The Gebbora blog

Notes from the Gebbora team on greenhouse design, feasibility, and daily operations, written for engineers, consultants, agronomists, investors, and farm owners.

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VPD, DLI, and PAR: The Three Numbers That Define Greenhouse Performance

VPD, PAR, and DLI explained for glass houses, vertical farms, and open fields -- with the units, ranges, and citations the cannabis-tool literature skips.

May 20, 2026 8 min read

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