VPD: Vapor Pressure Deficit or Very Pointless Distraction?
If you’ve bought a new inline fan with app support lately or been looking at new gear, you’ve most likely seen VPD pop up, promising new insights into plant growing and another level of environmental understanding and control. I came across it a couple of years ago when I bought my first Vivosun E42A controller. […]
VPD: Vapor Pressure Deficit or Very Pointless Distraction? Read More »







