Organic fertiliser

It's one of those 'add some and see for yourself when you need more'... Ideally when you water until run off you will want to add more fertiliser once the previous dose has dissolved completely because even if there are some nutrients left in the soil, you wash them out. For veg phase there is definitely not enough potassium, you will need to add another fertiliser rich in K. For flower you will need to add both phosphorus and potassium. If you add cal-mag you may get nitrogen toxicity (as most cal-mag feeds also contain N). What worries me is the text at the bottom, that no plant should be used as food for minimum 3 weeks after adding this fertiliser. Of course you smoke weed, not eat it, but it still seems dodgy. I would worry about the harvest quality.