, 90(3), 319-337. http://dx.doi.org/10.4141/CJPS09075
- Vera, C.L., Malhi, S.S., Phelps, S.M., May, W.E., Johnson, E.N. (2010). N, P, and S fertilization effects on industrial hemp in Saskatchewan, 90(2), 179-184. http://dx.doi.org/10.4141/CJPS09101
2009
- Fernandez, M.R., Turkington, T.K., May, W.E. (2009). Effectiveness of fungicide seed treatments for preventing seed-to-seedling transmission of Fusarium graminearum under controlled-environment conditions, 89(4), 811-821. http://dx.doi.org/10.4141/CJPS08132
- Holzapfel, B., Lafond, G.P., Brandt, S.A., Bullock, P.R., Irvine, R.B., Morrison, M.J., May, W.E., James, D.C. (2009). Estimating canola (Brassica napus L.) yield potential using an active optical sensor, 89(6), 1149-1160. http://dx.doi.org/10.4141/CJPS09056
- Holzapfel, C.B., Lafond, G.P., Brandt, S.A., Bullock, P.R., Irvine, R.B., James, D.C., Morrison, M.J., May, W.E. (2009). Optical sensors have potential for determining nitrogen fertilizer topdressing requirements of canola in Saskatchewan, 89(2), 411-425. http://dx.doi.org/10.4141/CJPS08127
- Lafond, G.P., Stumborg, M., Lemke, R., May, W.E., Holzapfel, C.B., Campbell, C.A. (2009). Quantifying straw removal through baling and measuring the long-term impact on soil quality and wheat production, 101(3), 529-537. http://dx.doi.org/10.2134/agronj2008.0118x
- Lemke, R.L., Mooleki, S.P., Malhi, S.S., Lafond, G., Brandt, S., Schoenau, J.J., Wang, H., Thavarajah, D., Hultgreen, G., May, W.E. (2009). Effect of fertilizer nitrogen management and phosphorus placement on canola production under varied conditions in Saskatchewan, 89(1), 29-48. http://dx.doi.org/10.4141/CJPS08025
- May, W.E., Johnson, E.N., Ulrich, D.J., Holzapfel, C.B., Lafond, G.P. (2009). Tolerance of foxtail millet to combinations of bromoxynil, clopyralid, fluroxypyr, and MCPA, 23(1), 94-98. http://dx.doi.org/10.1614/WT-08-132.1
- May, W.E., Shirtliffe, S.J., McAndrew, D.W., Holzapfel, C.B., Lafond, G.P. (2009). Management of wild oat (Avena fatua L.) in tame oat (Avena sativa L.) with early seeding dates and high seeding rates, 89(4), 763-773. http://dx.doi.org/10.4141/CJPS08150
Other science related publications
2018
- May, W.E. 2019. Crop Sequencing and N Management in Oats. American Oat Workers Conference, June 19-21, 2018, Seattle, WA
2017
- May, W.E. and Gan, Y. 2017. Impact of pulse and canola frequency in a crop rotation on weed biomass and dominant species. 2017 Canadian weed Science Society’s Annual Meeting. Nov 21-23, Saskatoon, SK.
2016
- M. Petruic, C. Willenborg, E. Johnson, W. May, R. Gulden, 2016. Evaluating crop tolerance to unregistered herbicides in flax (Linum usitatissimum). Soils and Crops 2016 Workshop University of Saskatchewan Saskatoon. http://www.usask.ca/soilsncrops/conference-proceedings/2016-proceedings/index.php
2015
- Aidoo, J.P., Hall, L.M., Strydhorst, S.M., and May, W.E. (2015). "Influence of plant growth regulator application and nitrogen fertilization on oat yield and standability.", Canadian Weed Science Society Conference, Edmonton, Alberta, Canada, November 25, 2015.
- Aidoo, J.P., Hall, L.M., Strydhorst, S.M., and May, W.E. (2015). "Influence of plant growth regulator application and nitrogen fertilization on oat yield and standability.", Soils and Crops Conference and Agronomy Workshop, Saskatoon, Saskatchewan, Canada, March 16, 2015.
- Cholango-Martinez, P., May, W.E., Hucl, P.J., and Kutcher, H.R. (2015). "Fungicide control of Leaf mottle on Canary seed.", Soils and Crops Conference and Agronomy Workshop, Saskatoon, Saskatchewan, Canada, March 16, 2015.
