Lockout?

J

Jimi O'Connor

Active Member
So my plants leaves have been turning yellow and falling off. It's spreading. I just checked the run off. I ph the water to 6.4, when I checked the run off it was at 6.9PH. So do I put more water in at like 6.0 ph to lower it?

I checked the run off with my ec meter and it was 7.3 mS

Can someone please explain what to do ? I'm new-ish to growing still don't really know how to fix the plant

Tks ahead of time
 

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tstick

tstick

Well-Known Member
I answered this question on your other thread, but here's the deal....

I'm not a fan of pH meters unless they are the super-expensive kind. I would advise you to get some General Hydroponics pH test drops.

IF the pH is too high, then yes, you can adjust it by adjusting the pH of the water (going in) to a lower range. Once you get the reading that indicates your runoff is the proper pH range, then you can maintain that range again.

Don't expect instant results. Plants don't work on a human time scale. It may take a couple weeks for the plants to rebound.

This is assuming it IS, in fact a pH issue to begin with.
 
R

Roadblock

Active Member
You got root issues, lockout is secondary to that, fix the roots and your lockout is gone, some of the reasons could be moisture level to high or to low, airflow restricted, temperature too low, or anything that slows metabolism will have a chain reaction effect, Ive just had a similar deal and the problem was the roots were dropping to 14 celsius at night, and I was restricting feeding as I didn't want them to wet at the same time, humidity also was dry as its winter here, it all compounded to lockout and sad plants, I heated the root system to 24 celius, increased the feeds to 4 x 1 minute feeds instead of the one they were getting, within two days they are up happy and powering,
 
J

Jimi O'Connor

Active Member
Roadblock said:
You got root issues, lockout is secondary to that, fix the roots and your lockout is gone, some of the reasons could be moisture level to high or to low, airflow restricted, temperature too low, or anything that slows metabolism will have a chain reaction effect, Ive just had a similar deal and the problem was the roots were dropping to 14 celsius at night, and I was restricting feeding as I didn't want them to wet at the same time, humidity also was dry as its winter here, it all compounded to lockout and sad plants, I heated the root system to 24 celius, increased the feeds to 4 x 1 minute feeds instead of the one they were getting, within two days they are up happy and powering,
Click to expand...
It's summer here so it's not to cold. The humidity has been higher here then I'd like. It's been in the 60's. I don't get why you think it's a root problem?
 
J

Jimi O'Connor

Active Member
So my plants getting a lighter green color. It also has leaves turning yellow, and there easy to pull off. Some of the healthy still green leaf tips have a tiny bit of burn on them. That's why I'm wondering if my plant has lockout or if it's running out of food... or something else?

My plants in a 5 gal cloth pot filled with a half n half mix of sohum living soil and foxfarm. I ran out of soil so I had to mix this way.

I water once or twice a week. The second watering of the week I add Recharge. I PH the water 6.1-6.4. The second watering (with Recharge) I generally keep the PH on the lower side because recharge raises PH level.

I have a light meter. So I follow the DLI and PAR as far as lightning goes.

The temperature and humidity on average 81 degrees, RH 58%-60%

The last few weeks the humidity has been higher than normal. The humidity has been in the 60's the last few days
 

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DeadHeadX

DeadHeadX

Well-Known Member
Lots of possibilities, and people who know more than I do may weigh in.

Nitrogen toxicity will often be accompanied with dark green leaves, which makes me lean away from that diagnosis. They are likely hungry and you should be adding a fertilizer for flowering plants at this point, as your soil mix will likely not sustain the high demands of flowering cannabis. Are you using any added nutrients? You should. Maybe look for some Dr. Earth Flower Girl. Add a quarter cup into your top layer every two weeks or so during flowering (gauge plant response to know who much.) Might need something faster acting atm.

Are these autos or photos? If autos, how much light are your running? The curled down tips can be a reaction to too much light.

Running 81f with 55% humidity mean a pretty high VPD. Slightly lower temp or slightly higher humidity will help fix this. You want to keep humidity lower as the flowers start to fill out of course.

I wouldn’t bother with ph when growing in buffered soil like you are (unless things are really far off). If you make the ph too low, this could cause lock out, which may also be happening here.

Just some thoughts. Good luck
 
J

Jimi O'Connor

Active Member
DeadHeadX said:
Lots of possibilities, and people who know more than I do may weigh in.

