Actually its stronger then that, thats just the base cause for soil you would use Gro Terra 20-20-20,Bloom Terra 15-31-14 and the Super Boost 11-49-9 and Bud Blaster 1-52-31 i have no idea why it is so strong i kno its a powder not a liquid nute line so its sobule or w.e i know for sure though that it works.for damn sure some top shelf. seen,used,LOVED