Leaves turning yellow, 14 days in (no nutes just Co2 so far)

RecklessReese · Sep 12, 2011

I have just started using carbon dioxide tabs.. i have not yet used any nutes.. just brita filtered water, i have 20% compost 40% soil and 40% perlite in 9cm x 9cm pots.. a 300w CFL and a 125w dual spec cfl.. the heat is around 30 degrees celcium 35% but im hoping that will raise when i get my other fans..

i have attached a few images.. if you can help me please let me know

ak.fortyseven · Sep 12, 2011

Looks like they need some nutes. Easy does it.

RecklessReese · Sep 12, 2011

40% top soil
40% surestart perlite
20% multi purpose compost with added JI

ak.fortyseven · Sep 12, 2011

Yea, I would give them some nutes, go easy, always best to start low rather than give them too much. They look nice though, just a lil deficient.

joker1420 · Sep 12, 2011

It looks like a nitrogen def it should green back up

Harrekin · Sep 12, 2011

joker1420 said:
It looks like a nitrogen def it should green back up

If its yellowed already it wont green back up, you can only stop the spread of N def once its started, not reverse the effects sadly.

Bit of minor heat stress there too, Id fix that before flowering or it'll effect your yield bigtime. Aside from that they look pretty God-damn decent! Id forget any sorta CO2 boosters unless you're running a sealed room, otherwise they'll break your heart man.

Hope this helps...

RecklessReese · Sep 12, 2011

Harrekin said:
If its yellowed already it wont green back up, you can only stop the spread of N def once its started, not reverse the effects sadly.

Hope this helps...

so do you think i should trim the yellow leaves or leave then to die of their own accord?

ak.fortyseven · Sep 12, 2011

RecklessReese said:
so do you think i should trim the yellow leaves or leave then to die of their own accord?

They arent hurting anything, let the plant use them to fuel the growing shoots. They will fall off on there own when the plant decides to drop em.

RecklessReese · Sep 14, 2011

ok thanks..

also is there anyway i can cool it down.. ive got 1 x 80mm computer fan blowing out at the top and 1 x 120mm computer fan also blowing out at the top.. then the same blowing in further down the left side.. temps have dropped to about 29 degrees celcius but i cannot seem to get it lower.. do you think an air conditioner would help?

RecklessReese · Sep 14, 2011

And I am nuting with Tomatorite at 6, 2, 4.. How often should I nute as they still look asif they're turning more yellow??

tet1953 · Sep 14, 2011

A bit of epsom salt wouldn't hurt either. Just a bit..maybe a tsp per gallon, one application for now. I had a couple newly potted plants start to show mag def before they really needed nutes. A little epsom cleared it right up.

RecklessReese · Sep 14, 2011

bump..

edges of the leaves seem to be dipping and the lower leaves are turning less and less green :O helpp meee?

Bonzi Lighthouse · Sep 14, 2011

FEED ME SEYMOUR!!!!!

RecklessReese · Sep 15, 2011

anybodyyy?

ak.fortyseven · Sep 15, 2011

If you fed them, it takes a day or two for them to strart to livin up in soil. Don't get anxious and over do it.

ak.fortyseven · Sep 15, 2011

And about your fan questions, check out this thread I helped out some others with your same questions:

https://www.rollitup.org/grow-room-design-setup/464882-fans-thread.html

Leaves turning yellow, 14 days in (no nutes just Co2 so far)

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