PH, Water or Nutrient Issue

  • Thread starter Squatch61
  • Start date
  • Tagged users None
Squatch61

Squatch61

9
3
First grow went fine so I am a loss for words on this 2nd grow. I use soil and purely organic nutrients however this grow everything is going south and not sure what's going on. I use woven smart pots so I'm thinking they are under watered however someone else thinks they are over watered. Photo's are of different plants with each one having different issues from yellowing and dying leaves to yellowing and brownish spotting. Your help and thoughts are appreciated.

1. Well Water PH 6.3
2. Organic soil
3. Humidity 60%
4.Temp 75 F
5.Currently in vegetative state
 
Yellow 2
Yellowing 1
Yellowing 3
Yellowing
Aqua Man

Aqua Man

Staff
Supporter
22,188
638
First grow went fine so I am a loss for words on this 2nd grow. I use soil and purely organic nutrients however this grow everything is going south and not sure what's going on. I use woven smart pots so I'm thinking they are under watered however someone else thinks they are over watered. Photo's are of different plants with each one having different issues from yellowing and dying leaves to yellowing and brownish spotting. Your help and thoughts are appreciated.

1. Well Water PH 6.3
2. Organic soil
3. Humidity 60%
4.Temp 75 F
5.Currently in vegetative state
Back the light way way off until you get this sorted.

Exactly what organic soil are you using?

Any nutrients your adding?

How much and how often are you watering?

Information on the grow space?
 
Squatch61

Squatch61

9
3
Back the light way way off until you get this sorted.

Exactly what organic soil are you using?

Any nutrients your adding?

How much and how often are you watering?

Information on the grow space?
Aqua Man thanks for the review, I am using a homemade soil mix I saw a professor describe on YouTube for growing cannabis. It's peat moss, perllite, blood meal, gypsum, worm castings, dolomite lime, this mixture worked just fine first grow. Only nutrients that do get added is the occasional worm casting tea and a little molasses. The plants are watered morning and evening for five minutes on a gravity fed drip system. Grow space is 8'Wx12'Lx8'H', completely sealed with Mylar, 4" Intake and 6" exhaust fans, portable ac unit stays on 75 degrees, dehumidifier stays on 65%, CO2 stays around 690 ppm. Currently have eight ladies in play however they are in dire need of help. I have two White rose 6000w LED lights and one Whiter rose 4000w LED all lights are at least 2 feet from the top of the plants. Last night I picked up one of the pots and it was really light so I'm thinking under watered my growing partner disagrees and thinks they are over watered. I'm thinking PH issue because the leaves that are turning yellow are mid range and lower except one plant who has all yellow leaves and I did not get a picture of this one but can if needed.
 
Aqua Man

Aqua Man

Staff
Supporter
22,188
638
Aqua Man thanks for the review, I am using a homemade soil mix I saw a professor describe on YouTube for growing cannabis. It's peat moss, perllite, blood meal, gypsum, worm castings, dolomite lime, this mixture worked just fine first grow. Only nutrients that do get added is the occasional worm casting tea and a little molasses. The plants are watered morning and evening for five minutes on a gravity fed drip system. Grow space is 8'Wx12'Lx8'H', completely sealed with Mylar, 4" Intake and 6" exhaust fans, portable ac unit stays on 75 degrees, dehumidifier stays on 65%, CO2 stays around 690 ppm. Currently have eight ladies in play however they are in dire need of help. I have two White rose 6000w LED lights and one Whiter rose 4000w LED all lights are at least 2 feet from the top of the plants. Last night I picked up one of the pots and it was really light so I'm thinking under watered my growing partner disagrees and thinks they are over watered. I'm thinking PH issue because the leaves that are turning yellow are mid range and lower except one plant who has all yellow leaves and I did not get a picture of this one but can if needed.
I'd say they are starving partially due to a lack of microbes in the soil to process nutrients into an available form, possible the soil density? And likely watering practices also.

I'm not an organic grower so I'm limited to help ya here.

Did you do a slurry test on your soil to ensure correct PH range?

How much and how often do you water? You should be saturating the soil then giving a dry cycle. This won't work if the soil is to dense and no matter what you do there will be issues.

If it were me I'd give it a shot of a balanced synthetic nutrient. And back the light way off because light drives the plant so if it's not getting enough nutrients it will only make things worse faster.

Hopefully some organic guys show up to help ya.

@GNick55 @ComfortablyNumb

Got some ideas here?
 
lvstealth

lvstealth

Supporter
1,507
263
did you let the heat get too high for a few hours?

you say you water morning and night with a drip system, you might want to revisit that, but i dont think that is the issue.

agreed, raise or dim light till they look better.

i do need to see a pic of the whole plant. just a few leaves dont show much.
 
Squatch61

Squatch61

9
3
I'd say they are starving partially due to a lack of microbes in the soil to process nutrients into an available form, possible the soil density? And likely watering practices also.

I'm not an organic grower so I'm limited to help ya here.

Did you do a slurry test on your soil to ensure correct PH range?

How much and how often do you water? You should be saturating the soil then giving a dry cycle. This won't work if the soil is to dense and no matter what you do there will be issues.

If it were me I'd give it a shot of a balanced synthetic nutrient. And back the light way off because light drives the plant so if it's not getting enough nutrients it will only make things worse faster.

Hopefully some organic guys show up to help ya.

@GNick55 @ComfortablyNumb

Got some ideas here?
I just purchased a good soil PH meter will be checking this issue this weekend. I agree with your watering recommendation I just need to convince someone else.
 
Aqua Man

Aqua Man

Staff
Supporter
22,188
638
I just purchased a good soil PH meter will be checking this issue this weekend. I agree with your watering recommendation I just need to convince someone else.
Have a read here and let your someone else have a read too... maybe that will help? Idk


@ComfortablyNumb recently did a great thread on a simple way to monitor and know when to water here also here.

 

Similar threads

professorchaos
Replies
21
Views
508
professorchaos
professorchaos
S
Replies
10
Views
437
sicoroot
S
Gboi420
Replies
22
Views
588
ComfortablyNumb
ComfortablyNumb
C
Replies
40
Views
898
Cuttybruh
C
Top Bottom