Yellowing leafs

[byrnezie]

These two bagseeds were planted on the 26th.I have a 115w CFL 2100k (wrong spectrum, i know) and a 20w 5xxxk to balence it out a bit.I have 2pc fans obe for intake one for blowing the plants.SHOULD IT BLOW DIRECT ON THE PLANTS.

I gave the a light dose of nutes yesterday,but i useualy dont start untill the 2nd week.

ANY HELP!!!!!

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byrnezie Reviewed by byrnezie on 01-11-2011. Yellowing leafs These two bagseeds were planted on the 26th.I have a 115w CFL 2100k (wrong spectrum, i know) and a 20w 5xxxk to balence it out a bit.I have 2pc fans obe for intake one for blowing the plants.SHOULD IT BLOW DIRECT ON THE PLANTS. I gave the a light dose of nutes yesterday,but i useualy dont start untill the 2nd week. ANY HELP!!!!! Rating: 5

[byrnezie]

Bump i need help

[poker2]

SHOULD IT BLOW DIRECT ON THE PLANTS.
I gave the a light dose of nutes yesterday,but i useualy dont start untill the 2nd week.

Well.... About your fan question: Blow the air directly on the plant BUTTT make sure the fan is revolving so it blows then moves away then blows and so on
For your nute question... you said you gave it nutes earlier than normal? (Helpful for some of the pro's :thumbsup:, add more info about what nutes and how much Nitrogen etc it contains) Maybe ,you might have to flush but DO NOT do that until someone else also recommends it because that is only WHAT I THINK :jointsmile:. Good luck mate!

[tevfik]

These two bagseeds were planted on the 26th.I have a 115w CFL 2100k (wrong spectrum, i know) and a 20w 5xxxk to balence it out a bit.I have 2pc fans obe for intake one for blowing the plants.SHOULD IT BLOW DIRECT ON THE PLANTS.

I gave the a light dose of nutes yesterday,but i useualy dont start untill the 2nd week.

You can grow with that spectrum as well. Plants can just stretch a bit more.
It should blow air directly on the plants. Revolving is not needed with small fans.
But your problem is not about your light or fans. It's about your medium/watering/feeding.
Give more information, take more help.
Start here: http://boards.cannabis.com/plant-pro...ing-forms.html

[polishpollack]

If those leaves are turning brown, especially at the tips first, then the rest later, I'd say you've given too much fert. If that's the case, flusing with water would be smart.

[italianx]

hey all im a newbie it seems i have the same problem ... yellow bottom leaves.
just to mention ive just installed an exhaust fan at the bottom of my grow box, im not sure if this is the right thing to do or should i put it on the top ? (intake fan is on top now) is this a big issue ? thank you:rastasmoke:

[LEPRECHAUNvi]

Looks like their growing full and lush. Whats your soil p.h water p.h runnoff ph?

i had the same problems on my last grow, monitering your ph is vital.

[polishpollack]

italianx, if you're bottom leaves are turning yellow you probably need to give a little fertilizer. This is different from leaf tips turning brown after fertilizing, which probably means the grower has given too much fert. On your fan, you put a fan in there to exchange air, bring in CO2, control temps, and to knock plants around a little, make them wiggle. The wiggling will cause the stems to strengthen so they will stand up straight as they grow. Otherwise, they will fall over.

[italianx]

italianx, if you're bottom leaves are turning yellow you probably need to give a little fertilizer. This is different from leaf tips turning brown after fertilizing, which probably means the grower has given too much fert. On your fan, you put a fan in there to exchange air, bring in CO2, control temps, and to knock plants around a little, make them wiggle. The wiggling will cause the stems to strengthen so they will stand up straight as they grow. Otherwise, they will fall over.

thank man for the info i will upload some pics soon so u can see them ...
should i put the intake fan down and the exhaust up ? or it doesnt matter ?!
tnx ))

[tevfik]

thank man for the info i will upload some pics soon so u can see them ...
should i put the intake fan down and the exhaust up ? or it doesnt matter ?!
tnx ))

If you know the basic laws of physics you can see. Warm air rises.