I bought 5l of this: N 150-400mg/l P2O5 80-250mg/l K20 250-650mg/l will plant autoflower some Lowryder, Easyrider and AK47. From some posts seems the soil is not good coz for rooting and flowering should be high in P and veg high in N. That one is high in K. can I start growing in this soil and add some nuts P rich to compensate? Or better to buy different soil, but I am afraid all are high in K ( I am in east europe).
I would buy a soil that is not pre-ferted. Then, I would add amendments (perlite, vermiculite, worm castings, etc.) to it and get a good set of nutes to use from veg to flower (like Fox Farms Soil Trio). Good luck.