LabCompass

William G. Johnson

Agricultural and Biological Sciences · Purdue University West Lafayette

OpenAlex ORCID
Established · publishing since 1966Rising activity
Weed Control and Herbicide ApplicationsPesticide and Herbicide Environmental StudiesLegume Nitrogen Fixing SymbiosisSoybean genetics and cultivationNematode management and characterization studies

Publications

367

Citations

5,758

Est. group size

~9

Recurring co-author estimate

Active years

61

Publishing since 1966

Research summary
AI-generated

William G. Johnson works on weed science, focusing on how to control problem weeds like waterhemp, Palmer amaranth, and giant ragweed in crops such as soybean and sweetpotato. His research covers herbicide use and resistance, non-chemical control methods like electrocution and cover crops, and newer tools like hyperspectral imaging to detect crop stress or herbicide injury. This work is aimed at helping farmers manage weeds more effectively and sustainably as herbicide resistance becomes more common.

Weed control and herbicide resistanceHerbicide-resistant crop management (soybean, sweetpotato, corn)Cover cropping and integrated weed managementRemote and hyperspectral sensing for crop and weed diagnosticsPrecision agriculture and site-specific herbicide application

Publication output dipped in the early 2020s but has rebounded to earlier levels, with the last two years (2024-2025) showing the highest activity of the decade.

Generated by claude-sonnet-5 from public bibliographic data · Jul 20, 2026

Publication cadence
Publications per year over the last 10 years — averaging 6.0/year recently
2017: 8 publications172018: 9 publications9182019: 6 publications192020: 4 publications202021: 3 publications212022: 5 publications222023: 5 publications232024: 9 publications9242025: 9 publications9252026: 2 publications26
Recent publications
Publishes in
  • Weed Technology×28
  • Weed Science×16
  • Pest Management Science×4
  • Crop Protection×2
  • Crop Forage & Turfgrass Management×2
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By research-topic overlap
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  • Marcelo Zimmer

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This profile was generated automatically from public scholarly data (OpenAlex). Group size and activity levels are estimates derived from co-authorship patterns.

Last updated Jul 20, 2026.

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