Audiofilet
Member
I prefer 2-1-2 or 2-1-3 (N-P2O5-K2O) all the way through at an EC of 1,2-1,3 (daily fertigation in a peat/perlite/vermiculite based soilless substrate). Nowadays i lean more toward 2-1-2 (after years of 2-1-3) as it was recommended by Dr. Bruce Bugbee from Utah State University for cannabis and so far it is working like a charm. That corresponds roughly to elemental N-P-K ppm of 120-26-100. Prior to trying this i was a bit sceptical about those low P and K numbers but it seems more than adequate and yield and quality are really excellent. Although i don't see that much of a difference to 2-1-3 which works equally as good in my experience.what ratio do you prefer?