Keith D JohnsonKeith D Johnson

Professor of Agronomy

Department: Agronomy
Phone: 765.494.4800
Fax: 765.496.2926
Office: Lilly 3-450 C
Curriculum Vitae

Area of Expertise: Forages
Websites: Forage Finder | Purdue Forage Website


 Why I'm an Extension Forage Specialist


Research Areas

  • Efficient use of resources for the production of livestock products without adverse effects to the environment
  • Enhancement of ruminant livestock production through evaluation of forages for late autumn, early winter and early spring grazing
  • Integrating livestock, forage, and fine hardwood production: an agroforestry alternative for sustaining farm productivity
  • Economic and performance analysis of alternative grazing and pasture renovation systems


Guest lecture forage-related topics in approximately three classes a year

Professional Experience

Professor, Dept. of Agronomy, Purdue University,
Associate Professor, Dept. of Agronomy, Purdue University,
Assistant Professor, Dept. of Agronomy, Purdue University,


B.S., University of Nebraska-Lincoln, 1976
M.S., Purdue University, 1979
Ph.D., Purdue University, 1981

Date joined staff: May 1981​