VPD calculator app for indoor grows and greenhouses
Added on 26 May 2022
Image Courtesy of Urban Ag News
Dr. Greenhouse, Inc., a leading provider of state-of-the-art HVAC design and controls solutions for indoor grows, vertical farms and greenhouses, has launched the Dr. Greenhouse VPD Calculator App. The VPD Calculator app helps growers understand their indoor grow environment and its effect on plant responses and HVAC equipment operation.
"Our website VPD calculator is the most visited resource on our website. Our team decided to build a mobile VPD Calculator App for growers and farmers to quickly calculate their environment's VPD," notes Dr. Nadia Sabeh, President of Dr. Greenhouse, Inc. "It is critical to know the best environment for plant steering and health to ensure optimal crop outcomes and timing are achieved."
Vapor pressure deficit (VPD) represents the "pressure" that air puts on the plant to transpire and move water and nutrients from the roots to other parts of the plant. For example:
ˇ With low humidity and high VPD levels, there is more pressure on the plant to transpire and use more water. If plants are not well-watered under high VPD levels, they may begin to wilt.
ˇ With low humidity and low VPD levels, there will be less pressure on the plant to transpire. If plants are over-watered under low VPD levels, they are prone to pest pressures.
The VPD can be a valuable metric for growers to predict water use, steer crops for optimal growth, and operate HVAC equipment to achieve the desired indoor plant environment.
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Source: Urban Ag News
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