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Greenhouse Irrigation Systems Contrasted
Greenhouse Irrigation Systems Contrasted

Learn the benefits of each different type of irrigation system.

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Written by Jerad Lauzier
Updated over a week ago

Good greenhouse irrigation needs to be cost-effective, have efficient water usage, and ensure uniform application of water to the plants. Irrigation systems for greenhouses can be manually operated, but automated systems will manage irrigation more effectively, making sure that plants are watered with a consistent amount on a regular schedule, with reduced labor inputs. Hand watering is rarely done in commercial greenhouses because even small growers can find semi-automated systems for a reasonable price.

Types of Greenhouse Irrigation

Irrigation System

Uses

Benefits

Drip Tape

Delivers water in small amounts directly to roots via flat polyethylene hose with perforations

Convenient for stationary plants and delivering fertilizer, conserves water

Drippers

Similar to drip tape but the tape is buried, direct delivery of water to roots

Blocks UV rays from the sun from deteriorating plastic tape

Overhead Sprayers and Booms

Used with mature plants; Does not conserve water- only about 20% of water sprayed reaches plants

Useful for multiple zoned greenhouses and semi-automation

Manual Watering

Water delivered by hand through hoses or watering cans, labor-intensive

Allows for direct oversight

Capillary Mats

Mats that fill with water, water is pulled up into the soil to the roots; Best for potted plants grown on benched

Low waste and avoids overwatering

Misters

Hoses connect to nozzles that produce a fine mist of water over plants; For watering during propagation

Keeps cuttings and seedlings cool and provides irrigation

Ebb and Flow Tables or Flood Floors

Provides uniform sub-irrigation with water recapture and reuse; Ebb and flow tables are also used as hydroponic systems

Conserves and recycles water and avoids overwatering

Hydroponic Systems

Plants are grown in a non-soil medium that secure the plant in place in a container circulated with water and nutrient solution

No additional irrigation needed

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