Nitrogen toxicity will often be accompanied with dark green leaves, which makes me lean away from that diagnosis. They are likely hungry and you should be adding a fertilizer for flowering plants at this point, as your soil mix will likely not sustain the high demands of flowering cannabis. Are you using any added nutrients? You should. Maybe look for some Dr. Earth Flower Girl. Add a quarter cup into your top layer every two weeks or so during flowering (gauge plant response to know who much.) Might need something faster acting atm.

Are these autos or photos? If autos, how much light are your running? The curled down tips can be a reaction to too much light.

Running 81f with 55% humidity mean a pretty high VPD. Slightly lower temp or slightly higher humidity will help fix this. You want to keep humidity lower as the flowers start to fill out of course.

I wouldn’t bother with ph when growing in buffered soil like you are (unless things are really far off). If you make the ph too low, this could cause lock out, which may also be happening here.

Just some thoughts. Good luck
Click to expand...
I have some Gaia green power bloom for when there in flower. I'm scared to add it I don't to make there to much food or burn the leafs I got left.

I'm not really sure how to use a EC meter. But I got one and I tested the run off and it was @ 7.3 mS. Does this help with telling if there's enough food in the soil still?
 
J

Jimi O'Connor

Active Member
DeadHeadX said:
Lots of possibilities, and people who know more than I do may weigh in.

Nitrogen toxicity will often be accompanied with dark green leaves, which makes me lean away from that diagnosis. They are likely hungry and you should be adding a fertilizer for flowering plants at this point, as your soil mix will likely not sustain the high demands of flowering cannabis. Are you using any added nutrients? You should. Maybe look for some Dr. Earth Flower Girl. Add a quarter cup into your top layer every two weeks or so during flowering (gauge plant response to know who much.) Might need something faster acting atm.

Are these autos or photos? If autos, how much light are your running? The curled down tips can be a reaction to too much light.

Running 81f with 55% humidity mean a pretty high VPD. Slightly lower temp or slightly higher humidity will help fix this. You want to keep humidity lower as the flowers start to fill out of course.

I wouldn’t bother with ph when growing in buffered soil like you are (unless things are really far off). If you make the ph too low, this could cause lock out, which may also be happening here.

Just some thoughts. Good luck
Click to expand...
The soil I used was half fox farm and half sohum living soil. So the sohum is a "just add water" soil will all the food in it already. The fox farm has like a cpl weeks worth of food. So do you think I should add the Gaia green power bloom?

I added a Pic of the plant yesterday, the grow light wad off when I took the Picture. I'll add one with the led light on today

Tks ahead of time
 

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DeadHeadX

DeadHeadX

Well-Known Member
Jimi O'Connor said:
The soil I used was half fox farm and half sohum living soil. So the sohum is a "just add water" soil will all the food in it already. The fox farm has like a cpl weeks worth of food. So do you think I should add the Gaia green power bloom?

I added a Pic of the plant yesterday, the grow light wad off when I took the Picture. I'll add one with the led light on today

Tks ahead of time
Click to expand...
I’m not familiar with Sohum, but I expect most cannabis plants will have used the available nutes in a five gallon container within the first few weeks, after which you’re well served to add more. That’s certainly true in my experience using fox farm soils. Lots of people love the Gaia stuff. I would be using their bloom fertilizer at this point. .
 
J

Jimi O'Connor

Active Member
DeadHeadX said:
I’m not familiar with Sohum, but I expect most cannabis plants will have used the available nutes in a five gallon container within the first few weeks, after which you’re well served to add more. That’s certainly true in my experience using fox farm soils. Lots of people love the Gaia stuff. I would be using their bloom fertilizer at this point. .
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I waterd the plant today. I forgot I had a bottle of fox farm big bloom. I'm pretty sure it's an instant kind of food, it doesn't take 2 weeks to be available to the plant like Gaia green. Let's hope it works.

I also checked the soil ph with this 3way meter that you stick in the dirt. It said it was between 6 and 7. Idk how accurate they are though
 

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R

Roadblock

Active Member
Jimi O'Connor said:
It's summer here so it's not to cold. The humidity has been higher here then I'd like. It's been in the 60's. I don't get why you think it's a root problem?
Click to expand...
Because things like this usually start from issues with the roots affecting metabolism, and cold is only one thing that can set it off, overwater underwatering and or not enough air will cause it also, too much heat can as well, anything that alters with transpiration will show up as lockout if it continues over time, people always look at additives when today just about any reputable feed is balanced and will grow great plants its not lacking there its lacking in being taken up by the plant, but if the plant is under stress somewhere it will start to go into lockout because its not transpiring at the rate it needs to be in balance, if they are looking sad they are not in turgor if they not in turgor its generally a fluid balance thing leading to issue with the way the roots are working, its all starts at the root system.
 
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