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Stonecrusher
Well-Known Member
Hi OGP and thanks for the information. It is hard to tell what is happening with the new leaves form the chart. There just doesn't seem to be an example that fits. The leaves that are curling are all young. From my best reckoning it could be a Zinc deficiency. The curling leaves don't turn brown, get spots, or die they just seem to mature into normal leaves, but the plant with curling leaves is going slower than the other two.Here are a few charts I use for quick reference.
Stress can cause some issues. But I feel yours looks more nutrient related. Look at the immobile nutrient chart above.
Be sure to monitor your watering, and give them time to fully dry in between. Check emitters are saturating full areas, not just leaving wet spots in your soil, and other areas dry.
I know you mentioned you use grow dots, which one? And how long since you have last applied? How much? I don't know a lot about them. Just curious.
This is my first go with Grow Dots and I am learning. I am using the indoor/autoflower formula. I think they may be a little strong for young plants. I have been careful to avoid overwatering. I certainly don't have the new drip system dialed yet either. I suspect they may be leaving dry spots in the soil and I feel like I need a few more days to see if I can get the water volume where it needs to be. They drip much slower than I expected and Ive been slowly increasing the time that the pump is on as I am afraid of too much water.