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3rd Grow - Log

April 10
Temps 70-80 PH 5.9 RH 62%
Thinned out some of the middle of Hattie & and took a couple of lower leaves from The Queen. Nothing from Athena or Beverly. My goal this grow is to remove as little as possible. I think that will keep me from overdoing it a bit. I'd like to make sure the plants can use their stored energy. My last grow I think I took off to many big leaves.

Note: The autopots are not easily maneuvered for defoliation, especially with air domes attached, but it's doable.

April 11
As I was saying good morning I noticed that Athena has a brown spot on one of her leaves. After a quick re-read of the tutorial here, https://www.growweedeasy.com/cannabi...ium-deficiency I'm thinking maybe a calcium deficiency, but the spot is only on a single leaf on just one of the plants. I have looked very close at the other plants and the rest of Athena's leaves but there isn't a hint of a brown spot on any other leaf or plant in the tent.

Water in Athena's individual rez is 6.5. I have some FoxFarm Masta Cal-Mag but since I'm running the autopot system with super soil and no nutes in the main rez I'm not sure how to dose, or even should dose at this point.

The pics show an up-close of the leaf in question and a top down and side view of the rest of Athena.

I did have an oops moment four days ago (GWS). While making some adjustments to my circulating fan I turned off the ventilation fan and failed to turn it back on. Temps inside the tent reached 87f and 74% RH. My best guess is those conditions were present for a couple hours max. I think this cause I'm a bit of a mother hen. I check in on these plants regularly.

Could the brown spot be heat related?
 

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You and me both i'm sick of looking every hour LOL this staying at home is making me bat shit crazy and almost obsessing over my plants. Anyhoo I sure would not worry about that spot on the leaf. I'm not sure if that was heat related, mine tacoed but it was for a prolonged oops fan quit and I didn't catch it off. They look good to me, are they just waking up looking droopy?
 
SoOrbudgal...yes....just waking up. One of the four (Hattie) from the start has drooped about two hours before the lights go out and til about an hour after the lights go on. The others are starting to do the same thing. IDK why. Something else to try and understand?
 
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That isn’t heat related.. maybe early signs of some type of bug visit but I wouldn’t worry
 
Plants drooping pre lights out seems common in my last 2 auto grows. I didn't give it much thought except they seem to know when rest time is
and things turned out well.
 
Hi Golf, tagging along...

i think its calcium, like you suspect.
The fan off period may have influenced that... a slight reduction in water transpiration from that leaf, slight reduction in calcium movement...
i wouldnt worry too much about it, tbh. like Daskahn said.
 
April 12
Thinned out the middle of Athena and Beverly. Didn't take any big leaves. Noticed that Athena had another leaf with brown spots. Looked at the GWE library and decided the issue was a Calcium deficiency. Used a turkey baster to draw the water out of Athena's individual reservoir and replaced with fresh PH'd water properly dosed with Cal-Mag. None of the others are showing any problems. Will monitor

April 13
Put 18L in the Rez dosed with Generoot PH set to 5.9 Temps 70-76 RH 45-50% Light set at 26”

April 14
Have a better handle on temps and RH. Daytime temps 70-75F RH 45-50%

April 15
Temps 70-75 RH 45-50%
Looked in on the girls to see how Athena reacted to the Cal-Mag. Was surprised to see lower leaves on three plants turning yellow. And all of the girls look pale, like lime green. Looked at these articles, https://www.growweedeasy.com/cannabi...gen-deficiency and https://www.growweedeasy.com/why-cannabis-leaves-yellow and determined that I have a Nitrogen deficiency going on. So, drained the individual reservoir of each plant and refilled with PH'd water and N in the form of CX Horticulture Growth Enhancer 11-0-0 mixed at 1ml/L. Trying to get by with running my water through a filter and letting it sit for 24 hours before putting it in the rez. I think I may have killed the enzymes in the super soil. Maybe that's why I've thought they have been kind of growing slowly.

