Greenhouse Lighting: Are Your Tired Grow Lights LettingYour Crop Down?

摘要

Researchers and growers alike recognize a lighting truth: A 1% increase in light levels returns a 1% increase in yield. Of course, this only applies when the light level is below the crop's photosynthetic saturation point. The point at which light limits yield will vary with several factors, including the crop species, crop fertility, and temperature.Horticulturalists around the world make cost-effective decisions about lighting every day. In some places for some crops, crop quality during low-light times of the year is maintained by growing cooler and slowing the crop cycle. In other areas, supplemental lighting is added to keep consistent production and quality week after week. For indoor and warehouse cultivation, a stable environment is maintained year-round by sole-source lighting.