Quote:
Originally Posted by AKmark
You must supplement with CaNO3, as well as MgSO4. I highly suggest looking into this before you use it. Hydro Gardens uses a similar blend, get on their site and look at their tomato formula directions
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Thanks Mark. MasterBlend has a component of each to be added to the N component. No where does it tell me how much or how often, let alone method of delivery.