Posted 9/12/2010 20:33 (#1357100 - in reply to #1357011) Subject: Re: Anyone use gypson for high ph?
Eastern Washington
Depends on what is causeing the ph to be high. In my situation my irrigation water has hi bicarbonates and sodium that raise the ph. It takes a pretty good amount of gypsum to counter them. When the calcium knocks the sodium loose it leaves the sulfate free to acidify the soil. It works for me.
Anyone use gypson for high ph?
