Deficiency/pH Problem?

[wiggum]

Hey all. Have a problem. I'm guessing either a pH problem or magnesium or nitrogen problem. All are likely related to the pH, but that's why I'm here; I don't know. The pictures will tell more than I can, but they're exhibiting nitrogen or magnesium problems from the pictures I've seen, I think.
Can anyone help?

Thanks!

[wiggum]

I've been using fox farm nutes: grow big, big bloom and tiger bloom. I don't think it can be an overfertilizing problem...been giving only half the recommended dosage every two to three weeks. Help!

[Funkopath]

yep its a nitrogen deficiency wiggum ...& some light intensity stress

start feeding every 10 days ..at the same strength your using now & raise the light till 80 cm's above the plant

[SmknVTEC]

Probably N. What is the soil pH?

[wiggum]

I'm using two 150 watt HPS. How high should the lights be? The temp is always roughly 76 F with lights on. The temp sometimes drops to around 62 F with lights off. Could cold temps be a problem?
Unless the soil pH meter is malfunctioning...the soil pH is roughly 7.
Could a nitrogen deficiency cause necrosis like you can see in one of the pictures? It is my understanding that a nitrogen deficiency would cause a more uniform, yellowing of the leaves.
I still think it's nutrient lockup due to pH, regardless of my crappy meter.

[BUDS-R-US]

Hi
The temps you say seem fine, the temp drop is good at night !! you got a fan on them? check this FAQ will prob help you and also check my grow log i just started using some products to make the buds swell check my grow log and I look foward to seeing your end product!!

[wiggum]

Buds,

Thanks for the response. Yep, got an oscillating fan on them. Sometimes have to turn off at night to keep the temp in a decent range, but lights are always on during the day.
How do i view your grow log? Flushed them a couple days ago just to be sure it wasn't a lockup.
When is an appropriate time to feed after flushing? While the soil is still wet or should I wait until I normally would to water?
Like I previously mentioned, I'm using Fox Farm nutes: grow big, big bloom and tiger bloom. There doesn't seem to be much nitrogen in the grow big (veg fert), should I use an all purpose fertilizer I have for my houseplants. It's 20-20-20, which also seems perhaps a bit high.
Any feedback can only help.

Thanks

[SmknVTEC]

You are right.
Looks like fert burn. The necrosis is showing us burn I think. Keep with the fox farms it is better than the house plant stuff and just kick back on the dosage.

[BUDS-R-US]

I never put link on sorry was wrecked last night oh shit iam wrecked again
http://www.drugs-forum.com/growfaq/97.htm

My grow log http://forum.grasscity.com/general-i...you-think.html

[wiggum]

I thought nute burn was a possibility, but I have been extra careful, almost too careful, not to overfeed. I have literally been using half the recommended dosage on every water...and I only feed half the times I water. Thus, I don't think it is nute burn. I think it could be nute burn attributed to pH...meaning I don't think they're getting enough.
I simply don't know. Most of the nutrient burn/nitrogen/magnesiium/pH problems look the same.
Anyone have the perfect solution for me?

"Ahh, alcohol; the cure and cause of all of life's problems." - Homer Simpson

[Funkopath]

yes wiggum your pH is too high ...you should of been feeding more often
something seems to be locking up & it was burning the leaves a bit , probably pottasium

but dont pay attention to bottom leaves , they are suppose to yellow out & die off in flower

once a leaf has been damaged ...thats it ! ..its damaged ...dont sit there waiting for it to heal , because it doesn't work that way ...just pay attention to the bud growth now

the yellowing tops ..is most important ...& it is called Bleaching ...it's from the light being too close ...raise the light & let her recover abit

peace John

[BUDS-R-US]

http://www.drugs-forum.com/growfaq/97.htm look at figure 8 def your prob Nitrogen lack of it!!

I had same prob and started using this stuff called Nitrozyme they look much better

[Funkopath]

figure 9 is wiggums prob ...figure 8 is also when a plant gets root-bound

peace John

[wiggum]

On another subject, do any of you folks think that I have too many colas/budding sites from the picture of the 3 plants?? What is the trimming recommendation to get big/quality buds?

[BUDS-R-US]

Sorry I did actually mean 9 I thought number 9 was the one below it fuck me iam dumb.

You can never have too many bud points more the better!!

Also funkopath what strain do you recomend from Nirvana I just got the snow white, any other sug