New Grower Cosz First Grow

[Trifid]

Canoeing? Check your soil temperatures. Ideally they should be around 65-70F or 18 to 24C (Jorge Cervantes)

Temps exceeding 75F will cause the roots to cook, you'll damage some of the rhizoshere and the system may take up to 2 weeks to recover. Below 60F levels of dissolved oxygen, evaporation and nutrient uptake will slow down causing starvation. I get these symptons from time to time and they're not pleasant to look at.. much of the time its my day time soil temps exceeding the optimum

 

[coszumel]

Would soil temps not suffer too if my light is too low? The room is at about 80F with the light on.

cosz

 

[Muddy]

Good point on the dry soil pulling away from the sides of the pots. I always run my hand across the top of the soil first before watering to make sure it's pushed back against the side of the pot and fills those spaces in.

"Best way to water is by the weight of your pots. Get a feel for them when they are dry, and only water when they feel that way. Do give enough so that you see run off from the bottom of the pots. As nutrients are use they create a by product of salts. By getting run off when you water you help to flush out those salts and prevent them from building up in the soil. If they build up too much they can stop the plants ability to take up nutes. "

Hey Muddy don't want to be pedantic but just want to point out to first time growers that getting a feel for your plants well watered and dry is a good way to know when to water BUT watch out for the compost shrinking from the sides of your pot 'cause then the water has a tendency to run straight out the bottom and not get down to those vital roots, water well and test the weight of your pot AFTER watering as well.

Many composts now have a wetting agent that makes it easier to re-wet if your compost is too dry, the old peat based composts used to be a nightmare to wet if they got dry ( I am a nurseryman so know a bit, although not much compared to the knowledge base of this forum!)

---------- Post added 11-25-2011 at 10:35 AM ----------

There might be something to that but in your case I still think it was the hot soil causing an over nuting issue.

Fellow Growers,

I have been trying to do some research on my caneing leaves and hav come up with what I believe to be the problem. Maybe my light is too low. My buddy said that the plants natural defense to light is to taco. Makes sense becuase I have been running 24/0 at about 16-18 inches above the canopy. So this morning I turned the light off and adjusted the light to 24" Maybe I will install my timer and run 20/4 from here on out. Am I on the right path or is the OG talking? (c:


Cosz

 

[Trifid]

Would soil temps not suffer too if my light is too low? The room is at about 80F with the light on.

cosz

I find the best way to monitor the soil temperature is using a glass thermometer placed vertically into the medium - take readings throughout and average them (add the collected readings and divide by the number of readings you have). If the average temperature is outside the optimum range then adjust the air flow parameters accordingly.. High soil temperatures can cause pH fluctuations to occur as well as affecting gas exchange rates in the soil.. Initially this may cause buckling, curling and or canoeing of the leaves and a general decline in plant vitality. Since pH and macro-nutrient (NPK) solubility are directly related to temperature, incorrect temperatures or temperature fluctuations in the growing medium can lead to unexpected lock-outs/deficiencies and pH instabilities.

 

[coszumel]

Muddy,

Is there anything I can do regarding my soil being too hot? Should I water more often or do I have what I got? Next time if I buy ready made soil I will use Happy Frog cut with light warrior. The sickly plant seems to have been stunted by the soaking. Should I oull it or will it recover. Plant is still alive.


Cosz

 

[Muddy]

No, really nothing you can do at this point except let it grow and use the nutes in the soil. Don't over water it as that can also cause other issues. As to the sickly one, unless you need the room, I'd just leave it and see what happens. It might be stunted but still could end up producing some for you.

 

[coszumel]

Want to ride in my canoe?

Cosz

 

[Trifid]

They look lush Cosz.. Good job mate

 

[Autobot]

Cosz, those pics gave me a chubb. Keep it rocking man

 

[Muddy]

They don't look to be any worse, so that's a good thing. Except for the curling, they look very nice.