Help with Nute Deficiencies in Late Veg

[M397]

Hoping you can possibly help with my ongoing issue

with my first Grow

Some basic info below:

Media - soil FF Ocean forest

2x4 & 4x4 indoor grow tent (6 plants total)

250 watt Viperspectra 1500 Pro LED & Viparspectra KS5000

Fabric pots - 5 gal

Originally spring water for first 8 weeks, changed

this week to RO water.

Indica plants

Fox Farms Trio nutrients, Cal Mag, recharge

Carbon exhaust and clip on fans

Plants in 8th week of veg

Watering/feed at about 1.25 gal per plant

Ran 6 weeks veg without flush and PPMs in runoff got as high as 1800-2000 ppM, runoff ph around 6.0- 6.25… Leafs started to yellow with green veins and then brown spots.

After flush with sledgehammer, ppM down to 550- 700. Did a feeding at next watering and PPMs up to 700-900 runoff after feeding. Did a watering with calmag and fish shit 3 days later and PPMs at 1000-1200. PPMs going in are about 600-700.

Plant do not seem to want to move from lime green to darker green and PPMs continue to rise concerning me that they are not up taking nutes. I talked to Fox Farm and they said don’t go by runoff, do a slurry PH which I did and came out with 6.4 ph. I have been wanting to move these to flower but concerned that they will continue to degrade.

Interesting to note that internal and lower leaves are nice dark green.

A couple of questions:

1. Do you think the plants are stilled locked out and require another flush? Is only been 2 weeks since last flush.
2. Am I too concerned with PPMs and not feeding enough so perhaps that is why they will not recover. When feeding, only 1/2 Trio recommended.
3. Should I top dress with some dolomite lime to increase the soil ph ?
4. Could high humidity in late veg cause some of this problem 60-75%
5. I have been delaying flipping to flower for 2+ weeks and concerned that the what I hope to see in improvement may not ever get there…. Do I flip or wait more?

Any other suggestions would be greatly appreciated.

 

[NickSkyland]

Stop watering and flushing it. Dry that soil out in sun today if possible. Mix 1 tablespoon of Epsom salt in 1 gallon of water. Spray it on leaves for magnesium.

 

[M397]

Stop watering and flushing it. Dry that soil out in sun today if possible. Mix 1 tablespoon of Epsom salt in 1 gallon of water. Spray it on leaves for magnesium.

I just flushed 1 1/2 weeks ago, and only water every 4 days when pot is very light. Watered pot weighs 19 lbs, watering when pot is about 10 lbs or less.

Does it need another flushing and to what PPMs should I flush to? When checking runoff for PPMs I am watering the 1.25 gallons, and then whatever water ends up in the drip pan is what I check for runoff ph and PPMs, I am assuming this is correct method, and trays are always cleaned out before returning to under the plant.

 

[NickSkyland]

Just because soil is dry, doesn't mean it needs water. Also, it takes a week or 2 to recover from a "hiccup". Only deficiency I see is magnesium, which it can take through leaves. Drooping like that screams overwatering to me. Not enough oxygen for roots. Leaves are heavy. Magnesium sulfate (Epsom salt) should turn that lime to dark green.

 

[NickSkyland]

That foliage is rich. It has plenty of nutes and water. Making them heavy, and sag. Needs light, air, and magnesium salt.

 

[M397]

That foliage is rich. It has plenty of nutes and water. Making them heavy, and sag. Needs light, air, and magnesium salt.

The photo of the plant shown was early this morning and the light just started so perhaps the droop is due to that, typically it is how it is shown in the picture below. I have been somewhat “light” on the lights as I had a problem with light burn earlier in the grow so it made me uneasy. I typically run about 4 - 6 inches over the spec from the light manufacture for the light stage

 

[NickSkyland]

Ah yeah, that picture tells a different story. That's not overwatered then.

Here's a helpful link that gets tossed around here alot for diagnosing micro deficiencies

Cannabis Leaf Symptoms Quick Guide With Pics | DRCANNABIS.IO

Use cannabis leaf symptoms pictures to quickly diagnose your marijuana plants. Find the pictures that resemble your plants and learn how to fix the problem!

drcannabis.io

 

[M397]

Ah yeah, that picture tells a different story. That's not overwatered then.

Here's a helpful link that gets tossed around here alot for diagnosing micro deficiencies

https://drcannabis.io/symptoms[/

http://Do you still recommend a ful...was thinking of going 5 gals flush for each??

 

[GNick55]

this is light stress..

 

[GNick55]

http://Do you still recommend a ful...was thinking of going 5 gals flush for each??

stop flushing

 

[Captspaulding]

Flushing is bad during growth in soil.

 

[Captspaulding]

stop flushing

Jinx!

 

[r595r]

Hoping you can possibly help with my ongoing issue

with my first Grow

Some basic info below:

Media - soil FF Ocean forest

2x4 & 4x4 indoor grow tent (6 plants total)

250 watt Viperspectra 1500 Pro LED & Viparspectra KS5000

Fabric pots - 5 gal

Originally spring water for first 8 weeks, changed

this week to RO water.

Indica plants

Fox Farms Trio nutrients, Cal Mag, recharge

Carbon exhaust and clip on fans

Plants in 8th week of veg

Watering/feed at about 1.25 gal per plant

Ran 6 weeks veg without flush and PPMs in runoff got as high as 1800-2000 ppM, runoff ph around 6.0- 6.25… Leafs started to yellow with green veins and then brown spots.

After flush with sledgehammer, ppM down to 550- 700. Did a feeding at next watering and PPMs up to 700-900 runoff after feeding. Did a watering with calmag and fish shit 3 days later and PPMs at 1000-1200. PPMs going in are about 600-700.

Plant do not seem to want to move from lime green to darker green and PPMs continue to rise concerning me that they are not up taking nutes. I talked to Fox Farm and they said don’t go by runoff, do a slurry PH which I did and came out with 6.4 ph. I have been wanting to move these to flower but concerned that they will continue to degrade.

Interesting to note that internal and lower leaves are nice dark green.

A couple of questions:

1. Do you think the plants are stilled locked out and require another flush? Is only been 2 weeks since last flush.
2. Am I too concerned with PPMs and not feeding enough so perhaps that is why they will not recover. When feeding, only 1/2 Trio recommended.
3. Should I top dress with some dolomite lime to increase the soil ph ?
4. Could high humidity in late veg cause some of this problem 60-75%
5. I have been delaying flipping to flower for 2+ weeks and concerned that the what I hope to see in improvement may not ever get there…. Do I flip or wait more?

Any other suggestions would be greatly appreciated.

View attachment 2047662

View attachment 2047663

Dawn and a veggy oil and water
Mix...spray under leaves and in dirt.
It works every time for me

 

[GNick55]

Dawn and a veggy oil and water
Mix...spray under leaves and in dirt.
It works every time for me

hahahahaha

 

[Captspaulding]

hahahahaha

Friggin fox farm feeding charts……pour that sledge hammer down the drain…..that stuff causes so many issues.

 

[M397]

Now I’m totally confused??

No to flush? Now you think it is light stress ? Help….

 

[M397]

stop flushing

Can you confirm if you are stating I should or should not flush now, and what your reference is to light stress?

 

[JohnBlazr]

I would listen to @GNick55 , dude is usually always on point

 

[JohnBlazr]

I’m a noob but when I have my light on too higher they look exactly like yours did. I was about to say something but again, I’m new.

 

[JohnBlazr]

Back the light up, continue with feeding, stop flushing, let medium dry out