I also grow organic and most of us who do have been exactly where you are right now! These pics look super similar to my THC Bomb scrog! They started turning yellow WAY earlier than I anticipated and when I looked at my grow journal, I found two things I needed to improve for the next grow:
1. I was watering WAAAAY too much. It's super easy to overwater organic soil and it actually took about 2-3 weeks before I was able to get the lower portion of the soil dry while not letting the top part get over-dry.
2. I did not provide enough N in veg, especially because I re-use my soil and I had grown Blue Dream in it before which is a Nitrogen gobbler.
SoOrBudgal is right on when she says that you've been over-loving your plants. But don't feel bad, we all do it and it usually takes a few grows or more to realize that usually, less is more. Looking at all the love you've been putting in to your soil it's clear that you want your plants to be healthy and happy so it comes from a good place! Also, organic growing is a little more 'boring' than synthetic grows since you don't have to have a chemistry set to take care of them, just plain 'ol water and an occasional top dressing or amendment.
For the rest of this grow, follow SoOrbudgal's advice and remember it for subsequent grows as well. On your next grow, during the veg stage, you actually have to do very little. Generally I don't do any top dressing during veg and I really never do any teas or anything. Just supplement with Nitrogen once or twice depending on what the plants are doing. When it comes to watering, I found that Nebula's suggested watering schedule works really well although I take a bit longer to ramp it up to the 8 cups but that's partly because once my seeds germinate, I put them right into a 7gal pot. Here is the article with the watering schedule (the whole article is good, but the watering schedule is about 2/3 of the way down):
https://www.growweedeasy.com/are-cannabis-seedlings-overwatered-how-to-fix
If your grow continues like my THC Bomb run, you're going to be okay but you really have to stop yourself from trying to help too much. My yields ended up being less than stellar and it wasn't as quality as I would have wanted, but I certainly had weed at the end and just as important, I learned a LOT!