J. Heiner Lieth

J. Heiner Lieth

Position Title
Professor and Extension Specialist

  • Faculty
3057 Wickson Hall and 1000 Environmental Horticulture
UC Davis, One Shields Ave, Davis CA 95616


  • Ph.D., North Carolina State University; Biomathematics (minor: Ecology), 1982
  • M.S., North Carolina State University; Applied Mathematics, 1978
  • B.S., University of North Carolina; Mathematical Sciences, 1976

Research interests and expertise: 

Horticultural production of plants in protected cultivation (greenhouse, indoor, shade-house, screen-house, and nursery) with specialization in soilless production (substrate culture, liquid culture), irrigation and fertigation, with and without recirculation. Development of sustainable, environmentally sensitive plant production techniques and optimization of production variables related to commercial crop production. Development of decision support tools for growers based on crop and plant models

Current projects: 

  • Photovoltaic energy production in Agricultural plant production
  • Indoor plant production
  • Plant growth LED lighting technology

Current teaching: 

  • Greenhouse and Nursery Production Management; ENH 125 (winter quarter)
  • Horticultural Systems Analysis; HRT 251 (winter quarter)
  • Flower Power ñ the application of the art and science of the beauty and perfection of flowers; PLS 006 (spring quarter)

Prizes, Awards, Honors

  • Henry E./ Heiner Award from the Joseph H. Hill Memorial Foundation, an affiliate of the International Cut Flower Growers Association, 2000
  • CANCG Award, 2000


  • Crop modeling
  • Plant growth models
  • Decisions support tools
  • Floriculture
  • Horticulture
  • Controlled environment agriculture
  • Ecophysiology
  • Greenhouse production
  • Indoor agriculture
  • Hydroponics
  • Soilless culture