concentration

  1. TwoBirdStoned

    Can someone please explain nutrient calculations to me?

    I've seen calculations for NPK done a few different ways and want to get the facts straight. Nutrients: Veg Nutrient: 9-3-6 Bloom Nutrients 3-12-6 Mag Pro - 2-15-4 Protekt 0-0-3 Where N = NH4 and NO3 , P = P205 , and K = K2O Is it as simple as averaging the numbers off the bottle...