Posted 9/13/2010 23:54 (#1358783 - in reply to #1357011) Subject: Re: Anyone use gypson for high ph?
central crop district in IL
Without seeing the complete soil test, I would guess that an excess of Ca is causing the pH to be high, threfore in this situation adding more Ca will not help. Sulfur is what I use in these situations in the form of AMS. If you use enough you can make a difference.