Well I was looking under this one plant and what it yields and it says "Yield: 350-500 p.s.m." What does p.s.m. mean?
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Well I was looking under this one plant and what it yields and it says "Yield: 350-500 p.s.m." What does p.s.m. mean?
Per square meter?
just guessing.
grams per square meter
that sounds like an outdoor yield
mind that that is under optimal conditions and is no guarantee of performance.