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Grower Diaries
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Entry Date
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Friday, April 26, 2024
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Vineman
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Eugene,OR
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Entry 59 of 77 |
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What’s your VPD? Vapor Pressure Deficit: the difference between the amount of water vapor that is in the air and the maximum amount of vapor the air can hold before it is saturated. As the temperature rises the air can hold more vapor. As it falls it can hold less. Ideally when we are growing plants we want to provide them with a VPD between .8 & 1.1. I had never thought about this before I started learning about CO2. I did know that young plants like warm humid conditions. Now I have a target to shoot for!
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