Blog
New posts
Top posts
Topic list
Podcasts
ATC Doublecut with Micah Woods
ATC Office Hours
Soil tests
MLSN
OM246
Soil tests and other lab services
Projects
Article library
ClipVol
Shiny Apps
Turf project gallery
Newsletters
Seminar handouts
PACE Turf
About
About
Contact
Light
Dark
Automatic
soil test
How do you collect and prepare soil samples?
I know how I do it. As I’ve been thinking about it, and as I’ve asked a few people, I realize there may be a lot of variation in how turfgrass managers are collecting and preparing samples.
Micah Woods
2022-02-01
2 min read
Soil organic matter and N mineralization
I’ve been making estimates of N mineralization from soil organic matter for the past few years using the method described by Gilmour and Mauromoustakos in Nitrogen mineralization from soil organic matter: a sequential model.
Micah Woods
2021-11-19
3 min read
Adding potassium fertilizer does not increase the soil's ability to store it
You’ve probably listened to one of my seminars in which I explained why conventional nutrient guidelines for turfgrass are broken. Jackie Guevara’s thesis on “Effects of Different Soil Testing Philosophies on Creeping Bentgrass and Annual Bluegrass Putting Greens” is an excellent demonstration of this.
Micah Woods
2021-10-23
3 min read
OM246 sampling instructions
I’ve written a lot about OM246 testing for total organic material by depth in the soil, and why I think this test is so useful. Something I hadn’t written, until this week, is my own set of sampling instructions.
Micah Woods
2021-10-14
1 min read
Simple solutions to a difficult problem
When Bernd Leinauer introduced me prior to this talk, he mentioned that I’m one of the most controversial turfgrass scientists today. And the reason for being controversial happens to be the very topic of this presentation1 that I’ve uploaded today to my YouTube channel.
Micah Woods
2021-08-26
2 min read
MLSN and turfgrass nutrient recommendations
GCM Magazine has another article about the SLAN and MLSN methods for soil test interpretation. The article summarizes Jackie Guevara’s research (with Kevin Frank at Michigan State University) into turfgrass response when P and K applications are made based on MLSN.
Micah Woods
2021-08-25
1 min read
Extending the beer analogy
I’ve explained how MLSN works by telling a story about beer. Specifically, about a natural and logical method to figure out how many beers to buy at the store prior to an upcoming party.
Micah Woods
2021-07-29
3 min read
Soil organic matter should be invigilated
A substantial amount of organic material accumulated at the surface of a Tifdwarf bermudagrass putting green at Rota in the Northern Mariana Islands. I don’t recall if I read this exact statement, or if it occurred to me when I read something else about invigilation.
Micah Woods
2021-06-19
1 min read
A turfgrass Shiny app collection
I’ve made a number of Shiny apps, and have collected them all on this new page. These are designed either to show a set of data, or more likely, to make some calculations with the inputs allowed to vary.
Micah Woods
2021-03-31
1 min read
Soil test showdown
A recent PACE Turf update mentioned this research project by Jackie Guevara and Kevin Frank: Effects of different soil testing interpretation philosophies on creeping bentgrass and annual bluegrass putting greens.
2020-12-21
1 min read
«
»
Cite
×