What deficiency is this or is it light burn?

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Ls420

Member

• Oct 22, 2021

• #1

Hi there....first grow that is finally going somewhat right. So, I see some tops that are pale compared to others and I also noticed brown spots on the leaves of the stalks that are not as dark green as should be. I just flipped coming up on 3 weeks ago....from what you can see, am I in any need to worry? I've been told that deficiencies sometimes happen in the early flower stage? Any advice/help is greatly appreciated as I'm almost to the finish line. Lol

 

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Canuck3

Well-Known Member

• Oct 22, 2021

• #2

Hard to tell with the lighting... Are you able to take another picture when your grow lights are off? Maybe use flash on your phone or if your ceiling lights are enough to illuminate the tent for the photo that works too.

 

L

Ls420

Member

• Oct 22, 2021

• #3

Canuck3 said:

Hard to tell with the lighting... Are you able to take another picture when your grow lights are off? Maybe use flash on your phone or if your ceiling lights are enough to illuminate the tent for the photo that works too.

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How bout these?

 

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thisbuds4u101

Well-Known Member

• Oct 22, 2021

• #4

Phosphorus deficiency

 

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Canuck3

Well-Known Member

• Oct 27, 2021

• #5

thisbuds4u101 said:

Phosphorus deficiency

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How can you tell it's phosphorus and not nitrogen? Just for my own knowledge, still learning myself... I would have thought nitrogen though

 

thisbuds4u101

Well-Known Member

• Oct 27, 2021

• #6

Just 40 yrs experience growing and a 22 yr. career in plant science.

 

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Ls420

Member

• Oct 27, 2021

• #7

thisbuds4u101 said:

Just 40 yrs experience growing and a 22 yr. career in plant science.

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Quick question....end of week 3 of flower and this is starting. What is it and how can I fix it if possible? Thanks in advance

Super new so bare with me... Lol

 

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thisbuds4u101

Well-Known Member

• Oct 27, 2021

• #8

I’d flush one good cycle then feed them cal-mag 5ml per gallon you can mix with nutes only water when top two inches of soil are dry. Remove the leaves that are seriously affected.

 

MyBallzItch

Well-Known Member

• Oct 27, 2021

• #9

What's your medium and what do you have on your feeding schedule.

 

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Ls420

Member

• Oct 27, 2021

• #10

thisbuds4u101 said:

I’d flush one good cycle then feed them cal-mag 5ml per gallon you can mix with nutes only water when top two inches of soil are dry. Remove the leaves that are seriously affected.

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So its calcium I'm short on? Just so happens I just bought some cal-mag cause a friend said its a must to have on hand. Lol. Does it take a day or two or is it instant?

 

thisbuds4u101

Well-Known Member

• Oct 27, 2021

• #11

Couple days don’t worries not that bad you got this