Plant Leaf Turning Bright Green/Yellowish

Hey guys; first post. Wondering what's up with my autoflower. I'm doing a simple LST, but I woke up this morning and saw one of the lower leaves turning bright green and almost yellow. Pictures are here. I just added some Big Bloom thinking it would help if it's nitrogen deficiency.

Let me know! Thanks

The overall plant looks healthy. No clue to why that one leaf is a brighter shade of green. It's a three blade anyway. In three weeks the 5-7 blade leaves will over take it. Then it'll be nothing but a funky leaf at the bottom of a big plant.

Three fingers leaves are no biggy.

It just seems like the plant is starting to produce leaves of that color towards the bottom. Is this yellowing or nitrogen deficiency?

JacquesWebsterJr said:

It just seems like the plant is starting to produce leaves of that color towards the bottom. Is this yellowing or nitrogen deficiency?

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Before you add anything. Start at the top of the list, check soil PH. If that checks out then it's a deficiency. Add a dose of nitrogen. It'll take about three days for full effect if it's organic. If it's a quick release chemical, about a day and half.

Consider foliage feeding if you can't dose the soil because it's wet. Here's some decent information on it. How, when, why and PH range it needs to be.

http://www.smart-fertilizer.com/articles/foliar-feeding

Could it be burn also?

Also, my stem broke pretty bad. I'm a first time grower. It seems like it might be repairing but could that be the reason for the lighter green colors? I think it's spreading bottomup.

Hey I was just wondering if anyone knows why this is happening to my plant, it's only one in tent doing it, I am six days in flower and the strain is bubble gum , the growth looks real pale green and other leafs are yellowed tips what's going on

JacquesWebsterJr said:

Could it be burn also?

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what type soil are you using? that's a good size pot for that plant the soil shouldn't be out of N yet unless its got very little nutrient

another option to consider is the possibility of over watering

even if its not over watered at the moment if it got over watered in the past

another thing

using a bloom nute when/if you think your light on N isnt the way to go

what are the 3 npk numbers on that bottle?

John kush93 said:

Hey I was just wondering if anyone knows why this is happening to my plant, it's only one in tent doing it, I am six days in flower and the strain is bubble gum , the growth looks real pale green and other leafs are yellowed tips what's going on

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start your own post and link me to it

im4satori said:

what type soil are you using? that's a good size pot for that plant the soil shouldn't be out of N yet unless its got very little nutrient

another option to consider is the possibility of over watering

even if its not over watered at the moment if it got over watered in the past

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Using fox farm ocean. Woke up today and it's far worse. Leave is almost yellow now.

im4satori said:

another thing

using a bloom nute when/if you think your light on N isnt the way to go

what are the 3 npk numbers on that bottle?

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I am using the big bloom I forget the numbers but also using ocean soil from fox farms.

how long has it been in that size pot?

what size pot is it?

ocean forest is good soil
id be surprised if that small plant in that good sized pot ran out of N already

do the roots hold the soil together
does the pot have lots of root growth inside? or is there still lots of room for new root growth?

The pot is 3 gallons. The pot likely has good root growth. However, the stem of the plant is broken. I thought it would supercrop but it isn't recovering
Also. The yellow is from bottom up and my ph is 7

Maybe it's because the stem broke and is not really recovering well at all. This is a tragedy

JacquesWebsterJr said:

Also, my stem broke pretty bad. I'm a first time grower. It seems like it might be repairing but could that be the reason for the lighter green colors? I think it's spreading bottomup.

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Magnesium deficiency starts at the bottom and heads up. They eat a lot of calcium and magnesium. https://www.sensigarden.com/magnesium-deficiency-marijuana/

it looks like N def I agree

but N def and over watering are easily confused

if the plant started small in an oversized pot over watering is more likely to occur

I wouldn't rule out magnesium def either

ocean forest typically runs out of calcium and magnesium first well before N

I don't think the yellowing has anything to do with the pruning
but from the picture the recent pruning could be making me believe the plant is smaller/younger than it is so maybe the roots are further developed than it appears from the size of the plant

you could try watering a little less often, add a very small amount of fertilizer where the N is the highest number
for example if the N# is 7% you might add 5mls to 7mls (max) per gallon

id recommend general hydroponics floranova grow...but don't go adding it to frequently
just 1 time every 7 to 14 days should be more than enough provided your pot is size proper

and 1/4 tsp Epsom salt per gallon (up to 1/2 tsp) occasionally (1xper week maybe) is more than a safe low amount and wont hurt anything and give you a wee bit of magnesium

that covers all your bases and as long as its not over done youll be safe

Are you sure the plant just isn't getting its water because the stem is broken

Check pH first
to me, it looks like magnesium deficiency but hard to tell from that one photo