MacKenzie's fundamental principle of greenkeeping

I taught two seminars at the 2017 Philippine Golf Course Management conference.

One was about MLSN after 5 years. I explained what soil test interpretation is, why the MLSN guidelines were developed, and explained how they work.

The other was about irrigation water requirement. The slides are here, and I made this Shiny app with data from 2013 through 2016 for Manila, Cebu, and Baguio.