“What chemicals are in your fertilizer?” Customers want to know what’s being applied to their lawns, so we are frequently asked this question. This article from The Landscape Contractor magazine gives a good explanation of what nutrients make up a typical fertilizer blend, and how they work. Emerald employees attended this presentation by Dr. Chuck Darrah “What’s in My Fertilizer Bag and What’s it Doing for Me?” at ILCA’s 2018 Turf Education Day.