How We Are Using Undercanopy Lighting In Our Grow Rooms!

About this video

• Video Title: How We Are Using Undercanopy Lighting In Our Grow Rooms!
• Channel: Craft Farmer
• Speakers: None explicitly named, but a single narrator.
• Duration: 00:12:58

Overview

This video details the strategy and implementation of undercanopy lighting in grow rooms. The narrator explains how these lights are used to supplement light in the lower canopy of plants, promoting better bud development and overall yield. The video also covers the optimal timing for introducing undercanopy lights, plant work adjustments, environmental considerations, and nutrient management when using this lighting technique.

Key takeaways

• Strategic Undercanopy Lighting: Undercanopy lights are used to provide light to the lower parts of plants that previously received insufficient light, aiming to increase yield and produce higher quality product.
• Timing and Plant Work: These lights are typically turned on around day 16, coinciding with the beginning to middle of week three of the flowering stage. Plant work is adjusted to balance leaf and bud sites, retaining foliage around developing buds in the lower canopy.
• Environmental Management: The introduction of undercanopy lights increases the heat load in the grow room, requiring careful monitoring and adjustment of temperature, air movement, and humidity.
• Nutrient Management: With increased transpiration due to undercanopy lighting, runoff EC levels can rise quickly. The strategy involves starting with a slightly lower EC and adjusting as needed throughout the growth cycle, particularly managing salt buildup.
• Historical Precedent: The concept of underlighting is not new, with historical examples like Dutch tomato growers using reflective materials to bounce light into the lower canopy, demonstrating its long-standing effectiveness.