More efficient land use: The extended length of semi-closed greenhouse bays and improved air distribution uniformity increase land utilization. By regulating indoor positive pressure, the intrusion of pests and pathogens is reduced, strengthening disease prevention capabilities.
Semi-closed greenhouses demonstrate 20-30% higher energy efficiency compared to conventional greenhouses by reducing heat loss through positive pressure ventilation. They maintain stable CO₂ levels at 800-1200ppm (compared to just 500ppm in conventional greenhouses). The uniform environment boosts yields by 15-30% for crops like tomatoes and cucumbers, while the positive pressure design blocks pests, reducing pesticide use by over 50%. The multi-span structure with 250-meter spans increases cultivation area to over 90% (versus 70-80% in conventional greenhouses), and IoT automation saves 20-40% in labor costs. The recirculating ventilation system combined with drip irrigation achieves 30-50% water savings and extends annual production cycles by 1-2 months. Although requiring higher initial investment, these greenhouses offer significant long-term benefits, making them particularly suitable for high-value crops and extreme climate regions.
Post time: May-27-2025