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sulfur vs ammonium sulfate for acidifying

Was rereading the link below and see that ammonium sulfate, AS, is even more acidifying than I realized. It takes 2.66 lbs of AS to equal the effect of 1 lb sulfur. But the sulfur takes months to become effective. AS is effective soon after application. The down side of AS is it can burn the roots whereas sulfur doesn't. Downside of sulfur is it's easy to over acidify and difficult to tell when it's taken effect.

Between AS and our high bicarbonate well water I have the means to quickly adjust blueberry media pH. Now if I just had a pH meter that I had confidence in.

Here is a link that might be useful: neutralizing excess bicarbonate in irrigation water

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