Evapotranspiration rate measurement by energy-balance equation in a single-span greenhouse

T. Takakura, C. Kubota, S. Sase, M. Hayashi, M. Ishii, K. Takayama, H. Nishina, K. Kurata, G. A. Giacomelli

Research output: Contribution to conferencePaper

Abstract

An energy balance equation was used to estimate evapotranspiration in a greenhouse, and an instrument for this purpose was developed. It was found that the present method is simpler than that using the Penman-Monteith equation and the estimated values by this method were in good agreement with measured data. It is also reported that normal radiation sensor measurements on a horizontal surface are not adequate for measuring radiation received by a plant canopy in a greenhouse.

Original languageEnglish (US)
StatePublished - Nov 7 2007
Event2007 ASABE Annual International Meeting, Technical Papers - Minneapolis, MN, United States
Duration: Jun 17 2007Jun 20 2007

Other

Other2007 ASABE Annual International Meeting, Technical Papers
CountryUnited States
CityMinneapolis, MN
Period6/17/076/20/07

Keywords

  • Energy balance
  • Evapotranspiration
  • Greenhouse
  • Penman-monteith

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Engineering(all)

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  • Cite this

    Takakura, T., Kubota, C., Sase, S., Hayashi, M., Ishii, M., Takayama, K., Nishina, H., Kurata, K., & Giacomelli, G. A. (2007). Evapotranspiration rate measurement by energy-balance equation in a single-span greenhouse. Paper presented at 2007 ASABE Annual International Meeting, Technical Papers, Minneapolis, MN, United States.