This is usually where I show a map with all my flights, mention that they took me some hundred thousands of kilometers, and then share some of my favorite turf photos from all the places I went.
At the end of every year, I like to look at my flight map and at some of my favorite turf photos.
In 2019 I was on 56 flights over 161,473 km (100,335 miles).
The MLSN guideline for phosphorus (P) is 21 ppm. I usually recommend enough P fertilizer to keep soil P, as measured by the Mehlich 3 extractant, from dropping below 21 ppm.
As I say at the end of every year, it has been another extraordinary year for studying grass around the world. See these links for some of my favorite photos (and flight maps) from 2015 and 2016.