Is this Light Burn?

[green member]

Having a tough time here deciding on the problem. new set up. my first thought is scald from LEDs being too close to the canopy (102 watts of screw in LEDs about 12 inches up) but my plants in VEG and early flower look great even closer to the lights! Im Running LCs soiless mix number 1. topdressed with compost and a complete organic fertilizer. had fantastic results with this mix outdoor this year. any advice greatly appreciated!

 

[moses wellfleet]

It's not light burn. Plants are deficient imho, I had symptoms like that once. Probably multiple elements lacking P K and Ca. It's possible that it could be the opposite end of the scale and they are over fed, I never experienced that so not sure what it looks like. How closely did you stick to the recipe?

 

[green member]

Thank you for your input Moses. I use lc mix #1 for everything now following the recipe exactly. To this I top dress Steve Solomon's complete organic fertilizer.

 

[svnfingerblades]

looks like what happened when one of my friends decided to stretch her veg nutes with her period blood.

 

[moses wellfleet]

Isn't lc mix water only? Can you list the ingredients?

 

[moses wellfleet]

If you were top dressing outdoors, you can't use the same amounts indoors on plants confined to containers. I suspect your problem is related to that!

 

[green member]

LC’s Soiless Mix #1:

5 parts Canadian Sphagnum Peat or Coir or Pro-Moss
3 parts perlite
2 parts worm castings or mushroom compost or home made compost
Powdered (NOT PELLETED) dolomite lime @ 2 tablespoons per gallon or 1 cup per cubic foot of the soiless mix.

To this I add a tablespoon of COF per quart.

Complete Organic Fertilizer (COF) Recipe
Mix uniformly, in parts by volume:
4 parts seed meal
1/4 part ordinary agricultural lime, best finely ground
1/4 part gypsum (or double the agricultural lime)
1/2 part dolomite lime
Plus, for best results:
1 part bone meal, rock phosphate or high-phosphate guano
1/2 to 1 part kelp meal (or 1 part basalt dust)

 

[moses wellfleet]

The dolomite is added to the soil mix and again in your top dress recipe.
How much of the top dress are you applying?
When you grew outdoors was it in containers or directly in the ground?

I once applied too much dolomite lime to my indoor plants and they suffered exactly the same symptoms as your pics. What happens is the excess lime locks out other elements and that is why plants appear deficient. It usually takes effect first few weeks of flower when the lime becomes available. Younger plants may seem unaffected because the lime is not yet available for the veg phase.

 

[satollo86]

hi there!! I have a big problem...my english sucks a little bit so, be patient please!!my plant is under led and everytingh was right until yesterday when I seen this... is in soil(coco soil) from 45 days in vegetative , I want to switch 12/12 this week... I'm fertilising every 3 days with a biogrow CELLMAX and a roots booster...is time to switch? is too fertilize?what's the problem??

 

[ozzieAI]

it is not the lights...MW is on the ball IMO...flush and re balance, seaweed from my experience really helps plants recover...

good luck

satollo86...welcome...but it would be better to start your own thread and better pics