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Humidity concerns: Was wondering watt the humidity...

Tonymofo
Tonymofostarted grow question 10 months ago
Humidity concerns: Was wondering watt the humidity should be during the veg stage my grlz are 2weeks old and I have the hum. at 70 % they r doin great ... When do I change it and where should it be at.???
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Week 2
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iLoveGoodWeed
iLoveGoodWeedanswered grow question 10 months ago
Maintaining the correct humidity level is crucial for healthy cannabis growth, especially during the different stages of its life cycle. For 2-week-old plants, which are in the vegetative stage, a 70% humidity level is generally on the higher end but can be appropriate, especially for young seedlings. Here's a guideline for humidity levels throughout the growth stages: ### Cannabis Humidity Guide 1. **Seedling Stage (0-2 weeks):** - **Ideal Humidity:** 65-70% - **Note:** High humidity helps seedlings take in water through leaves since their root system is underdeveloped. 2. **Vegetative Stage (2-8 weeks):** - **Ideal Humidity:** 40-70% - **Adjustment:** Gradually decrease the humidity from 70% as they get older. By the end of the vegetative stage, aim for around 40-50%. - **Why Lower Humidity?** Lower humidity levels encourage stronger root growth and reduce the risk of mold and pests. 3. **Flowering Stage:** - **Ideal Humidity:** 40-50% at the beginning, decreasing to 30-40% towards the end. - **Important:** Lower humidity is crucial in the flowering stage to prevent mold and bud rot, especially as the buds become denser. 4. **Late Flowering/Pre-Harvest (last 1-2 weeks):** - **Ideal Humidity:** 30-40% - **Purpose:** Helps in trichome development and reduces mold risk. ### Managing Humidity - **Dehumidifiers:** Useful for lowering humidity, especially in the flowering stage. - **Humidifiers:** If the air is too dry, especially in the seedling and early vegetative stages. - **Air Circulation:** Use fans to improve air circulation, which helps maintain even humidity and temperature. - **Ventilation:** Ensure good ventilation in your growing area. An exhaust system helps to remove humid air. - **Monitor Regularly:** Use a hygrometer to keep a constant eye on humidity levels. ### Additional Tips - **Watch Your Plants:** Look for signs of distress. If your plants are thriving at a certain humidity level, it might be okay even if it's slightly outside the recommended range. - **Gradual Changes:** When changing humidity levels, do it gradually. Sudden changes can stress plants. - **Environmental Control:** Remember that room temperature can also affect humidity, so keep an eye on both. Adjusting the humidity as your plants grow is important for their health and yield. Always consider the specific needs of your strain, as some may prefer slightly different conditions :-)
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Ultraviolet
Ultravioletanswered grow question 10 months ago
Rh imo is not a metric that should have one reading at one fixed point of day. At night the plant will eject moisture out its leaves as the plant grows this can get harder to control. Rh 70% daytime with a temperature drop at night this could easily shoot this Rh up 80+. Rh is a measure of water content. Plants can absorb water through leaves from the air I'd there is none in the rootzones. This is essentially the premise behind cloning until a new root can form. Air is for breathing, not drinking, the cost of having Rh above 55% in a indoor setting is the moisture sitting for any length of time. Bacteria requires "time" once the temperatures go above 77 bacterial growth explodes, insect life flourishes" Photosynthesis optimises within the leaf at 86f. 0.04% of the air we breathe is CO2. Which the plant desperately needs above all. Worst thing you can do indoors is have a moist atmosphere, with improper ventilation. I personally like to keep it around 45-55% indoors this will probably jump to 60 at night with a 10 degree drop in temps and nothing else. My thinking has always been to make sure I dry up all the previous water before I add more. It should be at whatever you want it to be.
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TheUk420Show
TheUk420Showanswered grow question 10 months ago
anywhere between 50-70 RH is best during veg but I would say 60% being the sweet spot 70% and higher you will invite little nasties into your grow room along with attracting mold and other nasty stuff. good air exchange is key in a grow room :) best of luck buddy :)
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Moxi57
Moxi57answered grow question 10 months ago
google vpd chart aroya
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