Hey FrostickZero...Someone has to say it...

Stop asking stupid questions. YES, you can.

Cannabis can be cultivated in many different
ways, and soil just happens to be one of them...
As a matter of fact, it is the original method (duh).

The ppm meter would help out your soil grow, but
don't F'n worry about it right now...Just grow good
bud's and give details on how they were grown.

It's that simple dude.

Now Go grow....Go...