Potassium deficiency i think…need your help

[C.s]

Hi
Like the title said…
I think i have potassium deficiency…im in the 4 week of flowering….it happened with 3 plants…
What should i do?
Leach the soil and flush it?wait a few days and then water with fertiliser again?
Thanks

 

[Phytoplankton]

If it's a deficiency, unless it's caused by a lockout, flushing won't do much. What kind of light and how far above the plants is it, I ask because you've got some canoeing and curling of the leaves, which can be light or heat stress. What nutes are you using, and how often?

 

[C.s]

If it's a deficiency, unless it's caused by a lockout, flushing won't do much. What kind of light and how far above the plants is it, I ask because you've got some canoeing and curling of the leaves, which can be light or heat stress. What nutes are you using, and how often?

Thank for the answer.
How i know if its lockout?
The lights are leds…in one tent i have 5 plants,2 of them are suffering from the problem,i have there 2 lights (320 watts each)30 cm distance from plant tmp is 25-27 c,the par reading are between 600-750.in other tent i have just one plant with leds also(240 watts),distance from the plant is 55-60 cm(temp 28 c).
Im using advanced nutrients

 

[C.s]

If it's a deficiency, unless it's caused by a lockout, flushing won't do much. What kind of light and how far above the plants is it, I ask because you've got some canoeing and curling of the leaves, which can be light or heat stress. What nutes are you using, and how often?

The canoeing is just in one plant in the tent with 28 c tmp,its the only plant in the tent

 

[cage]

Looks a lot like Mg deficiency to me, maybe some potassium aswell.
Would be easier to determine if we would know better what you have been feeding.

 

[C.s]

Looks a lot like Mg deficiency to me, maybe some potassium aswell.
Would be easier to determine if we would know better what you have been feeding.

View attachment 5405325

Advanced nutrients like i said

 

[C.s]

Looks a lot like Mg deficiency to me, maybe some potassium aswell.
Would be easier to determine if we would know better what you have been feeding.

View attachment 5405325

?

 

[cage]

Advanced nutrients like i said

Well, not familiar with the brand.
They probably have plenty of products.

You have not given any info on products you use, except for the brand.
Nor the amounts you are using.

 

[C.s]

Well, not familiar with the brand.
They probably have plenty of products.

You have not given any info on products you use, except for the brand.
Nor the amounts you are using.

Im not using any other products….
Your not familiar with advanced nutrients?
Im using the amounts in the company guide charts

 

[Phytoplankton]

Thank for the answer.
How i know if its lockout?
The lights are leds…in one tent i have 5 plants,2 of them are suffering from the problem,i have there 2 lights (320 watts each)30 cm distance from plant tmp is 25-27 c,the par reading are between 600-750.in other tent i have just one plant with leds also(240 watts),distance from the plant is 55-60 cm(temp 28 c).
Im using advanced nutrients

Advanced Nutrients carries several different lines, some are organic, some are synthetic. If you're using the synthetic line, then a flush may be warranted to re-set the soil and remove any built up salts. The problem with "reading the leaves" is that a P and/or K deficiencies, looks very similar to a P/K toxicites.

 

[C.s]

Advanced Nutrients carries several different lines, some are organic, some are synthetic. If you're using the synthetic line, then a flush may be warranted to re-set the soil and remove any built up salts. The problem with "reading the leaves" is that a P and/or K deficiencies, looks very similar to a P/K toxicites.

Ok so in both scenarios flush wont do any harm no?

 

[cage]

Ok so in both scenarios flush wont do any harm no?

Yes, you could flush with mild nutrient solution.
This would flush the excesses if there is build up, but still have some nutrients in it.

But I reckon there's atleast some Mg deficiency.
What kind of water did you have?
Excess calcium could lead to Mg and K deficiency.

 

[C.s]

Yes, you could flush with mild nutrient solution.
This would flush the excesses if there is build up, but still have some nutrients in it.

But I reckon there's atleast some Mg deficiency.
What kind of water did you have?
Excess calcium could lead to Mg and K deficiency.

Ive already flushed just with balnced ph water…in 3-4 days i will water withe nutrients water again…is it ok?

 

[MissinThe90’sStrains]

Itl be ok if you can get the proper feeding ratios figured out for your medium, plant stage, and it’s feeding requirement. It’s not very big, so it doesn’t need a ton of food. Most nutrient lines like AN are overly complicated with multiple products and the charts written to feed pretty heavily. As it’s often said, “less is more”.

 

[C.s]

Itl be ok if you can get the proper feeding ratios figured out for your medium, plant stage, and it’s feeding requirement. It’s not very big, so it doesn’t need a ton of food. Most nutrient lines like AN are overly complicated with multiple products and the charts written to feed pretty heavily. As it’s often said, “less is more”.

I know because of it im feeding my plants just half the amounts from what the chart said

 

[MissinThe90’sStrains]

Do you have a meter for tds/ec ? Are you using their full line of products, or just the bare minimum 2 or 3 part solutions? Some AN lines have almost 10 bottles on the feed chart and it’s really to overfeed to the point of lockout. Also, yellowing can even be caused by poor watering practices - too often or too much. Any extra info you give will help people figure out the issue.

 

[C.s]

Do you have a meter for tds/ec ? Are you using their full line of products, or just the bare minimum 2 or 3 part solutions? Some AN lines have almost 10 bottles on the feed chart and it’s really to overfeed to the point of lockout. Also, yellowing can even be caused by poor watering practices - too often or too much. Any extra info you give will help people figure out the issue.

Im using their full line but i dose half of the charts…im doing it for 6 years…sure i have ec meter…and i think im ok with watering….