ou guys will really have a fit when I ripen these lol. Leaves are going to fall off and won't be any green to be found. In vegging, if bottom leaves are yellowing and all new branches and top growth are pretty and green, this is not a deficiency and many growers will start throwing nitrogen and cal mag ect. Not needed, once again just understand the tree and what it does. It eats off of itself to grow at times or repair damage roots. In flowering, it eats off of itself until death at the end and of course the better cannabinoids waiting at the end of a patient tunnel. If your new growth looks yellow or spotted ect, then yes there is a nutrition problem that needs attention. Blessings, rev.