Chapter 13

Micro-irrigation Systems for Vineyards

(book excerpts)

Micro-irrigation is the standard water delivery method for vineyards. Micro-irrigation consists of frequent low volume, low pressure application of water on the soil surface by an outlet device called an emitter. Emission devices used consist of emitters that are either in-line (integrated inside the tube) or on-line emitters (external on drip tube), and mico-sprinklers systems (used primarily in vineyards on sandy soils or for growing cover crops). Micro-irrigation is the most efficient way to supply supplemental moisture to grapevines. A well-designed micro-irrigation system loses practically no water to runoff, deep percolation, or evaporation. Micro-irrigation reduces water contact with grapevines leaves, stems, and berries. Thus, conditions may be less favorable for disease development. Irrigation scheduling can be managed precisely to meet grapevine demands, holding the promise of increased yield and fruit quality. Micro-irrigation is also referred to as drip or trickle irrigation.

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Within This Chapter: Micro-irrigation Systems for Vineyards

  • Introduction to Micro-irrigation Systems for Vineyards
  • Micro-irrigation System Components
  • Power Units for Pumping
  • Pumps
  • Pump Requirements
  • Filters
  • Centrifugal Sand Separators
  • Sand Media Filters
  • Screen Filters
  • Disc Filters
  • Pipe Network
  • Main and Submain Lines
  • Laterals
  • Pressure Regulators
  • Specialty Valves
  • Water Flow Meters
  • Propeller Meter
  • Magnetic Flowmeter
  • Control Systems
  • Emitters
  • Drip Irrigation
  • Micro-sprinkler Irrigation
  • Flow Rates
  • Chemigation System Components
  • Water Quality for Micro-irrigation Systems
  • Water Quality Analysis
  • Physical Properties
  • Chemical Properties
  • Calcium Carbonate (lime scale)
  • Iron and Manganese
  • Biological Properties
  • Maintenance of Micro-irrigation Systems
  • Filter Maintenance
  • Screen Filters
  • Sand Media Filters
  • Line Flushing
  • Chemical Treatment - Chlorination
  • Chlorine Concentration Schemes
  • Sources of Chlorine
  • Calculations for Liquid Chlorine
  • Chlorine Application Precautions
  • Chemical Treatment - Acidification
  • Types of Acids
  • Injection Rate
  • Application
  • Water Wells for Vineyard Irrigation Systems
  • Aquifers
  • Well Drilling
  • Well Design
  • Well Pump
  • Well Casing
  • Well Screen
  • Gravel Pack
  • Water Development
  • Water Testing
  • References