Plant question with pics

bgmike8

Well-Known Member

• Nov 30, 2020

• #1

Different plants than my previous post.
Night temps 85
Day temps 67
Aero/hydro hybrid
Bunch of 600 watt hid
Hard water

Wondering about the yellow in the leaves. Is this light burn?

 

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firsttimeARE

Well-Known Member

• Nov 30, 2020

• #2

Mg def

 

smokinrav

Well-Known Member

• Nov 30, 2020

• #3

That looks like a nitrogen deficiency from not maintaining veg ferts through the first two weeks of flower, the stretch.

 

bgmike8

Well-Known Member

• Nov 30, 2020

• #4

Mg def? In hard water??

 

firsttimeARE

Well-Known Member

• Nov 30, 2020

• #5

Did you get your water tested? Could be calcium rich which id an antagonist to Mg absorption.

Just a thought

 

bgmike8

Well-Known Member

• Dec 1, 2020

• #6

What do you think about this curling/cupping?

 

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firsttimeARE

Well-Known Member

• Dec 1, 2020

• #7

bgmike8 said:

What do you think about this curling/cupping?

Click to expand...

Looks like N toxicity. Try posting pictures without the HPS on so we can get a look at leaf color

 

bgmike8

Well-Known Member

• Dec 1, 2020

• #8

firsttimeARE said:

Looks like N toxicity. Try posting pictures without the HPS on so we can get a look at leaf color

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Trickyticky

Well-Known Member

• Dec 1, 2020

• #9

Fuck me . That's not happened over night . That is toxicity of nitrogen mixed in with light bleaching .

 

firsttimeARE

Well-Known Member

• Dec 1, 2020

• #10

Def nitrogen tox. How much are you feeding them and what are you feeding them?

Try and keep Potassium:Calcium:Magnesium at a 4:2:1 ratio as a starting point. Most plants will enjoy this. Some may require tweaking.

Otherwise they mess with eachothers absorption.

Look up Mulders Chart. It shows every nutrients protagonist and antagonist in terms of nutrient absorption

Mulder’s Chart of Plant Nutrient Interactions | Permaculture Noosa

permaculturenoosa.com.au

How the arrows work is if its pointing towards a nutrient it affects that nutrient. Some nutrients effect each other in both directions. Like Potassium and Magnesium for instance. As you can see Calcium affects the uptake of 7 different nutrients.

 

Last edited: Dec 1, 2020

bgmike8

Well-Known Member

• Dec 1, 2020

• #11

Ty.
So i was feeding gh flora 3 part per chart. Plus some hydroguard.
Then i switched to lucas ratio. 40 ml micro 80 ml bloom. And i also bumped,that up,to 50. 100. But this was already developing...

Im in a quasi aero setup. I guess i should flush immediately and get a good look at my roots....???

 

firsttimeARE

Well-Known Member

• Dec 1, 2020

• #12

bgmike8 said:

Ty.
So i was feeding gh flora 3 part per chart. Plus some hydroguard.
Then i switched to lucas ratio. 40 ml micro 80 ml bloom. And i also bumped,that up,to 50. 100. But this was already developing...

Im in a quasi aero setup. I guess i should flush immediately and get a good look at my roots....???

Click to expand...

40ml and 80ml per gallon?

 

bgmike8

Well-Known Member

• Dec 1, 2020

• #13

firsttimeARE said:

40ml and 80ml per gallon?

Click to expand...

God damn me im retarded. Im so sorry.
Thats for 5 gal. So 8. 16. And then 10 20