Lucas Formula and Maxibloom

RKRK

Member
I finished my first run using maxibloom the whole run with some calmag because it is "close" to lucas. It went well but I'm going to try and imitate a jacks 321 for the next run (jacks doesn't seem readily available in Canada).

While researching available dry fertilizers I found that the maxibloom doesn't actually hit the ppm ratios in lucas.

Npk ppm in lucas looks like this:
106
46
175

Maxibloom ppm is:
106
139
245

Potassium is quite a bit higher and the phosphorus is significantly higher.

Jack's 321 however looks like:
102
41
171

Which is pretty much identical to lucas.

So my question is... Is phosphorus ratio really not that important? A 1-2 N-K ratio is the important part? Any Canadians know where to get jacks 321 or a similar 5-12-26 formula?

Thanks
 
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