Definition: RDWC, or Recirculating Deep Water Culture, is a hydroponic system where cannabis plants grow in oxygenated, nutrient-rich water.
Also called / Category:
Recirculating Deep Water Culture, Environment, Media & Nutrition
Key takeaways:
- RDWC involves growing plants in water rather than soil.
- The system is oxygenated and nutrient-rich, promoting faster plant growth.
- Commonly used in commercial cannabis cultivation due to efficiency.
- Requires precise monitoring of water quality and nutrient levels.
What it is / How it shows up:
RDWC is a term often encountered in growing manuals, cultivation guides, and product details for hydroponic setups. This system allows cannabis plants to grow with their roots submerged in a continuously circulating nutrient solution, providing them with direct access to water, oxygen, and nutrients. The recirculation aspect helps maintain consistent pH and nutrient levels, which are crucial for optimal plant health and growth. RDWC systems are popular in commercial cannabis operations due to their ability to support rapid plant development and high yields compared to traditional soil methods.
How it’s measured or identified:
- Nutrient concentration (PPM or EC levels)
- pH levels of the water
- Water temperature
- Dissolved oxygen levels
Use in context:
- "We switched to RDWC to improve our yield per square metre."
- "Managing pH levels in RDWC can be challenging but rewarding."
- "RDWC systems require regular maintenance to prevent algae growth."
Safety & compliance in Canada:
- Ensure all equipment is CSA-approved for safety.
- Follow local guidelines for water usage and disposal.
- Maintain compliance with offset-4 transition-colors hover:underline" title="Learn more about Health Canada">Health Canada's cultivation standards.
Related terms / See also:
FAQs:
- What are the benefits of using RDWC? RDWC offers faster growth rates, higher yields, and more efficient nutrient use compared to soil-based systems.
- Is RDWC suitable for beginners? While effective, RDWC requires careful monitoring and may not be ideal for first-time growers.
Sources:
- Health Canada
- PubChem