Like the title says. I want to try my hand at organics at some point in the future but before I begin I want to truly understand the why instead of just the how. I know there are plenty of helpful threads with beginner soil mixes and things of that nature but I would love to know more, such as why those soil mixes are effective (which ammendments provide certain nutrients, etc.) Sorry if a thread like this already exists, I couldn't find it. Thanks ahead of time blades.