need a second opinion on this - GreenPassion.org - Dedicated to Medicinal Cannabis Cultivation and Education

green_nobody · #1 (**permalink**) 01-16-2008, 10:23 AM

To start out on what is going on:
I grow Nirvana White Widow on soil, using a 50/50 mix of perlite peat soil. the peat soil is quiet rich in nutes but according to the label it doesn't contain additional fertilizers nor time released ones.
I have got no working pH meter right now and water with pure demi water only. I guess this water to be around a pH of 7-7.5 but i have no way to check this right now.
the plant itself is sitting under 4 floro tubes in 6500K at 18/6 - fan running all the time.

By looking at it i would say the plant is suffering from pH cause phosphorus deficiency - but as it is always good to ask a second doc first before doing anything i pass this question now to you guys.

ClosetDWC · #2 (**permalink**) 01-16-2008, 12:15 PM

looks exactly like that to me too

green_nobody · #3 (**permalink**) 01-16-2008, 06:42 PM

thought so too, but returning now from my last check on that one makes me wonder even more what is going on - now the low leaves are turning yellow too.
So either i facing multiple lockout here or this is the worst ph-fluctuation i ever had.
will post some pics in a moment, just going down again with my camera.

ClosetDWC · #4 (**permalink**) 01-16-2008, 07:19 PM

ya either ph or not enough calcium and nit
i would add a little epsion salt and nit to is mabey mist the leaves so it will get it for sure and mabey that will let you know whats going on .... when i think i might have a lock up problem i will spray feed for a few days

green_nobody · #5 (**permalink**) 01-16-2008, 07:20 PM

Okay, got some now pictures - surely hope that my new meter will make it till tomorrow, the younger two don't look too good as well now...

by looking at it, it seems as the magnesium and potassium are lacking now as well - but see it yourself

green_nobody · #6 (**permalink**) 01-16-2008, 07:26 PM

Quote:

Originally Posted by ClosetDWC

ya either ph or not enough calcium and nit
i would add a little epsion salt and nit to is mabey mist the leaves so it will get it for sure and mabey that will let you know whats going on .... when i think i might have a lock up problem i will spray feed for a few days

i hate to spay fertilizers at a plant - ended up with a totally burned plant doing this once... but this is partly to hack anyway, so i going to try that - where is my epsion again?*searching*

green_nobody · #7 (**permalink**) 01-16-2008, 07:53 PM

did so, hope it helps a bit to keep it alive, so thanks for that input closet

use a mix of 1l tap water (7.5 to 7.8 last time i checked) 5ml saturated epson salt solution and 1ml of 7-3-6 all-utility fertilizer - didn't want to spray with biobizz grow as it is quiet sticky. hope it helps and not making things worse then they are right now as this mix wasn't checked for pH nor EC...

Hobo · #8 (**permalink**) 01-17-2008, 02:10 PM

it looks like a combination of several deficiencies, the sort of twisted growth is usually a Boron deficiency, can be fixed with adding eyewash solution, that has worked for me in the past. looks like its not getting enough N either, and all the yellowing starts at the bottom. perhaps the plant isnt getting the nutes it needs due to an out of whack PH. 7.5 PH, isn't that a little high? Probably cant take in as much water as it should? ... i guess just try different things one at a time, so you can see what actually fixs it. IMHO

Mogie · #9 (**permalink**) 01-17-2008, 08:19 PM

Okay lets work backwards. What has been ruled out?

Now what is left?

green_nobody · #10 (**permalink**) 01-18-2008, 08:33 PM

Quote:

Originally Posted by Mogie

Okay lets work backwards. What has been ruled out?

Now what is left?

what was known was that i couldn't pH my water after my meter broke/wasn't running properly (measured tap water with pH ~4 even if it is always around 7.5-7.8) but that i got fixed during work by some in the service shop of the place where i work.
so this is mainly a pH problem that locked nutes out.

what could been ruled out would be over-watering, over fertilization as i didn't gave any so far.

A question mark could be still the soil as i couldn't get my usual low cost brand that hold nothing then peat and compost to it - it could be that this new soil holds a bit more nutes to it but the contents list holds no time released - such a noob i wouldn't do to my babies

by looking at what i'm been doing there i would say it was pH related and that is taken care of now.

i will post some fresh pictures tomorrow - if it gotten worse i been wrong and the search will go on or if i been right we can kick back and watch it grow

green_nobody · #11 (**permalink**) 01-18-2008, 08:42 PM

Quote:

Originally Posted by Hobo

it looks like a combination of several deficiencies, the sort of twisted growth is usually a Boron deficiency, can be fixed with adding eyewash solution, that has worked for me in the past. looks like its not getting enough N either, and all the yellowing starts at the bottom. perhaps the plant isnt getting the nutes it needs due to an out of whack PH. 7.5 PH, isn't that a little high? Probably cant take in as much water as it should? ... i guess just try different things one at a time, so you can see what actually fixs it. IMHO

yeah, 7.5 is far to high up to grow any with

and my soil was so beaten by me watering with un-pH water that is was locking up everything - i changed that by adjusting it back to 6.8 - around this range it can take the major nutes again and recover a bit. got a way off anyways now, i was going to top it today but this will be done now sunday after me returning from church.

but what i'm really puzzled about is how i managed to grow any in my teens - i had neither pH paper nor ever any kind of meter... and still managed to grow well - but hey, that was strictly outdoors back then