Top plant (new growth) yellowing

Blackketch

Well-Known Member
hello, it's been a while since I've been starting to notice a yellowing of the leaves on top of the plant .. can you tell me what it could be?IMG_20211204_152157.jpgIMG_20211204_152136.jpgIMG_20211204_152136.jpgIMG_20211204_152136.jpg
 

Herb & Suds

Well-Known Member
17 Liters.. the medium is Plagron Royal Mix
Hmm it doesn’t look that big but I’m sure you know
No clue on your soil mix
I’ll still say that thing looks to big for its pot
What are you doing for lights and how long has she been vegging ?
 

Blackketch

Well-Known Member
Hmm it doesn’t look that big but I’m sure you know
No clue on your soil mix
I’ll still say that thing looks to big for its pot
What are you doing for lights and how long has she been vegging ?
honestly i do everything the same all the time, except for some training i experiment sometimes, and it's all gone well with pretty good yields but this time it all seems to be going wrong and i don't know why .. it's been in vegetative state for 50 days and i usually first 2 months with pre-fertilized soil and from the first day of flowering I start with the advanced nutrient fertilizers .. I wanted to send them to bloom tomorrow but I'm afraid that if I leave now that they have problems I will have a bad yield. Mars Hydro Tsw2000 18/6 38cm above the tips
 

Blackketch

Well-Known Member
That’s a good root trimming pot
Are the others the same type?
yes the same but the latter has only 2/3 liters more capacity .. however you think it is normal that the tops are so light / yellow? I have always noticed that the new buds have this color but this time they are worrying me .. and I don't understand a thing, if it were a deficiency it shouldn't start from the lowest leaves? here it seems that the others are dark green and those at the top light green
 

Herb & Suds

Well-Known Member
yes the same but the latter has only 2/3 liters more capacity .. however you think it is normal that the tops are so light / yellow? I have always noticed that the new buds have this color but this time they are worrying me .. and I don't understand a thing, if it were a deficiency it shouldn't start from the lowest leaves? here it seems that the others are dark green and those at the top light green
This is just a guess but
My experience with those pots is they are hard to water thoroughly as the roots buildup
Mine won’t even fit in a five gallon bucket , so water keeps coming out the sides rather than soaking all medium
That is my only thought that you may not be soaking the pot thoroughly
 

Blackketch

Well-Known Member
This is just a guess but
My experience with those pots is they are hard to water thoroughly as the roots buildup
Mine won’t even fit in a five gallon bucket , so water keeps coming out the sides rather than soaking all medium
That is my only thought that you may not be soaking the pot thoroughly
oh yes, unfortunately these pots have this problem but I can still solve it by watering very slowly! however I assure you that the plants receive water homogeneously throughout the soil
 
This is a pretty good site.
If it's new growth its possible zinc or iron according to what is posted.
The one I started 2 months ago had lighter colored leaves starting with the second set of new growth. I noticed they were not as green.



hello, it's been a while since I've been starting to notice a yellowing of the leaves on top of the plant .. can you tell me what it could be?View attachment 5040311View attachment 5040312View attachment 5040312View attachment 5040312
this is the healthy one that actually has the largest pot
Possible Zin
hello, it's been a while since I've been starting to notice a yellowing of the leaves on top of the plant .. can you tell me what it could be?View attachment 5040311View attachment 5040312View attachment 5040312View attachment 5040312

Zinc?

 
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