single span greenhouse disadvantage and advantage

The construction investment per unit of facility area in a single span greenhouse is the lowest. However, the investment in heating and ventilation systems is higher in single span greenhouses because each greenhouse needs to have separate heating and ventilation equipment. Once the total production area of the greenhouse exceeds 05 acres, the cost of labor and mechanization of production in single span greenhouses is usually higher than in continuous greenhouses because it is difficult, though not technically impossible, to transport crops in single span greenhouses using equipment such as rails, conveyor belts, and mobile cutting beds.

. Single-span greenhouses take up more land than continuous greenhouses because space must always be left between each greenhouse, and if the building site is a valuable building land resource, the low-cost advantage of a single-span greenhouse compared to the land-saving advantage of a continuous greenhouse is close to nothing when determining the greenhouse form for the remaining building site after all the other individual building facilities that must accompany it have been planned and laid out.

If crop production requires a high level of greenhouse environmental control and operational automation, such as the production of bedding plant hole seedlings, a continuous greenhouse may be considered.

When pests or diseases are encountered, they are easily isolated using a single span greenhouse.

If the field layout needs to be changed, a single span plastic greenhouse is easier to relocate than a continuous greenhouse.