Dr. Greenhouse VPD Calculator 4+

Calculate your VPD

Dr Greenhouse Inc

    • Free

Screenshots

Description

Welcome to the Dr. Greenhouse VPD App!

With this tool, you can easily calculate the Vapor Pressure Deficit of your grow room’s air.

First, choose your temperature units: Fahrenheit or Celsius. Then plug in the air temperature and relative humidity and click “Calculate.” The resulting VPD (kPa) will be color-coded to indicate whether the grow room climate is humid (blue), vegetative (green), reproductive (yellow), or dry (purple).

The desired VPD depends on the type of plant, its stage of growth, and, in some cases, the time of day. In general, leafy greens, microgreens, and other non-flowering plants enjoy a “vegetative” environment. Flowering and fruiting plants benefit from a “reproductive” environment. Cannabis plants may yield more trichomes and terpenes, if exposed to a “dry” and water-stressed environment in the days leading up to harvest. And a “humid” nighttime environment can improve translocation of nutrients and metabolites to strawberries and other fruiting plants.

What’s New

Version 2.0

Version 2.0 of the VPD Calculator includes the following changes and new features:
- Improved user interface
- New leaf temperature
- based VPD calculator
- New RH calculator based on target VPD

App Privacy

The developer, Dr Greenhouse Inc, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary based on, for example, the features you use or your age. Learn More

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