Kinda Lost on this one

growin4myhead

Active Member

• Dec 9, 2009

• #1

I have several successful grows under me Always vegged under MH and flowered under HPS. This time I am vegging this plant under a lumigrow LED grow light. Wondering what i am doing wrong here. Haven't seen these weird spots in any of my other grows.

 

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tom__420

Well-Known Member

• Dec 9, 2009

• #2

What are you feeding it? pH and ppm?
That isn't anything light related, looks like a nute burn

 

growin4myhead

Active Member

• Dec 9, 2009

• #3

tom__420 said:

What are you feeding it? pH and ppm?
That isn't anything light related, looks like a nute burn

Click to expand...

technaflora
PH is 5.8 Oh I may have forgot to mention I use hydroponics.
at 600 ppm

following their formula

http://www.technaflora.com/sharedfiles/USA3RFS2008.pdf

 

tom__420

Well-Known Member

• Dec 9, 2009

• #4

Yup that looks like nute burn, I start my seedlings off at 1/4 strength of what they suggest
I am using the same stuff for veg
Do a rez change and just use 1/4 strength nutes, should be around 300 ppm or so
That is most def nute burn

 

Ez3kiel

Member

• Dec 9, 2009

• #5

I'm wondering about this too because mine are doing this as well. My plants are about the same size, but they seem to be a little bit behind yours on whatever this is.

 

Ez3kiel

Member

• Dec 9, 2009

• #6

I have this same kinda thing, but I'm not adding nutes yet? Is mine still nute burn? I have Jiffy-Mix potting mix and the ph is 7.1

 

tom__420

Well-Known Member

• Dec 9, 2009

• #7

Is jiffy mix potting mix pre nuted? It could have burned your plants
Get that pH down to 6.5, 7.1 is way too high it is going to start locking out nutes if you don't correct it

 

C

confirin

Member

• Dec 9, 2009

• #8

I accept with information: That isn't anything light related, looks like a nute burn.

 

growin4myhead

Active Member

• Dec 9, 2009

• #9

confirin said:

I accept with information: That isn't anything light related, looks like a nute burn.

Click to expand...

I didn't actually mean for anyone to think that I thought this was light related just that I haven't run into this problem before. Up until i switched to the LED light.

 

tom__420

Well-Known Member

• Dec 9, 2009

• #10

Lower the nutes to around 300 ppm and you will be good to go
I am using 600 ppm on my 2 week old DWC plant

 

S

strain stalker

New Member

• Dec 9, 2009

• #11

....looks like you have a cal./mag. deficiency at first glance....which could be brought on by overwatering, overfeeding, ph out of range...exc...check out this photo gallery of plant abuse > http://www.ganjaguerrilla.net/

Good luck.

 

Ez3kiel

Member

• Dec 9, 2009

• #12

tom__420 said:

Is jiffy mix potting mix pre nuted? It could have burned your plants
Get that pH down to 6.5, 7.1 is way too high it is going to start locking out nutes if you don't correct it

Click to expand...

I'll work on lowering the soil ph and jiffy mix has no nutes.

strain stalker said:

....looks like you have a cal./mag. deficiency at first glance....which could be brought on by overwatering, overfeeding, ph out of range...exc...check out this photo gallery of plant abuse > http://www.ganjaguerrilla.net/

Good luck.

Click to expand...

Maybe I have the cal/mag deficiency because I just realized that I was over watering them.

My plants aren't as damaged as the ones pictured here, do you think I'll be able to save them?

 

snutter

Well-Known Member

• Dec 9, 2009

• #13

I have to agree. It looks like nute burn to me as well...

 

C

calibuddz

Active Member

• Dec 10, 2009

• #14

it looks like nute burn to me. i doubt at that stage, that it would be a deficiency. i dont even feed my seedlings or clones until they show me that they need em. usually the leaves will start to yellow slightly, indicating that it needs nutes. even then, i will only start out with a low dose, then slowly bring it up until vegging with full strength. your plants will also be much more sensitive to nutes under the LED. so LED grown plants save on much more than just electricity, but nutes as well.

 

growin4myhead

Active Member

• Dec 11, 2009

• #15

today's another day. You guys still think its nute burn?

 

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tom__420

Well-Known Member

• Dec 11, 2009

• #16

What's the pH?
The leaves curling is not good

 

growin4myhead

Active Member

• Dec 11, 2009

• #17

tom__420 said:

What's the pH?
The leaves curling is not good

Click to expand...

The PH is 5.8

 

growin4myhead

Active Member

• Dec 12, 2009

• #18

.............anyone?

 

G

ghostsamurai25

New Member

• Dec 12, 2009

• #19

Indirectly it is also a light problem, you did switch to leds which makes the plants growth slower than using mh.
So the plant doesnt use up all the nutes your use to giving them because they arent growing at a rate that would
utilize them.

 

RecUseOnly

Active Member

• Dec 13, 2009

• #20

i had Mg def on my grow that looked JUST like that one. But i agree thant your ppm level is a little too high for the plants as seedlings. It might be a Mg lockout due to high ppm.