Module 0 — System Overview & Targets (pH/EC)
Goal: run nutrition like a controlled system, not guesswork. Stable pH + sensible EC = uniform crops.
Core concepts
- pH affects nutrient availability (too high = iron/manganese lockout).
- EC is “total salts” (too high = burn; too low = starvation).
- Container media changes fast; you must monitor and adjust.
Target mindset
- Pick one target range per crop group (acid lovers vs “normal”).
- Standardize media and fertilizer products before you optimize.
- Make small changes and track results.
Deliverable: Choose preliminary target ranges for pH and EC for: (A) acid lovers (azalea), (B) general shrubs.