Biotabs Calcium defficiency?

Not a calcium deficiency but a nitrogen excess causing burning. I am not a fan of tabs of any sort, they are too imprecise and much prefer liquid fertilizers that can be controlled much more effectively and applied only as required.

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pH determines the best absorption for nutrients directly absorbed by the plant from mineral fertilizers. With organic cultivation, mycorrhizae determine what the plant takes in and in what quantities, regardless of pH. Obviously, an extreme pH can harm the cultivation, so it's good to keep an eye on it, but it's not decisive.

since it's organic cultivation, pH takes a back seat, so I would suggest Epsom salts or Cal Mag... I prefer Cal Mag...

Thank you for your advice. You were totally right, the run off ph was between 5.06 - 5.60 MY healthy plant had 6,5 ph run off. So is it a good idea to put some dolomite lime into the soil to upper the ph ?