THCFarmer.com
121,111 Members Log In Register
Log In Register

nute burn big time, any advice?

  • Thread starter Thread starter imgrowing
  • Start date Start date
  • Tagged users Tagged users None

nute burn big time, any advice?

imgrowing 53 Replies 8,613 Views
Page 1 of 3 · Replies 1–20 of 54
I

imgrowing

Posts
450
Reactions
1,062
Joined
Jun 5, 2023
Points
143
#1
i fed 1/3 recommended gaia green 4-4-4 and 2-8-4 4 weeks into 12/12 and 3 weeks earlier i fed 1/3 gaia green 4-4-4 and a bit of worm castings into it.
now i have big time nute burn.
in gaia green living soil.
as soon as i realized i f**k'd up i flushed the soil.
question is, should i trim off all the burn to a crisp leaves or leave them hoping some of the healthy parts will still produce energy for the buds?
as you can see, i already trimmed some.
the picture looked better on the computer, sorry
Nute burn big time any advice
 
#2
This looks more like heat stress. What are you using for a light, How far above your plants is your light.
 
#3
Imzzaudae said:
This looks more like heat stress. What are you using for a light, How far above your plants is your light.
Click to expand...
i'm using mars hydro ts 3000 x2 with the lights about 18" or so above the girls.
temps never go above 26c (79f)
leaf temps are the same
humidity is about 45-50
water PH is at 6.5
top dress dry gaia green amendments
ppfd is 700ish

i'm not saying your wrong, but i can't see heat stress
by all means anyone correct me if i'm wrong
 
#4
imgrowing said:
i'm using mars hydro ts 3000 x2 with the lights about 18" or so above the girls.
temps never go above 26c (79f)
leaf temps are the same
humidity is about 45-50
water PH is at 6.5
top dress dry gaia green amendments
ppfd is 700ish

i'm not saying your wrong, but i can't see heat stress
by all means anyone correct me if i'm wrong
Click to expand...
I'm surprised using only 1/3 of the gaia green did this to your plants, are they autos? BEcause autos can get by with just the 4-4-4 the whole cycle to harvest. Raise your lights to 24 inches above the plants
 
#5
Week4Bytch said:
I'm surprised using only 1/3 of the gaia green did this to your plants, are they autos? BEcause autos can get by with just the 4-4-4 the whole cycle to harvest. Raise your lights to 24 inches above the plants
Click to expand...
they are purple kush photos
no sign of light burn or stress as my rookie eyes can see, and like i said 700ish ppfd and leaf and room temps seem to be in line.
does light distance matter when i can control intensity?
 
#7
imgrowing said:
i had to swap to gaia green living soil because fox farm can't ship to canada anymore for some political crap.
first 2 grows with FFOF turned out fantastic and now i have to learn from start again with new soil!!!
GRRRRRRR
Click to expand...
Stick your hand above the plant and feel the light hitting the back of your hand, if it's comfortable your good. I didn't know Gaia Green had they're own soil. Seems like the soil could have carried you the whole grow without having to add anything.
 
#8
Week4Bytch said:
Stick your hand above the plant and feel the light hitting the back of your hand, if it's comfortable your good. I didn't know Gaia Green had they're own soil. Seems like the soil could have carried you the whole grow without having to add anything.
Click to expand...
sucks having to switch soil with zero notice, but i fed 1 time at 6 weeks into veg and vegged for 8 weeks before flip.
i guess gaia soil works for longer than advertised.
live and learn i say. sucks that i lost so much potential but, at least i learned and anyone else that reads this can also learn from my f ups
 
#9
imgrowing said:
sucks having to switch soil with zero notice, but i fed 1 time at 6 weeks into veg and vegged for 8 weeks before flip.
i guess gaia soil works for longer than advertised.
live and learn i say. sucks that i lost so much potential but, at least i learned and anyone else that reads this can also learn from my f ups
Click to expand...
Happens, a lot. If we're not over feeding, we're underfeeding..lol. And what's good for one plant is terrible for another. I'd try it again with what you now know with the same Purple Kush. Run it again as they say.
 
#12
cannafarmer420 said:
Gaia soil only sells in Canada. The plant should not get burnt by gaia something else is going on
Click to expand...
my first thought was PH lockout but my POS test strips said PH 6.2
i bought i PH tester and it read 8.1
PH in soil shouldn't be an issue but i flushed anyways with 6.5
does gaia soil not buffer PH as good as fox farm maybe?
 
