Design & Structural Advantages
Scientific Layout for Large-Scale Cultivation
- Spatial Planning: The 4.5-meter column height provides ample vertical space for rose climbing, ventilation, and mechanized operations. The 10-meter bay width and 4-meter ridge spacing ensure uniform light distribution while maximizing land utilization, supporting high-density, standardized rose planting.
- Structural Stability: Constructed with hot-dip galvanized steel frames, the greenhouse meets local wind and snow load resistance standards for Yunnan, effectively mitigating extreme weather risks and providing a long-term stable environment for perennial rose growth
Specialized Covering Material for Optimal Photosynthesis
The greenhouse is covered with rose-specific plastic film, which features high light transmittance and light diffusion properties to ensure even illumination and avoid leaf burn from intense direct sunlight. It also offers excellent thermal insulation and weather resistance, reducing heat loss and extending service life to maintain consistent light and temperature conditions for roses.
Intelligent Supporting Systems for Precision Management
Automatic Internal Shading System
Equipped with a fully automatic internal shading system, the greenhouse adjusts shading coverage based on real-time light intensity and temperature data:
- During high summer temperatures, it blocks excess sunlight to lower internal temperatures and prevent petal scorching.
- In winter or overcast conditions, it partially retracts to maximize natural light for photosynthesis while minimizing nighttime heat loss.
Heating System
To counter Kunming’s winter low temperatures and late spring cold snaps, an efficient heating system maintains optimal growing temperatures (15–25°C for roses), eliminating frost damage and enabling year-round production free from seasonal constraints.
Automatic Fertigation System
A rose-specific intelligent fertigation system delivers precise irrigation and nutrient delivery:
- It automatically formulates nutrient solutions and dispenses them at scheduled, measured rates based on soil moisture, plant growth stage, and nutrient requirements.
- This minimizes water/fertilizer waste, improves nutrient uptake efficiency, and reduces risks of fertilizer burn or waterlogging from manual operation, promoting robust plant growth and enhancing cut flower quality and yield.
Project Value & Benefits
By integrating modern multi-span greenhouse technology with intelligent control systems, this project achieves standardized, intensive, and intelligent rose production:
- Yield Improvement: Unit yield increases by over 30% compared to traditional greenhouses, with more consistent cut flower quality and longer vase life.
- Cost Optimization: Intelligent systems reduce labor and water/fertilizer consumption by 50%, significantly lowering overall operational costs.
- Industry Demonstration: As a benchmark for large-scale rose cultivation in Kunming, it provides a replicable technical model for upgrading the local flower industry and bolstering Yunnan’s reputation as a “World Garden.”
Conclusion
The Kunming Rose Multi-Span Greenhouse Project exemplifies the deep integration of modern protected agriculture and specialty floriculture. We continue to advance intelligent greenhouse technology, offering end-to-end solutions from design and construction to operation and maintenance, enabling efficient, sustainable production of high-quality agricultural products.
