Greenhouses for Seedlings

seeds greenhouse apr

A nursery is a place where the horticultural crops are planted. It is an area of land preparation and conditioning especially for placing the seeds in order to produce the best germination conditions and care, so it can grow without difficulty until the plant is ready for transplanting.

 

Normally seedlings consist of production greenhouses due to the high climatic requirements in the early developmental stages of horticultural crops, so climate control is essential in this type of production.

A nursery is divided into the following areas:

Area sown.

Usually located in a warehouse, where the operation is seeding is done by hand or automated machinery.

Germination chambers.

Cameras are being conditioned for the germination of seeds.

Greenhouse production.

Once germinated, seedlings production transferred to the greenhouse, where they grow until they meet the conditions for transplantation.

Acclimatization areas.

This is an area whose purpose is to prepare the seedlings for field conditions to which they will be subjected. It can be performed in the same production greenhouse or adjacent to this.

Greenhouses for seedlings

The type recommended for seed Greenhouses are Polytunnel type in their variants:

  • Gothic Greenhouses
  • Asymmetric or Tropical Greenhouses
  • Chapel Greenhouses

Since the conditions of radiation, temperature and relative humidity must be controlled optimally to generate the best possible weather conditions for the development of seedlings, and these greenhouses provide the best features for this:

  • Large volume of air.
  • Allows mechanized farming inside.
  • Good ventilation.
  • High tightness.
  • Allows installation of roof, perimeter and forced ventilation facilities.
  • Good light dristribution inside the greenhouse.

Technology associated

Production system:

Cultivated on substrates, in alveoli piramidal conical or tubular trays, facilitating handling and transplanting seedlings.

Cooling systems:

Shade and Thermal Screens, forced ventilation, cooling and fog system.

Heating systems:

Closed systems of hot water pipes or hot air vents systems. Preferably placed under the planting trays to raise the temperature of the roots.

Irrigation Systems:

Irrigation travellers, sprinkler or microsprinkler-inverted systems are usually used.

Slide rail systems:

Used when the cultivation act takes place in trays, they act as cultivating table (no background). It helps at work at the same time, so the trays slide easily on them.