Tag: pressure

Growing

Managing VPD for Cannabis
The vapor pressure deficit (VPD) is the difference between the moisture currently in the air and the maximum moisture it can hold when saturated. As we discussed in our previous blog post, VPD is an important parameter to measure and control because it directly influences plant transpiration. In this blog post, we’ll explain how to determine the VPD of the grow room using temperature and humidity, the ideal VPD levels for cannabis and the equipment needed to monitor and adjust VPD. Measuring …
Growing

Understanding Vapor Pressure Deficit
In our previous blog post, we talked about the importance of plant transpiration and how to ensure plants transpire at an ideal rate for optimal growth. One way that growers can determine if the right amount of transpiration is occurring is by measuring the vapor pressure deficit (VPD).VPD indicates the air’s moisture saturation level. Lower moisture in the air allows more plant transpiration, while higher saturation reduces it. In this post, we’ll explore how VPD works, its impact on plant …
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