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Do you suppose this is N deficient???

V

Villain

Member
Well I am having some issues ALREADY!!! I am thinking N deficient, but I am not 100%. Yellowing seems to appear on the older/ lower leaves, and as far as I can tell between the veins. Take a look and please tell me what you think it may be and the best way to correct it.
HYDROPONICS/Aero Ponics

How long has this problem been going on?
A day or so
What system are you running?
Aero TAG style
What STRAIN are you growing?
Cotton Candy
What was the establishing technique?
Seeds
What is the age of your plants?
about a week into veg
How tall are the plants?
2-3 inches
What PHASE are the plants in?
Vegetative
What Technique are you using?
TAG
What substrate/medium are you using?
RockWool
What is the Water temperature?
between 55f and 70f
What color are your roots?
White
What Nutrient's are you using?
DM One series
What is the TDS/EC/PPM you are using?
425 PPM
What is the pH of the "Tank"?
5.2-5.8
Are you sure your calibration is correct on your equiptment?
Yes
When was your last watering?
About 30 seconds ago LOL (aero joke)
When was your last feeding change?
grow
How often do you clean your system:
Not at all yet
What size bulb are you using?
400w CMH
What is the distance to the canopy?
24"
What is your RH Factor(Relative Humidity)?
40%
What is the canopy temperature?
78f
What is the Day/Night Temp?
78 day/60 night
What is the current Air Flow?
172 cfm
Is the fan blowing directly at plants?
yes
Is your water HARD or SOFT?
Distilled
What water are you using?
Distilled
Has plant been recently pruned, cloned off of or pinched?
No
Have any pest chemicals been used? If so, What and When?
None
Are plant's infected with pest's?
No

 
Last edited:
M

mexilandrace

what is that container it is in?

And its just that one leaf?

it looks over watered a bit
 
ItsGrowTime

ItsGrowTime

gets some
Veteran
Looks more like a Calcium deficiency. N deficiency is a more uniform yellowing of leaves, not blotchy.
 
V

Villain

Member
Do you suggest cal-mag or what?
I guess this is the one of the circumstances of trying something somewhat new. not to many people can help in my specific situation. Does anyone have any suggestions to fix this? Is Cal-Mag a product I should look into?
 
ItsGrowTime

ItsGrowTime

gets some
Veteran
Cal-Mag wouldnt hurt, especially if you use RO water or have really clean tap water. Apply at 2 or 3ml/gal to start. Btw, what kinda of container is that? It could also be rootbound and need a bigger container.
 
V

Villain

Member
ItsGrowTime said:
Cal-Mag wouldnt hurt, especially if you use RO water or have really clean tap water. Apply at 2 or 3ml/gal to start. Btw, what kinda of container is that? It could also be rootbound and need a bigger container.
Click to expand...
They are not really in a container. They are Aero grown, and I use Distilled/RO water to water them. I will try and get Cal-Mag ASAP. The yellowing has gotten severally worse and they probably will not last the week out. I will have to start some more seeds I guess.
 
V

Villain

Member
Here are updated pictures of the sickness. I hope that we can nip this in the butt soon. I already ordered Cal-Mag Plus but I had to use my PP account which is connected to me CC. So to go along with plant sickness I can add nervousness to the stress list.
 
ItsGrowTime

ItsGrowTime

gets some
Veteran
135ppm? That's your problem right there. Start feeding those girls! They should be around 400 or 500 ppm by now. Your new pics are showing a start of N def as well. They are hungry.
 
V

Villain

Member
No no no thats 135 EC or 675 ppm. The problem started at 300 ppm and since Dutch Master recommends 800 for the first week, I bumped it up to 425 ppm. The problem persisted to get worse as the day went on so I bumped it up to 625 ppm. Now they will probably get nute burned from more than 600 ppm. I am almost ready to give up. and build another system.

Here is what I am thinking I did wrong. I stopped growing for about three years after growing DWC for a few years. I decided to get my feet wet in TAG but I think I am not ready for TAG yet. I read every little thing there is to read about TAG on this site, and I mean everything. I know TAG pretty well I think but I need to remember how to grow first. I haven't seen a live pot plant in years and I feel way out of my league right now. I also read the sick plants guide but I was actually surprised to find it nearly useless in this situation. I am using RO water in an aeroponic environment so nutrients are not delivered the same as hydro, or soil. The water has a PH of 7.0 and a TDS of 0 out of the bottle.

Does ay one have anymore input?
 
ItsGrowTime

ItsGrowTime

gets some
Veteran
I can't see your plants already being dead unless you cut them up and threw them away. They are weeds! I've had some really terrible looking plants start growing again as long as there are some barely living roots...and whatever the problem was got fixed.

Throw em in some DWCs to restart growth then try again. If already dead and culled, my condolensces. Stick with what you know.
 
reject

reject

Member
Yeah I've had some really bad looking plants come through and actually harvest some bud in the end.
 
M

mexilandrace

foil will react with anything acidic, I didn't even think of that.
 
V

Villain

Member
The tin foil just keeps the light out. It does not come in contact with water at all. Here is what some other guys put together to help me.

They say that it could be over watering from the RW being exposed to the aero. THe RW cubes were sobbing wet, I mean water logged to the max. The RW never had a chance to dry up even a little bit inside the earo chamber where humidity is 100% all the time. Also because I am using RO water with a 000 ppm. So the plants were not getting trace elements like Calcium, iron, and magnesium. So I went to the store and bought some Cal-Mag plus, and some netpots. Now the RW is no longer exposed to the aero chamber because of the pellets, and netpots. The Cal-Mag makes up for what is not in the water. I am hopeful that all will be well.
 
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