Second grow can't stop the burn

Kingbob420

Kingbob420

Member
This is my second grow but cant get the plants to stop having burn on them. I'm using canna coco a & b, liquid seaweed, calimagic. The strains are sweet seeds blackjack, seedsman girl scout crack, sweet seeds sweet cheese fast version, white label purple bud, humboldt black d.o.g., 00 seeds bubblegum. They are in the first week of flowering. 20171218_072544.jpg 20171218_072510.jpg
 

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auto1dwc

auto1dwc

Well-Known Member
There are a few reasons for a burn look to the leafs, it could be light burn so you would raise your light. It could be a nutrient burn for example.
Need more info on light distance and nute ratio.
 
greg nr

greg nr

Well-Known Member
One other thing I've seen is that when humidity is low, the plant will drink more, meaning it is taking up nutes faster. That can cause a burn. The solution is sometimes to increase humidity (if it low) to slow dow the nute uptake. This is imortant if you are using super soil you can't lower the concentration you are feeding, it is all in the soil already.
 
ANC

ANC

Well-Known Member
Indeed if you run in a hot period/area you can come down a whole 2 points K on the NPK ratio.
 
Kingbob420

Kingbob420

Member
greg nr said:
One other thing I've seen is that when humidity is low, the plant will drink more, meaning it is taking up nutes faster. That can cause a burn. The solution is sometimes to increase humidity (if it low) to slow dow the nute uptake. This is imortant if you are using super soil you can't lower the concentration you are feeding, it is all in the soil already.
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The humidity has been high around 70%
 
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