The MLSN guidelines are a modern method for interpreting turfgrass soil tests and making fertilizer recommendations. These guidelines were introduced in 2012 by PACE Turf (Larry Stowell and Wendy Gelernter) and ATC (Micah Woods). In this webinar, Micah will explain how the MLSN guidelines were developed from a large dataset of good-performing and professionally-managed turf. He will show the logic behind the MLSN method, with time-series examples from turfgrass sites. These examples will demonstrate how the MLSN guidelines are applied, and why they are so successful in making recommendations that produce high quality turfgrass surfaces.