Once you mix the solution there is no way to find the npk ratio , but what you can do is calculate the TDS ... So you take plain water , measure that TDS, then you add your npk and measure the TDS. TDS of the solution - TDS of the plain water is the TDS of the npk. Now of you want to know how much n how much p how much k there is ... Well no you can't do that with home tools... But if you look on the bottle you will have that information in terms of a ratio at least... Somewhere there will be that information but sometimes it is not labelled clearly like it's only three numbers like 10/2/3 (veg nutes) or 3/10/10 or 12/24/24 (bloom nutes) that's the npk ratio... So for example in the last one it's 1/2/2 so if you put something like 10ml in 0.99L your n will be 2ml/L... Does that make sense ? Hope this helps ! :rocket:
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