Please Help dont know the problem!?!

  • Author Author JellyMan420
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HI, i think i have a potassium problem, my whole plant is almost going yellow and burning the tips of the leaves, i noticed the minor problem a few days ago and since then its got progressively worse, my stems through out the plant are turning purple and look brittle, the leaves are wilting and turning yellow with little brown burn spots all over. I use a PH of about 6.8 and the run off was 3.3 before i flushed my baby, now the runoff is 6.6. - 6.7
i also have clones that look like there going through a minor but the same problem could anyone help me in solving this problem???

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Comments

P
Potassium isn't absorbed properly when there is too much calcium or nitrogen in the system. Check the pH of your water, and flush your whole system with water that contains half the normal amount of nutrients and see if your plant starts showing signs of improvement.

What nuts are you feeding ? How old is the plant ?
 
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J
Right now I'm using DNF (Dutch nutrient formula) and my plant is about 2-3 months old, i was keeping it in veg so i can use it as my mother plant, then this started to happen....
 
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P
If its a potassium problem Older leaves turn yellow then start getting dark, scorched lesions around the edges of the leaves. Plants may stretch and stems may become weak. The symptoms are very similar to an iron deficiency except the tips of the leaves curl as the edges burn and die. Id start with flushing them. And maybe let it fall into flowering. Dont want to hold it back to long, let the plant do what a plant does :)
 
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J
from the picture above, those yellowing leaves on this inside of the plant have pretty much dried up nd died, is there anyone who can help further?
 
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P
Its a commen reaction for the under leaves to die out. Meaning most of your nuts are focusing on the flowers and not paying most attention to the leaves . Just pull them off.
 
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J
so i shud put it into bud? and just cut all the dead leaves off? i also have clones that are going throw the same problem and their only 2 weeks old at max and tips?
 
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J
any tips* I have the clones in a dome with good humidity, i haven't administered any chemicals to the clones yet, shud i start or will that make it worse?
 
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P
I say if most of your plant is going yellow its a potassium deficiency by the looks of it but if 5-15% of the bottom LEAVES are yellow its normal but i would short the light spand to12/12. for Potassium deficiency read my first post. If its just leaves on bottom just cut off but the pic shows a good amount of yellow.
 
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P
Bro i did some looking around and i was reading and thus came up

: Phosphorus aids in root growth and overall health of the plant and is especially essential when the plant is in flowering. Cannabis loves phosphorus and it is very unlikely that cannabis gets too much phosphorus. A plant which is deficient in phosphorus will have slow, stunted growth. If there is a major deficiency, the leaves may exhibit dark gray or purplish splotches. The last picture below is an info- graphic with more information about phosphorus and your marijuana plant.
 
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