Great question,
In regards to organic cannabis cultivation, the EM's are just that, essential! If u read up on it folks are always talking about microbes, micro herd, micro beasties, etc etc.
simply put, in organic gardening ( cannabis or otherwise), we are introducing micro life to the soil. We feed the micro life and it in turn feeds our plants. A natural symbiotic relationship. There are benificial fungi, bacterials, and micro organisms in my soil. The whole idea that cannabis has to be cultivated different from other plants is a hydrofarm sham. Cannabis, like tomatoes for example can be cultivated in a variety of ways. But everyone who has eaten a ripe organic tomato knows it tastes far superior. Smoke some quality organic weed and you won't want to ever go back...