Greenhouse Accessories: The Overlooked Technological Cornerstone, Silent Heroes of Smart Agriculture
When we marvel at the vast, impressive rows of greenhouses in modern agricultural parks, our gaze is often drawn to their grand structures. Yet, what truly breathes life and intelligence into these buildings are the seemingly insignificant “accessories” scattered throughout. They serve as the joints, blood vessels, nerves, and muscles of the structure, working in concert to transform cold steel and plastic film into a precisely controlled “paradise for crop growth.” Understanding these accessories is to grasp the essence of modern facility agriculture.
Beyond “Parts”: Accessories as Integrated Functional Systems
Greenhouse accessories should not be viewed in isolation but as components of multiple highly coordinated subsystems.
1. Structural Fastening System: The Cornerstone of Safety
This forms the foundation of the greenhouse's resistance to wind and rain. The system includes:
Core Load-Bearing Components: Hot-dip galvanized columns, arches, and trusses. Their strength and corrosion resistance determine the greenhouse's lifespan.
Critical Connectors: Specialized bolts, spring clamps, and arch pipe connectors. The quality of these components directly impacts the overall structure's stability and resistance to wind and snow. A single substandard bolt can lead to catastrophic collapse.
Foundation Anchors: Screw piles or concrete foundation embedments, functioning like a tree's root system to ensure the greenhouse is firmly anchored to the ground.
2. Environmental Control System: Director of Climate
This is the most technologically advanced component, serving as the greenhouse's “central nervous system.”
Sensing Layer (Sensors): Temperature/humidity probes, light sensors, CO₂ monitors, soil moisture meters. These act as the system's “eyes” and “ears,” continuously collecting environmental data 24/7.
Actuator Layer (Drives): Electric film rollers, rack-and-pinion window motors, external shading drives, circulation fans, solenoid valves. These components receive commands, acting as the “hands and feet” that execute specific actions like ventilation, shading, and irrigation.
Control Layer (Brain): Environmental control computers or PLC controllers process sensor data and issue precise instructions to the execution layer based on preset models, enabling fully automated regulation.
3. Fertigation System: The Crop Nutritionist
This system integrates irrigation and fertilization for precise nutrient delivery.
Purification and Mixing Unit: Disc or mesh filters, venturi fertilizers, electric fertilizer pumps, and mixing tanks ensure clean, uniformly blended water and fertilizer.
Precision Delivery Unit: PE main pipes, PVC branch pipes, pressure regulators, and solenoid valves form an efficient, stable delivery network.
End-Point Delivery Unit: Drip tapes, drip emitters, and micro-sprinklers deliver water and nutrients directly to plant roots like “intravenous injections.”
4. Internal Logistics & Support System: The Art of Space Utilization
Maximizes every inch of space while providing optimal growth posture for crops.
Mobile Seedling Bed System: Comprising bed frames, rollers, and aluminum alloy borders, this system achieves over 80% greenhouse space utilization while facilitating operations.
Plant Suspension System: Polyester suspension ropes, growth clips, and vine guides direct tomato, cucumber, and other vine crops to grow vertically, ensuring full light exposure and ease of management.