#13
imgrowing said:
i fed 1/3 recommended gaia green 4-4-4 and 2-8-4 4 weeks into 12/12 and 3 weeks earlier i fed 1/3 gaia green 4-4-4 and a bit of worm castings into it.
now i have big time nute burn.
in gaia green living soil.
as soon as i realized i f**k'd up i flushed the soil.
question is, should i trim off all the burn to a crisp leaves or leave them hoping some of the healthy parts will still produce energy for the buds?
as you can see, i already trimmed some.
the picture looked better on the computer, sorry
View attachment 2079057
Click to expand...
Did you mix in your nutes properly into the water? Some nutes must be mixed in a certain order. Does Gaia follow a specific order?

Also post pictures of bottom of the plants, their veg under the canopy.
 
#14
imgrowing said:
my first thought was PH lockout but my POS test strips said PH 6.2
i bought i PH tester and it read 8.1
PH in soil shouldn't be an issue but i flushed anyways with 6.5
does gaia soil not buffer PH as good as fox farm maybe?
Click to expand...
pH of soil is diffrent from pH of water. If your soils pH is that high something is way off in the soil. And the soils pH does matter if your going organic. Which pH tester are you using?
 
#15
Zerberus said:
Did you mix in your nutes properly into the water? Some nutes must be mixed in a certain order. Does Gaia follow a specific order?

Also post pictures of bottom of the plants, their veg under the canopy.
Click to expand...
top dressing dry and mixed it in then added water
 
#16
Week4Bytch said:
pH of soil is diffrent from pH of water. If your soils pH is that high something is way off in the soil. And the soils pH does matter if your going organic. Which pH tester are you using?
Click to expand...
water PH was that high not the soil. when i flushed the run off was 6.4
 
#17
imgrowing said:
water PH was that high not the soil. when i flushed the run off was 6.4
Click to expand...
6.4 is a good spot for soil. Using some type of soil pH tester would be idea. I'm not sure testing runoff is an accurate way to test the soils pH. Something is off with you soil. Could be the water source too. You mentioned 8.2, sounds like hard tap water.
 
#18
These lights need to be 30" above the plants 65% power setting for veg. A little closer when flowering but not much.
As for Gaia all purpose 4-4-4 Nitrogen 4 is ok but the phosphorus and potassium percentages are way out of wack for cannabis.
You need to use a 3-1-2 formula for cannabis. Carefully calculate correct nitrogen content. With 3-1-2 the Phosphorus and magnesium will automatically fall in line.
9-3-6
6-2-4
12-4-8
If you want to grow good bud you need to understand your fertilizer and how much your applying.
Hope this helps you. It's not hard just grab a pen and a calculator. Start running numbers until you can just do it.
Dry fertilizer calculation


Liquid fertilizer calculation.
 
Last edited:
#19
I'm thinking light burn is probably the problem. I was also thinking there might be too much air flow near the plant, because that can cause leaf tips to turn brown like that.

I doubt it's nutrient burn. I use more Gaia Green than the OP and haven't had that problem. I use All Purpose during vegetation and transition to Power Bloom for flowering a week before I change the light.
 
#20
Imzzaudae said:
These lights need to be 30" above the plants 65% power setting for veg. A little closer when flowering but not much.
As for Gaia all purpose 4-4-4 Nitrogen 4 is ok but the phosphorus and potassium percentages are way out of wack for cannabis.
You need to use a 3-1-2 formula for cannabis. Carefully calculate correct nitrogen content. With 3-1-2 the Phosphorus and magnesium will automatically fall in line.
9-3-6
6-2-4
12-4-8
If you want to grow good bud you need to understand your fertilizer and how much your applying.
Hope this helps you. It's not hard just grab a pen and a calculator. Start running numbers until you can just do it.
Dry fertilizer calculation


Liquid fertilizer calculation.
Click to expand...

Thanks for allowing us upstairs it was cold out there Lol. Nice Vedio posted here thank you for posting.

OMG that is basic math. Measuring my nutes this way is so easy to get my mixed nutes exactly to what they need.
I use 4 syringes 💉 with no sharp needle points a 3ml a 5ml a 10ml and a 15ml makes it easy and very accurate when measuring my nutes.
 
Page 1 of 3 · Replies 1–20 of 54
Back
Top Bottom