Nitrogen/calcium/zinc/potassium or sulfur deficiency?

Discussion in 'First Time Marijuana Growers' started by ligong2, Jan 29, 2017.

  1. HI o/

    In the vegetative stage, i had thrips and a cat eating some leaves, but in overall, i had no real problem (this is me second grow). Now, my plant is in his third weeks into flowering and i'm pretty sure i have a nutrient deficiency. For the past 3 weeks, slowly, most of my leaves are turning into a light green color and some leaves are curving. It seems to affect much more the top leaves than the bottom one. I know it is normal for leaves to turn yellow as harvesting time approaches, but since i'm only in my third week...

    [​IMG]

    From what [​IMG][/URL][/IMG]i've read, nitrogen/zinc/potassium and sulfur can all cause leaves to turn a lighter green than normal, but i've read/saw nothing about leaves curling this way so, yeah, i don't really know what's happening with my plant and it seems the smaller leaves (see the pic) under the big one aren't affected at all. Any help would be quite welcome =)

    My PH is between 6.5 and 7.0.

    [​IMG]

    Thank you!
     

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