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Entry Date
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Location
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Monday, April 07, 2025
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Vineman
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Eugene,OR
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Entry 35 of 46 |
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VPD, or Vapor Pressure Deficit, is a measure of how much moisture the air can hold at a given temperature. Plant growth speeds up considerably at higher temperatures because transpiration increases as the plant’s way of keeping moisture on the surface of its leaves. Basically, the plant pulls moisture out of the soil (also bringing nutrients along for the ride) up through its vascular system in order to keep its leaves properly hydrated. This means that you get faster growth! Understanding VPD & its relationship to a plant’s ability to undergo photosynthesis is the key to growing anything to its potential. Any giant vegetable grower who does not understand this concept and doesn’t do their best to use this to their advantage is missing out!
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