Soil type test

A place to discuss soil fertility and soil amendments
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Topic Author
CLT49er
Posts: 71
Joined: Thu Jun 18, 2020 11:19 pm
Location: Charlotte NC
Grass Type: Bermuda Tiftuf
Lawn Size: 5000
Mower: Toro rotary push

Soil type test

Post by CLT49er »

Need some help analyzing this. I did that jar test. Filled half a jar with soil and half water. Shook it vigorously for several minutes. It was super cloudy in first 2 minutes and think this first layer settled then (sand?). An hour later the second layer settled (silt?) and water was only a little cloudy. This pic is 9 hours later. Totally settled. Clear water.

I am in Charlotte. Always thought my “red clay” was certainly clay. Seems like the jar settled too quickly for the soil to be clay. I have never felt sand in my soil. If it matters, my soil test said my CEC was a 5. What soil type do I have here?


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Last edited by CLT49er on Tue Dec 08, 2020 1:29 pm, edited 1 time in total.

Topic Author
CLT49er
Posts: 71
Joined: Thu Jun 18, 2020 11:19 pm
Location: Charlotte NC
Grass Type: Bermuda Tiftuf
Lawn Size: 5000
Mower: Toro rotary push

Re: Soil type test

Post by CLT49er »

Bump. Anyone have an idea what I have here? Thx!

Ridgerunner
Posts: 1621
Joined: Tue May 16, 2017 4:35 pm
Location: E. Ohio
Grass Type: KBG
Lawn Size: 6500
Mower: Steiner 420, Honda

Re: Soil type test

Post by Ridgerunner »

I'm not a fan and see little value in the jar test. How many people can discern sizes as small as .05 mm let alone .002 and what difference is it really going to make in your maintenance decisions?
https://archive.lib.msu.edu/tic/stnew/a ... 91sep4.pdf

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