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- Thread starter Barrybee
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Dr.Raybanzzz
Member
What growth stage are you in currently? It's either nitrogen deficiency or nutrient lockout. Check pH. Feed with a high nitrogen plant food and can add some vinegar or lemon juice to lower ph
Kushash
Well-Known Member
I would not be so quick to add anything.
Much more info is needed.
Some pictures of the whole plant would help.
Info on your medium and what you have been feeding, how often and how much would help.
Barrybee
Active Member
Pictures I can't provide right now because I am not home I'm using Fox Farm soil I am in the 5th week of flower I've been using molasses foxfarm Big Bloom and tiger bloom once every two weeks I use Sensi grow
LOL, dude, you have no idea what he's ph'ing to or feeding! Above all else, that has zero to do with nitrogen!!! Nitrogen def OR nutrient lockout? That makes no sense! lol. Oh my, the false news that goes around!
To the OP, post a pic of the entire plant if you can.
Bernie420
Well-Known Member
From the purple petiole I am going to vote low on mag caused by any number of reasons like not enough mag.
One leaf I wouldnt sweat it much in the 5th week of flower, as in I wouldn't try to make a major move correcting it maybe a slight adjustment here or there. Tad bit more mag get some microbes in the root zone, nothing drastic.Sometimes the plant will just suck all the goodies out of a leaf for whatever reason.
And since you picked that one leaf off you dont actually have a problem anymore.
One leaf I wouldnt sweat it much in the 5th week of flower, as in I wouldn't try to make a major move correcting it maybe a slight adjustment here or there. Tad bit more mag get some microbes in the root zone, nothing drastic.Sometimes the plant will just suck all the goodies out of a leaf for whatever reason.
And since you picked that one leaf off you dont actually have a problem anymore.
Purple petioles are actually caused by not enough phosphorus, but for some reason, many think it's mag def that starts it. A magnesium deficiency can make phosphorus less available to the plant as without enough magnesium, phosphorus gets restricted since Mag carries P throughout the plant. That yellowing on one leaf doesn't appear to be a mag issue, it's more the veins that are yellow, not between the veins, and only 3 fingers of the leaf. Just 1 leaf, i wouldn't worry too much yet, it can be caused by hotter stagnant air, otherwise, it may be the early stages of a phosphorus deficiency..more pics are needed of the whole plant.
Bernie420
Well-Known Member
So what your saying is not enough mag in the plant. ?
No, actually in plain english, clear as day, my last sentence says it, if this is a deficiency issue, it will be phosphorus. What i said was, in some cases, low levels of magnesium can induce lower levels of phosphorus, but from that 1 leaf, it doesn't appear to be magnesium related, again, more pics are needed, but to me, that 1 leaf is not showing a mag deficiency.
Dr.Raybanzzz
Member
Not sure why you mixed my post with something else and quoted it, but anyways, good luck! "nitrogen deficiency is the first cause of yellowing", who wrote that and quoted me for it? lol I would never say that as it makes no sense at all to suggest any and all yellowing must be a nitrogen deficiency? Wow, i dont waste time replying to statements like that! lol
Dr.Raybanzzz
Member
Lol as you reply to the statement you would never reply to. Put some ice on that ego tough guy. It's going to be ok.
Barrybee
Active Member
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NrthrnMichigan
Well-Known Member
I wouldn't worry about that one leaf. You are going to kill and process that plant within a couple weeks..
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