This is a Super Skunk, planted in the ground 3rd week in May. Thought this was a Phosphorous deficiency so did a Phosphorous rich feeding 4 days agoand the fans are still turning this collor one by one.
I have 11 others of various strains that are all healthy, all fed the same way, in the same soil, though being outdoors in a large garden there could be variances but this girl is smack dab in the middle of them all.
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Plant looks very big, if those were the only couple of leaves that didn't look good out of all of your plants? I would pluck em off and don't worry about it. Even if you do everything that you are supposed to do, there will be a leaf here or there that just doesn't make it. Cannabis is living organism with a complex cellular system, can't expect every single leaf to be perfect 100% of the time.
Just the plant using the nitrogen in the lower leaves, they'll fall off. Just not necessary to growth. If it were more or higher up it might be a deficiency