Sand or volcanic glass which has been expanded by heat; perlite holds water and nutrients on its many irregular surfaces. Perlite can be used as a mineral soil amendment. Tobacco mosaic virus on tobacco.Related Articles: How to Grow Cannabis 231 - Blame the MediaAsk Me Anything: Women in CannabisMMAC - Los Angeles, CaliforniaUsing Perlite in Your Cannabis GrowRelated Terms:Term: MacronutrientsTerm: Mineral
Tobacco mosaic virus on tobacco.