Flowering yellowing from center

Max888888100

Max888888100

Member
AD52B4E0-84D1-46DD-9F85-7BD1DE2365CB.jpeg AFF30518-0B8C-4F5C-BFEE-B0A61CA7D8FE.jpeg The center of the autoflower plant is yellowing and dieing, is that normal or nute burning? Nitrogen toxic? Not too sure, only the first grow in coco ever :/
 
Tom Tucker 313

Tom Tucker 313

Active Member
PH should be between 6.4 and 7.0

Temps should 67F and 74F

Humidity should be high at night 60% and low during the day 40%

You should be useing high phosphorus with little nitrogen like a 1-10-5 plus cal mag.
 
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Blitz35

Well-Known Member
Tom Tucker 313 said:
PH should be between 6.4 and 7.0

Temps should 67F and 74F

Humidity should be high at night 60% and low during the day 40%

You should be useing high phosphorus with little nitrogen like a 1-10-5 plus cal mag.
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No offense, but that's terrible advice! You have absolutely no idea what he's been feeding, yet you determine its a deficiency not a toxicity? How can you tell an excess of something isn't locking something else out, especially when you have no idea what he's been giving! Also, you keep your ph at 6.4-7, especially in coco, and you can kiss the plants goodbye!!! lol a 1-10-5 is not needed at all, from the hard-to-see images, there is nothing there that shows phosphorus deficiency at all! You should not be giving more phosphorus than potassium ever, unless there is a clear shortage.
 
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Blitz35

Well-Known Member
Max888888100 said:
View attachment 4075855 View attachment 4075854 The center of the autoflower plant is yellowing and dieing, is that normal or nute burning? Nitrogen toxic? Not too sure, only the first grow in coco ever :/
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Try to take a couple clearer pictures, from a bit farther back as well, it's hard to see the entire plant like that, and you have to add in what you've been feeding, watering, frequency, do you monitor ph and/or ppm's? What kind of light are you using? your temp/humidity? When did problems first appear? What week are you in?
 
Max888888100

Max888888100

Member
Hey guys! So im on a mix solution that i kinda made along the way that was working. The girls are in coco on Canna nuttrients.

Per 1 Litre of 120ppm tap water:
3ml canna A+B
1ml cal-mag
1ml Cannazym
1ml Canna Boost

Ph’d to 6-6.3 ppm is 1,000

So far it was working great, should i be adding the Canna PK 13/14?

The girls are 1 month into flower, illl snaps some pictures tonight for you guys
 
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Blitz35

Well-Known Member
You're running an auto, so there is no such thing as '1 month' into flower..an auto only flowers for about 4 weeks..starts in week 5 and most finish by week 8-10. It seems you are i guess in week 8-9 then? Which means the plant is near the end, there is no point in dumping nutes in now as it won't have time to do anything with it that late in the game. Better pics can help understand the situation, i don't see any buds on the flower, the top of the plant is hidden. Again, that late in the grow, not much you can do, part of it is natural.
 
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Blitz35

Well-Known Member
The pics are clearer, however, im sure you can see that with led lights on, it's impossible to see any yellowing. From those pics, plants look perfect! I'd say the yellowing in the first pics was from those leaves not getting light in the thicker canopy. Unless there is yellowing the lights are hiding:)
 
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