Interpreting Soil Test Lab Results & Plan of Action

emcd124(5)October 4, 2012

I had my soil tested and per the lab most things look decent. All the micronutrients are normal. Here are the rest of the results:

Soil pH 7.4

Phosphorus (12ppm) Medium

Potassium (19 ppm) Low

Calcium (1191ppm) high/very high

Magnesium (206ppm) very high

Cation Exchange: 7.7 Meq/100g

Percent Base Saturation:

K=0.7 Mg=22.0 Ca=77.5

Extractable Aluminum: 5ppm

Soluble Salts: 0.06 dS/M

_____________

The lab recommends 6lb potassium/1000 sq ft along with 1 lb of nitrogen.

Do I need to be worried that my calcium and magnesium is TOO high? Theres no information on how to interpret those "very high" ratings. I've tried googling but just came across a bunch of stuff about whether or not there is an "ideal" Ca:Mg ratio. Should I be looking to bring down the pH to be a bit more acid? scatter coffee? something else?

Thank you for reporting this comment. Undo
Kimmsr(4a/5b-MI)

Your soil pH (7.4) indictes that your Ca and Mg are in balance even though they are "high to very high". Most all plants find a soil pH between 6.2 and 6.8 to be optimal because that is the range most all soil nutrients are most readily available, however, most of these plants will do fine at somewhat higher or lower soil pH levels.
So what is the level of organic matter in that soil?

    Bookmark   October 5, 2012 at 6:49AM
Sign Up to comment
More Discussions
Where do you buy your Tall Fescue seed?
I'm in Sacramento and looking to overseed our tall...
oberci
Best Organic Weed Control Ideas?
Hello, I am doing a project in which the objective...
Tigger033
So how out of touch are we????
Years ago, during one of those PBS marathon fundraisers,...
bossyvossy
DC Please Post Your Organic Lawn FAQs
I am considering going to organic fertilizers, DC could...
claga
overseeding help !
Hi All, I have a 5000 sft lawn with tall fescue, in...
gmanar
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™