The perfect climate with VPD control
The VPD value (Vapour Pressure Deficit) describes how much the plant evaporates. If it is too high, there is a risk of dehydration. If it is too low, nutrient uptake stagnates. Calculate VPD with temperature and humidity. Ideal: 1.0-1.4 during flowering. Use VPD apps or tables. Adjust temperature and humidity together, not individually. This is the only way to keep the climate stable and the plants developing optimally.
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