Doctors please diagnose my plant!

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woo2woo

Active Member
1000w
temp 67f-85f
humidity veg 40-70
humidity bloom 30-50 (mainly low very dry)
c02 at 1500ppm during light cycle only during bloom.
soilless
ph 6.0 every time
nutes: advanced nutes (sensi a/b system + carboload + kushy kush + overdrive)
nutes veg seed to 8" (100-800ppm progressing each week)
Nutes bloom 800-1250 progressing each week)

plants in veg we ALL green no spots, bumps, curls, waves.. everything was lush.

Come bloom i notice this happening all over starting with fan leaves. my buds look great just these signs worry me.. Im missing something.. my gut feeling says nitrogen from the yellowing. I need a helping hand. thanks.
 

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woo2woo

Active Member
plant is yellowing thought out
buds are large green and look heathly
the leaves fade from green to yellow and curl inwards.
 
anomolies

anomolies

Well-Known Member
How far along are you in bloom? cus it may be too late to give nitrogen, and there may be no need. Never used Sensi A & B so I don't know if it causes nitrogen deficiency in bloom.

I'm thinking it's a nitrogen deficiency too.
http://www.icmag.com/ic/showthread.php?t=11688 (There's a lot more info than what I quoted here so read the nitrogen & magnesium parts to decide for yourself).

Magnesium is one of the easiest deficiencies to tell… the green veins along with the yellowness of the entire surrounding leave is a dead giveaway, but sometimes that’s not always the case here. In case you have one of those where it doesn’t show the green veins, sometimes leaf tips and edges may discolor and curl upward. The growing tips can turn lime green when the deficiency progresses to the top of the plant. The edges will feel like dry and crispy and usually affects the lower leaves in younger plants, then will affect the middle to upper half when it gets older, but It can also happen on older leaves as well. The deficiency will start at the tip then will take over the entire outer left and right sides of the leaves. The inner part will be yellow and or brownish in color, followed by leaves falling without withering. The tips can also twist and turn as well as curving upwards as if you curl your tongues.
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Should be nitrogen deficient though if your plants were completely healthy in veg. You're suppose to let it naturally yellow out mid through late bloom

Unlike a magnesium deficiency, nitrogen def will start from the tips and work its way back to the leaf node. Nitrogen and Magnesium get confused. The best way to tell them apart is, nitrogen deficiency starts around the tips and works its way to the back of the leaves, where a magnesium deficiency will cover the entire outer part of the leave and make the entire leaves yellow leaving the veins to stay green. If your plants are having a slow growth rate and have yellowing of the leaves, then most likely it’s a nitrogen deficiency.
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