How to Improve Greenhouse Ventilation for Better Plant Growth?

1. Why Ventilation is Important for a Greenhouse?

Proper ventilation helps to:

• Regulate temperature and humidity inside the greenhouse.
• Improve CO₂ exchange for better plant photosynthesis.
• Reduce pest and disease risks by maintaining air circulation.

2. Common Greenhouse Ventilation Methods

Ventilation Type	Features	Efficiency	Cost
Natural Ventilation	Uses roof & side vents, relies on wind & thermal lift	Medium	Low
Mechanical Ventilation	Uses exhaust fans & intake fans to regulate airflow	High	Medium
Hybrid Ventilation	Combination of natural + mechanical for optimized airflow	Very High	High

3. Best Ventilation Setup for Different Greenhouse Types

1. Small Greenhouses → Natural ventilation with roof vents is sufficient.
2. Medium Greenhouses → Hybrid ventilation with circulation fans improves efficiency.
3. Large Commercial Greenhouses → Mechanical ventilation with automated climate control.

Comparison of Greenhouse Ventilation Methods