Day 53 into the flowering cycle and half of the plants are starting to show signs of sickness. Possibly due to nutrient imbalance. Unfortunately this has been going on for sometime now. But we didn't realize it was not going to self-correct.
Most of the indica plants appear to be thriving. Leaves are green to dark green. But as you can see in the photos the sativa plants have light green and worse yellow green leaves.
The Sativa were transplanted somewhere around 20 - 30 days into the flowering period. They went from a 1 gallon smart pot to a 5 gallon smart pot.
Aside from that they have received the same low stress training, topping and feeding as the indica.
Damage Control:
We're trying to figure out what is needed to bring these beauties back to the healthy dark green color range.
History:
All plants are being fed on an alternating schedule. Nutrients then the next time is plain pH balanced water and then back to nutrients. Both nutrients and water feedings are pH balanced to around 5.5 - 6.5.
On nutrient feeding days the plants receive, MaxBloom and CalMag. We were trying to keep things simple and not use too many supplements.
The leaves below were pulled off one of the sativa plants shown above. We are not sure at this time if this is a nutrient, light, wind or even ectoparasite issue.
Name that sickness
Seriously we would love to know what the issue is and how to correct it.
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looks like sulfur deficiency.
I agree that this is definitely some kind of middle stage nutrient deficiency. It could be Nitrogen or Sulfur deficiency. As the symptoms are very similar.
Thanks!
deficiencies could also be caused by nutrient lock or build up salts. check the quality of your water and leech the soil(put a plant into a bathtub, or over a bucket and water heavily with 3x the volume of water as the pot.
Pretty sure that it's not nutrient lock. As these girls are not constantly being fed nutrients. On off nutrient feeding days, the water is pH balanced and we make sure there is a decent run off.
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It's fall? They do that and pull the nutrients into the flowering production.
Some strains are like that. As well as color changing.
Just document and try again. And different plants do like different nutrients and levels. What works for some don't work for all.