Are the leaves showing signs of overdose? What should I do?

[zem]

I have never read that high phosphorous causes a nitrogen lock out.

Too much Phosphorus levels affect plant growth by suppressing the uptake of: Iron, potassium and Zinc, potentially causing deficiency symptoms of these nutrients to occur def in plants. A Zinc deficiency is most common under excessive phosphorus conditions,
As well as causing other nutrients to have absorption troubles like zinc and copper. Phosphorus fluctuates when concentrated and combined with calcium

Do you know how much P there is in phosphoric acid that is often used to ph down? it is a lot and by using that stuff without factoring it in leads to excess P issues.

 

[zem]

after 2 months after flip
yeah, that's a good advice, bro!
View attachment 368689

Can you elaborate? I lower the P earlier than that at about 5 weeks in. I used to use equal P and K till till week 8 but recently I heard from some sources that you need much more K than P in bulking phase. However the results were not quantifiable as i am not in a laboratory setup so there are lots of variables but I would like to hear your take on this. Thanks!

 

[John Kramer]

I heard from some sources that you need much more K than P in bulking phase.

yes indeed, i heard that too, but not from many sources, the high lvl of P needs only on P's window stage, then we lower it and give more of K... that's because we get a lot of flowers instead of fetuses

 

[zem]

yes indeed, i heard that too, but not from many sources, the high lvl of P needs only on P's window stage, then we lower it and give more of K... that's because we get a lot of flowers instead of fetuses

yes and peak bulking is around week 6 for me that is when i lower P and raise K. My understanding is that size of flowers is determined by this time. I am still fine tuning this so i appreciate this info