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Extra Virgin Olive Oil Savantes Tasting Programme, New York, USA

New York, 31 October to 1 November, 2019

Savantes Introduces Enhanced ‘Frequent Tasters’ Recognition for Associates

Silver. Gold and Platinum Associate Savante Certificates will now be awarded.

Growing and processing olives and olive oil...

Information about planning, planting, pruning, picking and processing olives and olive oil!

Melbourne Extra Virgin Olive Oil Savantes

21st to 22nd November 2019 - Tasting the world's best extra virgin olive oils!

A mature orchard in a 500mm rainfall area will need at least 5 megalitres of good irrigation water per hectare.

Applying one mm of water on to one hectare uses 10 kilolitres of irrigation water.

Important factors affecting irrigation are:

  • Soil type.
  • Slope of land.
  • Local climate.
  • Annual rainfall.

Critical times when water shortage could affect growth or production are:

  • Planting.
  • Flower formation in early summer.
  • Fruit setting.
  • Frosts.

Water requirements will vary according to soil type and slope. As a guide estimated requirements for a tree growing in a 5 x 8m layout grove, including rainfall, are given in The Olive Handbook.

Options for Irrigation

  • Hand-watering:
    • labour intensive.
  • Flood irrigation:
    • uneven water application
    • often wasteful.
  • Drip irrigation:
    • higher set-up costs
    • reduced evaporation losses
    • good filtration needed
    • can restrict root development
    • can be buried
    • easiest to manage for saline water.
  • Micro-sprinkler irrigation/overhead irrigation:
    • higher set-up costs
    • good filtration needed
    • encourages wider root formation
    • higher evaporation losses than drip irrigation
    • can be buried.

Application efficiency of irrigation systems



Irrigation System Efficiency
Furrow/Flood Less than 50%-90% (depends on soil and slope)
Overhead Sprinkler  65%-75%
Micro sprinkler 75%-85%
Drip Greater than 85%


Other factors to consider when selecting an irrigation system:

  • Ease of use and maintenance.
  • Cost.
  • Water quality and quantity (including salinity).
  • Ability to incorporate chemicals and fertiliser.
  • Frost protection.
  • Irrigation of cover crops.
  • Environmental conditions such as wind.
  • Topography.
  • Ability to supply sufficient volume of water.

Irrigation System Design

It is recommended that you have the irrigation system designed professionally to industry standards by a designer accredited by the Irrigation Association of Australia.

Design should cover:

  • Mains, sub-mains and lateral piping.
  • Application rate of system (mm/h).
  • Pumping rate for total system flow rate.
  • Percentage of wetted area.

Irrigation of Young Trees

The following is a rule of thumb for the application of irrigation to young trees.


Area of grove floor shaded by tree canopy at midday  % of irrigation for mature grove to be applied
10%  20%
20%  40%
50%  100%