fertilizer

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.

Here are data from 903 measurements I’ve made from 2011 to early 2021 excluding all tournament measurements. Table 1: Number of measurements and median green speed in feet, by species. Data from 867 stimpmeter readings by Micah Woods excluding tournament measurements.

Golf course putting greens are covered with many types of grasses. I’ve written about my skepticism that adding Si will increase green speed in 3 posts on the blog (post 1, post 2, post 3), and I’ve done so in reference to Zoysia matrella greens which are known for the high silica content of the leaves.

A correspondent wrote to ask about the ever popular topic of Si and green speed: Pretty sure I already know the answer to this, but I had a conversation with our rep from […] fertilizer company about my frustration in not being able to increase our green speed […].

Beth Guertal wrote to me a couple weeks ago: “I liked your Si blog post of recent date. It made me go back and find some data I collected once upon a while.

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?

“Do the MLSN guidelines use 17 essential nutrients? I’ve found a couple good articles,” my friend wrote, “but I couldn’t really find a number on the MLSN website.” “That’s an interesting question,” I replied, “and I may answer it on my blog.

I saw a video with the question “what is your favorite fertility practice?” That segment starts at the 2:00 mark. Then on Twitter I saw some comments about how funny the answers to that question were.

A correspondent wrote: I’m hoping to get your thoughts on something I came across today. I was discussing greens fertilising whilst at a friend’s course this morning. He went on to get his new toy, the […] He’s started to use the salinity level reading as an indicator to fertilise.