HIGH
Increase EC to 1.6–2.0 for early flower nutrient demand
Details
Category: Nutrition
Why: Flower transition increases nutrient demand; current EC likely insufficient for bloom ramp
Monitor: Runoff EC and leaf tip burn
HIGH
Maintain VPD at 1.0–1.3 kPa during light hours
Details
Category: Environment
Why: Optimal VPD reduces transpiration stress and supports nutrient uptake during stretch
MEDIUM
Begin defoliation of lower canopy within 3–5 days
Details
Category: Training
Why: Removing lower growth improves airflow and redirects energy to top colas
MEDIUM
Check pH daily — target 5.8–6.2 in root zone
Details
Category: Nutrition
Why: pH drift is common during transition; consistent monitoring prevents lockout