Is this plant hurting due to nutrient burn?

J

jarful

Well-Known Member
Hello,

Does this look like a nutrient burn to you? This is my first female and I'm only growing for fun, this is the only plant I have.

Soil grow, recently transplanted from a smaller pot and I only water when the pot feels light. CFLs at night and sun at day. Only applied LST and nothing else.

Should I flush? What would be your recommendation?

Thanks a lot,
 

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Tracker said:
What soil are you using? Are you adding any supplemental nutrients?
Click to expand...

I'm using some generic brand peatmoss soil that supposedly doesn't have any extra nutrients added to it (I've only added lots of perlite to it), and a week ago I've used a really minimal amount of a 20-20-20 water-soluble fertilizer (around a quarter of a teaspoon).
 
jarful said:
Peat-moss


I'm using some generic brand peatmoss soil that supposedly doesn't have any extra nutrients added to it, and a week ago I've used a really minimal amount of a 20-20-20 water-soluble fertilizer (like less than half of a tea-spoon).
Click to expand...
Does the fertilizer have application rate instructions...like tsp/gal to add to water?
 
Tracker said:
Does the fertilizer have application rate instructions...like tsp/gal to add to water?
Click to expand...
It probably has but I've borrowed the quantity I have from a friend and at this moment I'm unsure what are the manufacturers recommendations.

However the amount I've put is really minimal... but still, maybe its too much for this girl?

I'm looking forward to hear your opinion though, what those pics can tell you and what would you recommend me to do? Thanks.
 
jarful said:
It probably has but I've borrowed the quantity I have from a friend and at this moment I'm unsure what are the manufacturers recommendations.

However the amount I've put is really minimal... but still, maybe its too much for this girl?

I'm looking forward to hear your opinion though, what those pics can tell you and what would you recommend me to do? Thanks.
Click to expand...
Well...based on the leaf tips being burned, it looks like nutrient burn. How long ago did you apply the fert? How long after that did symptoms begin?
 
Miracle Grow 20-20-20 directions say 0.5tsp per gallon H2O. Did you exceed that? You might also be having some pH issues based on discoloring leaves and new growth...or it could be nutrient lockout from too much overfeeding.
 
I recommend to test pH and ppm or EC of runoff after watering. Then decide if flushing is warranted after a test. Do you have access to a ph meter and ppm/EC meter?
 
jarful said:
I'm using some generic brand peatmoss soil that supposedly doesn't have any extra nutrients added to it (I've only added lots of perlite to it), and a week ago I've used a really minimal amount of a 20-20-20 water-soluble fertilizer (around a quarter of a teaspoon).
Click to expand...
Just noticed you said you made the application one week ago. It looks like it hasn't had an extreme terrible reaction after a whole week, so I wouldn't recommend flushing.

What is your watering schedule like? Are you waiting for the soil to get dry enough (pot gets light) before you water?

I still recommend you test the pH and ppm of runoff, so you know the situation. Also, test the same on the water you're using and your feeding mix.
 
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