1st Stage - Seedling
In the seedling stage of cannabis cultivation, it’s essential to maintain a warm environment with temperatures between 70-75°F (21-24°C) and high humidity levels around 70-80%. Low-intensity LED lights should be positioned 18-24 inches above the seedlings to provide gentle illumination. Watering should be done with a fine mist to keep the soil consistently moist but not waterlogged. Start with a mild, well-balanced nutrient solution suitable for seedlings and gradually increase its strength as they grow.
- Temperature:
- Maintain a comfortably warm environment.
- Ideal range: 70-75°F (21-24°C).
- Humidity:
- Keep high humidity levels.
- Ideal range: 70-80%.
- LED Lighting:
- Use low-intensity LED lights.
- Position lights 18-24 inches above seedlings.
- Watering:
- Employ a fine mist to water.
- Keep soil consistently moist, avoid waterlogging.
- Nutrients:
- Start with a mild nutrient solution suitable for seedlings.
- Gradually increase strength as they grow.
2nd Stage - Vegitation
During the vegetative stage of cannabis cultivation, maintaining a moderate temperature between 70-85°F (21-29°C) is crucial. As plants grow larger, it’s important to gradually reduce humidity levels to 40-60%. High-quality LED lights, optimized for vegetative growth, should be used, providing 18 hours of light per day. Watering should be done when the top inch of soil feels dry, with good drainage to prevent waterlogging. Finally, transition to a nutrient mix that is higher in nitrogen to support vigorous vegetative growth.
Temperature:
- Maintain 70-85°F (21-29°C) during vegetative stage.
Humidity:
- Reduce gradually to 40-60% as plants grow.
LED Lighting:
- Use high-quality LEDs with vegetative growth spectrum.
- Provide 18 hours of light daily.
Watering:
- Water when top inch of soil is dry.
- Ensure good drainage to prevent waterlogging.
Nutrients:
- Use nutrient mix high in nitrogen for vigorous growth.
3rd Stage - Bloom
In the bloom stage of cannabis cultivation, it’s important to maintain a stable temperature between 68-75°F (20-24°C) and lower humidity levels to 40-50% to minimize mold risk. The light cycle should be adjusted to 12 hours of light and 12 hours of darkness, using LED lights with a spectrum optimized for flowering. Watering frequency should be reduced, but the amount per watering increased, allowing the soil to dry slightly between waterings. Finally, transition to a nutrient mix higher in phosphorus and potassium to support robust flowering.
Temperature:
- Keep stable at 68-75°F (20-24°C) during flowering stage.
Humidity:
- Lower to 40-50% to reduce mold risk.
LED Lighting:
- Adjust to 12 hours light/12 hours darkness.
- Use LEDs optimized for flowering.
Watering:
- Reduce frequency, increase amount per watering.
- Let soil dry slightly between waterings.
Nutrients:
- Transition to mix higher in phosphorus and potassium for flowering.
Conclusion
Air Circulation:
- Ensure good air flow, crucial with low-heat LED lights.
pH Level:
- Monitor and maintain pH between 5.8-6.5 for water and nutrients.
Training Techniques:
- Use low-stress training (LST) and similar methods during vegetative stage in LED environments.
Harvest Timing:
- Harvest based on trichome color; cloudy for balanced high, amber for relaxation.
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