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The district requirement is adjusted to allow for any district delivery supply escapes and losses associated with delivering water to the district. The volume removed before getting to the crop is called the escape volume. The escape volume can either be lost from the system or returned back to the water user as a return flow. This is optional in the demand model configuration and can be added by right clicking the Irrigator (menu item) and selecting Supply Escape. It is expressed as a percentage
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This is used to define parameters specifically related to the crop to be planted. Add a new crop by right clicking Irrigator and selecting Add Crop Type. The Source Scientific Reference Guide should be consulted for greater detail regarding parameters for the following sections.
Feature Editor - Irrigator (General Crop Configuration and Soil Configuration)
Fallow Crop
Areas that are not being cropped are referred to as fallow. Fallow area occurs between cropping seasons or during the irrigation season if the maximum developed area is not planted. The fallow cropping area does not order or receive irrigation water. Although the depth of rootzone is also specified for fallow, the fallow has no rootzone. This is treated as the depth of soil from which evaporation can occur.
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Feature Editor - Irrigator (Crop Economics)
Crop Runoff
This is to specify the proportion of applied irrigation water that becomes runoff, as well as the runoff that can be harvested and returned
Crop Deep Percolation
This is to specify the percentage of applied irrigation and rainfall that becomes deep percolation and drains below the rootzone.