Does anyone else think these babys are K deficient

[Striker1234]

So these babys were turining really yellow a couple days ago so i added a bunch of nutes to them and they turned nice and green again but now a few of the leaves are turning yellow around the edges and the tips are browning to a crisp just on the tips though theyre in the middle of week 6 of flowering and next week im starting the flush before the chop....just wondering if this looks like K deficiency to anyone else. And is there anything elsi that i can do over the next week or 2 to get thesew babys to plump up im not gonna get that much out of them as it stands....i just dont understand how people get like a pound out of one plant im a newb so i suppose i will get better with time bu...i dunno just a little depressed cuz of my yeild

 

[chuewy]

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[Striker1234]

its in flower

 

[grimmace]

looks like it's starting to burn to me. if the stems are starting to purple (and it's not a dj short strain. blueberry, flo etc.) that is a sign of over feeding. purple stems are a sign of lockout from overfeeding. and the leaves get crispy from the ends in. new growth will be small leaves and veins get "indented" in he leaf. it can be hard to distinguish between over and under fertilizing, but deficiencies usually don't result in a dry crispy leaf... at least not until it goes completely yellow. the ends curling up also makes me think lockout from over feeding.

 

[Striker1234]

thrers no purpling

 

[grimmace]

last other thing. are the roots healthy? that's the only other thing besides potassium deficiency i can think of. hope they are gettin better!

 

[Striker1234]

i only have one plant now one petty much died and i think im going to scrap the other one and use the room for vegging the clones of this one that are in soil this time