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Discussion in 'Advanced Growing Techniques' started by jodybravo, Oct 2, 2007.
i was wondering whats the hight ppm you could push your mj to
withtout nute burn (i was told 1200)
would depend on strain sativa 1000/1400ppm indica 1400/1800ppm
I have seen WW survive at 1800ppm, but then again, Willie Nelson croaked at 1500ppm...
I usually keep it under 1300 ppm for mature Moms, and under 800 ppm for clones or seedlings