Venlo Glass Greenhouse for Cucumber Substrate Culture

Introdution
The Venlo-type glass greenhouse retains the same modular, gable-roofed Venlo design but uses high-quality glass (often tempered or float glass) as the covering. Its defining characteristics and advantages are:
- Optimal Light Transmittance: Glass provides exceptional clarity with light transmittance up to 95%, maximizing sunlight penetration—critical for high-light-demand crops like tomatoes, peppers, and roses, which thrive on intense, direct light.
- Long-Term Clarity & Maintenance: Glass has a smooth, non-porous surface that resists dirt, algae, and chemical buildup. This ensures consistent light transmission over time, requiring less frequent cleaning compared to PC boards.
- Structural Stability: Glass is rigid and robust, offering strong resistance to environmental stressors. It pairs well with large-scale Venlo designs, supporting extensive commercial operations where durability and longevity are priorities.
- Chemical Resistance: Glass is inert and unaffected by pesticides, fertilizers, or high humidity, making it ideal for environments with frequent chemical applications or high-moisture crops.

Support systems
- Enhanced Root Health: Substrates provide optimal drainage and aeration, reducing root rot risks common in overwatered soil. This promotes robust root development, critical for cucumber growth.
- Precise Nutrient Control: Nutrient levels and pH in substrates are easily adjusted, ensuring cucumbers get balanced nutrition—boosting fruit quality and yield consistency.
- Water Efficiency: Substrates retain moisture effectively while avoiding waterlogging, allowing targeted irrigation (e.g., drip systems) that cuts water use by 30–40% compared to soil.
- Reduced Pests/Diseases: Soil-borne pathogens (like fusarium) and pests (nematodes) are minimized, lowering pesticide reliance and keeping crops healthier.
- Space Flexibility: Lightweight substrates work well in greenhouses, vertical setups, or urban farms, maximizing growing space and making cultivation more adaptable to limited areas.
