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OfflineDr. Awesome

Registered: 01/18/09
Posts: 55
Last seen: 7 months, 5 days
leaves curling
    #225270 - 05/11/09 08:37 PM (9 years, 1 month ago)

Hydro Growers:
1. Are you growing from seed or clones?  seed
2. How old are your plants? approx 4-5 weeks
3. How tall are your plants? 24-28"
4. What type of hydro system are you using? DWC
5. What brand/type of nutrients are you using? advanced nutrients micro-grow-bloom following the feeding chart on the advanced nutrients website
6. What is the Ph of your nutrient solution? 5.9
7. What is the PPM/EC of your tap water? <250
8. What is the PPM/EC of your nutrient solution? 1.6 EC
9. What is the temperature of your nutrient solution? not sure
10. Does your PPM/EC show a rise or fall when you do your daily PPM check?  no
11. Does your pH show a rise or fall when you do your daily check? no
12. Do you foliar feed or spray your plants with anything? no
13. What kind of lights do you use and how many watts combined? (HPS, MH, fluorescent, halogen, incandescent "plant lights") 600W MH
14. How close are your lights to the plants? 16"
15. What size is your grow space in square feet? approx 9sq ft.
16. What is the temperature and humidity in your grow space? 83 F approx 50% RH
17. Have you noticed any insect activity in your grow space? no
18. How much experience do you have growing?  grown in soil successfully harvest 3 crops, first attempt at growing hydroponic
system with a sprinkler system under a 400W MH. 

i took cuttings from it rooted them and moved this plant into a new DWC hydro unit.  ive been keeping it on an identical feeding schedule.  the only things that have changed for this plant that i can think of is a higher room temperature my closet stays rather cool at 78-79F, a higher humidity, my closet is usually around 30-40% and a brighter light.  my closet has an air cooled 400 watt, and the room the plant is in now has a 600W MH in an open bat-wing style reflector.  and of course the small DWC unit i built specifically for this plant so it could be moved to another room.

the leaves started becoming droopy and curling under about 3-4 days after moving it.  the further up the plant the more the leaves droop and curl.    here are some pictures

there is also something else i have noticed, and that is that teh plants stalk has become so thick that teh netpot is actually bowing out, to the point where there are stress lines in teh plastic. im not sure if it is possible that this is somehow choking the plant off from taking nutrients up from the roots.  but thought it might be worth mentioning. 

if the plant seems a bit this it is because i prune it on a weekly basis. to keep teh larger leaves form shadowing new shoots.  i try not to get carried away tho :wink:

any input would be very greatly appreciated.  thanks guys.

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The Chemist

Registered: 10/02/08
Posts: 739
Last seen: 7 years, 4 months
Re: leaves curling [Re: Dr. Awesome]
    #225356 - 05/11/09 10:34 PM (9 years, 1 month ago)

The tips of your leaves of burning and they are losing color. Do a full flush until you are positive your res and plant are completely clean of all salts and everything. After this lower your nute levels, it looks like a nitrogen burn but then again with temps at 83f it could just be a combination of both. Do the flush and get your temp into the 70s.


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Registered: 04/20/08
Posts: 4,734
Trusted Cultivator
Re: leaves curling [Re: TheShroomJew23]
    #225534 - 05/12/09 12:24 PM (9 years, 1 month ago)

Too much N


MFDoom666: sobriety kills my buzz every time.

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CNC Machinist/Greenthumb
Male User Gallery

Registered: 06/01/08
Posts: 9,953
Loc: North Star Flag
Re: leaves curling [Re: coda]
    #225768 - 05/13/09 12:25 AM (9 years, 1 month ago)

Dude you better kick that bitch into flowering after you fix that N problem... it's gonna be huge when its finished! You'll probably get quite a few ounces from that slut!

Don't criticize what you can't understand

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OfflineDr. Awesome

Registered: 01/18/09
Posts: 55
Last seen: 7 months, 5 days
Re: leaves curling [Re: Inverted]
    #226543 - 05/15/09 03:18 AM (9 years, 1 month ago)

not sure what to do at this point.  it has gotten worse, poor girl is looking quite sick right now.  none of the  leaves are dead or dying to the point where they come of with a light pull, so im taking that as a good sign.  when i emptied the reservoir, it was getting kinda stinky, so im wondering if i have some root rot too? the water was also quite warm when i stuck my hand in to unhook the air stone.  earlier today i filled the reservoir with new clean water that has been sitting out in a large rubbermaid garbage pail and ph balanced at 5.8.  i added a couple cap fulls of 3% H2O2 to the water, moved the air pump outside of the grow area where it is a bit cooler and hopefully is helping keep the reservoir even a couple degrees cooler. 

is there anything else i can do to help her bounce back a bit quicker?

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