Hammbone81 Soil Test Results - Fall 2019

Learn how improving your soil can lead to a better looking lawn
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andy10917
Posts: 29739
Joined: February 23rd, 2009, 10:48 pm
Location: NY (Lower Hudson Valley)
Grass Type: Emblem KBG (Front); Blueberry KBG Monostand (Back)
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Re: Hammbone81 Soil Test Results - Fall 2019

Post by andy10917 » December 12th, 2019, 10:30 pm

There is no single formula that delivers a "correct answer". There are formulas that calculate numbers, and formulas that calculate ratios of one nutrient to others. I have couple dozen of them, and use a goal-seeking formula to try to find the "sweet spots" to achieve the best impact to the formulas. Also (and most importantly) they use the antagonism/synergism relationships from Mulder's Chart. Want to understand it more? Look it up - it only took me 25 years to really learn it...

John P
Posts: 27
Joined: July 7th, 2019, 6:50 pm
Location: Houston
Grass Type: St. Augustine
Lawn Size: 1000-3000
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Re: Hammbone81 Soil Test Results - Fall 2019

Post by John P » December 13th, 2019, 1:43 pm

Another question I was wondering about is the elements that should not be applied at the same time.
I think I saw that it is best not to add Magnesium at the same time as Potash (K)?
Are there any others like this?
Thanks

John P
Posts: 27
Joined: July 7th, 2019, 6:50 pm
Location: Houston
Grass Type: St. Augustine
Lawn Size: 1000-3000
Level: Some Experience

Re: Hammbone81 Soil Test Results - Fall 2019

Post by John P » December 13th, 2019, 1:56 pm

andy10917 wrote:
December 12th, 2019, 10:30 pm
There is no single formula that delivers a "correct answer". There are formulas that calculate numbers, and formulas that calculate ratios of one nutrient to others. I have couple dozen of them, and use a goal-seeking formula to try to find the "sweet spots" to achieve the best impact to the formulas. Also (and most importantly) they use the antagonism/synergism relationships from Mulder's Chart. Want to understand it more? Look it up - it only took me 25 years to really learn it...
Thanks

John P
Posts: 27
Joined: July 7th, 2019, 6:50 pm
Location: Houston
Grass Type: St. Augustine
Lawn Size: 1000-3000
Level: Some Experience

Re: Hammbone81 Soil Test Results - Fall 2019

Post by John P » December 13th, 2019, 4:42 pm

John P wrote:
December 13th, 2019, 1:43 pm
.. I think I saw that it is best not to add Magnesium at the same time as Potash (K)? ...
"Manganese," sorry

User avatar
andy10917
Posts: 29739
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: Hammbone81 Soil Test Results - Fall 2019

Post by andy10917 » December 14th, 2019, 9:32 am

Oh, Manganese -- one of the weirdest profiles in nutrients! At very low pH levels, Manganese can be so available that it is toxic. At high pH levels (like your's) it is not very available, but the calculation is highly affected by the Iron levels. If there is a high level of Manganese that is close to the level of Iron, the uptake by plants becomes confused, and Manganese will substitute for Iron, but not in a good way.

You have PLENTY of Manganese. Most of it is not available at your pH levels, just like Iron.

If your question was to just use Manganese as an illustration for your question, then YES, there are many antagonistic relationships in soil management. Some are weak and some are strong, and they are different at different pH levels (which are in turn an indirect measurement of cation levels). If it sounds like the answer is "it depends" very often, then you're beginning to understand soil nutrient management...


John P
Posts: 27
Joined: July 7th, 2019, 6:50 pm
Location: Houston
Grass Type: St. Augustine
Lawn Size: 1000-3000
Level: Some Experience

Re: Hammbone81 Soil Test Results - Fall 2019

Post by John P » December 14th, 2019, 12:33 pm

andy10917 wrote:
December 14th, 2019, 9:32 am
Oh, Manganese -- one of the weirdest profiles in nutrients! ..
Thanks again for all your time and patience. I've run out of questions for now, my Christmas gift to you.

And apologies to Hammbone81 for hijacking your thread.

Happy Holidays all.

TimmyG
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Joined: May 15th, 2012, 6:04 pm
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Re: Hammbone81 Soil Test Results - Fall 2019

Post by TimmyG » December 14th, 2019, 6:20 pm

John P wrote:
December 14th, 2019, 12:33 pm
I've run out of questions for now, my Christmas gift to you.
It's a Christmas miracle! ;)

John P
Posts: 27
Joined: July 7th, 2019, 6:50 pm
Location: Houston
Grass Type: St. Augustine
Lawn Size: 1000-3000
Level: Some Experience

Re: Hammbone81 Soil Test Results - Fall 2019

Post by John P » December 14th, 2019, 7:44 pm

TimmyG wrote:
December 14th, 2019, 6:20 pm
It's a Christmas miracle! ;)
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