K. Neil Harker

K. Neil Harker publication distribution in Plant Science and Agronomy in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Plant Science and Agronomy in 2026. The highlighted bar marks where K. Neil Harker sits on this spectrum.

K. Neil Harker D-index placement in Plant Science and Agronomy in 2026

The chart shows the D-index (discipline H-index) distribution of Plant Science and Agronomy scientists ranked by Research.com in 2026. The highlighted bar marks where K. Neil Harker sits on this spectrum.

Best Publications

• Recent Weed Control, Weed Management, and Integrated Weed Management

  K. Neil Harker;John T. O'Donovan

  391
  Citations

• Crop yield and nitrogen concentration with controlled release urea and split applications of nitrogen as compared to non-coated urea applied at seeding

  C.A. Grant;R. Wu;F. Selles;K.N. Harker

  276
  Citations

• A decade of herbicide-resistant crops in Canada

  H. J. Beckie;K. N. Harker;L. M. Hall;S. I. Warwick

  254
  Citations

• Reduced herbicide doses in field crops: A review

  Robert E. Blackshaw;John T. O'donovan;K. Neil Harker;George W. Clayton

  191
  Citations

• Seeding rate, herbicide timing and competitive hybrids contribute to integrated weed management in canola (Brassica napus)

  K. N. Harker;G. W. Clayton;R. E. Blackshaw;J. T. O’Donovan

  186
  Citations

• Our top 10 herbicide-resistant weed management practices.

  Hugh J Beckie;K Neil Harker

  160
  Citations

• Decomposition of crop residues under conventional and zero tillage

  N. Z. Lupwayi;G. W. Clayton;J. T. O’Donovan;K. N. Harker

  157
  Citations

• Ongoing Development of Integrated Weed Management Systems on the Canadian Prairies

  Robert E. Blackshaw;K. Neil Harker;John T. O'Donovan;Hugh J. Beckie

  140
  Citations

• Crop Losses Due to Weeds in Canada

  Unknown

  138
  Citations

• Forage Potential of Intercropping Barley with Faba Bean, Lupin, or Field Pea

  Sheri M. Strydhorst;Jane R. King;Ken J. Lopetinsky;K. Neil Harker

  137
  Citations

• Legumes can reduce economic optimum nitrogen rates and increase yields in a wheat–canola cropping sequence in western Canada

  Mervin St. Luce;Cynthia A. Grant;Bernie J. Zebarth;Noura Ziadi

  136
  Citations

• Wild oat (Avena fatua) interference in barley (Hordeum vulgare) is influenced by barley variety and seeding rate.

  John T. O'donovan;K. Neil Harker;George W. Clayton;Linda M. Hall

  135
  Citations

• Nitrogen release during decomposition of crop residues under conventional and zero tillage

  N Z Lupwayi;G W Clayton;J T O’Donovan;K N Harker

  120
  Citations

• Seeding Rate, Nitrogen Rate, and Cultivar Effects on Malting Barley Production

  J. T. O'Donovan;T. K. Turkington;M. J. Edney;G. W. Clayton

  120
  Citations

• Phosphorus release during decomposition of crop residues under conventional and zero tillage

  N.Z. Lupwayi;G.W. Clayton;J.T. O’Donovan;K.N. Harker

  117
  Citations

• Integrated approaches to managing weeds in spring-sown crops in western Canada

  J.T. O’Donovan;R.E. Blackshaw;K.N. Harker;G.W. Clayton

  116
  Citations

• Soil microbial biomass, functional diversity and enzyme activity in glyphosate-resistant wheat–canola rotations under low-disturbance direct seeding and conventional tillage

  N.Z. Lupwayi;K.G. Hanson;K.N. Harker;G.W. Clayton

  113
  Citations

• Barley seeding rate influences the effects of variable herbicide rates on wild oat

  John T. O'Donovan;K. Neil Harker;George W. Clayton;Jeff C. Newman

  108
  Citations

• Weed-Competitive Ability of Spring and Winter Cereals in the Northern Great Plains

  Brian L. Beres;K. Neil Harker;George W. Clayton;Eric Bremer

  106
  Citations

• Rotational Effects of Legumes and Non-Legumes on Hybrid Canola and Malting Barley

  John T. O'Donovan;Cynthia A. Grant;Robert E. Blackshaw;K. Neil Harker

  98
  Citations

• Canola Root-Associated Microbiomes in the Canadian Prairies.

  Chih Ying Lay;Terrence H. Bell;Terrence H. Bell;Chantal Hamel;K. Neil Harker

  98
  Citations

• Integrating Cropping Systems with Cultural Techniques Augments Wild Oat (Avena fatua) Management in Barley

  K. Neil Harker;John T. O'Donovan;R. Byron Irvine;T. Kelly Turkington

  95
  Citations

• Survey of yield losses due to weeds in central Alberta

  K. Neil Harker

  93
  Citations

• Timing Weed Removal in Field Pea (Pisum sativum)1

  K. Neil Harker;Robert E. Blackshaw;George W. Clayton

  75
  Citations

• Synergistic Mixtures of Sethoxydim and Fluazifop on Annual Grass Weeds

  K. Neil Harker;P. Ashley O'Sullivan

  74
  Citations

• Glyphosate Timing and Tillage System Effects on Glyphosate-Resistant Canola (Brassica napus)1

  George W. Clayton;K. Neil Harker;John T. O'donovan;Mirza N. Baig

  70
  Citations

• Integration of Agronomic Practices and Herbicides for Sustainable Weed Management in a Zero-Till Barley Field Pea Rotation1

  Robert E. Blackshaw;James R. Moyer;K. Neil Harker;George W. Clayton

  65
  Citations

• Broadleaf Herbicide Effects on Clethodim and Quizalofop-P Efficacy on Volunteer Wheat (Triticum aestivum)'

  Robert E. Blackshaw;K. Neil Harker;George W. Clayton;John T. O'donovan

  59
  Citations

• Using Degree-Day and Logistic Models to Predict Emergence Patterns and Seasonal Flights of the Cabbage Maggot and Seed Corn Maggot (Diptera: Anthomyiidae) in Canola

  Jim S. Broatch;Lloyd M. Dosdall;George W. Clayton;K. Neil Harker

  59
  Citations

• 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

  Cynthia A. Grant;John T. O’Donovan;Robert E. Blackshaw;K. Neil Harker

  57
  Citations

• Weed-Competitive Ability of Spring and Winter Cereals in the Northern

  Brian L. Beres;K. Neil Harker;George W. Clayton;Eric Bremer

  0
  Citations