A4

Hey Servadac, dude you have a jungle in their. Are you sure your name isn't Tarzan? That picture on 23 is Calcium deficiency and on 24, if you look about middle of the picture there is a large fan leaf with the lime green in between the veins. That looks like magnesium deficiency. Now, per what you were readin on Muddy's post(who is a grow God around here by the way) is absolutely correct. You are going to see some lower fan leaves begin dying off and it will slowly move up the plant as it reaches it's final stages of life. But, what you are seeing is the early stages of Cal/Mag deficiencies. I read in your first post that you weren't testing the ph of the soil. It is quite possible your ph has gotten a little out and is causing some lockout. I don't know if you have the ability to check the ph of your soil but I would suggest it. Regardless, I would be supplementing with some Cal/Mag. If you weren't so far in to flowering I would suggest you foliar feed them with 10ml/gallon but at this point you don't want any moisture getting in the buds.
Are you catching the water that runs out of your plant and checking the ph of this? That is important so to do the calculation for example. If you feed the plants at 6.5 and you catch the water coming out of the bottom and it is 7.0 you can assume that your actual soil ph is 7.5(x+6.5/2=7.0)<- I know you understand this. This is not perfect but it will get you pretty close without actually testing the soil. I would highly suggest this as nutrient uptake at this point is critical for bud development.
I hope that helps!
Are you catching the water that runs out of your plant and checking the ph of this? That is important so to do the calculation for example. If you feed the plants at 6.5 and you catch the water coming out of the bottom and it is 7.0 you can assume that your actual soil ph is 7.5(x+6.5/2=7.0)<- I know you understand this. This is not perfect but it will get you pretty close without actually testing the soil. I would highly suggest this as nutrient uptake at this point is critical for bud development.
I hope that helps!
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