recover from nitrogen toxicity

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akaki

Well-Known Member
I had some toxicity issues with nitrogen before (dark green leaves).Before 2 days i flush the plant and today i realize that all tops are light green
IMG_2424.JPGIMG_2420.JPG IMG_2416.JPG

is that recovery sings or i have a new problem?
the plant is 1 month in flowering
temps 25-29 C
ph 6.7
medium perlite black peat 50-50
 
Bugeye

Bugeye

Well-Known Member
Dark green leaves don't necessarily mean nitrogen toxicity, some strains are very dark. The tell tale sign is a downward clawed leaf tip which will not go away. So I don't think you were over doing the nitrogen to begin with because I don't see the claw in your pic. New growth is generally a lighter shade of green but if it has gotten lighter from what you had before then it can be a sign of a nutrient need. Nitrogen deficiency will start at the bottom of the plant so if the bottom is still looking good it is something else.
 
A

akaki

Well-Known Member
Bugeye said:
Dark green leaves don't necessarily mean nitrogen toxicity, some strains are very dark. The tell tale sign is a downward clawed leaf tip which will not go away. So I don't think you were over doing the nitrogen to begin with because I don't see the claw in your pic. New growth is generally a lighter shade of green but if it has gotten lighter from what you had before then it can be a sign of a nutrient need. Nitrogen deficiency will start at the bottom of the plant so if the bottom is still looking good it is something else.
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the plant is acapulco gold from barneys farm
if i remember well the leaves of new growth was more dark green. i will wait to see tomorrow ..maybe could be nothing...
 
L

LegendofPedro

Member
I would give it a week before worrying. Plants move slowly.

They don't look too light in colour, it's just a big contrast with the toxic dark green.
 
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akaki

Well-Known Member
in second pick especially the top leaves have two kinds of green color a darker and a lighter one...in the same leave...
 
Bugeye

Bugeye

Well-Known Member
akaki said:
the plant is acapulco gold from barneys farm
if i remember well the leaves of new growth was more dark green. i will wait to see tomorrow ..maybe could be nothing...
Click to expand...
I grew the same strain indoors this summer. Mine was a bit of a runt but went absolutely ravenous for calcium in mid flower. I don't see signs of calcium deficiency in yours but keep an eye out for it later in flower. Good luck!
 
A

akaki

Well-Known Member
Bugeye said:
I grew the same strain indoors this summer. Mine was a bit of a runt but went absolutely ravenous for calcium in mid flower. I don't see signs of calcium deficiency in yours but keep an eye out for it later in flower. Good luck!
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i had calcium issues too but at veg stage.I using led lighting some say that led cause mg/cal def.
thanks i will keep an eye!!!
 
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