See now your way over thinking, all autoflowers are notoriously eaysy to nute burn all of them, your plant is not to sensative you are overfeeding, u need to prune off those dead burnt leaves, make shure your ph is not way off, let it recover then go much easier on bloom nutrients, the main problem with autoflowers is people do not understand how sensative they really are and how much less nutrients they really need. All pics are different strains of autoflowers i have run lately, you need to understand that yes they are sensative all of them but as u can see once you understand them u can pump them out.
Great post!
Using the pictures posted above, lets look at those plants for the purpose of a few observations. See the very slight tip burn? He's using the tips of the plants to help him determine the strength of his nutes. This is what I do, Although I haven't grown autos yet, the approach still applies. I try to have my soil mix full enough of nutrients to pretty much make it through the whole grow. Obviously at some point, most plants need at least a little feeding. I always use minimal salts based ferts if I think they need feeding. If I see the tip burn after my feeding, I know that my soil is still good. My goal when I feed is to give the plant what she needs. Too many people have this idea that more food means faster growth when its rarely that simple.
Growing plants is a lot like raising children. You try to provide an environment in which they will thrive. However, at the end of the day, no matter what you do their 18th birthday will not come sooner. The plants are pre-programmed geneticaly to finish when they do. While you can slow their development down with improper care, you cannot speed up the genetic footprint no matter how perfect you care for the plant.
1: Let the plant tell you what she needs. Don't try to force her to grow faster. When it comes to fertilizers and feeding, this is a common misconception .... more does not necessarily means faster growth where the best answer is give her enough food to promote healthy growth.
2: Look to keep her happy by watching the new growth. It's the new growth that tells you how you are doing reading the plant's needs.