The irrigation system default values are based on industry experience gained across a number of modelling studies and documents.
The default depth per application and return period for each system is shown in Table 1. These were based on typical values for a ‘Depth applied to achieve target; fixed return period’.
Table 1. Default depth per application and return period
1 PAW is the Profile available water to 600 mm depth
2 Values are for default option of ‘1 shift per day’. For the option ‘2 shifts per day’, the values are the integer value of half the ‘1 shift per day’ values.