David Hare-Scott said:


Paul M. Cook wrote:

Hmmm ... how much dolomite should I add to a 22 inch pot with 2 cubic
feet of soil? Or does it matter? I mean the plant will take it up
as needed. Can you overdose?

Paul


You can overdose because dolomite will raise the pH, so it would be good to
know the pH before you start. For tomatoes you are looking for pH about 6
to 6.5 IIRC. I would try about half a cup. It isn't very soluble so it
will take a while to work.

Gypsum will add calcium without shifting the pH.

--
Pat in Plymouth MI

"Vegetables are like bombs packed tight with all kinds of important
nutrients..." --Largo Potter, Valkyria Chronicles

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