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Temperature and humidity

KrautBauer
KrautBauerstarted grow question 3 years ago
Currently I have a temperature of 20.1 - 20.5 degrees Celsius and a relative humidity of 44% - Are these values OK? If humidity is too low, what are the best ways to increase humidity?
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toxicswine462
toxicswine462answered grow question 3 years ago
I suggest you to look up for a VPD chart. Vapor pressure deficit is a value with which you measure the right transpiration of the plant. With that chart you'll know what humidity you should have with a given temp and vice versa to give the plant the best transpiration possible in the stage you are in. Best way to raise the humidity is a humidifier of course, if you can't afford it, place a bowl of water in the tent and/or place a dome on your seedling so the moisture of the soil remain in the dome.
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Chow_13
Chow_13answered grow question 3 years ago
Humidity is a bit low, but at your stage I would recommend removing the humidity dome's once you see your green leaves. The high humidity and lack of air circulation can cause a common fungal disease called damping off. Easiest way to increase humidity is to fill a black bucket with water and have a fan blowing over the top. If you add a black cloth over the edge but hanging in the water it will wick up the water and evaporate it quicker. But change the cloth regularly as it can start to grow bad things. Happy Growing.
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Slutty
Sluttyanswered grow question 3 years ago
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CRiSPrGrow
CRiSPrGrowanswered grow question 3 years ago
Hey there , right now you're a bit too cold and a bit too dry. Especially for seedlings you want to be a bit above where you are now. So that' s why you have the humidity domes. That's the right idea, it will be much more humid and warmer under there than on the surface of the pot. At some point or another though you're going to need to take that off. One thing you can do is use an evaporative cooler. It will raise the humidity hopefully enough. If you're not into getting more kit, try just spraying them with water up to seven times a day and water + cal mag twice a week. it will help quite a lot. For the temperature, it will naturally rise as the tent fills up, but if not one thing you can do is turn off your intake fan (always keep the exhaust) . Otherwise dont sweat it just focus on trying to keep the humidity up by spraying until first or second week of flower. Hope this helps ! 🚀
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Canna0022
Canna0022answered grow question 3 years ago
The recommended temps and humidity are: Seedling- 71°F -80°F Humidity 65%-80% Veg: 71°F- 79°F Humidity 40%-60% Flowering: 65°F-79°F Humidity 40%-50% The best way to increase humidity is by either placing a small bowl of water in your tent or a damp sponge. Just be careful as too much moisture can create mold. Good luck with your grow!
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