Detroitgrow
- 29
- 3
Normal..self defoliation
I don't believe your P/K ratio there is correct. 1 to 4% of the plants dry weight is potassium (almost as much as nitrogen), while phosphorus only consists of about 0.1-0.5%, which is an order of magnitude of difference. This is an end of life measurement i believe, so i think the ratio of P/K would be even lower in the vegetative phase. But don't quote me on that. ;)Believe it or not a cannabis plant only requires 30 ppm Potassium and 70 ppm Phosphorus to produce world class bud.
I'd suggest the OP keep a close eye on his nutrient solution P.H. so as to keep her happily down the middle of the P.H green zone for Phosphorus and Potassium. But at this point I'd refrain from any fixes that could mess up a pretty nice looking plant at this stage of it's life cycle.