nitrogen toxicity

ddogz

ddogz

Member
So I have nitrogen toxicity this is the second time now according to the grow schedule I should be feeding 2.5ml at this point of a and b I'm like half way through week 4 from 12/12 the most I have gave is 2ml a liter and I slowly increased to that after the last one I have been watering with 3 and a half liters then 4 and a half the next watering witch is usually 2nd to 3rd day after being watered the plants are in 20l pots should I just feed them a lot less or is it something to do with the npk ratio
The npk for my a and b are the same it is 4.5/4.1/3 any feedback would be much appreciated thanks
 
ddogz

ddogz

Member
Can't really get a pic right now the lights are on and I don't really want to take them out of the tent right now and I realised using flash doesn't show the true colours anyway I took them out a few days ago to trim the bottom and noticed they was dark green I don't think it's too bad they are still budding but a few of the sugar leaves have a slight twist and noticed some fan leaves have a slight cup there's a few pics from last week on this post http://rollitup.org/t/how-do-these-look.933470/
 
ddogz

ddogz

Member
whitebb2727 said:
Looks fine to me.
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You can't really see the true colour in those pics I have had high humidity sometimes at 75 and sometimes its at 55 and temps at about 81 night time about 60 not sure if that would make sugar leaves twist I don't think they look too bad but for future reference is that npk ok should I just tone down how much I add per lt if they look dark green I just wasn't sure if they have added too much nitrogen for flower I was thinking to lower the a and b and use a bit of pk booster to up the PK I'm not very good with math so I'm just guessing right now with how much pk to add to keep the ratios right hope that makes sense
 
whitebb2727

whitebb2727

Well-Known Member
Darker than this?
Screenshot_2017-01-17-15-31-28.png
That's late flower and its pretty dark. About as hard as I wanted to push it.

I prefer pretty close to even npk.
 
ddogz

ddogz

Member
whitebb2727 said:
Darker than this?
View attachment 3887524
That's late flower and its pretty dark. About as hard as I wanted to push it.

I prefer pretty close to even npk.
Click to expand...
They don't look that dark just took some pics but they don't look like what I see how did you take a pic of yours so it shows true colours I just did it under a energy saving fluorescent bulb with flash off but seeing yours maybe it's not bad will the sugar leaves curl with heat also did it take a while to start budding with that much nitrogen I will upload the pics tomoz won't let me do it on my phone
 
whitebb2727

whitebb2727

Well-Known Member
ddogz said:
They don't look that dark just took some pics but they don't look like what I see how did you take a pic of yours so it shows true colours I just did it under a energy saving fluorescent bulb with flash off but seeing yours maybe it's not bad will the sugar leaves curl with heat also did it take a while to start budding with that much nitrogen I will upload the pics tomoz won't let me do it on my phone
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I used the flash. I grow under t5. I may have had some of.the bulbs on.

Camera makes a difference. I used a higher end camera.
 
ddogz

ddogz

Member
whitebb2727 said:
I used the flash. I grow under t5. I may have had some of.the bulbs on.

Camera makes a difference. I used a higher end camera.
Click to expand...
The pics I posted in that other thread I made which I've linked was taken with flash on phone only maybe I should try to move it out of direct light from the mini fluorescent bulb in the ceiling and use flash next time but maybe its just the cam on my phone i have a Samsung s7 edge when i next go grow shop I will be buying some of them lumitek glasses apparently you can take a pic with them in front of lens when light is on
 
whitebb2727

whitebb2727

Well-Known Member
ddogz said:
The pics I posted in that other thread I made which I've linked was taken with flash on phone only maybe I should try to move it out of direct light from the mini fluorescent bulb in the ceiling and use flash next time but maybe its just the cam on my phone i have a Samsung s7 edge when i next go grow shop I will be buying some of them lumitek glasses apparently you can take a pic with them in front of lens when light is on
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I wouldn't do anything different as of now. Unless you are seeing burning or they look almost black.
 
ddogz

ddogz

Member
whitebb2727 said:
I wouldn't do anything different as of now. Unless you are seeing burning or they look almost black.
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No nothing like that all I've done is halved the a and b for this watering think I might be making a big deal out of nothing but I've got 5 plants from seed this is basically my 3rd grow only ever learned from on the Internet how to grow and I've only started from seed once and that was only 2 it's been hard can't wait to pic one so I only have clones of a single plant thanks for the input mate
 
ddogz

ddogz

Member
Cx2H said:
Twisting could be micronutrient def.
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Bottle of a and b says
Nitrogen 4.5%
Phosphorus 4.1
Potassium 3
Calcium 6.6
Magnesium 3
Iron 0.04
Manganese 0.01
Zinc 0.007
Boron 0.005

And I'm positive my ph is always around 5.7 to 6 unless I could lock them out by putting too much pk 13/14 in been using that at 0.7 ml a lt
 
Cx2H

Cx2H

Well-Known Member
ddogz said:
Bottle of a and b says
Nitrogen 4.5%
Phosphorus 4.1
Potassium 3
Calcium 6.6
Magnesium 3
Iron 0.04
Manganese 0.01
Zinc 0.007
Boron 0.005

And I'm positive my ph is always around 5.7 to 6 unless I could lock them out by putting too much pk 13/14 in been using that at 0.7 ml a lt
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How many times/ long you have been adding pk 13/14?
 
Cx2H

Cx2H

Well-Known Member
You are suppose to use it in a 1 week periods at day 15, so like 2 soil feed maybe; daily if a drip or Dwc but not longer. Then hit it again around week 6 for another week. #Random.

Leaf twisting is like I said up there micros leaning on boron and pH flux.

No pix makes this speculative at best.

Could be just fine as well
 
ddogz

ddogz

Member
Cx2H said:
You are suppose to use it in a 1 week periods at day 15, so like 2 soil feed maybe; daily if a drip or Dwc but not longer. Then hit it again around week 6 for another week. #Random.

Leaf twisting is like I said up there micros leaning on boron and pH flux.

No pix makes this speculative at best.

Could be just fine as well
Click to expand...
 

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Cx2H

Cx2H

Well-Known Member
Mmm. They look fine. Lay off the 13/14 and N. Easy on the water. Pk bump at day 15-21 then again day 36-42. Cannas schedule is late. Try seaweed/Kelp for natural PGR's and micros.
 
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