I'm not telling anyone what to do or not, but I think anyone serious about gardening should read a book like this;
https://www.amazon.com/Teaming-Micro...+with+microbes and educate themselves about their soils and the life within it.
The author tries to keep it simple as possible. I don't usually read, but I have to say this was a good read. It also explains briefly how fertilizers came about and what they do.
My 2 cents.
