Does Gypsum have an effect on clays that are not Sodic?

Question

Will I need to have my clay soil tested to see if it is Sodic or is there still a benefit in adding Gypsum even if it not Sodic?

Answer 1

http://www.science.org.au/nova/035/quirk...

that's about sodic soils

this is about GA clay and gypsum

http://www.walterreeves.com/landscaping/...

my NC red clay totally ignores gypsum.... the only use here is its calcium content.... which I can get elsewhere.

and... a soil test is always a good bet!!!  "know to grow"