Definitions for the key terms, metrics, and concepts used in indoor cultivation — 8 terms
A natural growing medium derived from coconut husks. Popular in hydroponics for its excellent water…
The cumulative amount of photosynthetically active light received per unit area over 24 hours,…
A measure of dissolved mineral salts in a nutrient solution, expressed in mS/cm. Used to gauge…
The three primary macronutrients for plant growth: Nitrogen (N), Phosphorus (P), and Potassium (K).…
A scale from 0 to 14 measuring acidity or alkalinity of a solution. Optimal pH in the root zone…
The number of photons in the PAR range hitting a surface per second, measured in μmol/m²/s. The…
A unit measuring nutrient concentration in solution. 1 PPM equals 1 mg per litre. Commonly used…
The difference between the moisture the air can hold when saturated and the amount it currently…