Help! Potassium deficiency?

K

kerryman

New Member
Hi all.

My plants are into week seven of flower and over the last couple of weeks the leaves have begun to develop brown spots, turning yellow and dying. This is starting to effect new leaves also but the buds seem ok for now.
Is this a result of potassium deficiency or something else? Attached are some pics.

Please help as I'm worried that my buds will get ruined.

Thanks


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Hey there we will need some pics without thelight on or the plant away from the light makes it hard to really see anything, even though they look kinda rough cant really see any color, Peace OG
 
Hi OG1969. Thanks for the response. I see what you mean. Attached are some better pics...hopefully you know what's wrong.
I flushed the plants last night as maybe it's a result of nutrient burn but really I don't have a clue whats wrong.
Thanks for your help

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Mmm i've seen some pretty messed up plants in my time here at 420 & that one deserves an award :bravo:


Ya gonna need to fill some details in so that we can help abit more !


1. What ya suing hydroponic system or growing soil & what medium ?

2. Nutrients used and what brand ?

3. PH of hydro water resevre on average of PH of soil/compost ?

4. What water are using RO, soft or hard water ?



Got a funny feeling of a bad arse calcium def... might be related to RO/soft water or possible coco coir growing medium if used !
 
Holy shit lol.

The buds dont look half bad considering how horrible the leaves look.
 
Hi. Thanks for the reply. I'm growing in soil/perlite. I use Canna nutrients and watered every couple of days with rainwater until about three weeks ago when I started using tap water (ph 6.9). I flushed the plants a week ago and have stopped using nutrients. This is my first grow so I'm not sure the best way to check soil ph. I think I will have to invest in a digital ph tester.

You may be right about the calcium deficiency but maybe there is something else going on there too. I plan on harvesting in the next few days so hopefully there isn't too much damage done.
 
Id recommend flushing for a few days before chopping. Nobody wants harsh bad tasting smoke.
 
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