Lockout or underfeeding?

O

oill

Well-Known Member
Hydro dtw in rockwool
In week 6 veg
Ph 6.0
Ec 1.5
Atami bcuzz a b
And some silic boost

Plants are yellowing a d some brown spots.

Please help, I never know if this is over or under feeding
 

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put an actual picture of the plant, also ph 6 is low in my opinion try to keep it more up 6.4 - 6.8. if pH lowers into acidity to less than 6 the roots are not able to access phosphoric acid, calcium, and magnesium because they lose their solubility.
 
paz87 said:
put an actual picture of the plant, also ph 6 is low in my opinion try to keep it more up 6.4 - 6.8. if pH lowers into acidity to less than 6 the roots are not able to access phosphoric acid, calcium, and magnesium because they lose their solubility.
Click to expand...

6.8 in hydro?
 

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paz87 said:
put an actual picture of the plant, also ph 6 is low in my opinion try to keep it more up 6.4 - 6.8. if pH lowers into acidity to less than 6 the roots are not able to access phosphoric acid, calcium, and magnesium because they lose their solubility.
Click to expand...
He's growing in rockwool, not soil! Don't mislead him with that advice! Ph is perfect at 6.0! Also, plants don't take up phosphoric acid! Maybe read some more before offering blind/wrong advice lol.
 
oill said:
Hydro dtw in rockwool
In week 6 veg
Ph 6.0
Ec 1.5
Atami bcuzz a b
And some silic boost

Plants are yellowing a d some brown spots.

Please help, I never know if this is over or under feeding
Click to expand...

what are your roots looking like and the water temp.

Plants are hell of mag deficient. lower ec to 1.3 pik off all the really yellow leaves. add hydroguard what light
 
Bernie420 said:
what are your roots looking like and the water temp.

Plants are hell of mag deficient. lower ec to 1.3 pik off all the really yellow leaves. add hydroguard what light
Click to expand...
Vero 29 3000k and some hlg 288 at 3k

Room temp is about 27c to 32c.

Also... I doudt its root rot. I am using rockwool 1cm chunks.

I water for 30 seco ds 2 x a day and get run off. I think it's probably overfeeding.

I have taken ec to 1.0 and added calmag solution. Recalibrated ph pen which was reading 7.3 in 7. So maybe I was lowering ph too much. We'll see.
 
Last edited:
Blitz35 said:
He's growing in rockwool, not soil! Don't mislead him with that advice! Ph is perfect at 6.0! Also, plants don't take up phosphoric acid! Maybe read some more before offering blind/wrong advice lol.
Click to expand...
I knew when he said 6.8 we were speaking a different language
 
oill said:
Vero 29 3000k and some hlg 288 at 3k

Room temp is about 27c to 32c.

Also... I doudt its root rot. I am using rockwool 1cm chunks.

I water for 30 seco ds 2 x a day and get run off. I think it's probably overfeeding.

I have taken ec to 1.0 and added calmag solution. Recalibrated ph pen which was reading 7.3 in 7. So maybe I was lowering ph too much. We'll see.
Click to expand...

Yeah I think your overfeeding at 1.5 ec in veg.
However, what distance are the lights from the plants? How much wattage over how big a space?
 
oill said:
Looking at this didnt really help. I think I have manganese def due to overfeeding.
Click to expand...
I don’t understand how that didn’t help you. But I will say this. Go back and check the charts again because there was at least one condition that would cause manganese lockout.

I don’t know pictures of the different conditions both excess and deficient with pictures AND descriptions. It doesn’t get much better than that other than having a botanist or experienced grower in your ops to actually tell you what’s wrong.
 
oill said:
Vero 29 3000k and some hlg 288 at 3k

Room temp is about 27c to 32c.

Also... I doudt its root rot. I am using rockwool 1cm chunks.

I water for 30 seco ds 2 x a day and get run off. I think it's probably overfeeding.

I have taken ec to 1.0 and added calmag solution. Recalibrated ph pen which was reading 7.3 in 7. So maybe I was lowering ph too much. We'll see.
Click to expand...

whats the ph of the water
 
oill said:
Vero 29 3000k and some hlg 288 at 3k

Room temp is about 27c to 32c.

Also... I doudt its root rot. I am using rockwool 1cm chunks.

I water for 30 seco ds 2 x a day and get run off. I think it's probably overfeeding.

I have taken ec to 1.0 and added calmag solution. Recalibrated ph pen which was reading 7.3 in 7. So maybe I was lowering ph too much. We'll see.
Click to expand...

did you look
 
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