And, only folks who don't use chemicals can reap the benifits they provide!
“Microbes function by way of teammates with one member unlocking another's potential”
Jeff Lowenfells excellent book “teaming with microbes” is very good reading for anyone serious about upping your garden game.
Of course, dummies like me gota read it 3 times. First time trying to pronounce all the words, second time gaining enough understanding to be curious. 3rd time things start to click and im off and running; building tea brewers and enjoying the results of those efforts!
and if you manage to do that sometime you might enjoy reading a college level textbook about microbiology. it's some great information. even if you don't understand chemistry and math you can still learn quite a bit.