MLSN

Those are the results Jason Haines described in his post about the evolution of precision fertilizer application. He explains how he makes use of observations, measurements, and predictions to find site specific nutrient requirements.

This question came in the mail: As to the MLSN guidelines that you have been a big proponent of, how do they apply to growing in a new course. I have wondered if they are more geared toward once a turfgrass becomes established and you are in maintenance mode.

When Andrew McDaniel wrote about #MLSN greens, I thought it may be interesting to show a few details of what this is about: These #MLSN greens are about to take 34 mows/21 rolls in 2 weeks.

Allan Dewald posted a poll on Twitter, asking how many other superintendents on Twitter are using the MLSN guidelines. The results of the poll, with 93 votes, were 41% using MLSN, 38% using conventional guidelines, and 21% not soil testing.

It’s not pretty. In fact, the grass gets horrendous in a hurry when it runs out of potassium (K). Which is why, as a turfgrass manager, one wants to make sure the grass is always supplied with enough K.

After last week’s post about the soil test levels where P deficiency symptoms were seen, Paul Johnson wrote to remind me about another experiment: “This is always a topic of interest to me, beginning with the study I did in the early 2000s.

Do you remember the amazing story from Thomas Sedlmeier who wrote to me last November? He introduced himself, explained how he had started using MLSN and GP, informed me that the grass conditions were beautiful, and also shared some information about maintenance expenses.

When I see a photo like the P deficiency one shared by Ben Pease (see photo below), I am really curious to know the soil test levels of the element.

When my friend wrote to ask if I could “write a brief description of MLSN,” I thought I might send along the article on turfgrass fertilization from the Green Section Record by Meentemeyer and Whitlark.

This question came some months ago: “I’m just pondering something about MLSN levels for Bent vs Poa and so hopefully you can clear it up. Having seen a bit of research coming out about k levels affecting disease pressure differently for poa and Bent does that not mean there should be two different MLSN’s for the two species?