Indoor pk13/14 in 65/ 70 day autos..when and how much ?

[hairyscotsman]

I am wondering when to add pk 13/14 to 65/70 day autos.

Also at what rate do i add to 20l oxy pots.

Thanks

 

[namvet]

Is 13/14 the phosphurous and potasium count in the nutes? If so you should add flowering nutes at first sign of pistols .

 

[dwcgrow]

I use pk13/14 4(four) weeks before chop, on CANNAs website it says to apply for one week and not to use three weeks before harvest. I am now trying to use it at half dose each week for 2 weeks, while still not using it 3 weeks before harvest (basically adding half dose a week earlier).
Hope this helps man.

PS: Sorry if it doesn't make sense, i'm quite stoned.

 

[insert name here]

Ahh the stoned post....

I have seens SB spread it out over a two week period, also I think that even when the seed says 65-70 days they can usually strech out another week, just what I have seen on this site from many grows, they go a bit longer.