- Gan, Y.T., Harker, K.N., Kutcher, H.R., Gulden, R.H., Irvine, R.B., May, W.E., O'Donovan, J.T., and Yang, C. (2015). "Uniform plant stands enhance the synergy of pod formation and seed yield in canola.", 14th International Rapeseed Congress, Saskatoon, SK, Canada, July 5-9, 2015. (Poster)
- MacLean, D., May, W.E., Peng, G., Coles, K., Turkington, T.K., Harding, M.W., and Kutcher, H.R. (2015). "Evaluating Fungicide Timing for Leaf Spot Disease Control in Wheat.", Botany 2015, Shaw Convention Center, Edmonton, Alberta, Canada, July 25-29, 2015.
- MacLean, D., May, W.E., Peng, G., Coles, K., Turkington, T.K., Harding, M.W., and Kutcher, H.R. (2015). "Evaluating Fungicide Timing for Leaf Spot Disease Control in Wheat.", Soils and Crops Conference and Agronomy Workshop, Saskatoon, Saskatchewan, Canada, March 16, 2015.
- MacLean, D., May, W.E., Peng, G., Coles, K., Turkington, T.K., Harding, M.W., and Kutcher, H.R. (2015). "Fungicide application at anthesis provides effective leaf spot control in spring wheat.", Canadian Journal of Plant Pathology. (Abstract)
- May, W.E. (2015). "Control of volunteer canola in sunflower with sulfentrazone and imazamethabenz.", Canadian Weed Science Society Conference, Edmonton, Alberta, Canada, November 25, 2015.
- May, W.E. (2015). "Effect of black medic (medicago lupulina) and nitrogen fertilizer on crop yield and soil nitrogen and phosphorous.", Soils and Crops Conference and Agronomy Workshop, Saskatoon, Saskatchewan, Canada, March 16, 2015.
- May, W.E. and Lyons, C. (2015). "The effect of Nitrogen and Seeding Rate on Sunflowers in a No-till Environment.", Botany 2015, Shaw Convention Center, Edmonton, Alberta, Canada, July 25-29, 2015, Presentation.
- May, W.E., Wood, M.A., and Zhou, R. (2015). "The effect of Nitrogen and Seeding depth on Niger.", Botany 2015, Shaw Convention Center, Edmonton, Alberta, Canada, July 25-29, 2015.
- Mierau, A., Willenborg, C.J., Gulden, R.H., May, W.E., Weber, J., and Johnson, E.N. (2015). "Evaluating a two-pass herbicide system for managing glyphosate-resistant canola in glyphosate-resistant soybean crops.", Canadian Weed Science Society Conference, Edmonton, Alberta, Canada, November 25, 2015.
- O'Donovan, J.T., Grant, C.A., Blackshaw, R.E., Harker, K.N., Johnson, E.N., Gan, Y.T., May, W.E., Turkington, T.K., Lupwayi, N.Z., Khakbazan, M., and Smith, E.G. (2015). "Legumes in rotation affect hybrid canola and malting barley.", 14th International Rapeseed Congress, Saskatoon, SK, Canada, July 5-9, 2015, Keynote Theme D oral presentation.
- O'Donovan, J.T., Turkington, T.K., Harker, K.N., Oatway, L., Grant, C.A., Beres, B.L., Johnson, E.N., May, W.E., Izydorczyk, M.S., MacLeod, A., Anbessa, Y., and Vera, C.L. (2015). "Malting barley cultivar responses to increasing nitrogen rates in western Canada.", ASA-CSSA-SSSA International Annual Meeting: Synergy in Science. Partnering for Solutions, Minneapolis, MN, USA, November 15-18, 2015. (Poster)
- Turkington, T.K., O'Donovan, J.T., Harker, K.N., Xi, K., Blackshaw, R.E., Johnson, E.N., Peng, G., Kutcher, H.R., May, W.E., Lafond, G.P., Mohr, R.M., and Irvine, R.B. (2015). "The impact of fungicide and herbicide timing on foliar disease severity, and barley productivity and quality.", XVIII International Plant Protection Congress (IPPC), Free University Berlin, Henry Ford Building, Berlin, Germany, August 24-27, 2015, ID: P HERBI 7. (Poster)
- Turkington, T.K., Xi, K., O'Donovan, J.T., Harker, K.N., Peng, G., Martin, R.C., Beres, B.L., May, W.E., and Mohr, R.M. (2015). "The impact of seed treatment, foliar fungicide timing, and plant growth regulator on leaf-disease severity and productivity of barley.", XVIII International Plant Protection Congress (IPPC), Free University Berlin, Henry Ford Building, Berlin, Germany, August 24-27, 2015, ID: P IPM 42. (Poster)
- Turkington, T.K., Xi, K., Peng, G., Martin, R.A., Harker, K.N., O'Donovan, J.T., Beres, B.L., May, W.E., and Mohr, R.M. (2015). "The impact of seed treatment, foliar fungicide timing, and plant growth regulator on barley leaf disease severity and productivity.", Canadian Journal of Plant Pathology. (Abstract)
2014
- O'Donovan, J.T., Blackshaw, R.E., Grant, C.A., Harker, K.N., Johnson, E.N., Gan, Y.T., Lafond, G.P., May, W.E., and Turkington, T.K. (2014). "Legume crops grown in rotation enhance canola and barley productivity in western Canada.", 13th Congress of European Society of Agronomy, Debrecen, Hungary, August 25-29, 2014, pp. 357-358.