How long before I will know if the plants are using the N? Cause I'm wondering if I should change out the rez with fresh water and some nutes? Growing thus far with nothing but water and super soil I'm also wondering if my girls have just used up the nutes in the soil?
 

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golfnrl said:
I thought I'd try a grow log because I'm using an Autopot system and I want to share the experience in the event it is beneficial to someone else. My grow set up is listed below in the signature area. Germination...starting off in familiar territory, not saying I did/do everything right, but it worked. This part of the log goes through March 1. I'll add more over the next few days.

Feb 27
8:00pm Dropped 5 Strawberry Cough seeds by ILGM in room temp water

Feb 28
Transferred into Rapid Rooters at 6:00pm – 22 hours in the water. A few of the seeds were showing tails Temps 72-74 F RH 25%

Feb 29
Watered the Rapid Rooters with room temp PH'd water. Temps 72-74 RH 29%

March 1
Moistened the Rapid Rooters at 6:00pm - All 5 seeds have popped up, look viable and are growing, even the runt seed. Not bad considering I've had these seeds for 10 months. Began running a T5 light about 2” above the plants. Temps 72-74 RH 28%
Click to expand...

nice good luck for your 3rd grow...:smile:
 
RE: April 15 Post

I'm working through what I believe to be an N deficiency. My girls are displaying yellowing big leaves on the lower part of the plant. I've read several tutorials, have fed the plants, and have added CX Growth Enhancer to the rez water, to try and correct the problem. How long do I wait to see if what I am doing has a noticeable effect on the plants?
 
I’m not entirely sure because water is generally faster but I usually see a difference within a day or two so if you don’t see a difference in a few day to a week
 
hey Golf,

Nitrogen.. is typically taken up in a couple of hours...

...according to Harley Smith (https://www.youtube.com/watch?v=DMBc1TruMOw)
N deficiency when there is a general yellowing of the plant... like mentioned above...
if its only the bottom leaves.... possible Magnesium (Mg) deficiency
if its topside, possible iron deficiency.

You adding any Ca-Mg to the water?
 
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Hey FDP...I dosed the only plant with brown spots on just two leaves with Cal-mag at the recommended feed rate. After the Cal-Mag dose I haven't notice any new leaves with brown spots, but that plant also has the yellowing lower big leaves. Haven't dosed the others with Cal-Mag. I'm wondering if I should add some Cal-Mag to the others as well. And, if I should, how much to give?
 
I have Fox Farm Cal-Mag. 1-0-0. 1tsp/gal is the standard dose. 'Guaranteed Analysis' says Total Nitrogen 1.00%, Calcium 3.00% Magnesium 0.90%. Grow shops are open in my area if I need to get something else.
 
i think you'll be fine with what you have already..
that CX stuff is high N already...

-----> CX + calmag i'd give a go for a few days...

the one i'm using is plant magic Magne Cal+.

"... also Includes a full complement of trace elements

Total Nitrogen (N) 8.0%

Nitric Nitrogen 7.0%

Ammoniacal Nitrogen 1.0%

Water-soluble calcium oxide (CaO) 7.1%

Water-soluble magnesium oxide (MgO) 3.5%

Iron (Fe) chelated by EDTA 0.04%

Manganese (Mn) chelated by EDTA 0.01%

Zinc (Zn) chelated by EDTA 0.006%

N 2.6%
P 0.1%
K 0.3%
"
 
If the problem persists or gets worse and adding more does not work then I would suggest a flush which is contrary to autopot recommendations. I have had ph lockout a couple times with coco/perlite and Remo Nutes.
I flushed until the water ph'd at a decent level and ppm/ec dropped . Then I watered through with a weak nute solution and started up the res as per usual. Pain in the ass but it saved my plants.
Not sure with living soil.
Hope it improves in the next few days.
 
Thx JohnEmad...flushing sounds like the next step, if I have to. When you flushed your plants did you take the pots out of the tray to catch the runoff?
 
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