Sulfur Deficiency?

Porky101

Porky101

Well-Known Member
Hey guys ,

My plant is about 55 Days old , it is an Auto Short Ryder.
Temps : 70-77F
Humidity: 20-40%
PPM : 900-1150
PH : 5.5-6.5
Nutes : GH Flora micro , Flora Bloom , Cal mag , Big Bud , Mineral Magic , Amino Acid Mix , Fulvic Acid , Bio Bloom Booster


Anyways The LOWER bud sites are developing yellow leaves around the BUD.....the top bud sites are fine and are pretty green. I have included pics of the lower buds and the top buds.....Any Idea why the leaves are yellowing from the INSIDE OUT (Sulfer?)

Also the lower leaves deeper inside the canopy are turning yellow and dropping off....Nitrogen deff or normal for flowering?

Is 1100PPM to little? the PPM generally drops over night to about 900PPM and I just add more Micro and Bloom to bring it back to 1100+- PPM.

How far Is she to harvest..I cant see any THC Crystals atall yet?

Thanks for any help!:)

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Superstrainz

Superstrainz

Member
Honestly 1100 ppm seems too high..since you're getting close to the end of the cycle you might want to start weaning the plants off that high of PPM I get down to 500-600, but I really dont know. Was this a slowly onset problem or did it happen overnight? Also what medium are you using
 
C

churchhaze

Well-Known Member
This is iron deficiency. Make sure your pH is between 5.5-6. A pH of 6.5 in hydro will actually make iron harder to take up. For some reason people with the latest LED grows have been more prone to getting iron deficiency. If getting the pH below 6 doesn't fix it, get some iron sulfate or iron chellates and it will fix that issue.

It seems more like a blockout due to pH being too high than an actual lack of iron because of all the other issues that iron deficiency wouldn't cause (the necrotic spots).

Porky101 said:
Hey guys ,
My plant is about 55 Days old , it is an Auto Short Ryder.
Temps : 70-77F
Humidity: 20-40%
PPM : 900-1150
PH : 5.5-6.5
Nutes : GH Flora micro , Flora Bloom , Cal mag , Big Bud , Mineral Magic , Amino Acid Mix , Fulvic Acid , Bio Bloom Booster


Anyways The LOWER bud sites are developing yellow leaves around the BUD.....the top bud sites are fine and are pretty green. I have included pics of the lower buds and the top buds.....Any Idea why the leaves are yellowing from the INSIDE OUT (Sulfer?)

Also the lower leaves deeper inside the canopy are turning yellow and dropping off....Nitrogen deff or normal for flowering?

Is 1100PPM to little? the PPM generally drops over night to about 900PPM and I just add more Micro and Bloom to bring it back to 1100+- PPM.

How far Is she to harvest..I cant see any THC Crystals atall yet?

Thanks for any help!:)

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Click to expand...
 
C

churchhaze

Well-Known Member
Also, if ppm is dropping that much over night, your plant is still using a ton of nutes, so 1200 is not too high at all.
 
Porky101

Porky101

Well-Known Member
Checked again ,

PPM's dropped from 1200 to 900. So re-added water and nutes to make PPM 1350 now. No signs of burning or withering so I think the plant is just hungry? thanks for the replys;)
 
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