Precision horticultural climate engineering parameters, solar Daily Light Integral (DLI) curves, seasonal thermal screen deployment strategy, and heating/cooling load calculations for Toyohashi, Aichi Prefecture, Japan (Humid Subtropical Pacific (Cfa)).
In Toyohashi, Aichi Prefecture, Japan, natural solar Daily Light Integral transitions from 14-19 mol/m²/day during winter solstice to 40-48 mol/m²/day at summer peak. For commercial crops like Tomatoes, Sweet Pepper, Perilla (Shiso), Chrysanthemum, target canopy DLI requires dynamic screen management to avoid photoinhibition during midday radiation spikes exceeding 850 W/m².
Screen Specification: Aluminum Vapor-Deposited Energy Screen (>=50% Saving)
Primary Cooling Strategy: Pad-and-Fan / High-Pressure Misting
Maintaining positive day-night temperature differential (DIF) and nighttime dehumidification minimizes condensation on cold structural glass surfaces, suppressing Botrytis and powdery mildew spore viability.
Major protected cropping varieties grown at scale in this regional cluster: Tomatoes, Sweet Pepper, Perilla (Shiso), Chrysanthemum.