Help! What deficiency is this?

  • Thread starter Bogdan
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Bogdan

Bogdan

14
3
It looks like either sulphur or iron deficiency to me. The yellowing is only on new and top growths. Noticed it 2 days ago. Its getting worse every day :(

My soil is PROMIX HP with Gaia Green organic dry amendments, water is PH to 6.5 last water was 7 days ago. Soil is still pretty moist. Maybe im giving 2 much water at once?
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Bogdan

Bogdan

14
3
Also my plant smell so strong. Really skunky. Is that a sign of stress when they smell so early?
 
Anthem

Anthem

4,155
263
If the problem starts at the bottom and moves up it is USUALLY a lack of something. If the problem starts with the new grow it is USUALLY too much of something. If you take a close look at the pictures you will see the tips of the leaves have a slight yellowing at the very end of the new growth. This is common with too much nutrient and the plant cannot handle it all. Are you using any Cal Mag? I think the fix is going to be to flush the media with a correct PH solution and Cal Maag. What you are going to want to do is collect the run off and check it when it first starts to run off and check PPM/ec. Plant that size I would no go over 400 PPM's. Once you have the PPM's coming out at 400 PPMs you can stop flushing. I would also add cal mag to the flush.
 
Bogdan

Bogdan

14
3
Anthem said:
If the problem starts at the bottom and moves up it is USUALLY a lack of something. If the problem starts with the new grow it is USUALLY too much of something. If you take a close look at the pictures you will see the tips of the leaves have a slight yellowing at the very end of the new growth. This is common with too much nutrient and the plant cannot handle it all. Are you using any Cal Mag? I think the fix is going to be to flush the media with a correct PH solution and Cal Maag. What you are going to want to do is collect the run off and check it when it first starts to run off and check PPM/ec. Plant that size I would no go over 400 PPM's. Once you have the PPM's coming out at 400 PPMs you can stop flushing. I would also add cal mag to the flush.
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Will flushing work with dry amendments? I will try a flush in a few days if this worsens. I have not added any cal mag. Just one foliar feed of epsom salt. I have general hydro nute line. I wanted to try organic dry amendments first. My ppm meter wont arrive till next week sadly. Edit: I put the 3 worst ones outside in the rain to flush. Hope it helps.
 
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