If pH is that high, and alkalinity is low, your high pH does not come from calcium.
As for when you'll measure change...It depends on the agricultural lime used....check labels to see what has the highest CCE and how many pound equals one ton of ag lime (these are on the package by law). Pulverized and pelleted lime will be the most finely ground and "fast acting"....if close to a powder, you will see results in days....
I do not think the ag lime will lower your pH.
Last edited by Rainman; 05/23/18 05:43 AM.
