@GrowingGrannie,
Firstly soil range is 6.2-6.8 , reality 6.2-6.5, best 6.3. Those are facts, 6.1 or lower, will cause nitrogen absorption problems.
I think it woul be an interesting read for both of you
https://www.growbarato.net/blog/en/deficiencies-due-to-excess-nutrients/
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