yellow on my leaf ??

lunyk

Active Member

• Feb 16, 2008

• #1

since 2 weeks that my plant are under 2 fluorescent tubes of 32watts runing 18hours per day, the temperature are 75F and the humidity 60%. and now some leafs are getting yellow... some one could help me with that ???

 

FourTwenty47

Well-Known Member

• Feb 16, 2008

• #2

Pics...Ditch the fluorescents try to get a HID if you can. 150-250 dollar investment. Much better result. Yellow can be cause by Over watering and some times lack of nutes.

 

lunyk

Active Member

• Feb 16, 2008

• #3

This is a picture of my plant:

 

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faralos

Well-Known Member

• Feb 16, 2008

• #4

I also am growing under 6 40w 4 foot tubed flourescents. Many times with these tubes my outer plants started to turn yellow, when I moved them under the middle of each bulb (more light is produced at bulb middle than at ends) they usually recovered. It may also be a watering problem. with flouros as I'm discovering, they tend to creat 'hot spots' within each tuibe, some areas under my tubes grow better plants than others. weird, but you gotta' figure it IS a 4 foot tube of light. and when it burns out it does it at the ends, so they are always dimmer there.

 

lunyk

Active Member

• Feb 17, 2008

• #5

bump bump bump...

 

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fdd2blk

Well-Known Member

• Feb 17, 2008

• #6

looks over watered or it wants some nitrogen. i'd say over watered first.

 

FourTwenty47

Well-Known Member

• Feb 17, 2008

• #7

Don't water it soo much. Water every 3-5 days depending on climate. Shouldn't water until dry at 2" deep. After you let it dry a little, add a light dose of nutes to your water. It's probably ready for food. It will be fine though...just don't smother your baby.

 

lunyk

Active Member

• Feb 17, 2008

• #8

ok thanks, it's probably over watering, and yes I have already started to add some fertilizer