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Multi Span Poly tunnels (turnkey/ customized greenhouse project)

Multi Span Poly tunnels (turnkey/ customized greenhouse project)

Multi-span poly tunnels are also referred as High Tunnels greenhouse structures designed with multiple connected arched frames covered with poly-film or Plastic Film.

Meaning/Definition

Multi-span poly tunnels are High tunnels agricultural greenhouse structures made of dome shaped frames designed from materials like galvanized steel or GI pipes. These frames are covered with a single or double layer of poly film, creating a tunnel-like structure. The “multi-span” aspect refers to the presence of multiple connected spans or sections within a single structure.

Common/ Referred names

These structures are also known as Dome Shaped/ Roof Multi Span tunnels, multi-bay poly tunnels, multi-span polyethylene tunnels, simply poly tunnels, Poly House for Vertical Farming,

High Tunnel Poly-House (Rain-Proof), Multi Tunnel Polyhouse, Polyhouse structure for blueberries farming and Rain Proof Multi Span Polyhouse structure.

Technical Specifications

  • Frame Material

    Typically constructed from durable materials like galvanized steel or PVC pipes, providing stability and strength to the structure.

  • Covering Material

    Poly- film, known for its transparency, durability, and ability to diffuse sunlight, is used to cover the frame. Some designs may feature double-layered films for enhanced insulation.

  • Span Configuration

    Multi-span poly tunnels consist of multiple connected spans or bays, allowing for scalability and flexibility in size and layout.

  • Irrigation

    Drip irrigation or overhead sprinkler systems can be installed to provide water directly to the plants.

  • Ventilation

    Manual or automated ventilation systems, such as roll-up side walls or ridge vents, are incorporated to regulate airflow and temperature within the tunnels.

  • Anchoring

    Secure anchoring systems, such as ground stakes or anchor plates, are used to ensure stability, especially in windy conditions.

Applications

  • Crop Production

    Multi-span poly tunnels are primarily used for the cultivation of various crops, including vegetables, fruits, flowers, and herbs. They provide a controlled environment that extends the growing season and protects crops from adverse weather conditions and pests.

  • Season Extension

    These structures enable farmers to start planting earlier in the spring and continue growing later into the fall, effectively extending the growing season.

  • Nursery Operations

    Multi-span poly tunnels are suitable for seedling production and nursery operations, providing a protected environment for germination and early plant growth.

  • Research and Education

    They serve as valuable tools for agricultural research institutions, universities, and educational facilities for studying crop production, climate management, and greenhouse technology.

  • Organic Farming

    Multi-span poly tunnels support organic farming practices by providing a protected environment for crops without the need for synthetic pesticides.

Description

Product Type: High Tunnels
Top Vent Type: Dome Type (Round type)
Available Size: 500 m2 / 1000 m2 / 2000 m2 / 4000 m2 / 8000 m2 / 12000 m2
Grid: 8 m x 3 m, 8 m x 4 m, customization available
Gutter center/Height: 2.0 m / 4.5 m, 2.5 m / 6.0 m, 3.5 m / 6.5 m
Hockey: 2.0 m
Side Covering: Insect net, 110 GSM, Polyfilm, Mono x Mono, Bird Net
Top Covering: Polyfilm, apron Fabric, Insect Net, Rain Protection
Second Layer: Inside Sliding Net cover available
Trellising System: 5 mm, 4 mm Rope wire with 3 mm Plastic wire
Drip irrigation: Inline drip irrigation system, Fogging or Sprinkler with filters.
Usage/ application: Vegetable Farming (Capsicum, cucumber, chillies, tomato etc.), Horticulture, Flower farming, Herbs cultivation, nursery farming, fruits farming (strawberries, blueberries, raspberries and other berries family etc.

Advantages

  • Cost-Effective

    Compared to traditional greenhouse structures, multi-span poly tunnels are often more affordable to construct and maintain.

  • Scalability

    The modular design allows for easy expansion or modification of the tunnel's size and layout to meet changing needs.

  • Versatility

    Suitable for a wide range of crops and growing conditions, providing flexibility for farmers to diversify their production.

  • Protection

    Offers protection from adverse weather, pests, and diseases, resulting in higher-quality crops and increased yields.

  • Season Extension

    Enables year-round cultivation and extends the growing season, enhancing farm productivity and profitability.

  • Energy Efficiency

    Natural ventilation and insulation properties of polyethylene film contribute to energy savings and reduced reliance on heating and cooling systems.

Conclusion

In summary, multi-span poly tunnels offer a cost-effective and versatile solution for crop production, season extension, and research, providing farmers with the means to optimize growing conditions and improve agricultural productivity.

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