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Lime Question
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junk fun
Posted 11/26/2021 10:23 (#9342640 - in reply to #9342442)
Subject: RE: Lime Question


Wisconsin
Streicher - 11/26/2021 08:49

Most of our land is heavy clay... ...approximately how much sulfur it would take to even drop the Ph .1?


Like I said before, the pH scale is logarithmic, so it takes a different amount of "neutralizer" to move each place on the scale. You can't do anything based on "2 pH points".

The pH is the ratio of hydrogen to hydroxide ions, the other side of the equation is the concentration in the soil, roughly the CEC, so a heavy soil is going to need more neutralizing than a pure sand soil.

This link would indicate in the order of a ton of sulfur per acre:

https://vric.ucdavis.edu/pdf/soil/ChangingpHinSoil.pdf

But the lime and sulfur recommendations also contradict everything I said about the scale being logarithmicaly stronger the further away from neutral. Or maybe it's just that the neutralizing is slower at neutral because of less strong reactions? or making conservative recommendations to avoid overshooting the goal?
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