Altaqua Grow Room Hvac
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We update this list of FAQs regularly so that we could give you the most updated information on all things Altaqua as best as possible.
grow room hvac faq as follow
1. What is Dew Point?
The dew point is the temperature at which air needs to be cooled to constant pressure to attain a relative humidity (RH) of 100% when air cannot hold more water in the gas form. If the air is cooled even more, water vapor will come out of the atmosphere in liquid form. That means if the dew point rises, there will be more moisture in the air.
You can learn more about dew point from this article https://altaqua.com/dew-point-control-hvac/
2. How to prevent Bud Rot?
Bud rot or gray mold is a botanical fungal disease. It comes from a fungus known as Botrytis Cinerea, a necrotrophic fungus affecting many plant species. When the environmental conditions become conducive, the mold rapidly rots the buds, leaves, and stems. So prevention is much more important than treatment. Here is a list of 7 tips to help you prevent bud rot.
- Inspect and assess your plants dail
- Isolating infected areas of plants
- Wearing protective gear before moving to grow room
- Sanitize all gardening equipment
- Inspect humidity and ensure adequate air circulate
- Choose to grow mold-resistant cannabis plants
- Spray fungicides at the flowering stage (Not recommend)
Want more information of identifying and bud rot prevention, view our blog https://altaqua.com/what-cause-bud-rot/
3. What is Relative Humidity？
Relative humidity, or RH, is a ratio of the amount of water vapor present in the air to the amount of water vapor the air could potentially contain at a given temperature. In other words, RH changes with the temperature changes as cold air cannot hold as much water vapor as warm air can. Properly managing the RH in your grow room is key to optimizing your yield and hence maximizing your profit.
If you want to know the ideal humidity in your cannabis grow room, read more https://altaqua.com/humidity-in-cannabis-grow-room/
4. How to ventilate my grow room?
The optimal method for ventilating your grow room involves implementing an exhaust system that removes stale, warm air from the top of the area or tent, while simultaneously drawing in cool, fresh air from the bottom. This allows the fresh air to flow upwards through the plant canopy. Depending on the dimensions of your grow space, you might also consider utilizing basic fans to facilitate air circulation.
5. How much airflow do plants need?
The amount of airflow that plants need in a grow room depends on various factors, including the size of the room, the number of plants, the temperature and humidity, and the ventilation system being used.
As a general rule of thumb, growers often recommend an airflow rate of around 1 cubic foot per minute (CFM) per square foot of growing space. For example, if you have a cannabis grow room that is 10 feet by 10 feet (100 square feet), you would need a ventilation system that can provide at least 100 CFM of airflow.
6. What is Vapor Pressure Deficit (VPD)?
VPD, the abbreviation of Vapor Pressure Deficit, is the difference between moisture present in the air and the potential for your indoor environment to hold more moisture. VPD is important because it directly relates to our plant’s transpiration rates. By controlling the VPD, growers can regulate the water quantity and nutrients available to the plant. It can affect plants' growth, yield, and quality.
VPD = Saturation Vapor Pressure (SVP) - Actual Vapor Pressure (AVP)
To get the perfect VPD for your plants, read more https://altaqua.com/vapor-pressure-deficit-vpd/
7. How much water should I give my plants?
The amount of water your plants need will depend on their size, stage of growth, and the type of growing medium you are using. As a general rule, you should water your plants when the top inch of soil feels dry to the touch.
8. How to control the odor in the grow room?
You can control the odor in your grow room by using a carbon filter or air purifier. These devices can help remove the odor-causing compounds from the air before it leaves your grow room.
9. How to prevent pests and diseases in my grow room?
You can prevent pests and diseases by maintaining a clean and sterile environment, using high-quality soil and water, and regularly inspecting your plants for signs of infestation. You can also use organic pesticides and fungicides as a last resort.
10. What kind of grow light should I use in my grow room?
Different types of lighting can be used in a grow room, but the most common are high-intensity discharge (HID) lights and light-emitting diodes (LEDs). HID lights provide a lot of heat and are suitable for larger grow rooms, while LEDs are more energy-efficient and produce less heat.
11. How far should my LED grow light be above my plants?
The ideal distance for LED grow lights above plants can vary depending on the light's power. Generally, keep them 12-24 inches (30-60 cm) above the plants. Always check the manufacturer's recommendations and adjust based on your plants' response.
12. How can I identify nutritional deficiencies in my plants?
Nutritional deficiencies can be identified by observing the appearance of your plants. For example, a nitrogen deficiency may cause yellowing leaves, while a phosphorus deficiency may cause stunted growth. You can also use a nutrient testing kit to determine the exact nutrient levels in your soil.
13. How can I prevent and treat diseases in my grow room?
Prevention is key: maintain proper temperature and humidity levels, ensure good air circulation, and sanitize your grow room regularly. Treat diseases by identifying the specific issue and applying the appropriate treatment, such as fungicides or bactericides.
14. What are the ideal grow room temperature and humidity?
Maintaining proper temperature and humidity levels is crucial for growing high-quality plants, especially in indoor grow environments. Optimal conditions vary depending on the stage of growth, the following is a list of proper temperature and humidity in every stage
Ideal Temperature and Humidity
Temperature: 68-77°F (20-25°C) with lights on/59-68°F (15-20°C) with lights off Relative Humidity: 65-70%
Temperature: 71-82°F (22-28°C) with lights on/64-75°F (17-23°C) with lights off Relative Humidity: 40-70%
Temperature: 68-79°F (20-26°C) with lights on/59-70°F (15-21°C) with lights off Relative Humidity: 40-50%
Late Flowering Stagee
Temperature: 64-75°F (18-24°C) with lights on/59-66.2°F (15-19°C) with lights off Relative Humidity: 35-50%
15. How do I control the grow room temperature and humidity?
To control temperature and humidity levels in a grow room, you can use ventilators, air conditioners, heaters, dehumidifiers, humidifiers, and fans. Proper air circulation is also crucial to prevent mold and mildew. Monitoring these environmental factors regularly and adjusting equipment as needed.
A grow room integrated system may help you to control the temperature and humidity all year round.
16. What are the signs of powdery mildew and how to prevent it?
Signs of powdery mildew in plants include white or grayish powdery substance on the leaves, stems, and buds of plants, yellowing or browning of leaves, and stunted growth.
To prevent powdery mildew, it's important to maintain a clean and healthy growing environment. This includes providing proper ventilation, avoiding overwatering, keeping humidity levels low, and using disease-resistant strains. You can get more tips of treatment for powdery mildew on cannabis.