Daily light integral (DLI) is a very useful measurement of sunlight for anyone that grows plants for a living. New DLI maps describing the light levels delivered across the U.S. are now available, and during this webinar, Jim Faust will show you how to use them to improve your crop planning and production. Following Jim's presentation, Marc van Iersel will discuss plant physiological responses to light and how to use that information to develop cost-effective supplemental lighting strategies.