Integrated technology for consistent cultivation

Effective crop steering starts with matching the environmental conditions to the crop's light demand. We consider PPFD distribution across the canopy, Daily Light Integral (DLI), photoperiod, CO₂ concentration, temperature and VPD together rather than treating them as independent setpoints.

For example, increasing PPFD changes the crop's photosynthetic potential, transpiration demand and the room's thermal load. CO₂ enrichment must be evaluated alongside light intensity and temperature, while cooling and dehumidification capacity must accommodate the resulting operating conditions.

The objective is not simply to reach individual setpoints, but to create a balanced growing environment that can be maintained throughout the cultivation cycle.

Crop steering involves applying vegetative or generative influences through the growing environment and root-zone management.

Beyond temperature, VPD, PPFD and CO₂, irrigation strategies use substrate water content (WC%), electrical conductivity (EC), irrigation timing and dry-back to influence plant development.

The P1, P2 and P3 irrigation phases help growers manage substrate re-saturation, daytime EC and water content, and overnight dry-back.

These strategies have direct implications for equipment selection, sensor placement, irrigation controls and the required cooling and dehumidification capacity. Our approach is to consider these relationships during technical planning, including future irrigation and fertigation integration.

Relative humidity does not fully describe the conditions driving plant transpiration. Vapour Pressure Deficit (VPD) combines temperature and humidity, while leaf-to-air VPD also accounts for the temperature of the canopy.

Because leaf temperature can differ from room temperature, two facilities with identical air temperature and relative humidity can expose their plants to different transpiration conditions.

We therefore consider VPD, canopy temperature, airflow and the stability of climate control when evaluating cultivation environments.

When grow lights switch off, heat input drops while plants continue releasing moisture. Maintaining temperature and humidity simultaneously can therefore be challenging for conventional cooling systems.

The Revomax II automatically switches between day and night settings, managing cooling, heating and dehumidification according to the required conditions. Its ability to dehumidify while heating helps prevent unwanted temperature drops.

Additional functions such as Slow Cooldown and Pre-Heat allow controlled transitions between light cycles, supporting consistent growing conditions and more precise crop steering.

Effective humidity control requires more than maintaining a fixed relative humidity setpoint.

We consider moisture loads, air distribution, canopy temperature, dew point and humidity peaks, particularly during lights-off transitions and periods of dense plant growth.

Appropriate dehumidification capacity, stable climate control and effective air circulation can reduce condensation risk and prolonged exposure to excessive humidity.

These measures support a healthier growing environment, although disease prevention also depends on cultivation practices and hygiene.