![Daily Light Integral: Measuring Light for Plants](https://cdn11.bigcommerce.com/s-0oei9zu/images/stencil/1280x650/uploaded_images/dli.jpg?t=1511824616)
Daily Light Integral: Measuring Light for Plants
This graph illustrates the year-round variability of global horizontal irradiance at Apogee Instruments in Logan, Utah.
As the winter solstice fast approaches, so do the shortened days and lengthy nights.…