Green: 2021 Soil Tests

Learn how improving your soil can lead to a better looking lawn
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Green
Posts: 6618
Joined: September 14th, 2012, 10:53 pm
Location: CT (Zone 6B)
Grass Type: KBG, TTTF, TTPR, and FF (various mixtures)
Lawn Size: 10000-20000
Level: Experienced

Green: 2021 Soil Tests

Post by Green » October 7th, 2021, 9:42 pm

Better late than never!

Link to tests: https://i.postimg.cc/Jn51Ktff/2021-Tests.jpg

Areas tested:

-Front (which includes the side area): ~5.75K, irrigated, mostly South facing. Northern mix. All is going well here. No complaints.

-Low-Input: 5.5K, lower maintenance. Northern mix, with Fine Fescue in many areas. Only irrigated when in immediate danger of dormancy…several times per year. Hardly ever do biofungicide apps on this area. It’s coming along, but the soil could still be improved. I’m surprised that the Calcium number is all of a sudden lower this year. Then again, it’s been a while since a test has indicated the need for Lime.

-LF (~1,000 square feet). This area is tricky. I’ve tested it before as well, but not since 2019. I’m currently doing a KBG reno on it (kinda late; currently in sprout and pout stage; thankful for the warm October). I’m also looking for any soil remediation items that could help improve drainage. This area is prone to ponding (and ice in the Winter). I don’t care that the TEC is low in this area, and I have no desire to add more OM to it…I actually want it as sandy as possible to help the drainage. Problem is, while the TEC is low, the soil is extremely fine…like silt/clay, and that does not help drainage. I’ve been digging some rudimentary drainage, and this is helping, but anything I can do beyond that in regards to soil amendments that might specifically help with drainage and percolation speed? I keep saying I’m going to do a jar test to ascertain the soil structure for certain, but I haven’t gotten around to it. But there is apparently a ton of silt, and it turns to mud easily. I will not be mulching any more leaves into this area; it just seems to make the drainage problem even worse (and creates a dirty mower and pants!). I just want to have decent drainage and decent grass here. Nothing spectacular. No one really sees this area.

Reference link to 2020 test thread (back was tested in 2020 instead of LF area): viewtopic.php?f=11&t=26143&hilit=green+soil+tests

Other comments:

K: Been applying this macro nutrient has been my main focus since last year’s low numbers. The disease tolerance was terrible last Fall and Summer performance a bit lacking; I think the low-ish K played a role in both issues.

Mg: I haven’t been great at keeping up with this one…I did a couple of small apps since last year’s test, with Epsom salt and/or Sul-Po-Mag.

Fe: I haven’t been going crazy with it. A little here and there.

Boron: what the...?! It’s supposedly back down everywhere again. Starting to wonder about sampling reliability (this one’s on me) and testing reliability (on the lab).

Thanks for the help, as usual!

User avatar
andy10917
Posts: 29587
Joined: February 23rd, 2009, 10:48 pm
Location: NY (Lower Hudson Valley)
Grass Type: Emblem KBG (Front); Blueberry KBG Monostand (Back)
Lawn Size: 1 acre-2 acre
Level: Advanced

Re: Green: 2021 Soil Tests

Post by andy10917 » October 7th, 2021, 10:55 pm

Make sure to post into the Soil Test Interpretation Queue.

Green
Posts: 6618
Joined: September 14th, 2012, 10:53 pm
Location: CT (Zone 6B)
Grass Type: KBG, TTTF, TTPR, and FF (various mixtures)
Lawn Size: 10000-20000
Level: Experienced

Re: Green: 2021 Soil Tests

Post by Green » October 8th, 2021, 1:31 am

Link is now posted in the queue.

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