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Amazon.com: Apogee Instruments DLI-400 PAR, Daily Light Integral, and Photoperiod Meter - PAR 400-700 nm (Sunlight Only) Light Measurement Tool for Plants & Agriculture : Patio, Lawn & Garden
Viridescent - the Asian Turfgrass Center blog: Turfgrass and shade: daily light integral (DLI) in Sydney
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The Impact of DLI, Light Quality and Photoperiod on Bedding Plant Flowering Response - Greenhouse Product News
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