Hi all, Happy holidays. I was hoping for some help relating to my super lemon haze plant. She is in her 4th week of flowering and recently started yellowing. Could anyone help me in diagnosing my problem. Thanks in advance. Setup (Very Basic): Method - DWC Light - 450 Watts Vipaspectra Tent - 4 x 2 Temp - 23c / 73f (day) - 18c / 64f (night) Ventilation - 230 CFM + 2 oscillating fan. Nutrients - Local cannabis brew. I have followed their instructions. Cal Mag supplement. Ph- 6.0
G'day there, You have a Potassium "K" deficiency for sure, these chart's will help you along. What is a "local cannabis" brew? A Witch's Potion/Custom Fertilizer. What are you actually feeding her, the NPK Value's?
One of this things that makes me think it's not Potassium deficiency is because it's happening everywhere. Not starting from the bottom. I am using a 2 part solution. (Part 1 - 0-4-4) (part 2 - 2-0-0) 1:1 ratio.
It dont think it has to start from the bottom, what is happening is that you are in flowering. The plant is now wanting more Potassium "K" than your providing. Imo.. Here is a little calculation of the NPK, For Flowering "Cannabis" need's less N and more P & K. A fruiting Tomato plant also need's less N, but it want's more P than K. The numbers look like this "say", Vegetation Cannabis = 25N:5P:8.8K Flowering Cannabis = 2N:10P:20K You want more (double) K than P. A Fruiting Tomato want's it backwards, as 2N:20P:10K. It like's more Phosphorus than Potassium (double) to the relation to P & K. All the best...
Thanks your reply. I will get get some new solution in my system. Do you think it's too late for it to recover ?
Just wait for someone else to agree, because i could be wrong & i dont want to mess your grow around.
If you stop cal mag but keep doin everything else the same you will know in a couple days if it was the right move
Thanks for the information. The problem has been apparent for 5 days and progressively getting worse each day. If the Cal Mag diagnosis is correct do you think this would have signification impact to my yield and do you think it can recover at this point?
Good Morning, i dont see any Calcium or Magnesium deficiency in your leave's, you can still use your CalMag if you want & if needed. I would just add more "K" to the equation, im pretty sure it's just that.