- O'Donovan, J.T., Edney, M.J., MacLeod, A., Turkington, T.K., Grant, C.A., Harker, K.N., Johnson, E.N., Lafond, G.P., May, W.E., Beres, B.L., Kabeta, Y., and Juskiw, P.E. (2014). "Response of new malting barley cultivars to increasing nitrogen rates in western Canada.", 13th Congress of European Society of Agronomy, Debrecen, Hungary, August 25-29, 2014, pp. 141-142. (Poster)
- O'Donovan, J.T., Grant, C.A., Blackshaw, R.E., Harker, K.N., Johnson, E.N., Gan, Y.T., May, W.E., Lafond, G.P., Turkington, T.K., Lupwayi, N.Z., Khakbazan, M., and Smith, E.G. (2014). "Rotational Effects of Legumes and Non-Legumes on Hybrid Canola, and Malting Barley.", American Society of Agronomy Annual Meeting 2014, Long Beach, CA, USA, November 3-5, 2014.
2013
- Bassendowski, K.A., Lafond, G.P., May, W.E., Holzapfel, C.B., and Gossen, B.D. (2013). "Frequent cropping to field pea increases the severity of root and foliar diseases.", Canadian Journal of Plant Pathology, 35, pp. 518. (Abstract)
- O'Donovan, J.T., Grant, C.A., Blackshaw, R.E., Harker, K.N., Turkington, T.K., Johnson, E.N., Lafond, G.P., May, W.E., Gan, Y.T., Edney, M., and Juskiw, P.E. (2013). "Effect of legume crops grown two years prior to barley on malting barley yield and quality.", ASA/CSSA/SSSA International annual meeting: Water, Food, Energy and Innovation for a Sustainable World, Tampa, Florida, USA, November 3-6, 2013.
- O'Donovan, J.T., Turkington, T.K., Edney, M., Juskiw, P.E., May, W.E., Grant, C.A., Smith, E.G., Harker, K.N., Johnson, E.N., Beres, B.L., Kadeta, Y., and Chapman, B. (2013). "Relative responses of malting barley varieties to increasing nitrogen rates.", 16th Australian Barley Technical Symposium, Melbourne, Australia, September 8-11, 2013, pp. 58.
- O'Donovan, J.T., Turkington, T.K., Edney, M., Smith, E.G., Harker, K.N., Beres, B.L., Clayton, G.W., Brandt, S.A., Johnson, E.N., Lafond, G.P., May, W.E., Grant, C.A., McKenzie, R., Juskiw, P.E., Kadeta, Y., Stonehouse, K., and Chapman, B. (2013). "Varietal and agronomic impacts on malting barley yield and quality.", FarmTech 2013, Westin Hotel, Edmonton, AB, Canada, January 29-31, 2013.
2011
- Fernandez, M.R., May, W.E., Chalmers, S., Savard, M.E., and Singh, A.K. (2011). "Effectiveness of fungicide applications at various growth stages on head/kernel diseases, and productivity of durum wheat in southern Saskatchewan.", 7th Canadian Workshop on Fusarium Head Blight (CWFHB) / Colloque canadien sur la fusariose, Delta Winnipeg Hotel, Winnipeg, MB, Canada, November 27-30, 2011, pp. 87.
- O'Donovan, J.T., Blackshaw, R.E., Grant, C.A., Harker, K.N., Lafond, G.P., Johnson, E.N., Gan, Y.T., May, W.E., Turkington, T.K., and Lupwayi, N.Z. (2011). "Legume Crops to Improve Soil Fertility for Enhanced Canola Production.", 2011 ASA-CSSA-SSSA International Annual Meeting: Fundamental for life: soil, crop and environmental sciences, San Antonio, TX, USA, October 16-19, 2011. (Poster)
2010
- Lafond, G.P., Brandt, S.A., Clayton, G.W., Irvine, R.B., and May, W.E. (2010). "Rainfed Farming Systems on the Canadian Prairies.", in Tow, P., Cooper, I., Partridge, I. and Birch, C. (eds.) - Rainfed Farming Systems, Springer, Chapter 19.
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