One thing I'd like everyone to understand about MLSN
The ATC Doublecut with Micah Woods - Podcast tekijän mukaan Asian Turfgrass Center

Grass is alive (hopefully), so it uses nutrients. That means the nutrients in the soil go down over time. When using MLSN the way I do it, you'll make an estimate of how much the soil nutrients will go down, and from that you can get a site-specific fertilizer recommendation.