£25.00 £22.00 (°Rebajado!) (Aprox. €25.93 )
This book by Michael Starks is a comprehensive book covering marijuana constituents and their effects, variations in THC and CBD content, growth conditions and potency, harvesting and preparation of marijuana and hashish, extraction of THC, isomerisation, seed variations, grafting, cloning, bonsai marijuana plants and other special techniques.
Essential for those that want to know more about marijuana and its chemical properties.
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