Quote:
Originally Posted by aruzinsky
No, that would give you 11.25-6.25-25.625.
N = 50/(50+30) * 18 = 11.25
P = 50/(50+30) * 10 = 6.25
K = 50/(50+30) * 5 + 30/(50+30) * 60 = 25.625
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11.25-6.25-25.625
This is fine. It doesn't have to be exact. You will loose some due to gas loss and other ways so don't overthink it. Also consider how much compost and other organic matter you are feeding them. They are also getting some from your natural soil.
Don't let it stress you out and always start slow and build up so you don't burn the plants. Especially when small.