Quote:
Originally Posted by TracyWV
I really don't mean to step on any toes, really I don't, but...
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It is true that soda water is
a carbonic acid, but not the agricultural variety. These are humic acids, a complex of carbonic acids.
It is also true that agricultural gypsum (particularly liquid) is usually CaO + a buffer. However, I have encountered folks who in an effort to save money obtain rock gypsum from the California desert and wow, the pH of their soil rises immediately.
So I agree with Tracy, but also encourage you to treat your soil as described below.