K deficiency or Nutrient burn?

This plant is 4 weeks into flower. Organic soil media Indoors with TS1000 50 cm away from the top of the plant.
Burnt leaf tips and WHOLE Leaf Yellowing.
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bam0813

Well-Known Member
People are gonna need alot more info . Feed watering temps rh etc. whole plant pics would be good. I see one flower that imo is behind for 4weeks, a lot.
 
People are gonna need alot more info . Feed watering temps rh etc. whole plant pics would be good. I see one flower that imo is behind for 4weeks, a lot.
My bad.
i feed organic nutrients (Chicken manure,Worm castings and Paddy husk ash) and water when it's dry. The flower you see is relatively lower on the plant and shaded from the light by the upper leafs.
Temp is 25-30 C (I live in a tropical country) Humidity is 60-70%
 

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ComfortCreator

Well-Known Member
Is this a landrace sativa? The thin leaves...tell us more we can help!

Do you know your ph of your water input?
Are you watering when it's totally dry or how do you decide?
 
Is this a landrace sativa? The thin leaves...tell us more we can help!

Do you know your ph of your water input?
Are you watering when it's totally dry or how do you decide?
Yes! It's AK49 (Thai Columbian mix). my water pH is around 6.5. and water when the 1in of soil from the top is dry. I use filtered drinking water with molasses.
 

Bluewidow2016

Well-Known Member
My bad.
i feed organic nutrients (Chicken manure,Worm castings and Paddy husk ash) and water when it's dry. The flower you see is relatively lower on the plant and shaded from the light by the upper leafs.
Temp is 25-30 C (I live in a tropical country) Humidity is 60-70%
This plant is 4 weeks into flower. Organic soil media Indoors with TS1000 50 cm away from the top of the plant.
Burnt leaf tips and WHOLE Leaf Yellowing.
View attachment 5101522View attachment 5101523
I am no expert either. But imo I'd say it looks hungry as well. And being for weeks into flower I'd say it's either K or P deficiency.
 
Do you check your ph after adding the molasses? Molasses will drop PH. That strain looks amazing. Hopefully the issue gets taken care of, and you will post it's progress
 

Kassiopeija

Well-Known Member
the black is looking like bacteria or a fungus got hold while your plant is weakening in a deficient state offering dead plant tissue to catch a hold
watch if it doesnt spread ob healthy leaves
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and maybe feed something mineralically to make sure it gets everything...
 

McStrats

Well-Known Member
If you chalk it up to learning and start over you might end up with a better result. If you are a beginner, you should probably keep it simple. I use FFOF and bottled nutes from General Organics (grow/bloom,calmag,bio marine). I have a Timber Vero Cob 400 watt square 4 light set up. I'm a novice and I get really good results with that set up. The environment is huge also. How many air changes per hour, what light, how many watts is it pulling? distance of light, water PH, etc.

Best to start off with a written plan and follow it. I followed Mephisto's grow guide and I had great results.

YMMV and all that..
 

raggyb

Well-Known Member
Some thoughts...Paddy husk ash? I had to google it. I'm seeing mixed info about the ph, is it quite high? Is your chicken manure aged?
 
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