Measured light transmissivity in three greenhouses

N. C. Wagner, K. A. Janni, C. M. Thill, J. E. Erwin, T. Blom

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


The amount of light transmitted through a greenhouse is a critical factor for production of greenhouse grown crops. Factors that affect irradiation transmissivity to the plants are latitude, greenhouse orientation, glazing material, roof slope, and obstructions within the greenhouse. Irradiation data at plant level within three greenhouses at different locations was measured and compared to corresponding global horizontal irradiation levels. Overall transmission efficiencies varied; 52% for a wide spanned twin walled greenhouse, 39% for glass Venlo design greenhouse, and 35% for a double-poly Venlo greenhouse.

Original languageEnglish (US)
JournalPaper - American Society of Agricultural Engineers
StatePublished - Dec 1 1997
EventProceedings of the 1997 ASAE Annual International Meeting. Part 1 (of 3) - Minneapolis, MN, USA
Duration: Aug 10 1997Aug 14 1997

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