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  • N-P-K Ratio

    Posted by ECGrower on May 10, 2021 at 8:27 pm

    Anyone know what is the best N-P-K ratios for veg, flower, and late flower are?

    I’ve been growing for a few years, but when it comes to nutes, I hate to admit it but I am guessing most of the time. I am using GH trio line with Cal Mag to supplement. While in veg I will use equal parts micro, grow and bloom. When I transition to flower I will slowly ease off grow and up bloom and in late bloom I will drop grow all together. However, doing the math on the NPK ratios if I use equal parts of the trio line with cal mag to supplement my nitrogen seems low compared to my phosphorus and potassium. Often I will get nut burn with the ppm relatively low in my opinion at 600ppm. Needless to say I think there is some missed potential here. Here is a break down for reference.

    For Veg added in equal parts:

    FloraMicro = 5-0-1

    FloraGro = 2-1-6

    FloraBloom = 0-5-4

    NPK ratio comes out to 7-6-10


    For Flower:

    FloraMicro = 5-0-1

    FloraGro = 2-1-6

    FloraBloom = (0-5-4)x2

    NPK ratio comes out to 7-11-15

    For late flower

    FloraMicro = 5-0-1

    FloraBloom = (0-5-4)x2

    NPK ratio comes out to 5-10-9

    Anyone had any success with a different NPK ratios.

    ECGrower replied 3 years, 1 month ago 1 Member · 0 Replies
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