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In this unit, you will learn about common greenhouse irrigation systems. You will also learn about common water quality problems and how to correct them.
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Greenhouse Crops Irrigation
- Water Management
- Water Quality Issues and Recommendations
- pH
- Alkalinity (bicarbonate level)
- Salinity
- Level of potentially phytotoxic ions (B, Cl-, F-, Na+, and SO4-)
- Iron
- Bacteria and fungi
- Algae
- Correcting Water Quality Problems
- pH and Alkalinity
- Salinity (E.C.)
- Phytotoxic ions
- Bacteria, fungi and algae
- Ultra Violet Light
- Slow Sand Filtration (Biofiltration)
- Heat Treatment
- Ultra-Filtration
- Ozone
- Chlorination
- Chlorine dioxide
- Bromine
- Iodine
- Copper ionization
- Common Irrigation Systems Used in Greenhouses
- Hand watering
- Overhead emitters
- Irrigation booms
- Drip tubes (Chapin or spaghetti tubes)
- Capillary mat systems
- Ebb-and-flow benches
- Dutch trays
- Troughs
- Flood floors
- Floating Beds
- Root misting
- Hanging basket
- Common Supporting Components of Irrigation Systems
- Injectors
- Stock tanks, holding tank and constructed
- Filters
- Solenoid valves
- Pressure regulators
- Clocks/computer controls
- Water meters
- Back-flow preventers
- Special Considerations When Using Subirrigation and Recirulating Irrigation Systems
