Professional advice to fix my plant issue

K

Knives8927

New Member
Hello everyone,
I'm having an issue with one of my Tangerine dream auto plants so this is the environment:
Pot size 5 gal
Soil pH between 6 and 7
400 wat led
using advanced nutrients
Watering with 9 gal of 6.5 pH water I flushed my plant but that didn't fix the issue besides when ever I test the water coming down from the plant what is weird the more I flush with 6 or 6.5 pH water the water coming down pH gets weirdly higher like from 6.9 to 7.4
I may be forgetting some details just ask me in that case and thank you in advance.
 

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hotrodharley

hotrodharley

Well-Known Member
Knives8927 said:
Hello everyone,
I'm having an issue with one of my Tangerine dream auto plants so this is the environment:
Pot size 5 gal
Soil pH between 6 and 7
400 wat led
using advanced nutrients
Watering with 9 gal of 6.5 pH water I flushed my plant but that didn't fix the issue besides when ever I test the water coming down from the plant what is weird the more I flush with 6 or 6.5 pH water the water coming down pH gets weirdly higher like from 6.9 to 7.4
I may be forgetting some details just ask me in that case and thank you in advance.
Click to expand...
How close is this light? Forget pH testing runoff. Are you growing in soil?
 
Palmerrdgrower

Palmerrdgrower

Well-Known Member
Knives8927 said:
Hello everyone,
I'm having an issue with one of my Tangerine dream auto plants so this is the environment:
Pot size 5 gal
Soil pH between 6 and 7
400 wat led
using advanced nutrients
Watering with 9 gal of 6.5 pH water I flushed my plant but that didn't fix the issue besides when ever I test the water coming down from the plant what is weird the more I flush with 6 or 6.5 pH water the water coming down pH gets weirdly higher like from 6.9 to 7.4
I may be forgetting some details just ask me in that case and thank you in advance.
Click to expand...
Are you phing the water and using advanced nutrients
 
Renfro

Renfro

Well-Known Member
What PPM are you feeding at?

Honestly this has me a bit stumped. Never seen this before.
 
K

Knives8927

New Member
Renfro said:
What PPM are you feeding at?

Honestly this has me a bit stumped. Never seen this before.
Click to expand...
Hi Renfro,
I'm feeding with 750 ppm everytime, without nutrients it's 150 ppm to give you all the details I noticed this issue in the early stages 3 weeks ago I have been trying to fix the pH because after a research I understood that it's an iron deficiency so I have flushed with 6.5 pH water it changed nothing and it got worse so I flushed again and I watered with nutrients but it didn't make it better too, now I'm lost kowing that I have a second plant with the same feeding schedule and everything and she's doing good.
I know that at this stage I can't save her anymore but I want to understand what went wrong to learn.
 
Renfro

Renfro

Well-Known Member
750 PPM is light by my standards, especially with 150 ppm of overhead in the water. Thats basically 600 PPM of goodies for the plant to eat. I would say bring that up to 1000. It is likely that your soil nutrients are becoming exhausted. I am not familiar with that particular media but what I found says its NPK is 12-14-24, low ppm for starting plants. Chances are the plants just need more feed now that the soil is lacking in certain macro nutrients.
 
K

Knives8927

New Member
Renfro said:
750 PPM is light by my standards, especially with 150 ppm of overhead in the water. Thats basically 600 PPM of goodies for the plant to eat. I would say bring that up to 1000. It is likely that your soil nutrients are becoming exhausted. I am not familiar with that particular media but what I found says its NPK is 12-14-24, low ppm for starting plants. Chances are the plants just need more feed now that the soil is lacking in certain macro nutrients.
Click to expand...
Maybe you are right but since it's my first Grow I prefered to go light on nutrients to avoid issues from the beginning and even though I did that I noticed some yellowing on the tips of the leaves so I didn't add more nuts
 
K

Knives8927

New Member
Capn-Crunch said:
Check your runoff ppm and if it's significantly higher than what you are putting into it you may have a lockout issue. That would also play into the high ph reading in the runoff as well.

The above link describes it pretty well
Click to expand...
Hi Capn-Crunch,
The ppm of the runoff is not higher than the ppm of my watering it's less around 300 and 400 that's why I've been trying to fix the pH of the soil but I couldn't :/
 
K

Knives8927

New Member
Capn-Crunch said:
I downloaded your photo and zoomed in on it to see better. If the issue has shown up at once all over the plant then it must be an immobile nutrient deficiency.
Click to expand...
The issue has 3 weeks and started from the bottom, the leaves get's dry and fall down until it got that color on the top and the plant was droopy specially before 5 hours from lights off, unfortunately I didn't take pics of that stage I didn't expect it to get this bad, that plant was the promising one with good vegetation growth comparing with my second Wich is a tangerine dream auto too
 
R

redivider

Well-Known Member
Capn-Crunch said:
I downloaded your photo and zoomed in on it to see better. If the issue has shown up at once all over the plant then it must be an immobile nutrient deficiency.
Click to expand...
The other way around.









Montana State Unversity Published this a while back - while it's more directed towards wheat and corn growing - a lot of plants show very similar symptoms and could be applied to cannabis.

Name of the Publication: Plant Nutrient Functions and Deficiency and Toxicity Symptoms

by Ann McCauley, Soil Scientist;
Clain Jones, Extension Soil Fertility Specialist; and
Jeff Jacobsen, College of Agriculture Dean

Not sure the original publication date - but it was re-printed in 2011 - left on a server somewhere and I found it.
 
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